This kit is designed for lighter oil-based lubricants and cannot transmit grease. Therefore, it is not suitable for pinpoint lubrication on skid steers or heavy machinery where grease is required.
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Roughneck 50:1 Air Grease Pump, 120 PSI

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Shipping:
Free shipping (lower 48 states) - Available nowStore Pickup:
- 50:1 ratio delivers high-output grease performance
- 120 PSI maximum operating pressure for efficient delivery
- Flow rate of 800g (1.76 lbs.) per minute
- 1/4in. x 6-3/4ft. hose with grease control valve for precise application
- (2) wheels and a handle provide easy mobility in your garage or shop
Prop 65 Warning: See Details
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Description
Key Specs
Reviews
Q & A
Accessories
Warranty
Compare
Product Summary
What's Included
- (1) Grease pump (1) 30-lb. tank (1) Grease control valve
Downloads
Features + Benefits
- 50:1 ratio delivers high-output grease performance
- 120 PSI maximum operating pressure for efficient delivery
- Flow rate of 800g (1.76 lbs.) per minute
- 1/4in. x 6-3/4ft. hose with grease control valve for precise application
- (2) wheels and a handle provide easy mobility in your garage or shop
- 30-lb. seamless pressed tank included
- Designed for use without additional drums or buckets
Key Specs
| Attribute | Specification |
|---|---|
item# | 37900 |
Brand | Roughneck |
Manufacturer's Warranty | 1 year limited warranty |
Ship Weight | 32.0 LB |
Max. Pressure | 120 PSI |
Flow | 8 GPM |
| Attribute | Specification |
|---|---|
Gear Ratio | 50:1 |
Portable | Yes |
Pump Only | No |
Max Fluid Temperature | 140 °F |
Product Weight | lb |
Dimensions L x W x H (in.) | 12.0 x 14.0 x 33.0 in |
Reviews
Questions & Answers
Questions
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Anonymous· 6 months ago
Can this pump be used for pin points on skid steers and heavy machinery? If so do you guys offer grease for it?
1 answer-
RoughneckExpert12· 6 months ago
Helpful?
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Anonymous· 3 years ago
What size of drum will this fit on? A 55 gallon drum? Or 5 gallon pail
1 answer-
RoughneckExpert12· 3 years ago
This grease pump is not designed to fit on a drum or a pail; it includes a 30 lb. tank.
Helpful?
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· 3 years ago
need a manual for this unit
1 answer-
RoughneckExpert12· 3 years ago
The Product Manual is located on the product web page under the Product Summary.
Helpful?
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· 4 years ago
what is the max grease pressure?
1 answer-
RoughneckExpert11· 4 years ago
The maximum outlet pressure is 5600 PSI.
Helpful?
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· 7 years ago
Can you put a longer hose on it?
I would need to put a 25ft hose on it. Also, can you swap the solid line at the gun for a felxable hose?
1 answer-
RoughneckExpert29· 7 years ago
A 25ft. hose can be attached to this unit, however doing so will slow the flow speed down. Replacing the the Z-type fitting for a flexible hose is not recommended.
Helpful?
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· 7 years ago
Will this pump this type of grease: Sinopec (EP000) Semi-Fluid EP Multipurpose Lithium Grease, NLGI 000-35LB. (5 Gallon) Pail
Sinopec (EP000) Semi-Fluid EP Multipurpose Lithium Grease, NLGI 000-35LB. (5 Gallon) Pail
1 answer-
RoughneckExpert11· 7 years ago
This pump is capable of transferring Sinopec (EP000), Semi-Fluid EP Multipurpose Lithium Grease, NLGI 000.
Helpful?
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· 8 years ago
Could this pump be used to pump liquid label adhesive of 100,000 centipoise in a bottling operation?
1 answer-
RoughneckExpert12· 8 years ago
This Roughneck grease pump is not designed for the described application and therefore we cannot recommend it.
Helpful?
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· 8 years ago
How do you put grease in the container
How do you put grease in the container? What do you buy?
1 answer-
RoughneckExpert29· 8 years ago
The lid and pump on this unit can be taken off to fill the drum directly. It is capable of all types of grease up to NLGI-2 consistency.
Helpful?
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Warranty
Manufacturer's Warranty
1 year limited warranty
Extend Your Warranty Coverage with a Northern Protection Plan (NPP)
Repair Plan — 1 Year
A Northern Protection Plan is available after adding the product to your shopping cart.
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Item # 37900
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- $1579.99
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- $1160.99
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Specifications
120 PSI
7,500 PSI
120 PSI
100 PSI
8 GPM
0.36 GPM
48 GPM
0.33 GPM
50:1
50:1
60:1
50:1
Yes
Yes
Yes
Yes
No
No
No
Yes
140 °F
120 °F
45 °F
100 °F
lb
lb
-
-
12.0 x 14.0 x 33.0 in
17.0 x 17.0 x 43.12 in
-
-
-
-
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1/4 in
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