Shandong Keystone Hydraulic Co.,Ltd
| Payment Terms | T/T |
| Supply Ability | 5,000 units per month |
| Delivery Time | 7 work days |
| Packaging Details | Wooden boxes and cartons |
| Application | Other,Metering,oil,Sewage,hydraulic jack etc |
| Pressure | High Pressure,Low Pressure,25MPa,less than 44mpa |
| Structure | Piston Pump,Single-stage Pump,Diaphragm Pump,Gear Pump,Vane Pump |
| Power | Hydraulic,Electric,Pneumatic,7.5KW to 75KW,Other |
| Fuel | Diesel,electric,hydraulic oil,Other,standard 380V 50Hz 3phase |
| Theory | Rotary Pump,Centrifugal Pump,Reciprocating Pump,Electromagnetic Pump,Other |
| Standard or nonstandard | Standard |
| Warranty | 1 Year,12 Months |
| Material | Steel,Aluminum Alloy,Cast Iron,Casting Iron,304SS |
| Type | hydraulic gear pump,electric water pump,Rotary,high pressure jet grouting pumps,diesel pump |
| Product name | High pressure micro hydraulic pumps for logsplitter,hydraulic diaphragm metering pump,Model High Pressure Hydraulic Manual Pumps,High pressure hydraulic hand pumps,Compression machine |
| Color | black，blue |
| Voltage | 380V,220v/50hz,415V,etc are all available,220V |
| Oil capacity | 2200 ml,2.2L,901ml |
| Feature | High Efficiency,Long Life,Waste water treatment for house septic tank or flood,Low Noise |
| Brand Name | KERSTERN |
| Model Number | A4VG90 |
| Certification | SIO9001 |
| Place of Origin | China |
View Detail Information
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Product Specification
| Payment Terms | T/T | Supply Ability | 5,000 units per month |
| Delivery Time | 7 work days | Packaging Details | Wooden boxes and cartons |
| Application | Other,Metering,oil,Sewage,hydraulic jack etc | Pressure | High Pressure,Low Pressure,25MPa,less than 44mpa |
| Structure | Piston Pump,Single-stage Pump,Diaphragm Pump,Gear Pump,Vane Pump | Power | Hydraulic,Electric,Pneumatic,7.5KW to 75KW,Other |
| Fuel | Diesel,electric,hydraulic oil,Other,standard 380V 50Hz 3phase | Theory | Rotary Pump,Centrifugal Pump,Reciprocating Pump,Electromagnetic Pump,Other |
| Standard or nonstandard | Standard | Warranty | 1 Year,12 Months |
| Material | Steel,Aluminum Alloy,Cast Iron,Casting Iron,304SS | Type | hydraulic gear pump,electric water pump,Rotary,high pressure jet grouting pumps,diesel pump |
| Product name | High pressure micro hydraulic pumps for logsplitter,hydraulic diaphragm metering pump,Model High Pressure Hydraulic Manual Pumps,High pressure hydraulic hand pumps,Compression machine | Color | black，blue |
| Voltage | 380V,220v/50hz,415V,etc are all available,220V | Oil capacity | 2200 ml,2.2L,901ml |
| Feature | High Efficiency,Long Life,Waste water treatment for house septic tank or flood,Low Noise | Brand Name | KERSTERN |
| Model Number | A4VG90 | Certification | SIO9001 |
| Place of Origin | China | ||
| High Light | A4VG90EP3 High Pressure Hydraulic Pump ，Axial Piston High Pressure Hydraulic Pump ，Firefighting Vehicles axial hydraulic pump | ||
The A4VG90EP3 axial piston variable hydraulic pump is a high-performance closed-circuit pump engineered exclusively for firefighting vehicles. With a maximum speed of 3000 rpm and high-pressure capability up to 35MPa, this pump delivers reliable hydraulic power for fire trucks that demand stability, durability, and rapid response in emergency operations. Constructed from robust steel and aluminum alloy materials, the A4VG90EP3 ensures long service life, energy efficiency, and consistent performance under high-pressure firefighting conditions.
Firefighting Vehicles: Provides powerful hydraulic energy to drive pumps, ladders, water cannons, and auxiliary firefighting equipment.
Emergency Rescue Operations: Ensures stable hydraulic supply for critical life-saving systems.
Municipal Firefighting Fleets: Optimized for long-term heavy-duty use with minimal downtime.
High Efficiency: Variable displacement with electric proportional control (EP3) reduces energy consumption and optimizes performance.
High Pressure Output: Rated pressure of 350 bar with a maximum overflow up to 445 bar.
Durability: Built with corrosion-resistant steel and aluminum alloy, designed for harsh environments.
Low Noise: Reduced operating noise improves the working conditions for firefighting crews.
Long Service Life: Integrated oil filtration and advanced sealing extend operational reliability.
| Attribute | Value |
|---|---|
| Model Number | A4VG90EP3DM1/32L-NSD10F07 |
| Displacement Volume | 90 ml/r |
| Work Mode | Closed Circuit |
| Rated Speed | 3000 rpm |
| Maximum Speed | 3000 rpm |
| Cut-Off Pressure | 350 bar (adjustable) |
| High Pressure Overflow | 445 bar |
| Housing Pressure | Max: 2 bar |
| Suction Pressure | Min: 0.8 bar |
| Replenishment Pressure | 25 bar |
| Control Mode | EP3 Electric Proportional Valve (DC 12V) |
| Filtration Precision | 10 μm |
Selection of high-strength steel and aluminum alloy.
CNC precision machining for dimensional accuracy.
Heat treatment for enhanced wear resistance.
Assembly with anti-contamination protection.
High-pressure performance testing before delivery.
Fill the casing with clean hydraulic oil before operation.
Maintain oil cleanliness at NAS level 9 or better.
Avoid strong mechanical impacts on the transmission shaft during transport.
Protect exposed surfaces and nameplate during painting or assembly.
Regularly monitor oil condition, pressure, and filter performance.
Warranty: 12 months against manufacturing defects.
Technical Support: Expert guidance for installation and maintenance.
Spare Parts: Genuine replacement parts available worldwide.
Service Network: Professional maintenance team for quick response.
Q1: Is the A4VG90EP3 suitable for all fire truck models?
A1: Yes, it is designed specifically for firefighting vehicles and integrates seamlessly with most fire truck hydraulic systems.
Q2: Can the pressure be adjusted for different firefighting tasks?
A2: Yes, the cut-off pressure is adjustable up to 350 bar.
Q3: What type of hydraulic oil should be used?
A3: Recommended ISO VG46 or VG68 hydraulic oil with high cleanliness standards.
Company Details
Business Type:
Manufacturer
Year Established:
2019
Total Annual:
5000000-6000000
Employee Number:
>55
Ecer Certification：
Verified Supplier
Shandong Keystone Hydraulic Co., Ltd. is located in Tai bai hu new district, Jining city, Shandong Province, the hometown of Confucius and Mencius. It is only 40 minutes away from Jining Daxing Airport and Beijing-Shanghai High-speed Railway Station, and only 10 minutes aw... Shandong Keystone Hydraulic Co., Ltd. is located in Tai bai hu new district, Jining city, Shandong Province, the hometown of Confucius and Mencius. It is only 40 minutes away from Jining Daxing Airport and Beijing-Shanghai High-speed Railway Station, and only 10 minutes aw...
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