Seal-Less Magnetic Gear Pump Motors for Demanding Fluids
Brushless DC motors coupled to a magnetically driven gear pump — zero leakage, ±2% flow precision, corrosion-proof wetted parts, 10,000h+ life. Built for chemical dosing, pharmaceutical and food-grade fluid transfer by an ISO 9001 OEM/ODM factory.
- Magnetic coupling —no shaft seal, no leakage
- BLDC closed-loop control — ±2% flow, low pulsation
- PPS / PVDF / PEEK wetted parts — acid & solvent safe
- Quote replied within 24h · 100% full-load tested
Get a Custom Pump-Motor Quote
Why Magnetic Gear Pump Motors
The magnetic-drive design removes the mechanical shaft seal — the #1 failure point in traditional pumps. That single change delivers four advantages your buyers care about.
Zero Leakage
Seal-less magnetic coupling transfers torque through the housing wall — no shaft penetration, no leaks of acids, solvents or sterile fluids.
High Precision
BLDC closed-loop control holds flow within ±2% with minimal pulsation — ideal for metering, dosing and analytical instruments.
Corrosion Resistant
Wetted parts in PPS, PVDF or PEEK withstand acids, alkalis, solvents and food-grade media without degradation.
Long Service Life
Brushless motor + low-wear magnetic drive rated ≥10,000 hours — quiet (<45 dB) and maintenance-free in continuous duty.
Where the Leak-Free Advantage Comes From
A technical note worth reading: the leak-free performance comes from the magnetic pump architecture, not from the BLDC motor alone. The magnetic coupling transfers torque through the pump housing wall and removes the dynamic shaft seal — the motor's job is the smooth, precise, long-life drive that makes that architecture work.
Conventional Pump
Motor → Shaft Seal → Pump
Dynamic seals are the #1 wear-and-leak point under aggressive fluids, temperature swings and continuous duty.
Magnetic Gear Pump
BLDC Motor → Magnetic Coupling → Gear Pump
The coupling eliminates the dynamic shaft seal, isolating the fluid from the drive side — the BLDC motor delivers the smooth, low-maintenance drive behind it.
Technical Specifications
Standard range below; every parameter can be customized for your fluid, voltage and duty cycle.
| Parameter | Specification |
|---|---|
| Motor Type | Brushless DC (BLDC) — optional stepper |
| Rated Voltage | 12V / 24V DC (custom 6–48V available) |
| Rated Power | 3 W – 3000 W |
| Speed | 1,000 – 6,000 rpm |
| Flow Rate | 30 – 2,000 mL/min (model dependent) |
| Max Pressure | 0.5 – 3.0 bar |
| Pump Head Material | PPS / PVDF / PEEK (corrosion-proof) |
| Coupling | Magnetic drive — seal-less, zero leakage |
| Protection Grade | IP55 / IP65 |
| Noise Level | ≤ 45 dB |
| Medium Temperature | -10 °C to +80 °C |
| Service Life | ≥ 10,000 h |
| Certification | CE · RoHS · REACH · ISO 9001 |
Motor Matching for Your Magnetic Gear Pump
Send your pump requirements — our engineers map each one to the right motor selection.
| Pump Requirement | Motor Consideration |
|---|---|
| Flow Rate | Motor speed & operating point |
| Pressure | Required motor torque |
| Pump Displacement | Speed, torque & power |
| Fluid Viscosity | Torque & speed requirements |
| Operating Temperature | Thermal design & protection |
| Voltage | Winding & controller configuration |
| Installation Space | Diameter, length & mounting |
Application Scenarios
From aggressive chemicals to sterile pharma and food fluids — one sealed platform covers them all.
Chemical & Lab
Acid/alkali dosing, reagent transfer, sampling — leak-free handling of aggressive media.
Pharmaceutical
Sterile drug-fluid transfer, diagnostic reagents — clean, contamination-free metering.
Food & Beverage
Flavor & color dosing, dairy, beverage lines — food-grade wetted materials.
Water & Analytical
Treatment dosing, chromatography, instrument fluid circuits — precise & stable.
Why Buy From Greensky Power
A vertically-integrated motor manufacturer — not a trader. You talk to the engineers who build your pump-motors.
OEM & ODM Capability
Custom voltage, flow, shaft, pump-head material and controller — from prototype to mass production.
15+ Years Export Experience
Shipped to 50+ countries with full documentation: CE, RoHS, REACH, MSDS and compliant packaging.
Certified & Fully Tested
ISO 9001 plant; 100% full-load, leak and flow testing before shipment; 12-month warranty.
Proven in the Field
Sample projects from overseas B2B buyers across industries.
European Lab Equipment Maker
Needed a leak-free micro pump for aggressive reagent dosing in portable analyzers.
Pharmaceutical OEM (Asia)
Required sterile, contamination-free fluid transfer with food/medical-grade materials.
Beverage Flavoring Line
Wanted precise color & flavor dosing with easy CIP cleaning and no cross-contamination.
Frequently Asked Questions
Is it really zero leakage?
Can it handle corrosive chemicals?
What flow rates and pressures are available?
Do you provide OEM / ODM and custom specs?
What is the lead time for samples?
Which fluids are compatible?
Contact
✉ mkt@greensky-power.com
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