Micro pump
Macro Pump
Larger magnetic drive gear pump for higher transfer flow.
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5 models magnetically driven no shaft seal
Magnetic Drive Micro Gear Pumps For Precise Low Flow
Positive displacement micro pumps where a magnet couples the motor to the gear set, so there is no shaft seal to leak and no path for the liquid to escape.
The Range
Five Micro Pump Variants On The Same Magnetic Drive Principle
The pump head changes with the duty: gear sets for smooth metered flow, larger heads for transfer, PEEK gears where metal contact is not acceptable.
Micro pump
Magnetic Gear Pump
Magnetic drive gear pump for continuous circulation loops.
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Micro pump
Magnetic Pump
Seal free magnetic drive pump for hazardous and volatile liquids.
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Micro pump
SKQB Micro Pump
Magnetic drive micro gear pump for precise low flow duty.
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Micro pump
Small Gear Pump
Compact magnetic drive gear pump for machine mounted duty.
View specifications →Who Buys This Line
- Instrument builders who need a repeatable low flow inside a machine
- Laboratories dosing reagents and preparing samples
- OEMs adding lubrication, coating or adhesive feed to a machine
- Plants circulating heating, cooling or filtering loops on a small scale
Problems It Solves
The seal is the failure point
On a small pump the shaft seal wears out faster than everything else. A magnetic coupling removes it, so the liquid stays inside a closed head.
Dosing accuracy drifts with pressure
A gear pump displaces a fixed volume per revolution, so flow tracks speed rather than system pressure, which keeps metering repeatable.
Pulsation disturbs the process
Gear pumps give near continuous flow compared with a diaphragm pump, which matters when the liquid feeds an analyser or a coating head.
Why This Line
Why Magnetic Drive For Small Flows
Nothing To Leak
With no dynamic seal there is no leak path for solvents, reagents or hazardous liquids, and no gland to maintain.
Speed Controls Flow
Output is proportional to shaft speed, so a variable speed drive turns the pump into a metering device without extra instrumentation.
Built Into Machines
Compact heads and standard motor frames make these pumps easy to mount inside analytical and process equipment.
Application Scenarios
Where These Pumps Do The Work
Circulation Loops
Heating, cooling, filtering, mixing, hydrating and degassing circuits that must run for long periods without attention.
Metering And Additives
Adding a measured stream of additive, lubricant, adhesive or solvent into a process at an adjustable rate.
Transfer And Sampling
Moving a measured amount of liquid to a point of use without changing its characteristics, including hazardous liquid handling.
Industries Served By This Line
Selection Guide
Sizing A Micro Pump
State Flow And Pressure
Flow in millilitres or litres per minute and the pressure the pump has to work against. Micro pumps are chosen on both, not flow alone.
Check Liquid Compatibility
Solvent, acid or reagent decides gear and housing material. PEEK gears are available where metal to metal contact is unacceptable.
Decide How Flow Is Set
Fixed speed for a constant duty, or variable speed drive where the process needs to trim the rate.
Confirm Mounting
Tell us whether the pump goes on a bench, inside a cabinet or on a machine frame, and what supply voltage is available.
Answers
Micro Gear And Magnetic Drive Pumps FAQ
How is a magnetic drive pump different from a normal gear pump?
The motor turns an outer magnet, which drives an inner magnet attached to the gear set through a containment wall. Nothing passes through the housing, so there is no shaft seal to leak or replace.
Can these pumps run dry?
Avoid it. Gear pumps rely on the liquid for lubrication between the gears and the housing. Where dry running is possible in the process, say so at enquiry and we will advise on protection.
How accurate is the dosing?
Displacement per revolution is fixed, so with a controlled speed the volume is repeatable. For an exact figure on your liquid and pressure, send the duty and we will confirm against the model.
Which liquids are suitable?
Clean liquids without abrasive solids. Reagents, solvents, lubricants, coatings and process liquids are all common. Abrasive slurry will wear the gears.
Are the pumps available with PEEK gears?
Yes, PEEK gears are offered on the micro pump range where the liquid or the application rules out metal gears.
Engineering Notes
Guides For This Line
Product Guide
Magnetic Drive Pumps Where A Leak Is Not An Option
Removing the shaft seal removes the most common leak path and the most common maintenance item. Here is where that trade is worth making and where it is not.
Read the guide →
Maintenance Guide
Peristaltic Pump Tubes How To Choose Them And When To Change Them
The tube is the pump. It sets the flow, the chemical compatibility and the service interval, and it is the only part that wears.
Read the guide →Tell Us The Millilitres Per Minute
Flow, pressure and the liquid are enough to pick the head, the gear material and the motor.