Capacity: 25L
Air pressure: 10bar/150psi
Inlet / Outlet:1/2‘’ / 1/4‘’

The AOCHENG GPT-25 Pneumatic Grease Pump Kit is designed for grease dispensing in industrial maintenance, mechanical workshops, and equipment servicing. Its 25L capacity provides a practical balance between grease storage and routine dispensing needs. The pneumatic pump supports high-pressure grease delivery for lubrication tasks, helping maintenance teams supply grease to machinery and service points as part of regular equipment care.

| Model | GPT-12 | GPT-25 | GPT-30 |
| Pneumatic pump | 50:1 | 50:1 | 50:1 |
| Capacity | 12L | 25L | 30L |
| Max. fluid pressure | 400bar / 5800psi | 400bar / 5800psi | 400bar / 5800psi |
| Air pressure | 10bar/150psi | 10bar/150psi | 10bar/150psi |
| Max.free flow rate (min) | 800g | 800g | 800g |
| Pump inlet/outlet | 1/2” / 1/4” | 1/2” / 1/4” | 1/2” / 1/4” |
| Delivery hose | 1/4” grease hose 4m | 1/4” grease hose 4m | 1/4” grease hose 4m |
| N,W / G,W | 11KGS/12.5KGS | 12.7KGS/13.7KGS | 13.8KGS/16.5KGS |
| Dimension | 36*32*85.7CM | 36*33.5*83CM | 44.5*44.5*75CM |
1. What makes the GPT-25 pneumatic grease pump kit suitable for workshop and industrial maintenance?
The GPT-25 combines a 25L grease container with a 50:1 pneumatic pump configuration, making it suitable for grease dispensing during machinery servicing and routine industrial maintenance. Its capacity provides a middle option within the GPT series for users who need more grease storage than the GPT-12 but do not necessarily require the 30L GPT-30.
2. What does the 50:1 pump ratio mean when selecting a pneumatic grease pump?
A 50:1 ratio describes the relationship between the pump’s air drive pressure and its theoretical grease output pressure. It indicates a high-pressure pump design for grease dispensing. Actual output pressure and flow depend on the available air pressure, grease characteristics, hose arrangement, and operating conditions; the ratio alone does not guarantee a particular delivery rate.
3. Is the GPT-25 suitable for frequent grease dispensing during equipment maintenance?
The GPT-25 is designed for grease dispensing in maintenance and service environments. Its 25L capacity can reduce refill frequency compared with a smaller container when grease consumption is similar. Suitability for a specific workload depends on daily grease demand, the required dispensing frequency, and the characteristics of the grease being handled.
4. What information should be confirmed before ordering a GPT-25 grease pump kit?
Buyers should confirm the required grease type, container capacity, compressed-air supply, connection compatibility, and the hose and nozzle configuration needed for their lubrication points. They should also check the installation space and whether the listed pressure and flow specifications meet the intended application.
5. Should I choose the GPT-25 or the larger GPT-30 for industrial lubrication work?
The GPT-25 has a 25L capacity, while the GPT-30 holds 30L and is shown with a wheeled base. The GPT-25 may suit operations with moderate grease consumption, whereas the GPT-30 offers a larger container for applications that need more grease between refills. Selection should be based on actual consumption, handling needs, and available workspace.


