LD-PVE19-A2R-SE2S-20-C21 Variable Piston Pump | Construction & Marine Hydraulic Replacement Pump

LD-PVE19-A2R-SE2S-20-C21 Variable Piston Pump | Construction & Marine Hydraulic Replacement Pump

1. Product Overview

HYDSUNRIDA is a professional hydraulic pump manufacturer with 10+ years of experience, focusing on R&D, precision production, domestic substitution and global export of heavy-duty hydraulic components.

LD-PVE19-A2R-SE2S-20-C21 is an upgraded heavy-duty variable piston pump of the LD series. It features stable medium flow, excellent impact resistance and long service life, serving as an ideal 1:1 plug-and-play replacement for construction, sanitation, marine and agricultural machinery.

Equipped with a specialized upgraded through-shaft structure, this pump supports multi-pump series combination installation. It solves common defects of conventional pumps, such as insufficient heavy-load power, unstable pressure, start-stop jitter and oil leakage. Manufactured per GB/T3766-2015 standards and certified by ISO9001:2015 and SGS, every unit undergoes strict full-performance factory testing for stable quality and low failure rate.

Adopting universal standard mounting dimensions, it supports direct in-situ replacement with no equipment modification or pipeline adjustment required. We provide factory direct supply, sufficient in-stock delivery and professional OEM/ODM customization for harsh working conditions, trusted by global industrial customers.

2. Basic Technical Parameters

Standard General Model: LD-PVE19-A1R-SE1S-20-CG

Heavy-duty Hot Model: LD-PVE19-A2R-SE2S-20-C21

Nominal Displacement: 41 ml/r

Rated Working Pressure: 210 bar

Peak Shock Pressure: 240 bar

Structure: LD upgraded reinforced through-shaft cast steel housing, high rigidity and anti-deformation

Design Features: Optimized low-pulsation silent oil circuit lowers vibration and noise; supports multi-pump series assembly for combined hydraulic systems

Control Type: Pressure compensation + load-sensing adaptive dual control, auto-matches pressure and flow to real-time load for energy-saving stable output

Applicable System: Standard open hydraulic circuit, suitable for mobile machinery and heavy-duty industrial hydraulic stations

Working Adaptability: Compatible with conventional and flame-retardant hydraulic oil, stable in high/low temperature, dusty, humid and 24-hour continuous operation scenarios

Factory Test Standard: Full-load simulated condition testing to eliminate leakage, pressure relief, abnormal noise and overheating

This pump delivers constant pressure and steady flow under continuous full-load operation. It effectively resists instantaneous impact and frequent load switching, ensuring reliable and consistent power output for medium and heavy-duty equipment.

3. Full Series Models (LD Upgraded Version)

All LD-PVE19 series pumps adopt unified installation dimensions, oil ports and shaft specifications for direct on-site replacement without modification or commissioning. The LD upgraded version optimizes wear-resistant core assemblies, high-pressure anti-corrosion seals and anti-fatigue oil circuits, offering better high-temperature resistance, leakage resistance and impact durability than ordinary models. All models are in stock for emergency replacement, new machine matching and hydraulic system upgrading.

General Models

• LD-PVE19-A1R-SE1S-20-CG (General Standard Model)

• LD-PVE19-A1R-SE1S-10-CM

• LD-PVE19-A1L-SE1S-20-CG

• LD-PVE19-A1L-SE1S-10-CM

• LD-PVE19-A2R-SE2S-20-C21 (Heavy-duty Hot Model)

• LD-PVE19-A1R-SE3S-20-C21

• LD-PVE19-A1R-SE3S-10-C14

• LD-PVE19-A1L-SE3S-20-C21

• LD-PVE19-A1L-SE3S-10-C14

We support non-standard customization of pressure, flow rate and sealing materials for marine anti-corrosion, extreme temperature and special medium working conditions, as well as complete hydraulic system OEM & ODM turnkey services.

4. Core Advantages

• Factory Direct Supply & Traceable Quality: 10+ years of professional hydraulic pump manufacturing with independent precision processing, assembly and full-process testing. No outsourcing repackaging. Strict quality control ensures stable performance and complete quality traceability.

• Multi-pump Combinable & Wide Compatibility: Unique through-shaft structure supports multi-pump series assembly, covering industrial and mobile heavy-load working conditions, solving insufficient power of small-displacement hydraulic pumps.

• Alloy Reinforced Core & Extended Service Life: Key components adopt high-hardness wear-resistant alloy with precision grinding and hardening treatment, featuring excellent anti-wear, anti-impact and anti-fatigue performance to support 24/7 continuous operation and reduce maintenance costs.

• Upgraded Anti-leakage Sealing System: Heavy-duty composite high-pressure seals feature wide temperature adaptability, anti-aging and anti-corrosion properties, effectively preventing high-temperature leakage, low-temperature pressure loss and internal leakage under frequent heavy-load impact.

• 1:1 Plug-and-Play Replacement & High Cost Performance: Standard universal interfaces support direct in-situ replacement without equipment modification. Factory direct sales eliminate intermediate markup, with sufficient inventory for fast delivery and competitive pricing.

• Customization & Full After-sales Support: Supports exclusive parameter customization and complete hydraulic system matching. Provides professional pre-sales selection, installation guidance and lifelong technical consultation with reliable warranty.

5. Application Fields

LD-PVE19 series medium-flow variable piston pumps are designed for open-loop hydraulic systems, suitable for long-hour heavy-duty operation in dusty, humid and variable-temperature harsh scenarios.

• Construction Machinery: Skid steer loaders, road rollers, pavement maintenance equipment, truck cranes, aerial work platforms

• Sanitation Vehicles: Street sweepers, water sprinklers, garbage compression trucks, dedicated sanitation hydraulic units

• Port & Marine Equipment: Marine deck machinery, ship cranes, windlass hydraulic units, hatch cover hydraulic systems, port lifting equipment

• Agricultural Machinery: Large tractors, combine harvesters, heavy-duty agricultural hydraulic equipment

• Industrial Hydraulic Equipment: Injection molding auxiliary machines, extrusion machinery, rubber processing equipment, customized hydraulic stations, hydraulic test benches

6. Manufacturer Service Guarantee

HYDSUNRIDA focuses on the R&D and export of high-performance LD series hydraulic pumps for domestic substitution. All LD-PVE19 pumps feature stable flow, reliable pressure output, low noise and excellent durability for diverse harsh working environments.

We support single-unit orders, bulk project matching and full OEM/ODM customization, providing cost-effective and reliable hydraulic replacement solutions for global construction, sanitation, marine and agricultural machinery customers.