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 | variableHigh Pressure displacement axial piston pump ，A4VG90EP3 variable displacement axial piston pump ，Mixer Trucks axial piston pump | ||
The A4VG90EP3 High Pressure Variable Axial Piston Pump is a closed-circuit hydraulic pump engineered exclusively for concrete mixer trucks. With a maximum speed of 3300 rpm, it delivers reliable and efficient hydraulic power to drive the mixer drum, ensuring continuous and stable concrete mixing in demanding construction environments. Built with high-strength steel and aluminum alloy, this pump combines durability, precision, and low-noise operation, making it the ideal choice for heavy-duty mixer applications.
The A4VG90EP3 pump is designed only for concrete mixer trucks, where it powers the rotation of the drum to ensure concrete quality during transport. It is widely used in ready-mix concrete operations, infrastructure construction, road building, and large-scale engineering projects.
High-pressure performance up to 35MPa for heavy-duty concrete mixing.
Variable displacement control with EP3 electric proportional valve (DC 12V).
Efficient and low-noise design improves working environment.
Strong housing made from steel and aluminum alloy for long service life.
Exclusive optimization for concrete mixer hydraulic systems.
| Attribute | Value |
|---|---|
| Model Number | A4VG90EP3DM1/32L-NSD10F07 |
| Displacement | 90 ml/r |
| Rotation Direction | Levorotation |
| Work Mode | Closed circuit |
| Rated Speed |
3
000 rpm |
| Maximum Speed | 3300 rpm |
| Maximum Pressure | 445 bar |
| Cut-Off Pressure | 350 bar (adjustable) |
| Housing Pressure | Max 2 bar / Peak 5 bar |
| Oil Suction Pressure | 0.8–5 bar |
| Replenishment Pressure | 25 bar |
| Auxiliary Pump Output | 18 ml/r |
| Control Mode | EP3 electric proportional, DC 12V |
| Filtration Precision | 10 μm |
The pump is manufactured using CNC precision machining, heat treatment, and anti-rust coating. Each unit undergoes strict flow, pressure, and durability testing to ensure consistent quality and compliance with international hydraulic standards.
Fill pump casing with clean hydraulic oil through exhaust port before operation.
Maintain oil cleanliness at NAS level 9.
Prevent strong impacts on the transmission shaft during transport.
Ensure correct installation without contamination or burrs.
The A4VG90EP3 pump comes with a 1-year warranty covering manufacturing defects. Technical support, spare parts, and maintenance guidance are provided to ensure reliable operation and long service life.
Q1: Can this pump be used for excavators or tractors?
A1: No. It is designed only for concrete mixer trucks.
Q2: What is the maximum speed of the pump?
A2: The pump supports up to 3300 rpm.
Q3: How to extend service life?
A3: Use original spare parts, maintain oil quality, and replace filters regularly.
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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