Powered by Made-in-China.com

Laboratory Oil-Less PTFE Corrosion-Resistant Diaphragm Vacuum Pump
US$250.00-650.00
1 Set
Product profile
Customization
AvailableAfter-sales Service
24 Hours OnlineWarranty
One YearModel NO.
GM-0.5BOil or Not
Oil FreeStructure
Diaphragm Vacuum PumpExhauster Method
Positive Displacement PumpVacuum Degree
High VacuumWork Function
Mainsuction PumpWorking Conditions
DryName of Commodity
Diaphragm Vacuum PumpModel
GM-0.5bShell Material
Engineering-PlasticsInside Material
PTFEFunction
Vacuum SupplyCertificate
CEMotor Power
160WElectrical Requirements
1phase, 220V/50HzInlet Diameter
6mmOutlet Diameter
SilencerUltimate Vacuum Degree
50mbarPumping Speed
30L/MinPump Head
DoubleOverall Size
300X120X235mmGross Weight
10kgTransport Package
Plywood BoxSpecification
300x120x235mmTrademark
WollenLabOrigin
ChinaHS Code
8414100090Production Capacity
500sets/MonthKey features
Oil-Free Operation: No oil required, ensuring zero pollution and high air purity with built-in filtering material.
PTFE Corrosion Resistance: PTFE treatment on gas-contact parts withstands strong acids, alkalis, and organic solvents.
24/7 Continuous Run: Automatic cooling and exhaust system enables safe 24-hour continuous operation.
Low Noise Design: Imported bearings and frictionless membrane movement ensure smooth, quiet operation.
Adjustable Pressure: Variable pressure design allows meeting specific vacuum degrees and gas flow rates.
Compact & Lightweight: Small size and light weight save lab space and make the unit easy to move and maintain.
Company profile
CertifiedBusiness Type: Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 3 Years CertifiedNearest Port: Shanghai PortAverage Response Time: ≤3.87h
AI-Powered supplier vetting
SummaryThe supplier is a limited company focused on laboratory instruments, including reactors, incubators, rotary evaporators, and circulating baths. It reports extensive customization, ODM, and OEM capabilities, while export sales represent 90% and markets span multiple regions. Production evidence includes 800 rotary evaporator sets annually and stated peak and off-season lead times of within 15 working days. However, the supplier reports only two employees, fewer than five quality-control staff, one year of R&D engineer experience, no new products in the past year, and no 3D design or SDK capability. After-sales and quality-management documentation is weak or unavailable: there are no written complaint-handling or corrective-action procedures, no overseas service infrastructure, and quality assurance status is unknown. Financial records are identified for 2020–2022, but no assessable financial results are provided.
Supplier typeThe supplier is a limited company that produces and sells laboratory instruments, with self-operated import/export rights and 90% of sales from exports. Its product range includes reactors, incubators, rotary evaporators, and circulating baths, indicating a manufacturer-oriented laboratory-equipment supplier.
After-Sales capabilityThe supplier has no overseas showroom, agents, branches, or reported offline trade-show participation. It also has no written complaint-handling or corrective/preventive-action procedures, although service quotations and payment terms are defined and service-capability assessment records exist without a written procedure.
R&D capabilityThe supplier states that it pursues continuous innovation and product expansion, and it provides ODM and OEM services. However, it reports no new products during the past year, no SDK, no 3D software design service, and only one year of R&D engineer experience, limiting evidence of current innovation strength.
Production capacityThe supplier reports annual rotary evaporator output of 800 sets and lead times within 15 working days in both peak and off-season periods. However, the reported total employee count is only two and quality-control staffing is fewer than five, so overall production scale and operational depth remain difficult to verify.
Customization capabilityThe supplier explicitly offers customization from samples and designs, full, minor, and flexible customization, as well as ODM and OEM services for popular brands. This is direct evidence of broad customization capability, despite the absence of 3D software design and SDK support.
Product Q&A
Q:What is the warranty period for this pump?
A:
We provide a one-year warranty for this product.
Q:Is this pump oil-free?
A:
Yes, it is an oil-less diaphragm vacuum pump that requires no working medium.
Q:What materials are used for the pump body and diaphragm?
A:
The shell is made of engineering plastics, while internal parts and the diaphragm use PTFE and imported rubber for corrosion resistance.
Q:Can this pump operate continuously for 24 hours?
A:
Yes, the automatic cooling and exhaust system ensures it can run continuously for 24 hours.
Q:What are the available models and their pumping speeds?
A:
Available models include GM-0.20 (12L/Min), GM-0.33A (20L/Min), GM-0.5A (30L/Min), GM-0.5B (60L/Min), and GM-1.0A.
Send Inquiry
*To:
Zhengzhou Wollen Instrument Equipment Co., Ltd.
Zhengzhou Wollen Instrument Equipment Co., Ltd.*Content:
Supplier replies will be sent to your registered email
You may also like
Electric Controlled Oil-Less Diaphragm Vacuum Pump GM-2 with 4cfm with Chemical and Corrosion Resistance
US$472.00-675.00
1 unit(MOQ)
Oil Free Corrosion Resistant Diaphragm Vacuum Pump for Laboratory Use
US$588.00
1 Set(MOQ)
GM-2 Diaphragm Vacuum Pump for Laboratory Instrument
US$420.00-520.00
1 Set(MOQ)
Heavy Duty Corrosion Resistant Dry Screw Vacuum Pump for Industrial Applications
US$10,000.00
1 Piece(MOQ)
Laboao Corrosion-Resistant Pump Laboratory Diaphragm Vacuum Pump Low Noise Deep Vacuum
US$280.00-398.00
1 Piece(MOQ)
2BV Series Water Ring Vacuum Pump Industrial High Vacuum Water Circulation Pump Corrosion-Resistant
US$400.00-10,000.00
1 Piece(MOQ)
Corrosion Protection Portable Electric Circulating Water Oilless Vacuum Pump Lab Pump 10L/Min
US$400.00-700.00
1 Set(MOQ)
GWSP300 18.4m³/h (60Hz) 2.6Pa laboratory dry clean gas oil free oil less scroll vacuum pump
US$2,727.00-3,636.00
1 sets(MOQ)
Oil Free Corrosion Resistant Diaphragm Vacuum Pump for Laboratory Use (ETR4H)
US$1.00-5,800.00
1 Set(MOQ)
High Vacuum Oil Lubricated Low Noise Rotary Vane Laboratory Vacuum Pump
US$437.00-457.00
1 Piece(MOQ)
Oil-Less Vacuum Pump Laboratory Chemical-Resistant Oil-Free Diaphragm Vacuum Pump
US$61.00-69.00
1 Piece(MOQ)
Electric Single-Stage Liquid Ring Vacuum Pumps with Corrosion Resistant Feature
US$1,900.00-6,600.00
1 Piece(MOQ)
Chemical Processing Roots Vacuum Pump Slds-2200LC Corrosion-Resistant Coating
US$2,999.00-6,999.00
1 Set(MOQ)
Low Noise 2BV Water Ring Vacuum Pump Corrosion Resistant Vacuum Pump for Food Processing Production
US$300.00-400.00
1 Piece(MOQ)



















