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Energy Saving Oilless Air Compressors 75kw100HP Servo Motor Inverter Rotary Compressors Compressor De Aire

Energy Saving Oilless Air Compressors 75kw100HP Servo Motor Inverter Rotary Compressors Compressor De Aire

Overview
Rapid Details
Condition:New                                                      Kind:CZPT                                 Configuration:Stationary
Power Supply:AC Power                                      CZPT Fashion:Lubricated       Mute:No
Location of Origin:ZheJiang , China (Mainland)
Model Title:CZPT                                          Certification:ISO,CE,ASME         Warranty:one yr
Voltage:380v/3ph/50hz(or CZPT)
Dimension(L*W*H):1800*1070*1490mm                                                                 Fat:1290kg
Free of charge air shipping and delivery:ten.1-13.5m3/min                        Strain:7-12bar                         Motor energy:75kw/100hp
CZPTtricity:380v/3ph/50hz(or CZPT)             CZPT design:Air cooling            CZPT:30L
CZPT strategy:Immediate pushed Compression stage:One phase
Following-product sales Support Presented:Engineers offered to support equipment overseas

CZPT Ability
CZPT Potential:2000 Piece/Items for every Month

CZPT & Supply
CZPT Information
CZPT Crate,Full Closed Woode Scenario.1pcs/every
Port:HangZhou,China

CZPT Conserving oilless CZPTs   75kw100HP Servo Motor CZPT Rotary CZPTs CZPT De Aire 

 

SERVO VARIABLE SPEED DRIVE SCREW AIR CZPT 
TECHNICAL PANRAMETER LIST
Model Exhaust Pressure
(Mpa)		 Air Flow
(m³/min)		 Motor Power
(KW)		 Size
(L*W*H)mm		 Outlet Size Weight
(kg)		 (Materia)
APM-20A .8  two.3  fifteen 1160*seven hundred*1100 three/4″ 350 Aluminum
1.0  two.0 
APM-30A .8  3.8  22 1200*900*1150 1″ 530
1.0  3.6 
APM-40A .8  5.2  30 1560*1000*1365 1½” 630
1.0  4.8 
APM-50A .8  six.5  37 1560*a thousand*1365 750
one.0  five.7 
APM-60A .8  seven.5  forty five 1560*a thousand*1365 830
1.0  6.8 
APM-75A .8  ten.5  fifty five 1800*1070*1490 2″ 1120
one.0  eight.9 
APM-100A .8  13.5  seventy five 1800*1070*1490 1290
1.0  11.5 
APM-120A .8  16.5  ninety 2100*1400*1780 1900 Iron
1.0  13.7 
APM-150A .8  twenty.5  110 2500*1450*1800 2½” 2300
1.0  17.9 
APM-175A .8  24.0  132 2700*1550*1800 3500
one.0  21.3 
APM-220A .8  28.5  one hundred sixty 2700*1550*1800 3800
1.0  twenty five.5 

Our Companies

After-sale Support

• Any queries or requests before, for the duration of or after revenue, we would like to support you any time and will locate you the very best resolution in 24 hrs.

• Guarantee: One 12 months for the whole equipment CZPT spare components will be presented with ideal value.

• Over board engineer support is offered.

 

Particular CZPT Support

one) Full OEM

• Amount: at minimum five pcs

• In this plan, we will do all the adjustments (Coloration, identify plate and emblem) as your want, and will not cost added price.

2) 50 percent OEM

• Amount: no limit

• Underneath this system, we can make the essential alteration (identify plate and brand) but we will charge some added payment for the title plate, as the title plate factory has the MOQ.

three) Emblem OEM

• Amount: no restrict

• Only the emblem will be transformed to yours, and no extra price will be charged.

 

Overseas Engineer Support

• We are offered to deliver our engineer for aboard service. Only require you to prepare the accommodation, transportation and translator. Additional value for each will be reviewed primarily based on local price stage.

Make contact with
 

Attn Cherry Chen
Tel/Mob (571) 3809571/ 13719063869
E-mail exp33@ahaircompressor
World wide web http:///
Add Office:Space 608-610,Lida plaza,No.611-619 CZPTn Road,CZPT District,HangZhou China
Factory: CZPT CZPT Park, CZPT District, HangZhou, ZheJiang , China

 

Attributes Of Server PMSM Frequency CZPT Air CZPT 

How can a compressed air system support you increase profitability? The answer is actually quite straightforward: by making certain that you obtain the highest productiveness in your store even though reducing the overall cost of ownership to the complete lowest stages.

Extraordinary Price

1. Final Trustworthiness

• CZPT is so self-assured in the overall performance of these compressors, that we offer you a selection of extended warranty  offers designed to offer you with highest functioning stability. 
• Intelligent integration removes leaks and force drops, ensuring  highest trustworthiness.

 

2. Supreme Performance

• Provides more air for less horsepower, conserving hundreds of bucks for every yr on energy 
• Eradicates wasteful unloaded managing by biking the compressor on/off .

 

3. Supreme Adaptability

• With a simplified, simple to maintain construction and with prolonged daily life components, a trouble-totally free procedure is provided 
Compact equipment design supplies minimum doing work room

 

Sensible Integration

one. A Groundbreaking Advancement

Heading considerably past combining the compressor, dryer and filters in a single deal, intelligent integration also:

• Gets rid of susceptible interconnecting piping 
• Minimizes pressure losses and drops 
• Integrates the compressor, dryer and filter into an energy-reducing, optimized system 
• Incorporates the total offer-facet system into one whisper-tranquil bundle, enabling set up almost everywhere
• Supplies generous room to advertise cooling and to let unobstructed provider

 

two. Dry and Thoroughly clean Compressed Air

The Right Air CZPT to Do the Job

• All Overall Air Program packages come completely geared up with an integral, strength-conserving air therapy centre including a higher-functionality air dryer and filtration pack to eliminate h2o, oil and particles from the air stream. 
• All factors are properly matched to provide the appropriate air good quality to boost air-powered resource and technique gear daily life.

 

three. High-effectiveness Parts

Setting the Normal in Method Layout

The Complete Air Technique incorporates only the highest quality parts to make certain that both system performance and productivity are maximized– a substantial-effectiveness compressor area with no the trouble, complexity and fees of the standard compressor place. Complete Air System deals come entirely outfitted with:

• A high-efficiency rotary screw CZPT 
• An strength-saving cycling refrigerated air dryer 
• A high-performance coalescing filter 
• A high-effectiveness particulate filter 
• An integral air receiver storage tank 
• Built-in compressor and dryer controls 
• Reduced strain drop piping

 

four Life time benefits

(Rewards are nearly endless )

• Plug-and-engage in simplicity–eliminates the foremost triggers of failure in air techniques: incorrect sizing and installation 
• Virtually no put in costs–eliminates eighty% of set up time, materials and costs 
• Integral packaging saves valuable floor room for other utilizes. 
• Lifetime energy cost savings via hugely successful components 
• Elevated efficiency by way of greater air top quality-Eradicates h2o and corrosion ensuing in extended resource and gear lifestyle

 

For far more details about product form, make sure you simply click Make contact with US >  

 

CZPT CZPT Spare Elements 

 

PLC(Siemens/Schneider)

• Significantly boost support lifestyle

• Effective troubleshooting and defense operate

 

Consumption valve(HOERBIGER from Austria)

• Program automatically adjusts the usage
volume of gasoline accordingly

• Method routinely adjusts the usage
quantity of gasoline appropriately

Motor (CZPTtian, Xihu (West Lake) Dis.g, 
identical good quality as CZPT of Usa)

• CZPT class IP54, insulation course F

• Performance 3%-five% greater than equivalent merchandise

Air finish (German engineering) GHH

• Increased efficiency and much more reliable

• Increased performance and far more reliable

Air filter (Germany MANN)

• 99.9% dedusting result, ensuring 
dustproof quality of CZPT

  

Double screw (Sweden SKF)

• High precision, long service life

Three quality air and oil separator 
(Germany MANN)

• Built-in hugely productive air and 
oil separator core, ensuring oil 
articles of compressed air below 
3PPM

Oil filter (Germany MANN)

• With effectiveness twenty% higher than 
the typical

• CZPT accuracy up to 9μm

 

Software

 

 

• Our items are commonly used in electrical power technology, semiconductor, shipbuilding, oil discipline, rubber, foods, pharmacy, package, digital, communication, cement, eyeglasses, chemical, textile, papermaking, fuel, and oil refining, etc.

 

 

Company Information

 

 

HangZhou CZPT CZPT Co., Ltd is the professional production and exporter.  We are specialised in CZPT investigation, improvement and creation. The major goods which includes screw CZPT, piston CZPT and air dryer and many others. With the advanced layout, higher trustworthiness, lower noise, extended running life time, our merchandise are extensively used in power generation, semi conductor, transport, ship building, oil field, rubber, foods, pharmacy, bundle, digital, interaction, cement, glasses, chemical, textile, papermaking, gas, oil refining etc.

 

 

FAQ

Q1: Are you factory or trade firm?

A1: We are manufacturing facility.

 

Q2: What the exactly handle of your manufacturing unit?

A2: Our firm is situated in CZPT CZPT Park, CZPT District, HangZhou, ZheJiang , China

 

Q3: Guarantee conditions of your device?

A3: A single calendar year guarantee for the equipment and technical support according to your wants.

 

This autumn: Will you offer some spare areas of the equipment?

A4: Sure, of course.

 

Q5: What about product package deal?

A5: We pack our items strictly with CZPT seaworthy circumstance.

 

Q6: What about the voltage of goods?

Can they be CZPT? A6: Sure, of system. The voltage CZPT in accordance to your equirement.

 

Q7: Which payment time period can you acknowledge?

A7: 40% T/T in advanced, sixty% T/T in opposition to the B/L duplicate.

 

Q8: How prolonged will you just take to set up creation?

A8: 380V 50HZ we can shipping the items within 7-fifteen days. Other electric power or other coloration we will delivery in twenty five-thirty days.

 

Q9: Can you accept OEM orders?

A9: Indeed, with expert style crew, OEM orders are extremely welcome.

 

Q10: Which trade time period can you settle for?

A10: Offered trade terms: FOB, CIF, CFR, EXW, CPT, and many others.

Energy Saving Oilless Air Compressors 75kw100HP Servo Motor Inverter Rotary Compressors Compressor De Aire

8 Bar 0.8MPa Oilless Energy Efficient Electric Motor Screw Air Compressor

8 Bar 0.8MPa Oilless Energy Efficient Electric Motor Screw Air Compressor

CZPT Conserving Rotary CZPT Air CZPT Positive aspects

1.CZPT Increased vitality preserving screw CZPT achieved the super power preserving level
 
2.CZPT Efficient Index 1(EEI one) authorized in accordance to GB19153-2009, the energy intake is 10%~15% reduce than EEI 2.
 
three.CZPT CZPT design with 42 types of technologies patent, genuine bigger air flow 
 
4.Point out-of-the-artwork screw aspect, CZPT Germany CZPT air end, ladvanced SAP profile style, outstanding Sweden SKF factor bearings
 
5.CZPT air compressdor dopts planet-renowned components, this kind of as Schneider electronics from 
France, Mann filters from Germany, CZPT stress sensor from 
Denmark, and so on. lead to ensure the compressor longer services daily life.
 
6.Smart touch display design and 0 pressure fall style
 
7.Increased effectiveness cooling program and electrical motor
 
8.CZPT steel pipes, sensible internal layout, ensure long service life with no maintenance.

CZPT Parameters Of CZPT Saving Rotary CZPT Air CZPT 

Product Maxinmum operating
 pressure		 Ability(Trend)* Mounted motor       
 power		 driving
 mode&
 CZPT
 method		 Dimensions
(mm)		 Weight Noise
 level**		 Air 
outlet
 pipe 
diameter
50 HZ 60 HZ
bar(e) psig mthree/min cfm mthree/min cfm kw hp L W H kg dB(A)
DA-fifty five+ seven.five 109 11.33 four hundred 11.fifty four 407 55 75 Direct 
CZPTn  
     Air    
 CZPT		 2200 1400 1600 1600 sixty nine G2″
8.5 123 11.12 393 eleven.23 396 55 75
ten.five 152 nine.79 346 9.7 343 fifty five 75
13 189 9.seven 343 9.66 341 55 seventy five
DA-seventy five+ 7.5 109 14.sixty three 516 14.73 520 75 a hundred 2200 1400 1600 1700 sixty nine G2″
8.five 123 fourteen.fifty two 513 fourteen.57 515 75 a hundred
10.five 152 11.23 396 eleven.43 404 seventy five one hundred
13 189 nine.7 343 9.73 344 seventy five one hundred
DA-ninety+ seven.five 109 19.8 699 19.seventy nine 699 ninety one hundred twenty 2950 1800 2300 2500 72 DN80
eight.5 123 19.seventy eight 698 19.78 698 ninety 120
10.5 152 sixteen.forty eight 582 18.fifty four 655 ninety a hundred and twenty
13 189 13.six 480 sixteen.32 576 ninety 120
DA-one hundred ten+ 7.five 109 22.sixty six 800 22.87 807 one hundred ten 150 2950 1800 2300 3500 75 DN80
8.5 123 22.fifty six 796 22.fifty six 796 one hundred ten 150
10.five 152 18.eighty five 666 19.seventy eight 698 a hundred and ten a hundred and fifty
thirteen 189 eighteen.54 655 sixteen.32 576 110 one hundred fifty
DA-132+ 7.5 109 27.6 975 27.19 960 132 one hundred seventy five 2950 1800 2300 3950 seventy five DN80
eight.5 123 26.99 953 27.04 955 132 175
ten.five 152 22.45 793 22.sixty two 799 132 a hundred seventy five
thirteen 189 18.eighty five 666 22.twenty five 786 132 one hundred seventy five
DA-160+ 7.5 109 32.fifty three 1149 32.36 1143 160 215 3700 2300 2450 5000 75 DN80
8.5 123 32.forty nine 1147 32.34 1142 160 215
ten.5 152 27.58 974 27.19 960 160 215
13 189 22.4 791 22.22 784 a hundred and sixty 215
DA-185(W)+ seven.five 109 forty two.55 1502 40.27 1422 185 250 Direct 
CZPTn
  Air     
CZPT     
W-Drinking water
 CZPT		 3700 2300 2450 5500 seventy five DN100
eight.5 123 forty two.fifty three 1502 40.18 1419 185 250
ten.five 152 33.fourteen 1170 33.1 1169 185 250
thirteen 189 27.31 964 27.19 960 185 250
DA-200(W)+ 7.five 109 forty four.sixty one 1575 forty two.44 1498 200 270 3700 2300 2450 6500 seventy eight DN100
8.5 123 44.fifty nine 1574 forty two.33 1495 200 270
ten.five 152 33.14 1170 33.one 1169 200 270
13 189 27.31 964 27.19 960 200 270
DA-220(W)+ 7.five 109 46.89 1656 fifty one.06 1803 220 three hundred 3700 2300 2450 6700 78 DN100
8.five 123 forty six.83 1654 50.ninety six 1799 220 three hundred
ten.5 152 38.24 1350 39.seventy six 1404 220 three hundred
thirteen 189 32.81 1158 32.seventy seven 1157 220 three hundred
DA-250(W)+ 7.five 109 fifty six.24 1986 56.26 1986 250 350 3700 2300 2450 6800 78 DN100
8.5 123 56.22 1985 fifty six.01 1978 250 350
10.5 152 forty one.6 1469 45.89 1620 250 350
thirteen 189 37.eighty five 1337 39.37 1390 250 350
DA-280(W)+ 7.five 109 58.four 2062 sixty.39 2133 280 375 4300 2400 2350 7500 seventy eight DN125
8.5 123 fifty eight.09 2051 60.36 2131 280 375
ten.five 152 46.75 1651 forty nine.92 1763 280 375
13 189 forty one.19 1454 forty five.forty two 1604 280 375
DA-315(W)+ 7.five 109 62.seven 2214 sixty six.fifty seven 2351 315 425 4300 2400 2350 7800 80 DN125
8.5 123 sixty two.sixty two 2211 sixty six.57 2351 315 425
10.5 152 fifty four.92 1939 56.1 1981 315 425
thirteen 189 forty one.6 1469 forty nine.forty three 1745 315 425
DA-355(W)+ 7.five 109 seventy two.seven 2567 seventy four.2 2620 355 475 4300 2400 2350 8500 80 DN125
eight.5 123 72.sixty two 2564 74.05 2615 355 475
ten.5 152 62.08 2192 65.nine 2327 355 475
thirteen 189 forty six.seventy five 1651 49.92 1763 355 475

*) Trend in accordance with ISO 1217 : 2009, Annex C: Complete ingestion strain 1 bar (a), cooling and air consumption temperature 20 °C
**) Noise degree as for each ISO 2151 and the standard CZPT ISO 9614-2, procedure at optimum operating strain and highest pace tolerance: ± 3 dB(A)
***) EEI 1- CZPT Effiency Index one, which refers to increased vitality saving collection

CZPT Factory & Product Lines

CZPT Air CZPT In Hannover Messe 2017

We carefully selected for you the classic scenario

Increased CZPT Conserving Air CZPT in Oman

Venture Name: Sandblasting in Muscat, Oman.

Item Name: 75KW 100HP Increased CZPT Preserving screw CZPT EEI 1 (CZPT Performance Index one) with air dryer, air receiver tank and air filters.

Design No. & Qty: DA-75+ x 1.

Functioning Time: From June, 2016 till now

Occasion: In June, 2015, 1 set of CZPT enhanced power preserving CZPT program was installed in Muscat Oman. This is the very first task finished by CZPT distributor in Oman. Our associate Mr. Hari shared the photos at doing work website to us as a good commencing. That means a lot more and more CZPT power preserving options will contribute to the industries in Oman in the near future. CZPT CZPT manufacturing facility and CZPT distributor will consider the best to provide top top quality items, price successful resolution and superb support for local consumers in Oman. In get to make sure the most expert service, the distributor programs to send out 2 service engineers to CZPT manufacturing unit in ZheJiang for instruction and learnin. We will update the information at that time.

FAQ

Q1: Are you factory or trade business?  
A1: We are factory.

Q2: What the just deal with of your manufacturing unit? 
A2:  Our company is found in No. 6767, Tingfeng Rd. CZPTn District, ZheJiang 201502, China
And our factory is located in No.58,Hulu highway, Xinbang Town, CZPT area, CZPTang District, ZheJiang , China

Q3: Guarantee phrases of your CZPT equipment? 
A3: Two several years guarantee for the machine and technical help in accordance to your demands.

This fall: Will you give some spare parts of the CZPT? 
A4: Yes, of program.

Q5: How long will you take to prepare generation? 
A5: 380V 50HZ we can shipping the items within 10 days. Other electrical energy or other coloration we will shipping and delivery inside of 22 days

Q6: Can you accept OEM orders? 
A6: Of course, with specialist style staff, OEM orders are highly welcome.

Get in touch with CZPT 

Business Identify: ZheJiang CZPT CZPT Co., Ltd

 

 

Web site: www.CZPT.net

8 Bar 0.8MPa Oilless Energy Efficient Electric Motor Screw Air Compressor

BV50L 3HP Aluminum Motor Oilless Direct Drive Air Compressor

BV50L 3HP Aluminum Motor Oilless Direct Drive Air Compressor

3HP motor 50L tank 8bar oil-lubrication direct travel CZPT

Completely automatic ON/OFF control
CE certification of CZPT & air tank
Guarantee One particular year 
Settle for OEM
 

Identify BV50L CZPT
Power two.2KW 3HP AC Motor 2pole
Tank 50L 13Gal
Air displacement 221L/min seven.8cfm
Force 8bar 115psi

Immediate Generate AIR CZPTS
It is widely employed for numerous home based mostly works or Do-it-yourself duties, these kinds of as drilling, hammering, sanding, grinding, cutting, nailing, stapling, wrenching, portray and a lot more. 

Engine dimension: 3HP
Energy intake: 2.2KW
Voltage: 220~240V 50hz / 60hz
Rated speed: 2850rpm
Air displacement: 7.8cfm
Audio level: 98dBA
Discharge strain: 8bar 115psi
Restart stress:4.8bar 70psi
Tank capability: 50L 13Gal
Air outlet: G1/4bsp or swift couplers
package deal: carton
Merchandise excess weight: 32kgs
Package deal measurement: seventy four.five*31*70cm

MEMO: Oil-lubrication pump, please use compressor oil specifically into crankcase.

 

BV50L 3HP Aluminum Motor Oilless Direct Drive Air Compressor

Hongrun 2.6kw Copper Wire Motor Oilless Oil Free Air Compressor for Dental Uints

Hongrun 2.6kw Copper Wire Motor Oilless Oil Free Air Compressor for Dental Uints

We generate five collection oil-free CZPTs, HB, Hd, DE, HW, HY. High definition and DE series oil-totally free CZPTs utilize DURR and FIAC heads. HY, HW and HB use our personal Hongrun heads.

Attributes of Hongrun oil-totally free CZPTs:
Oil-cost-free: Do not need any lubricated oil, output air without having any oil, defend air appliances.
Antirust tank: The within of tank is coated with spraying, which guarantees thoroughly clean air and fights corrosion.
CZPT adjustment: High quality strain change used to management the energy of CZPT immediately by adjustment of strain level.
Straightforward operation: Utilizing immediately when connecting with power.

Simple servicing: No need any lubricated oil.
Reliable good quality: Use one period and a few phases motors, reduce faults fee, immediate present piston, prolong more time life.
Can be geared up with silence box, drying system, filtering technique, drying diploma can reach to -forty diploma, filtering precision can get to to .01μ M.
Basic safety using: Air compressors outfitted with self-defense device, when voltage isn’t really steady or have other irregular issue, can self-shield, computerized reset when temperature is decrease.

Besides frequent traits, HY and HW sequence have specific super -silent design and style that can reduce sounds pollution. Meanwhile, HW sequence is a lot more tremendous strength-conserving than other collection, superior design, large volume of air technology, minimal power consumption, volume of air generation is 1.5-2 times than frequent piston compressors underneath very same electrical power and strain.
All series can be chosen to be outfitted with cabinets.
 

Model Voltage Head Kind Electrical power
 		 The Max Strain
HBG-400 380V/50HZ/three 4V 2.6kW 400L/min
Rotation Air Tank Weight Demension  
1440RPM 100L 130KGS 1050*450*800mm  

 

Hongrun 2.6kw Copper Wire Motor Oilless Oil Free Air Compressor for Dental Uints

V Type Motor Oilless Oil Free Silent Portable Air Compressor

V Type Motor Oilless Oil Free Silent Portable Air Compressor

We create 5 series oil-free of charge CZPTs, HB, Hd, DE, HW, HY. High definition and DE sequence oil-cost-free CZPTs utilize DURR and FIAC heads. HY, HW and HB use our personal Hongrun heads.

Qualities of Hongrun oil-cost-free CZPTs:
Oil-free: Don’t require any lubricated oil, output air without any oil, safeguard air appliances.
Antirust tank: The inside of of tank is coated with spraying, which makes certain clear air and fights corrosion.
CZPT adjustment: Substantial quality stress switch utilized to manage the electricity of CZPT immediately by adjustment of force degree.
Easy procedure: Using right when connecting with energy.

Simple servicing: No require any lubricated oil.
Dependable quality: Use one phase and three phases motors, reduced faults price, immediate recent piston, prolong for a longer time daily life.
Can be equipped with silence box, drying system, filtering system, drying diploma can get to to -40 degree, filtering precision can get to to .01μ M.
Basic safety utilizing: Air compressors equipped with self-safety unit, when voltage isn’t really steady or have other irregular situation, can self-shield, automatic reset when temperature is decrease.

Apart from widespread attributes, HY and HW collection have unique tremendous -silent layout that can lessen sound air pollution. Meanwhile, HW sequence is more tremendous energy-preserving than other series, sophisticated design and style, large quantity of air generation, minimal energy use, volume of air generation is one.five-2 times than widespread piston compressors underneath same power and strain.
All collection can be selected to be equipped with cupboards.
 

Product Voltage Head Variety Electrical power
 		 The Max Strain
HBG-four hundred 380V/50HZ/3 4V two.6kW 400L/min
Rotation Air Tank Bodyweight Demension  
1440RPM 100L 130KGS 1050*450*800mm  

 

V Type Motor Oilless Oil Free Silent Portable Air Compressor

Copper Wire Motor Oil Free Silent Portable Oilless Air Compressor

Copper Wire Motor Oil Free Silent Portable Oilless Air Compressor

We produce 5 collection oil-totally free CZPTs, HB, Hd, DE, HW, HY. High definition and DE series oil-free of charge CZPTs implement DURR and FIAC heads. HY, HW and HB use our possess Hongrun heads.

Traits of Hongrun oil-free of charge CZPTs:
Oil-cost-free: Will not need any lubricated oil, output air without having any oil, defend air appliances.
Antirust tank: The within of tank is coated with spraying, which assures clear air and fights corrosion.
CZPT adjustment: Substantial quality force change utilised to manage the energy of CZPT immediately by adjustment of strain level.
Basic procedure: Utilizing immediately when connecting with electrical power.

Effortless routine maintenance: No require any lubricated oil.
Trustworthy good quality: Apply one stage and three phases motors, reduced faults rate, direct recent piston, extend lengthier lifestyle.
Can be outfitted with silence box, drying method, filtering system, drying degree can achieve to -forty degree, filtering precision can attain to .01μ M.
Security utilizing: Air compressors geared up with self-protection system, when voltage is not secure or have other abnormal problem, can self-shield, automatic reset when temperature is reduced.

Besides common qualities, HY and HW series have particular tremendous -silent design and style that can decrease noise air pollution. In the meantime, HW sequence is much more tremendous power-preserving than other collection, advanced style, substantial quantity of air technology, lower power intake, volume of air generation is 1.5-two times than typical piston compressors underneath exact same electrical power and pressure.
All sequence can be selected to be outfitted with cupboards.

Variety Voltage Type of head Max. strain The Max Air Stream Max. strain
HY-one thousand 380V/50Hz/3 ZB300X5 .8MPa 1000L/min .8Mpa
Adjustable range
of strain switch placing		 Electricity Velocity Air tank
.five-.7MPa 1.1KwX5 1450RPM 200L

Copper Wire Motor Oil Free Silent Portable Oilless Air Compressor

Electric Motor Dry Type Oilless Screw Air Compressor 7.5kw

Electric Motor Dry Type Oilless Screw Air Compressor 7.5kw

CZPT Silent/Mute CZPT Dry Oil Totally free Oilless Direct CZPT Rotary Double CZPT Kind Air CZPT Positive aspects

1.Clean air 100% oil-free of charge, course 0 oil free air according to ISO8537-one  
 
2.Undertake GHH air finish manufactured in Germany
 
three.CZPT patent employed in oil cost-free compressed air technique
 
four.Significant energy preserving, environmental-pleasant and pollution-free
 
5.Reduced operation and servicing value
 
6.Effective MAM microcomputer controller and touch screen
 
seven.Designed especially for health care, pharmacy, instrument, coating, chemical market and foodstuff processing, and so forth. 

CZPT Dry Type Oil Free CZPT Air CZPT In Hannover Messe 2017
 

CZPT Class Certification

Comparison among dry oil free of charge compressor and lubricated screw CZPT

Dry Sort Oil-totally free Air CZPT CZPT Parameters

Design Greatest functioning pressure Capability(Fad)* Mounted
motor
electricity		 CZPT Method Sound Stage** Dimensions
(mm)		 Weight Air  Outlet Pipe Diameter
fifty Hz sixty Hz
bar(e) psig m³/min cfm m³/min cfm kW hp dB(A) L W H kG
DWW-fifty five seven 102 nine.35 330 eight.06 285 fifty five 75 Air CZPT W-drinking water CZPT seventy four 2000 1200 1650 1900 G1-one/two”
8 116 9.17 324 eight.04 284 fifty five 75 74 2000 1200 1650 1900 G1-one/two”
10 one hundred forty five 8.eleven 286 seven.05 249 55 seventy five 74 2000 1200 1650 1900 G1-1/two”
DWW-55W 7 102 nine.35 330 8.06 285 55 75 seventy four 2000 1200 1650 1800 G1-one/2″
eight 116 9.17 324 8.04 284 55 seventy five 74 2000 1200 1650 1800 G1-1/two”
ten a hundred forty five 8.11 286 seven.05 249 fifty five 75 seventy four 2000 1200 1650 1800 G1-one/2″
DWW-seventy five seven 102 twelve.seventy one 449 11.56 408 seventy five 100 74 2000 1200 1650 2100 DN50
eight 116 eleven.78 416 eleven.53 407 seventy five one hundred 74 2000 1200 1650 2100 DN50
ten a hundred forty five eleven.fifty seven 409 10.11 357 75 100 seventy four 2000 1200 1650 2100 DN50
DWW-75W 7 102 12.seventy one 449 11.56 408 75 one hundred 74 2000 1200 1650 2000 DN50
eight 116 eleven.seventy eight 416 eleven.fifty three 407 75 one hundred seventy four 2000 1200 1650 2000 DN50
10 a hundred forty five 11.57 409 ten.eleven 357 75 one hundred seventy four 2000 1200 1650 2000 DN50
DWW-90 7 102 fourteen.6 515 thirteen.61 480 90 120 seventy six 2800 1800 1860 2800 DN50
eight 116 fourteen.32 506 13.forty seven 476 ninety a hundred and twenty seventy six 2800 1800 1860 2800 DN50
ten 145 thirteen.fifty five 478 twelve.five 441 ninety a hundred and twenty 76 2800 1800 1860 2800 DN50
DWW-90W seven 102 fourteen.six 515 thirteen.sixty one 480 ninety a hundred and twenty seventy six 2800 1800 1860 2180 DN50
8 116 fourteen.32 506 13.forty seven 476 90 120 76 2800 1800 1860 2180 DN50
10 a hundred forty five thirteen.55 478 twelve.5 441 ninety 120 76 2800 1800 1860 2180 DN50
DWW-110 seven 102 twenty.27 716 N/A*** N/A*** 110 one hundred fifty 78 2800 1800 1860 3200 DN65
eight 116 19.03 672 N/A*** N/A*** 110 one hundred fifty seventy eight 2800 1800 1860 3200 DN65
ten 145 sixteen.sixty five 588 15.57 550 110 a hundred and fifty seventy eight 2800 1800 1860 3200 DN65
DWW-110W 7 102 20.27 716 N/A*** N/A*** one hundred ten 150 78 2800 1800 1860 3050 DN65
8 116 19.03 672 N/A*** N/A*** one hundred ten one hundred fifty 78 2800 1800 1860 3050 DN65
10 145 sixteen.65 588 15.57 550 one hundred ten 150 seventy eight 2800 1800 1860 3050 DN65
DWW-132 7 102 23.94 845 20.09 709 132 a hundred seventy five 78 2800 1800 1860 3340 DN65
eight 116 22.47 793 19.87 702 132 a hundred seventy five 78 2800 1800 1860 3340 DN65
ten one hundred forty five 20.19 713 N/A*** N/A*** 132 175 seventy eight 2800 1800 1860 3340 DN65
DWW-132W 7 102 23.94 845 20.forty eight 723 132 175 78 2800 1800 1860 3170 DN65
eight 116 22.47 793 20.26 715 132 one hundred seventy five seventy eight 2800 1800 1860 3170 DN65
10 a hundred forty five twenty.19 713 19.82 seven hundred 132 one hundred seventy five seventy eight 2800 1800 1860 3170 DN65
DWW-160 seven 102 27.26 962 twenty five.47 899 one hundred sixty 215 78 2800 1800 1860 3700 DN65
eight 116 25.86 913 25.seventeen 889 160 215 seventy eight 2800 1800 1860 3700 DN65
ten 145 23.87 843 23.eighteen 819 160 215 78 2800 1800 1860 3700 DN65
DWW-160W seven 102 27.26 962 twenty five.forty seven 899 a hundred and sixty 215 78 2800 1800 1860 3300 DN65
8 116 25.86 913 twenty five.seventeen 889 one hundred sixty 215 78 2800 1800 1860 3300 DN65
ten a hundred forty five 23.87 843 23.eight 819 160 215 seventy eight 2800 1800 1860 3300 DN65
DWW-185 7 102 30.19 1066 28.88 1571 185 250 78 2800 1800 1860 3900 DN65
eight 116 29.fifty three 1043 28.three 999 185 250 seventy eight 2800 1800 1860 3900 DN65
10 one hundred forty five 27.2 960 27.17 960 185 250 seventy eight 2800 1800 1860 3900 DN65
DWW-185W seven 102 thirty.19 1066 28.88 1571 185 250 seventy eight 2800 1800 1860 3460 DN65
8 116 29.53 1043 28.three 999 185 250 78 2800 1800 1860 3460 DN65
ten 145 27.2 960 27.seventeen 960 185 250 78 2800 1800 1860 3460 DN65
DWW-200W seven 102 36.forty one 1286 31.14 1100 two hundred 270 78 3100 2150 2200 4300 DN100
8 116 33.86 1196 30.fifty two 1078 200 270 seventy eight 3100 2150 2200 4300 DN100
10 one hundred forty five 30.35 1071 28.eighty two 1018 200 270 seventy eight 3100 2150 2200 4300 DN100
DWW-220W 7 102 38.99 1377 37.54 1325 220 300 seventy eight 3100 2150 2200 4500 DN100
eight 116 37.93 1339 36.78 1299 220 300 seventy eight 3100 2150 2200 4500 DN100
ten 145 33.seventy nine 1193 31.08 1097 220 three hundred 78 3100 2150 2200 4500 DN100
DWW-250W seven 102 47.26 1669 forty one.53 1466 250 350 seventy eight 3100 2150 2200 4550 DN100
8 116 43.31 1529 40.69 1437 250 350 seventy eight 3100 2150 2200 4550 DN100
10 one hundred forty five 38.88 1373 37.forty three 1322 250 350 78 3100 2150 2200 4550 DN100
DWW-280W seven 102 51.04 1802 N/A*** N/A*** 280 375 eighty 3400 2400 2200 4800 DN100
eight 116 forty seven.24 1668 N/A*** N/A*** 280 375 80 3400 2400 2200 4800 DN100
ten one hundred forty five forty three.26 1528 forty one.4 1462 280 375 eighty 3400 2400 2200 4800 DN100
DWW-315W 7 102 fifty two.03 1837 N/A*** N/A*** 315 425 eighty 3400 2400 2200 5000 DN100
8 116 51.04 1802 N/A*** N/A*** 315 425 eighty 3400 2400 2200 5000 DN100
ten 145 47.18 1666 N/A*** N/A*** 315 425 eighty 3400 2400 2200 5000 DN100

Lower Pressure Dry Kind Oil-free Air CZPT CZPT Parameters

Product Optimum operating strain Capability(Trend)* Set up
motor
electrical power		 CZPT Method Sound Amount** Proportions
(mm)		 Weight Air
Outlet Pipe Diameter
50 Hz 60 Hz
bar(e) psig m³/min cfm m³/min cfm kW hp dB(A) L W H kG
DWL-55-two 2.five 37 fifteen.33 541 14.four 508 55 seventy five Air CZPT W-h2o CZPT 69 2100 1500 1790 2500 DN100
DWL-55-three 3.five fifty one 12.78 451 10.eighty five 383 fifty five seventy five sixty nine 2100 1500 1790 2500 DN100
DWL-seventy five-two two.five 37 19.ninety two 703 19.85 701 seventy five one hundred 69 2100 1500 1790 2650 DN100
DWL-seventy five-3 3.five fifty one 16.3 575 15.86 560 75 100 69 2100 1500 1790 2650 DN100
DWL-90-2 2.five 37 26.07 921 26.28 928 90 one hundred twenty 72 2800 1800 1860 2750 DN100
DWL-ninety-three 3.5 fifty one 19.54 690 18.3 646 90 120 seventy two 2100 1500 1790 2750 DN100
DWL-110(W)-two 2.5 37 33.16 1171 29.82 1053 110 one hundred fifty 72 3100 2150 2200 3500 DN150
DWL-110(W)-three three.5 51 25.6 904 23.9 884 110 150 72 2800 1800 1860 3000 DN150
DWL-132(W)-two two.5 37 40.24 1421 36.99 1271 132 one hundred seventy five seventy two 3100 2150 2200 3600 DN150
DWL-132(W)-three three.5 fifty one 27.23 961 29.forty three 1039 132 a hundred seventy five 72 2800 1800 1860 3100 DN150
DWL-160(W)-2 2.5 37 49.42 1745 45.two 1596 a hundred and sixty 215 76 3100 2150 2200 3900 DN150
DWL-one hundred sixty(W)-3 three.five fifty one 35.75 1262 35.twelve 1240 one hundred sixty 215 76 3100 2150 2200 3800 DN150
DWL-185(W)-two two.5 37 56.02 1989 fifty two.seventy one 1861 185 250 79 3400 2400 2200 4100 DN150
DWL-185(W)-three 3.five fifty one forty two.21 1490 forty.28 1422 185 250 79 3400 2400 2200 4000 DN150

*) Trend in accordance with ISO 1217 : 2009, Annex C: Complete ingestion pressure 1 bar (a), cooling and air intake temperature twenty °C
**) Sound stage as for every ISO 2151 and the fundamental CZPT ISO 9614-2, operation at maximum working stress and maximum velocity tolerance: ± 3 dB(A)
***) TBD-To Be Talked about
****) W-Water cooling

CZPT Factory

Why Choose CZPT ?
1.CZPT Germany AERZEN/CZPT air finish,more substantial air supply,lower noise.

2. Oil free of charge screw CZPT Pass CE, ISO9001 CZPT Certification

three. One particular of three greatest CZPT manufacturer in China

four. CZPT just before-on-following sales provider

5. Fast reply or solution by e mail or contact
6.Unique oil gas separator with patents

seven.Substantial performance motor, up to 96%

FAQ

Q1: Are you factory or trade company?  
A1: We are manufacturing facility.

Q2: What the specifically address of your manufacturing facility? 
A2: Our company is located in No. 6767, Tingfeng Rd. CZPTn District, ZheJiang  201502, China
And our factory is located in No. 366, YangzhuangBang Street, Pingxing Rd., CZPTi Town,HangZhou, ZHangZhoug CZPT, China

Q3: Warranty phrases of your equipment? 
A3: Two years warranty for the equipment and technical help according to your wants.

This fall: Will you supply some spare components of the devices? 
A4: Yes, of course.

Q5: How prolonged will you consider to prepare manufacturing? 
A5: 380V 50HZ we can delivery the goods within ten days. Other electric power or other color we will shipping and delivery within 22 days

Q6: Can you settle for OEM orders? 
A6: Yes, with professional design team, OEM orders are highly welcome

Contact  CZPT

Firm Title: ZheJiang CZPT CZPT Co., Ltd

Phone: -571-37831923

Mobile: -15214376251

Site: www.CZPT.web

Electric Motor Dry Type Oilless Screw Air Compressor 7.5kw

3HP Aluminum Motor 50L Tank Direct Drive Oilless Air Compressor

3HP Aluminum Motor 50L Tank Direct Drive Oilless Air Compressor

3HP motor 50L tank 8bar oil-lubrication immediate generate CZPT

Fully computerized ON/OFF control
CE certification of CZPT & air tank
Warranty One year 
Take OEM
 

Identify BM50L CZPT
Energy 2KW 3HP AC Motor 2pole
Tank 50L 13Gal
Air displacement 221L/min 7.8cfm
Pressure 8bar 115psi

Direct Push AIR CZPTS
It is widely used for various home primarily based functions or Do it yourself tasks, these kinds of as drilling, hammering, sanding, grinding, slicing, nailing, stapling, wrenching, portray and much more. 

Engine dimensions: 3HP
Electricity use: 2KW
Voltage: 220~240V 50hz / 60hz
Rated speed: 2850rpm
Air displacement: seven.8cfm
Audio stage: 98dBA
Discharge strain: 8bar 115psi
Restart stress:4.8bar 70psi
Tank ability: 50L 13Gal
Air outlet: G1/4bsp or rapid couplers
package: carton
Merchandise fat: 32kgs
Bundle size: seventy four.five*31*70cm

MEMO: Oil-lubrication pump, you should use compressor oil specifically into crankcase.

 

3HP Aluminum Motor 50L Tank Direct Drive Oilless Air Compressor

Hongrun 4 Cylinder Pistion Motor Oilless Silent Air Compressor for Simulator

Hongrun 4 Cylinder Pistion Motor Oilless Silent Air Compressor for Simulator

We make 5 series oil-cost-free CZPTs, HB, Hd, DE, HW, HY. High definition and DE series oil-cost-free CZPTs use DURR and FIAC heads. HY, HW and HB use our own Hongrun heads.

Qualities of Hongrun oil-free CZPTs:
Oil-cost-free: Do not require any lubricated oil, output air with out any oil, protect air appliances.
Antirust tank: The inside of tank is coated with spraying, which assures clean air and fights corrosion.
CZPT adjustment: Substantial good quality strain change used to manage the energy of CZPT routinely by adjustment of pressure degree.
Easy operation: Employing straight when connecting with electricity.

Simple maintenance: No want any lubricated oil.
Reliable good quality: Apply one section and 3 phases motors, lower faults charge, immediate existing piston, increase longer daily life.
Can be outfitted with silence box, drying system, filtering program, drying diploma can achieve to -forty degree, filtering accuracy can reach to .01μ M.
Safety employing: Air compressors outfitted with self-defense device, when voltage is not steady or have other abnormal issue, can self-shield, computerized reset when temperature is reduce.

In addition to widespread traits, HY and HW collection have specific tremendous -silent design and style that can minimize noise air pollution. Meanwhile, HW sequence is far more tremendous power-conserving than other series, innovative design and style, higher quantity of air era, lower power usage, volume of air technology is 1.5-2 occasions than common piston compressors underneath identical electrical power and pressure.
All series can be picked to be outfitted with cabinets.
 

Model Voltage Head Type Energy
 		 The Max Pressure
HBG-four hundred 380V/50HZ/3 4V 2.6kW 400L/min
Rotation Air Tank Excess weight Demension  
1440RPM 100L 130KGS 1050*450*800mm  

 

Hongrun 4 Cylinder Pistion Motor Oilless Silent Air Compressor for Simulator

3 M3 Min 8 Bar Electrical Motor Oil Free Oilless Screw Type Air Compressor

3 M3 Min 8 Bar Electrical Motor Oil Free Oilless Screw Type Air Compressor

Drinking water-lubricated Oil-free CZPT Air CZPT Rewards:

one.Clean air 100% oil-totally free
 
two.Use h2o as an alternative of oil, increased cooling performance and compression performance
 
3.Optimal isothermal compression
 
four.Effective MAM microcomputer controller and contact monitor
 
5.Affordable Composition, with perfect balancing
 
6.Factors manufactured of anti-rust and anti-corrosion components make sure the longevity
 
seven.Significant vitality conserving, environmental-pleasant and pollution-free of charge
 
eight.Developed particularly for healthcare, pharmacy, instrument, coating, chemical market and foodstuff processing, and so forth.

CZPT Water-lubricated Oil Free of charge CZPT Air CZPT In Hannover Messe 2017 

CZPT Parameters Of Drinking water-lubricated Oil-free CZPT Air CZPT:

Design Optimum working 
strain		 Capability(Fad) installed motor
 power		 Noise 
dB(A)		 Dimensions
(mm)		 Weight Air Outlet
bar(e) psig m3/min cfm kw hp L*W*H kg pipe Diameter
DAW-7 seven 102 one.two 42.four seven.5 10 fifty eight 1200×775×1000 630 G1″
8 116 one.fifteen 40.61 7.5 ten
ten a hundred forty five one.02 36.02 7.five 10
twelve.5 181 .ninety seven 34.three 7.5 10
DAW-eleven seven 102 1.sixty two 57.two 11 fifteen 58 1200×775×1000 630 G3/four”
eight 116 one.fifty five fifty four.seventy three eleven 15
ten 145 one.32 forty six.61 11 15
12.5 181 one.25 forty four.14 eleven fifteen
DAW-fifteen seven 102 2.fifty two 89 fifteen twenty sixty three 1400×1000×1200 650 G1″
eight 116 2.4 eighty four.74 15 20
ten a hundred forty five 2.twelve seventy four.nine fifteen twenty
twelve.5 181 one.sixty one 56.85 15 twenty
DAW-eighteen seven 102 three.25 114.8 eighteen.five twenty five 65 1400×1000×1200 970 G1″
eight 116 3.1 109.five eighteen.5 twenty five
ten one hundred forty five 2.sixty two ninety two.51 18.5 25
twelve.5 181 2.thirteen 75.21 18.five 25
DAW-22 7 102 three.sixty seven 129.six 22 30 65 1400×1000×1200 a thousand G1″
eight 116 three.5 123.six 22 30
ten one hundred forty five 3.thirteen 110.fifty two 22 30
12.five 181 two.61 ninety two.2 22 30
DAW-thirty 7 102 five.25 185.4 thirty 40 66 1850×1150×1300 1250 G1-one/two”
eight 116 five 176.6 thirty 40
ten a hundred forty five 4.2 148.3 thirty 40
twelve.five 181 three.eighty one 134.fifty three thirty forty
DAW-37 seven 102 6.four 226 37 50 67 1850×1150×1300 1250 G1-one/2″
eight 116 six.1 215.4 37 50
10 a hundred forty five five.22 184.32 37 50
twelve.5 181 four.eighty one 169.84 37 50
DAW-forty five 7 102 seven.sixty six 270.5 forty five 60 sixty eight 1850×1150×1300 1569 G2″
eight 116 seven.three 257.eight 45 sixty
ten one hundred forty five 6.13 216.5 forty five 60
12.5 181 five.65 199.5 45 60
DAW-55 7 102 ten.08 355.ninety two fifty five 75 70 1900×1500×1700 1665 G2″
eight 116 9.6 339 fifty five 75
10 a hundred forty five 8.six 303.7 fifty five seventy five
12.5 181 7.42 262 55 seventy five
DAW-seventy five 7 102 13.twelve 463.three seventy five one hundred seventy three 1900×1500×1700 1500 DN50
eight 116 twelve.5 441.four seventy five 100
ten 145 eleven.42 403.24 seventy five one hundred
12.five 181 9.eighty three 347.one 75 one hundred
DAW-ninety(W) seven 102 17.11 604.two 90 120 seventy three 1900×1500×1700 1800 DN50
8 116 sixteen.3 575.6 ninety 120
ten 145 fourteen.fifty two 512.7 90 a hundred and twenty
12.5 181 twelve.three 434.31 90 a hundred and twenty
DAW-one hundred ten(W) seven 102 twenty.37 719.3 110 one hundred fifty seventy eight 2150×1600×1800 2300 DN65
8 116 19.four 685.01 one hundred ten one hundred fifty
10 145 sixteen.9 596.seventy four a hundred and ten one hundred fifty
12.five 181 fifteen.1 533.2 110 one hundred fifty
DAW-132(W) 7 102 23.32 823.43 132 175 seventy eight 2150×1600×1800 2500 DN65
eight 116 22.21 784.24 132 175
10 one hundred forty five 20.38 719.sixty two 132 one hundred seventy five
twelve.five 181 eighteen.29 645.eighty two 132 a hundred seventy five
DAW-one hundred sixty(W) 7 102 thirty.29 1069.fifty four a hundred and sixty 215 78 2150×1600×1800 3000 DN65
eight 116 28.85 1018.seven 160 215
10 145 24.fifty two 865.eight a hundred and sixty 215
twelve.5 181 22.17 782.eighty two 160 215
DAW-200(W) 7 102 38.12 823.43 200 270 78 3100×1700×2090 3690 DN80
8 116 36.39 1284.9 two hundred 270
10 one hundred forty five 29.eighty one 1052.six 200 270
twelve.five 181 27.forty three 968.six two hundred 270
DAW-250(W) seven 102 43.seventy nine 1546.two 250 350 seventy nine 3100×1700×2090 3900 DN100
eight 116 forty two.6 1504.two 250 350
10 145 38.75 1368.3 250 350
twelve.five 181 34.43 1215.7 250 350

*) Requirements are matter to alter without prior notice

CZPT Manufacturing facility:

At CZPT, we generate our customers’ believe in and pleasure by production the superior top quality compressed air items for all industries. All of our products are made for reliable overall performance, easy maintenance, and maximum strength effectiveness. CZPT has been exporting to much more than 90 countries across the globe. We have sales associates who can speak English, Spanish, French, Russian and Arabic, which tends to make it easier for our clients from all above the globe to interact and negotiate with us. 

 

CZPT Exhibition

FAQ:

Q1: Are you manufacturing unit or trade business?  
A1: We are manufacturing facility.

Q2: What the exactly tackle of your factory? 
A2: Our firm is located in No. 6767, Tingfeng Rd. CZPTn District, ZheJiang 201502, China
And our manufacturing facility is located in No. 366, YangzhuangBang Road, Pingxing Rd., CZPTi City,HangZhou, ZHangZhoug CZPT, China

Q3: Warranty terms of your device? 
A3: Two years guarantee for the machine and technological support according to your requirements.

Q4: Will you give some spare elements of the equipment? 
A4: Yes, of course.

Q5: How long will you just take to arrange generation? 
A5: 380V 50HZ we can shipping the goods in 10 days. Other electrical power or other coloration we will delivery inside of 22 days

Q6: Can you accept OEM orders? 
A6: Yes, with professional layout group, OEM orders are highly welcome.

Make contact with CZPT 

Firm Name: ZheJiang CZPT CZPT Co.,Ltd

 

 

Web site: http://www.CZPT.web

3 M3 Min 8 Bar Electrical Motor Oil Free Oilless Screw Type Air Compressor