Magnetic Drive Gear Pumps

Working Principle
This device consists of two parts: a gear metering unit and a magnetic drive unit. It completely eliminates the shaft seal structure of traditional pumps, achieving contactless power transmission:
1. Power transmission process: The motor drives the outer magnetic rotor to rotate, and through the magnetic field's attractive force, it synchronously drives the inner magnetic rotor inside the isolation sleeve to rotate, which in turn drives the main gear and driven gear inside the pump chamber to mesh and operate. The isolation sleeve completely separates the inner and outer magnetic rotors, forming an absolutely sealed pump chamber.

2. Metering and conveying process: During the gear meshing process, the volume of the tooth groove at the suction end expands, creating a low pressure, and the medium is drawn in and fills the tooth groove; as the gears rotate, the medium is carried to the discharge end, where the tooth groove volume contracts, creating a high pressure and forcing the medium out at a constant flow rate. By adjusting the motor speed, the amount of medium conveyed per unit time can be precisely controlled.

Advantages
1. Zero-leakage sealing, safe and environmentally friendly
The seal-less design fundamentally eliminates the risk of media leakage caused by wear of traditional pump shaft seals. This makes it particularly suitable for conveying highly toxic media (such as cyanide solutions), flammable and explosive media (such as methanol and acetone), highly corrosive media (such as concentrated nitric acid and hydrofluoric acid), and high-purity media (such as pharmaceutical raw materials and lithium-ion battery electrolytes), preventing media volatilization, pollution, personnel injury, and material waste.

2. High-precision metering and strong stability
Continuing the core advantages of gear-type volumetric metering, the flow rate has a strictly linear relationship with the motor speed and is unaffected by outlet pressure fluctuations, achieving a metering accuracy of ±0.5%. Even with changes in media viscosity and switching between high and low pressure conditions, it maintains stable flow output, meeting the stringent process requirements of fine chemical proportioning and precise reagent dosing.

 
Performance parameter

1.Materials: Tool steel,cemented carbide,Staley alloy,304, 316.

2.Sealing: Single and double mechanical seal,Packing seal

3.Installation: motor installation.

4.Pressure: 1-100bar(depending upon viscosity)

5.Viscosity: Up to 1000000Cps

6.Temperature: -18~200℃(Explain it before selection if the temperature is over 90℃)

Packing & Delivery
1.Standard export carton/plywood case or to customer's request.
2.Usually shipped by air.
3.We do our best to ship your order within 1 week after receiving your payment.

 
Product line
 
Our production equipment is highly accurate and varied, and it can fully meet your needs.
 

Test Line
 
 

FAQ
Q: How can I choose the most suitable pump?
A: Please tell me your detailed flow rate, medium, temperature, viscosity, pressure and so on, then I will match the most appropriate pump for you, or you can choose the exact model in the product manual, If you don't know the details for the pump, tell us the usage, must suitable model will be recommended.

Q: How long is your pump lifetime?
A: Pump lifetime mainly depends on motor lifetime, we have DC brush, brushless, coreless brushless motor For your choice, the pump warranty is 12 months. we can supply 1% spare parts for after service.

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