Product Introduction
ATUS 90 Series Variable Displacement Axial Piston Pump is specially engineered for closed hydrostatic circuits. It adopts swashplate axial piston structure with built-in integrated charge pump, infinitely adjustable displacement and reversible oil flow direction to realize forward & reverse drive. Compact high power density design, multiple displacement sizes and diverse control versions available, direct replacement for mobile heavy-duty machinery.
Technical Specifications:
Size NG: 42 / 50 / 75 / 100 / 130 / 180 / 250
Displacement(cm³): 42 / 50 / 75 / 100 / 130 / 180 / 250
Speed(rpm): 4200 / 3900 / 3600 / 3300 / 3100 / 2600 /2300
Flow (L/min) : 176 / 215 / 270 / 330 / 403 / 468 / 575
N.W.(KG): 34 / 40 / 49 / 68 / 88 / 136 / 154
Rated Pressure: 420 bar
Reak Pressure: 480 bar
Application Field: Used in closed hydraulic systems of agricultural machinery and construction machinery, such as: rotary tillers, corn harvesters, mixer trucks, concrete pump trucks, etc.
Features
Swashplate variable axial piston design, dedicated for closed circuit system
Built-in integrated charge pump for oil replenishment, cooling and control pressure supply
Infinitely variable displacement from zero to max, reversible flow direction
Multiple control selections: manual, hydraulic and electronic proportional control
High continuous working pressure, excellent volumetric & mechanical efficiency
Rear auxiliary mounting flange optional for tandem pump assembly
Bidirectional rotation supported, wide speed adjustment range
Rugged bearing and piston assembly for heavy-load cyclic operation
Optional loop flushing valve for oil cooling and purification
Strict pressure, leakage and performance test before delivery
Advantages
High power density, small footprint and light weight for limited installation space
Low heat generation and high efficiency to reduce fuel consumption
Stable output under frequent forward-reverse switching
Modular configuration, flexible to match different drive requirements
Standard SAE mounting interface for easy drop-in replacement
Good contamination resistance, adapt to severe construction & farm site
Multiple displacement options cover different flow & torque demands
Compatible with 90 series hydraulic motors to form complete hydrostatic transmission
Wear-resistant internal components for long service life
Fast delivery for regular displacement models, competitive cost
Mounting Method
Standard SAE flange mounting; available with straight key shaft or spline shaft.
Rear end allows auxiliary pump tandem installation.
Horizontal and vertical installation are both acceptable, oil port orientation configurable.
Application Range
Concrete mixer drum drive, skid steer loader, combine harvester, road roller, forestry machinery, paver, mobile drilling rig and other closed-circuit hydrostatic transmission equipment.
Notes & Service
Please confirm displacement, control type, shaft form, rotation direction and seal material before ordering.
ATUS 90 series piston pumps support modular assembly and field maintenance.
We provide professional technical support and reliable after-sales service.
FAQ
Q1: How to verify more realistically that ATUS is a factory?
A1: 1)Welcome to visite ATUS workshop by online video Live.
2)Field visite to ATUS manufacturing workshop
Q2: What is the MOQ ?
A2: MOQ 1 PCS
Q3: Can I mark my own brand on the pump?
A3: Sure. Full order Can mark your brand and code
Q4: How long is your delivery time ?
A4: 1).ATUS warehouse stock 2-3 days. No stock 7-15 days
2).ATUS custom production 7-10 days.
3).Mass production: determined according to the quantity
Q5: What payment method is accepted ?
A5: TT,LC,Western union,Trade assurance,VISA
Q6: How to Place your order ?
A6: 1).Tell us Model number ,quantity and other special requirements.
2).Proforma Invoice will be made and send for your approval.
3).Productions will be arranged upon receipt of your approval and payment or deposit.
4).Goods will be delivered as stated on the proforma invoice.
Q7: What kind of inspection you can provide ?
A7: 1).ISO9000 quality system certification.
2).ATUS is tested from material procurement to finished product by different departments such as QA, QC, and sales representatives to ensure that all pumps are in perfect condition prior to shipment. We also accept inspection by a third party you specify.
