LD-PD100-PA02-SL-S5 Variable Piston Pump | Industrial Heavy-duty Hydraulic Replacement Pump

LD-PD100-PA02-SL-S5 Variable Piston Pump | Industrial Heavy-duty Hydraulic Replacement Pump

1. Product Overview

HYDSUNRIDA is a professional hydraulic pump manufacturer with over 10 years of experience, focusing on R&D, precision production, domestic substitution and global export of high-flow and high-pressure heavy-duty hydraulic components.LD-PD100-PA02-SL-S5 is an upgraded heavy-duty variable piston pump of the LD series. Featuring large flow output, stable high pressure, strong shock resistance, low noise and energy-saving performance, it perfectly adapts to heavy industrial hydraulic systems, large construction machinery, port and marine equipment. It ranks as the most recognized and widely used direct replacement piston pump for heavy-duty hydraulic fields.Adopting an optimized open-circuit axial piston structure, this pump effectively solves common defects of conventional high-flow pumps, including insufficient pressure, large flow pulsation, high-temperature internal leakage, heavy-load jitter and short service life. Manufactured in strict accordance with GB/T3766-2015 hydraulic standards and certified by ISO9001:2015 and SGS, every unit undergoes four strict offline tests to ensure stable performance and ultra-low failure rate.Built with high-strength alloy core components and universal standard mounting dimensions, the pump supports 1:1 plug-and-play direct replacement without equipment modification or pipeline reworking. We provide factory direct supply, sufficient in-stock support and professional OEM & ODM customization for extreme working conditions, trusted by global industrial customers.

2. Basic Technical Parameters

Main Complete Model: LD-PD100-PA02-SL-S5

Nominal Displacement:100 ml/rRated Working Pressure: 280 bar

Peak Shock Pressure: 320 bar

Structure: LD exclusive heavy-duty reinforced cast steel housing with high rigidity and anti-fatigue performance

Design Features: Optimized low-pulsation silent oil circuit reduces fluid vibration and running noise, realizing stable low-noise operation under large-flow heavy-load conditions

Control Type: Pressure limiting + load-sensing adaptive dual control, automatically matching pressure and flow according to real-time load for energy-saving and stable output

Applicable System: Standard industrial open hydraulic circuit, suitable for heavy-duty hydraulic stations, engineering machinery, port marine equipment and mobile hydraulic power units

Applicable Medium: Conventional industrial hydraulic oil and flame-retardant hydraulic medium, adaptable to high-low temperature, humid, dusty and 24-hour continuous heavy-load working scenarios

Factory Inspection Standard: Full-load simulated condition testing before delivery, eliminating oil leakage, pressure relief, abnormal noise and overheating faults fundamentallyWith super-large displacement and sufficient power reserve, the pump maintains constant pressure without drift or flow attenuation during long-term full-load operation. It delivers stable and efficient output under frequent start-stop and sudden load changes, meeting high-intensity continuous operation demands of heavy-duty equipment.

3. Full Series Models (LD Upgraded Version)

All LD-PD100 series pumps adopt unified standard installation dimensions, oil ports and shaft specifications for direct on-site replacement without modification or commissioning. The upgraded LD version strengthens wear-resistant core assemblies, high-pressure anti-corrosion seals and low-pulsation anti-fatigue oil circuits, achieving better high-pressure stability, high-temperature leakage resistance and impact durability than ordinary models. All models are in stock for equipment emergency replacement, new machine matching and heavy hydraulic system upgrading.

General Models

• LD-PD100-PA02-SL-S5 (Best-selling Main Model)

• LD-PD100-PA01-SL-S5

• LD-PD100-PA02-SL-S3

• LD-PD100-PA01-SL-S3

• LD-PD100-PB02-SL-S5

• LD-PD100-PB01-SL-S5

• LD-PD100-PB02-SL-S3

• LD-PD100-PB01-SL-S3

We support non-standard customization of pressure, flow rate and sealing materials for high-temperature, anti-corrosion 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 large-displacement piston pump manufacturing with independent precision processing, assembly and full-process testing. No outsourcing repackaging. Mature craftsmanship and strict quality control ensure stable performance and full quality traceability.

• High-pressure & Large-flow Heavy-duty Performance: Super-large displacement and steady high-pressure output provide sufficient power reserve, solving insufficient flow and weak power of ordinary pumps under heavy loads. It fully covers high-load working conditions of industry, engineering, port and marine equipment.

• Alloy Reinforced Core & Extended Service Life: Key components including cylinder block, pistons, valve plate and main shaft are forged from high-hardness wear-resistant alloy with hardening and mirror grinding treatment. Featuring high precision, anti-deformation and anti-fatigue performance, it supports 24/7 continuous heavy-load operation and greatly reduces maintenance costs.

• Upgraded Anti-leakage Sealing System: Equipped with thickened composite high-pressure seals with wide temperature adaptability, anti-aging and anti-corrosion properties. It effectively avoids high-temperature oil leakage, low-temperature pressure loss and excessive internal leakage after long-term heavy-load operation.

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

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

5. Application Fields

LD-PD100 series high-flow variable piston pumps are designed for heavy-duty open-circuit hydraulic systems, suitable for long-hour high-intensity operation in complex and harsh working scenarios.

• Heavy Industrial Equipment: Injection molding machines, extrusion equipment, rubber vulcanizing machines, heavy hydraulic presses, customized heavy-duty hydraulic stations

• Construction Machinery: Large loaders, road rollers, pavement maintenance equipment, cranes, aerial work platforms

• Port & Marine Equipment: Port hoisting machinery, marine deck equipment, hatch hydraulic systems, shipboard heavy-duty hydraulic units

• Mining & Metallurgical Equipment: Mine auxiliary hydraulic systems, metallurgical auxiliary machinery, high-pressure hydraulic test benches

• Agricultural Machinery: Large combine harvesters, heavy farming hydraulic equipment, agricultural lifting machinery

6. Manufacturer Service Guarantee

HYDSUNRIDA focuses on the R&D and export of high-performance LD series hydraulic pumps for domestic substitution. All LD-PD100 pumps feature large flow output, stable high pressure, low noise and excellent durability, adapting to various harsh industrial and outdoor 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 heavy-duty machinery customers.