What an 8L Foot Pump Does
The 8L foot operated grease pump is a pedal-driven dispenser for workshops that grease machinery every shift. Both hands stay free to hold the coupler on the fitting while the foot drives the piston, so one person can finish a full lubrication route without help. The 8 liter reservoir cuts refill frequency on busy schedules, and the elliptical powder-coated steel tank sits low and wide for stability on concrete. A 2 m steel-braided hose reaches fittings that a short whip cannot, and the pedal returns under spring load after every stroke.
Key Specifications
Ratings below cover the standard build. Confirm the grease grade and hose length against your application before ordering.
| Parameter | Value |
|---|---|
| Tank capacity | 8 L (2.1 gallons) |
| Max operating pressure | 69 MPa (690 bar / 10,000 PSI) |
| Discharge per stroke | 2.7 ml |
| Pressure ratio | 60:1 or better |
| Hose | 2 m x 1/4″ steel braided |
| Grease grades | NLGI 0 to 3 (lithium, calcium) |
| Net weight | 8.5 kg |
| Dimensions | 330 x 260 x 470 mm |
| Pedal force | 35 kgf maximum |
| Temperature | -20 to +60 C |
High Pressure Delivery
The pump develops up to 69 MPa at the outlet, which is enough to push grease through stiff fittings and long lines that a hand gun cannot clear. An automatic pressure relief valve opens when the line reaches its set limit, so pressure cannot build without control while the pedal is held down. A non-return valve in the outlet path stops grease from flowing back into the piston chamber between strokes, which keeps the next stroke primed. The pedal face is anti-slip and the stance is ergonomic, so the operator can work standing with one foot while both hands guide the coupler.
Where an 8L Pump Fits
Production machinery, conveyor systems, fleet and chassis service, and farm equipment all suit this pump. On high-consumption schedules the 8 liter tank means fewer refills than a 4 liter unit, which matters when a route runs across several bays. For lighter carry work, compare the 4L foot operated grease pump. For bulk filling stations, look at the 55 gallon drum grease pump and the 120 lb grease keg pump.
Setup and Daily Care
Fill the tank with NLGI 0 to 3 grease, keeping the fill clean and free of trapped air. Prime with slow pedal strokes until grease flows from the coupler, then wipe the coupler clean before the first fitting. Each day, check that the relief valve moves freely and that the coupler jaws grip the fitting. Wipe the exterior and the pedal pivot, and inspect the hose for cuts or abrasion. Keep the fill area covered so grit does not enter the reservoir, and top up before the level runs low.
What Is Supplied
Each unit comes as a complete assembly: the pump with its elliptical powder-coated steel tank, a 2 m steel-braided high-pressure hose, a coupler, and a carry handle for moving the unit between bays. The pedal is fitted at the factory. No tools beyond a standard wrench are needed to put the pump into service. Spare hoses and couplers can be matched to your fittings through the quote request page.
Frequently Asked Questions
What is an 8L foot operated grease pump?
It is a pedal-operated high pressure grease dispenser for workshop and equipment maintenance. The foot drives the piston while both hands guide the coupler.
How much pressure does it build?
It develops up to 69 MPa, about 10,000 PSI, at the outlet. That clears stiff fittings and long grease lines.
How much grease per pedal stroke?
Each stroke delivers 2.7 ml. That gives accurate dosing and less waste on small bearings.
Which grease grades are allowed?
NLGI 0 to 3 greases work, including lithium and calcium based types. Match the grade to the bearing maker’s recommendation.
How big is the tank?
The tank holds 8 liters. That is enough for multiple greasing rounds between refills on a normal route.
How heavy is the unit?
Net weight is 8.5 kg. One person can carry it by the handle between work areas.
What pedal force is needed?
Pedal force stays at or below 35 kgf. The ratio does the work, so the stroke stays easy to repeat.
What is the difference between the 4L and 8L pumps?
Capacity and refill frequency differ. The 4L unit suits portability, while the 8L unit suits higher consumption; see the 4L foot operated grease pump page.
How is it maintained?
Check the hose, coupler, relief valve and pedal, and keep the grease clean. Wipe the exterior and inspect the hose regularly.
Who builds this pump?
IsoHiTech Lubrication Systems, founded in 2023, engineering since 2006, builds and supports every unit. Email inquiry@isohitech.com for specifications and a quotation.
For pump sizing matched to your route, reach us through the quote request page.
