Product Introduction
ATUS A11VO Series Swashplate Variable Displacement Axial Piston Pump is designed for open-circuit hydrostatic transmission, dedicated to heavy-duty mobile machinery. It adopts advanced swashplate piston rotary assembly, with infinitely adjustable displacement from maximum to zero. Rated pressure up to 350 bar and peak pressure 400 bar delivers outstanding high-pressure performance. It supports 100% through-drive for tandem pump combination, with multiple displacement sizes (40/60/75/95/130/145/190/260cc) and rich control options, as a direct interchange replacement for mainstream heavy hydraulic systems.
Technical Specifications:
Size NG: 40 / 60 / 75 / 95 / 130 / 145 / 190 / 260
Displacement(cm³): 42 / 58.5 / 74 / 93.5 / 130 / 145 / 193 / 260
Speed(rpm): 3000 / 2700 / 2550 / 2350 / 2100 / 2200 / 2100 / 1800
Flow (L/min) : 126 / 158 / 189 / 220 / 273 / 319 / 405 / 468
N.W.(KG): 74 / 92 / 110 / 128 / 159 / 186 / 236 / 273
Rated Pressure: 350 bar
Reak Pressure: 400 bar
Application Field: Used in hydraulic systems of mining machinery, engineering machinery, ships and other equipment
Features
Swashplate axial piston structure, specially for open hydraulic circuit
Stepless variable displacement, output flow adjustable from max to zero
Rated pressure 350 bar, peak pressure 400 bar for heavy load operation
Multiple control versions: DR pressure control, LR power control, LRD power cut-off, HD hydraulic control, EP electric proportional control
Full through-drive design, allows stacking gear pump or piston pump
Optional built-in impeller charge pump for easier cold start and high-speed operation
Bidirectional rotation available, SAE standard oil port layout
Reinforced bearing & valve plate assembly for long cyclic working life
Optional swivel angle sensor for electric signal feedback
Full factory pressure, leakage and efficiency testing before delivery
Advantages
High power density, compact layout for limited engine compartment space
Adjustable power limiter protects engine from overload damage
High volumetric & mechanical efficiency, lowers fuel consumption and heat buildup
Standard SAE mounting interface for fast drop-in replacement
Excellent contamination resistance, adapts to dusty construction & mining sites
Modular control configuration to match different control logics
Wide displacement range to cover various flow demand
Self-priming capability, optional charge pump for tough low-temperature startup
Wear-resistant internal friction pairs, extended service cycle
Stable stock of common sizes, competitive lead time for bulk orders
Mounting Method
Standard SAE flange mounting; shaft options include straight key shaft and spline shaft.
Rear through-drive interface supports tandem pump assembly.
Horizontal and vertical installation are both acceptable, suction and pressure ports can be rotated to match pipeline layout.
Application Range
Rotary drilling rig, concrete pump truck, large excavator, roadheader, mining machinery, mobile crane, asphalt paver and other heavy mobile hydraulic equipment.
Notes & Service
Please confirm displacement, control type, shaft form, rotation direction and seal material before ordering.
ATUS A11VO 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.
