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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-A11VO190 Axial Piston Variable Pump
LD-A11VO190 Axial Piston Variable Pump
A11VO190 Hydraulic Piston Pump | 190cc OEM Replacement Pump | HYDSUNRIDA
Description: HYDSUNRIDA LD-A11VO190 swash plate axial piston pump, max 190cc displacement, 350bar continuous pressure. 1:1 drop-in replacement for ultra-heavy construction machinery open hydraulic circuits. ISO9001:2015 & SGS certified, factory direct supply, ready stock, fast global lead time and full worldwide after-sales service.
Product Overview
HYDSUNRIDA is a professional hydraulic component manufacturer with over 10 years of R&D and mass production experience. LD-A11VO190 is a fully interchangeable aftermarket pump engineered to replace original A11VO190 units. Built on a swash plate variable displacement design, this pump is tailor-made for open-circuit hydraulic systems on ultra-heavy mobile machinery. All mounting flanges, spline shafts, port layouts and performance curves match the original pump completely. No mechanical modification is required during replacement, cutting equipment downtime and spare part procurement costs effectively.
Core Technical Specifications
| Item | Standard Parameter |
|---|---|
| Base Model | LD-A11VO190 |
| Max Theoretical Displacement | 190 cm³/rev |
| Rated Continuous Pressure | 350 bar |
| Instant Peak Pressure | 400 bar |
| Applicable Hydraulic Circuit | Open Circuit |
| Max Rated Full-Displacement Speed | 2100 rpm |
| Max Short-Time Allowable Speed | 2400 rpm |
| Max Theoretical Output Flow | 399 L/min |
| Max Output Power @350bar | 233 kW |
| Net Weight | 82 kg |
| Drive Design | Full through-drive, supports series installation of auxiliary gear pumps or secondary piston pumps |
| Available Control Types | 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 Plug-and-Play Full InterchangeabilityIdentical installation dimensions, spline specifications and oil port layout as genuine A11VO190 pumps. Direct installation without mechanical alterations, minimizing equipment downtime and maintenance expenses.
Ultra Heavy-Duty Wear-Resistant ConstructionForged high-strength alloy cylinder block, ultra-precision machined piston slipper pairs, oversized reinforced heavy-load bearings and premium wear-resistant sealing kits. It delivers stable continuous operation under long-term high-pressure heavy loads, with low internal leakage and greatly extended service life.
Strict Global-Standard Quality InspectionAll pumps are manufactured in strict compliance with the 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 testing before shipment to guarantee stable, consistent and reliable performance.
Modular Multi-Control Solutions for Ultra-Heavy EquipmentDiversified modular control configurations cover all flow, pressure and power regulation demands of ultra-heavy construction machinery. Ideal for large concrete pump trucks, underground mining loaders, tunnel roadheaders, large wet shotcrete machines and heavy-duty road rollers.
Factory Competitive Strengths
Direct Source Manufacturer: Independent in-house R&D, production and professional testing workshops with no markup from intermediate distributors
Adequate Ready Stock & Short Lead Time: Mass inventory of all standard control versions enables fast global sea and air shipping
Highly Competitive Factory Pricing: Manufacturer produces and sells products directly
Comprehensive Global After-Sales Support: 12-month worldwide warranty plus one-stop professional technical consultation and troubleshooting service
Typical Application Scenarios
Large concrete pump trucks, underground mining loaders, tunnel roadheaders, large wet shotcrete machines, heavy road rollers and all ultra-heavy mobile construction machinery equipped with open-circuit hydraulic systems.
Popular Complete Full Model Numbers Widely Used in Global Markets
DR Constant Pressure Control
LD-A11VO190DR/11R-NZG12N00 LD-A11VO190DR/11R-NSD12N00 LD-A11VO190DR/11L-NZD12K07 LD-A11VO190DR/11R-NZG12K01-S
DRS Constant Pressure + Stroke Limiter
LD-A11VO190DRS/11L-NSD12N00 LD-A11VO190DRS/11L-NSD12K17 LD-A11VO190DRS/11R-NSD12K04
DRG Constant Pressure + Pressure Cut-off
LD-A11VO190DRG/11R-NZD12K04 LD-A11VO190DRG/11L-NZD12K04
LRDS Load Sensing Constant Power
LD-A11VO190LRDS/11R-NZD12N00 LD-A11VO190LRDS/11R-NSD12K02 LD-A11VO190LRDS/11R-NZG12K07 LD-A11VO190LRDS/11R-NSD12K17-S
LRDU2 Power Cut-off Load Sensing
LD-A11VO190LRDU2/11R-NZD12K03 LD-A11VO190LRDU2/11R-VZD12K03 LD-A11VO190LRDU2/11R-NZD12K02P-S
LRDH Power Controller with Stroke Limiter
LD-A11VO190LRDH1/11R-NZD12K01 LD-A11VO190LRDH2/11R-NZD12K02 LD-A11VO190LRDH2/11L-NZD12K02
HD Pilot Pressure Control
LD-A11VO190HD1/11R-NZD12N00 LD-A11VO190HD2/11R-VZD12N00 LD-A11VO190HD1D/11R-NPD12N00
EP Electro-Proportional Control
LD-A11VO190EP2/11R-NPD12N00 LD-A11VO190EP2D/11R-NZD12K07P LD-A11VO190EP6D/11L-NSD12K04P-S
LD-A11VO190 axial piston variable hydraulic pump, 190cc displacement, ISO9001 & SGS certified 1:1 interchangeable ultra-heavy construction machinery pump, HYDSUNRIDA factory direct ready stock
