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Anthony Chen(Sales director)
Email:
sales01@hydsunrida.com
Mobile No.:+86-15889395318
Wechat:15889395318
Add:No.7, Zhongxin Village, Luozu Community,Shiyan Street, Bao’an District, Shenzhen City of PRC.
Piston pump
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LD-A11VO75 Axial Piston Variable Pump
LD-A11VO75 Axial Piston Variable Pump
A11VO75 Hydraulic Piston Pump | 75cc OEM Replacement Pump | HYDSUNRIDA
Description: HYDSUNRIDA LD-A11VO75 swash plate axial piston pump, 75cc displacement, 350bar rated pressure. 1:1 drop-in replacement for construction machinery open circuit systems. ISO9001:2015 & SGS certified, factory direct supply, ready stock, fast lead time & full after-sales support.
Product Overview
HYDSUNRIDA is a professional hydraulic component manufacturer with over 10 years of R&D and production experience. LD-A11VO75 is a fully interchangeable aftermarket pump engineered to replace the original A11VO75 unit. Adopting swash plate variable displacement design, this pump is specially built for open-circuit hydraulic systems of medium-duty mobile machinery. All mounting flanges, spline shafts, port layouts and performance curves match the original pump perfectly, requiring zero mechanical modification during replacement to cut maintenance downtime and costs.
Core Technical Specifications
| Item | Standard Parameter |
|---|---|
| Base Model | LD-A11VO75 |
| Max Theoretical Displacement | 75 cm³/rev |
| Rated Continuous Pressure | 350 bar |
| Instant Peak Pressure | 400 bar |
| Applicable Hydraulic Circuit | Open Circuit |
| Max Allowable Rated Speed | 2400 rpm |
| Drive Structure | 100% full through-drive, supports series installation of auxiliary gear pumps or secondary piston pumps |
| Standard Control Versions | DR Constant Pressure, DRS Constant Pressure with Stroke Limiter, DRG Constant Pressure with Pressure Cut-off, LRDS Load Sensing Constant Power, LRDU2 Power Cut-off Load Sensing, LRDH Power Controller with Stroke Limiter, HD Pilot Pressure Control, EP Electro-Proportional Control |
Core Product Advantages
1:1 Drop-in Full InterchangeabilityIdentical installation dimensions, spline and oil port layout as the original A11VO75 pump. Direct plug-and-play installation without any mechanical alteration, greatly reducing equipment downtime and spare part procurement expenses.
Heavy-Duty Wear-Resistant StructureForged high-strength alloy cylinder block, ultra-precision machined piston slipper pairs, reinforced heavy-load bearings and high-performance wear-resistant sealing kits. Stable long-term operation under continuous high-pressure heavy loads, featuring low internal leakage and extended service lifespan.
Strict Global Standard Quality ControlAll pumps are manufactured in strict accordance with ISO9001:2015 quality management system and fully pass SGS certification. Every finished pump undergoes independent pressure resistance testing, full flow calibration and long-cycle durability inspection before delivery to guarantee consistent, stable and reliable performance.
Modular Multiple Control Options for Wide ApplicationsDiversified modular control configurations cover full flow, pressure and power regulation demands of medium construction machinery, perfectly matching small concrete pumps, underground mining loaders, roadheaders, wet shotcrete machines and compact road rollers.
Factory Competitive Strengths
Direct Source Manufacturer: Independent in-house R&D, production and professional testing workshops, no intermediate distributors to add markup
Adequate Ready Stock & Ultra-Short Lead Time: Mass inventory of all standard control models enables fast global shipment
Highly Competitive Factory Pricing: Manufacturer produces and sells products directly with favorable bulk order discounts
Comprehensive Global After-Sales Support: 12-month worldwide warranty and one-stop professional technical consultation & troubleshooting service
Typical Application Scenarios
Small concrete pump trucks, underground mining loaders, roadheaders, wet shotcrete machines, compact road rollers and all medium mobile construction machinery equipped with open-circuit hydraulic systems.
Popular Complete Full Model Numbers Widely Adopted in Global Markets
DR Constant Pressure Control
LD-A11VO75DR/10R-NZD12N00 LD-A11VO75DR/10R-VZD12N00 LD-A11VO75DR/10R-NZC12K07
DRS Constant Pressure + Stroke Limiter
LD-A11VO75DRS/10R-NSD12N00 LD-A11VO75DRS/10R-NPD12N00-S LD-A11VO75DRS/10R-NZD12N00
DRG Constant Pressure + Pressure Cut-off
LD-A11VO75DRG/10R-NZD12K04 LD-A11VO75DRG/10L-NZD12K04
LRDS Load Sensing Constant Power
LD-A11VO75LRDS/10R-NZD12N00 LD-A11VO75LRDS/10R-VZD12N00 LD-A11VO75LRDS/10R-NZD12K02 LD-A11VO75LRDS/10R-NSD12K01-S
LRDU2 Power Cut-off Load Sensing
LD-A11VO75LRDU2/10R-NZD12K03 LD-A11VO75LRDU2/10R-VZD12K03 LD-A11VO75LRDU2/10R-NZD12K02P-S
LRDH Power Controller with Stroke Limiter
LD-A11VO75LRDH1/10R-NZD12K02 LD-A11VO75LRDH2/10R-NZD12K02
HD Pilot Pressure Control
LD-A11VO75HD1/10R-NZD12N00 LD-A11VO75HD2/10R-VZD12N00 LD-A11VO75HD1D/10R-NPD12N00
EP Electro-Proportional Control
LD-A11VO75EP2/10R-NPD12N00 LD-A11VO75EP2D/10R-NSD12K02H LD-A11VO75EP2G/10R-NPD12K07P
