Does the pump require maintenance?

No, the pump is designed to be maintenance-free with a long product life.

What are the inlet and outlet specifications?

The inlet/outlet OD is 4.8mm with an ID of 2.6mm; a hose with ID 4.0mm is suggested.

What certifications does the product hold?

The product has passed CE, ROHS, REACH, WRAS, and Food Grade certifications.

Diaphragm 12V DC Mini Air Pump

Name: Diaphragm 12V DC Mini Air Pump
Brand: Changsha TOPS Industry & Technology Co., Ltd.
SKU: 690565452

Hunan, ChinaChangsha TOPS Industry & Technology Co., Ltd.

Negotiable

200 Pieces

Product profile

Customization

Available

Material

Pump Head Nylon, Membrane EPDM / PTFE, Valve EPDM

Power

Electric

Model NO.

TM40A-B

Valve Body Type

Pump Head Nylon, Membrane EPDM / PTFE, Valve EPDM

Function

Electronic Type, Field Bus, Industrial Pressure and Vacuum Applications

Features

Oil-Free,Compact Size, Corrosionresistant, Mainten

More Features

High Efficiency, Can Be Mounted in Any Place

Lifetime

15000hour,10000hour,3000hour

Motor

DC Brush, Brushless, Coreless Brushless

Flow Rate

4.5L,5L

More Application

Industrial Pressure and Vacuum Applications,Gas or

Working Way

Continuous or Intermittent Work

Materials

Pump Head Nylon, Membrane EPDM / PTFE, Valve EPDM

Transport Package

Standard Export Packing or OEM Packing

Specification

Standard or Customized

Trademark

TOPSFLO

Origin

China

Production Capacity

100, 000 PCS/Month

Key features

Multiple Motor Options: Choose from Brush, Brushless, or Coreless Brushless motors with lifetimes from 1,500 to 15,000 hours.

Oil-Free Operation: Ensures uncontaminated flow with no oil leakage, ideal for sensitive media and analytical equipment.

Corrosion Resistant Materials: Optional PTFE membranes and FPM valves available for handling corrosive gases like acid and ozone.

Compact and Lightweight: Small dimensions (approx. 75-79mm) and low weight (150-250g) for easy integration into portable devices.

Flexible Orientation: Can operate efficiently in any orientation, making it suitable for complex installation environments.

Advanced Control Support: Outer controller models support PWM or 0-5V speed adjustment, braking, and instant starting.

Comprehensive Certifications: Passed CE, ROHS, REACH, WRAS, and Food Grade certifications for global market compliance.

High Efficiency Performance: High pneumatic performance with low power consumption and low sound levels.

Company profile

Changsha TOPS Industry & Technology Co., Ltd.

Hunan, China

Business Type: Manufacturer/FactoryExport Year: 2001-09-08Nearest Port: shanghai, shenzhenAverage Response Time: ≤8.56hTerms of Payment: LC, T/T, PayPal, etc.International Commercial Terms(Incoterms): FOB, EXW, CFR, CIF

AI-Powered supplier vetting

SummaryChangsha TOPS Industry & Technology Co., Ltd. is identified as a China-based manufacturer/factory and limited company located in Changsha, Hunan. The supplier reports ISO 9001 and TS 16949 management-system certifications, four laboratories meeting CNAS national laboratory certification standards, approximately 50 quality-control staff, 10 production lines, and annual capacity of about 3 million pieces. It has exported since 2001, reports that 90% of sales are exports, and serves markets across multiple regions. Its product scope centers on micro pumps and related applications. Evidence supports manufacturing scale, export experience, quality infrastructure, and R&D capability. However, the provided information does not establish after-sales service arrangements, financial credibility, or customization performance. Customer evidence is limited to one named buyer associated with two product records.

Supplier typeThe supplier is described as both a trade company and a Manufacturer/Factory. The formal business-entity record identifies Changsha TOPS Industry & Technology Co., Ltd. as a manufacturer/factory and limited company, while the basic-information slice separately labels the company nature as a trade company. This indicates mixed classification, but manufacturing status is explicitly present.

CertificationsThe supplier reports TS 16949 and ISO 9001 management-system certifications. It also states that four laboratories meet the CNAS national laboratory certification standard, providing explicit evidence of quality-management and laboratory infrastructure.

R&D capabilityThe supplier describes technology innovation as a core advantage, reports four laboratories meeting CNAS national laboratory certification standards, and indicates 21–30 years of R&D engineer experience. These details explicitly support an established R&D and laboratory base, although no specific patents or quantified innovation outcomes are provided.

Production capacityThe supplier reports 50 quality-control staff, 10 production lines, annual production capacity of about 3 million pieces, and annual production output above the stated threshold. It also reports one-month lead times in both off-peak and peak seasons, supporting substantial and potentially stable production capability.

Client casesTwo trade records associate the supplier with CONTROL PRINT LIMITED and identify water-pump products used as printer parts. These records provide one named customer and product-use evidence, but the dataset does not show a broader customer portfolio, project outcomes, or customer testimonials.

Product Q&A

Q:What motor types are available for this pump?

Four options are available: Premium Brush DC (3,000h), Economical Brush DC (1,500h), Coreless Brushless (15,000h), and Coreless Brushless with outer controller (15,000h).

Q:Can the pump handle corrosive gases?

Yes, optional membrane materials like PTFE and valve materials like FPM are available for corrosive air such as acid, alkali, and ozone.

Q:What is the maximum pressure and vacuum?

The pump can achieve a maximum pressure of 120kPa and a maximum vacuum of -70kPa.

Q:Is the pump suitable for medical applications?

Yes, it is widely used in medical equipment, portable analytical instruments, and air quality sampling monitors.

Q:What is the rated voltage range?

The standard model operates at 12V, while other models support 6V, 12V, or 24V.