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 | 3000rpm High Pressure Hydraulic Pump ，Excavator High Pressure Hydraulic Pump ，A4VG90EP3 variable piston pump | ||
The A4VG90EP3 axial piston hydraulic pump is a high-pressure, variable displacement pump engineered exclusively for hydraulic excavators. Designed for closed circuit systems, it provides outstanding efficiency, reliable performance, and extended service life under heavy-duty excavation tasks. With a maximum speed of 3000 rpm and superior high-pressure capability, the A4VG90EP3 ensures powerful hydraulic output to support digging, lifting, and earthmoving operations in challenging environments.
Hydraulic Excavators: The pump is specifically designed for excavator hydraulic systems, delivering high-pressure power to the boom, arm, bucket, and swing functions.
Optimized to handle continuous heavy-duty cycles, ensuring consistent performance in excavation, trenching, foundation digging, and construction site operations.
High Efficiency: Variable axial piston design reduces energy loss and optimizes hydraulic power output.
High Pressure Performance: Capable of reaching up to 35MPa, supporting demanding excavation requirements.
Durable Structure: Built from steel and aluminum alloy components to withstand harsh construction environments.
Low Noise Design: Ensures improved operator comfort on job sites.
Long Service Life: Integrated oil filtration system enhances reliability and reduces maintenance costs.
| Attribute | Value |
|---|---|
| Model Number | A4VG90EP3DM1/32L-NSD10F07 |
| Displacement | 90 ml/r |
| Work Mode | Closed circuit |
| Rotation Direction | Levorotation |
| Rated Speed | 3000 rpm |
| Maximum Speed | 3300 rpm |
| High Pressure Overflow | 445 bar |
| Cut-Off Pressure | 350 bar (adjustable) |
| Housing Pressure | Max. 2 bar |
| Suction Pressure | Min. 0.8 bar |
| Replenishment Pressure | 25 bar |
| Slippage Pump Displacement | 18 ml/r |
| Control Mode | Electric proportional valve (DC 12V) |
| Filter Precision | 10 μm |
Material Selection: Premium cast steel and aluminum alloy.
Precision Machining: CNC processing ensures strict tolerances.
Heat Treatment: Enhances wear resistance and durability.
Assembly & Testing: High-pressure and performance testing before delivery.
Anti-Corrosion Treatment: Rust-proof coatings for extended reliability.
Fill the pump casing with clean hydraulic oil before operation.
Maintain oil cleanliness at NAS level 9 or better.
Avoid strong impacts to the transmission shaft during transportation.
Prevent hydraulic oil leakage on the outer surface during use.
Conduct regular inspections of filters, oil pressure, and displacement settings.
Warranty: Standard 12-month warranty covering manufacturing defects.
Technical Support: Professional guidance for installation and operation.
Spare Parts: Original replacement parts available for long-term support.
Global Service: Maintenance and repair assistance for international customers.
Q1: Can the A4VG90EP3 be used for other machinery besides excavators?
A1: No. This pump is specifically designed and optimized for hydraulic excavators.
Q2: What type of hydraulic oil is recommended?
A2: ISO VG46 or VG68 hydraulic oil with NAS 9 cleanliness or higher.
Q3: How often should the filter be replaced?
A3: Regularly inspect every 500 operating hours and replace as needed depending on oil quality.
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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