Aftermarket Air Grease Pumps for Alemite Systems
This guide covers aftermarket air-operated grease pumps cross-referencing the Alemite air grease pump range. Alemite is a trademark of its respective owner. These are aftermarket pumps, not manufactured, sponsored, or endorsed by Alemite. Alemite series designations are for cross-reference identification only. Choose from portable and stationary configurations with ratios from 26:1 to 70:1 for bulk grease handling and centralized piping service.
Model Lineup
| 9911-A1 RAM portable 50:1 | 3 inch air motor, 70 lb bulk or 35 lb bucket, two-wheel cart |
| 9950-D1 RAM stationary 50:1 | 4.4 lb/min, 180 kg drum, piping up to 150 ft |
| 8549/8559 H series stationary | 50:1 or 70:1, 1.8-2.5 lb/min, 12.5-400 lb containers |
| 8541 H series portable | 26:1 or 70:1, hand carry or cart mount |
| 7785/7795 heavy duty | Various ratios, tote tanks and high volume supply |
Model 9911-A1 Portable
The 9911-A1 RAM portable pump delivers a 50:1 ratio from a 3 inch air motor. It accepts a 1/4 inch NPT female air inlet and draws from 70 lb bulk or 35 lb bucket with a spacer ring. The 360 degree rotating adjustable outlet supports NLGI 0 to 2 grease. A two-wheel hand cart makes this unit suitable for multi-location service and field lubrication.
Model 9950-D1 Stationary
The 9950-D1 RAM stationary pump provides a 50:1 ratio with output up to 4.4 lb/min, which converts to 2 kg/min. It mounts on a 180 kg drum with a follower plate and lid assembly for continuous supply. Fixed installations work well with piping runs up to 150 ft from the drum location to remote dispensing points.
Choosing Portable or Stationary
Portable pumps suit scattered grease points, fleet service, and field maintenance where moving the pump to the job saves time. Stationary pumps fit centralized piping and high consumption operations with a fixed drum or tote in one place. Confirm air supply capacity before ordering because larger pumps need more air volume to hold rated output. See the grease pump range and heavy equipment lubrication system options for system-wide planning.
What to Confirm Before Ordering
Confirm container size and drum hardware, including follower plate, cover, and bung adapter inclusion. Confirm air inlet size and shop air capacity so the pump runs without starving the motor. Confirm grease grade NLGI 0 to 2 for reliable feed through the pump and piping. For selection details, read the complete guide to grease pumps. If you need help matching a model to your drum, contact the team.
Frequently Asked Questions
What does 50:1 mean on the pump model?
Air pressure is multiplied about 50 times at the motor output. The ratio is pressure multiplication, not a measure of more grease flow.
What is the difference between portable and stationary models?
Portable pumps move on carts for mobile service and scattered grease points. Stationary pumps mount on drums or totes for fixed piping runs.
What container sizes do these pumps handle?
Portable models handle 35 and 70 lb buckets and pails. Stationary models run from 12.5 lb up to 180 kg drums.
Is NLGI 2 grease OK to use?
Yes, these pumps handle NLGI 0 to 2 grease. Stay within that range for reliable feed and flow.
Is a follower plate included with the pump?
Some packages include a follower plate, some do not. Confirm package contents before ordering to avoid missing parts.
How far can piping run from a stationary pump?
The 9950-D1 is rated to 150 ft of piping. Shorter runs help hold pressure at the dispensing point.
What air inlet size do RAM models use?
RAM models use a 1/4 inch NPT female air inlet. Match your air line fitting to that size.
Which model works best for a workshop?
An H series or 9950-D1 stationary pump fits most workshop duties. Choose by daily grease volume and container size.
Does ratio change grease flow from the pump?
Ratio is pressure multiplication only. Grease flow depends on motor size and air volume supplied.
Who builds these pumps, and how do I get a quotation?
IsoHiTech Lubrication Systems, founded in 2023, engineering since 2006, builds and supports every unit. Email inquiry@isohitech.com for specifications and a quotation.
Contact the team with your model and container size.
