Aftermarket POWERMASTER III Pneumatic Pump
This page describes an aftermarket heavy-duty air-operated pump that cross-references the Lincoln POWERMASTER III. Lincoln is a trademark of its respective owner. This is an aftermarket pump, not manufactured, sponsored, or endorsed by Lincoln. POWERMASTER III designations are for cross-reference identification only. The pump is intended for oils, greases, adhesives, sealants, and other medium to high viscosity materials in demanding industrial environments.
Air Motor and Pump Tube Configurations
Air motor sizes include 3, 4, 6, 8, and 10 inch diameters (76 to 254 mm). Ratios vary by motor and tube combination from about 6:1 to 42:1 in industrial configurations. The air motor and pump tube are ordered as a set because the ratio depends on both. Use 3 to 4 inch motors for light and medium duty, and 6 to 10 inch motors for heavy duty.
| Air motor size range | 3 to 10 inch (76 to 254 mm) |
| Typical ratio span | 6:1 to 42:1 |
| Light and medium duty | 3 to 4 inch motors |
| Heavy duty | 6 to 10 inch motors |
Stroke and Output
The full 6 inch (152 mm) stroke maximizes material output per cycle. The modular design allows pump tubes to interchange with all Series III air motors. The air motor has only five moving parts with no metal-to-metal contact.
Materials and Temperature
Pump tube construction options include carbon steel, 316 stainless steel, or hard chrome plated. The operating temperature range is -34 to +93 C. Match wetted materials to your material because oils, adhesives, and sealants each need the right tube and seal package.
Empty-Drum Protection
AirBrake automatic shutdown stops the pump on empty drums, broken supply lines, or loss of prime. An optional remote alarm signal kit is available. Low-level air cut-off is included on certain models such as 83811, 83970, and 84143. Confirm which protection your configuration includes before ordering. See the grease pump options or review the heavy equipment lubrication system page for related equipment.
What to Confirm Before Ordering
Confirm air motor size and required plant air volume. Confirm pump tube code, immersion length, and drum size for 16, 30, or 55 gallon drums. Confirm wetted materials and seal package for your material. Confirm AirBrake inclusion. Confirm ratio for the motor plus tube combination. Read the complete guide to grease pumps and then contact the team with your requirements.
Frequently Asked Questions
Which air motor size should I choose?
3 to 4 inch motors suit light and medium duty. 6 to 10 inch motors suit heavy duty and higher air volume.
What does the ratio mean?
Ratio depends on the motor plus tube combination. Industrial configurations range from 6:1 to 42:1.
Can the pump tube be changed later?
Yes, pump tubes interchange with all Series III air motors. You can switch tubes without replacing the motor.
What materials can this pump handle?
It pumps oils, greases, adhesives, sealants, and other medium to high viscosity materials. Match wetted parts to the material.
Does it stop on an empty drum?
AirBrake versions stop on empty drums. Confirm AirBrake inclusion before ordering your configuration.
What drum sizes does it fit?
It fits 16, 30, and 55 gallon drums. Choose immersion length based on your drum.
When should I select 316 stainless steel?
316 stainless steel suits corrosive materials and environments. Select it when carbon steel is not compatible.
What temperature range is allowed?
The operating range is -34 to +93 C. Stay inside that range for reliable service.
What air supply is needed?
Confirm air volume for the motor size before ordering. Plant air supply must match the selected motor.
Who builds this pump, 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 motor size and material.
