What is the minimum order quantity?

The minimum order quantity is 1 set.

Lab Positive-Negative Pressure Dual Purpose Low Noise Diaphragm Vacuum Pump

Name: Lab Positive-Negative Pressure Dual Purpose Low Noise Diaphragm Vacuum Pump
Brand: Zhengzhou Wollen Instrument Equipment Co., Ltd.
SKU: 2004218595

Henan, ChinaZhengzhou Wollen Instrument Equipment Co., Ltd.

US$250.00-650.00

1 Set

Product profile

Customization

Available

After-sales Service

24 Hours Online

Warranty

One Year

Model NO.

GM-0.5B

Oil or Not

Oil Free

Structure

Diaphragm Vacuum Pump

Exhauster Method

Positive Displacement Pump

Vacuum Degree

High Vacuum

Work Function

Mainsuction Pump

Working Conditions

Dry

Name of Commodity

Diaphragm Vacuum Pump

Model

GM-0.5b

Shell Material

Engineering-Plastics

Inside Material

PTFE

Function

Vacuum Supply

Certificate

Motor Power

160W

Electrical Requirements

1phase, 220V/50Hz

Inlet Diameter

6mm

Outlet Diameter

Silencer

Ultimate Vacuum Degree

50mbar

Pumping Speed

30L/Min

Pump Head

Double

Overall Size

300X120X235mm

Gross Weight

10kg

Transport Package

Plywood Box

Specification

300x120x235mm

Trademark

WollenLab

Origin

China

HS Code

8414100090

Production Capacity

500sets/Month

Key features

Oil-Free Operation: No working medium required, ensuring zero pollution and high air purity.

PTFE Corrosion Resistance: PTFE-treated parts withstand strong acids, alkalis, and organic solvents.

Low Noise Design: Frictionless membrane movement and imported bearings ensure quiet operation.

Continuous Operation: Designed with automatic cooling for 24-hour uninterrupted running.

Adjustable Pressure: Flexible design meets specific vacuum degree and gas flow rate needs.

Compact and Lightweight: Small size and light weight save lab space and facilitate movement.

Company profile

Importers and ExportersFast DeliveryCustomization from SamplesOEM Services

Zhengzhou Wollen Instrument Equipment Co., Ltd.

Henan, China

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: ≤4.87h

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.