LD-PVP33 Variable Piston Pump | 33ml/r 250bar Medium-High Pressure Hydraulic Pump 1:1 OEM Replacement

LD-PVP33 Variable Piston Pump | 33ml/r 250bar Medium-High Pressure Hydraulic Pump 1:1 OEM Replacement

1. Product Overview

HYDSUNRIDA is a professional hydraulic piston pump manufacturer with over 10 years of industry experience, focusing on R&D, mass production and equipment localization replacement for medium-high pressure hydraulic systems. All pumps are manufactured under strict ISO9001:2015 quality management systems and SGS certification, complying with GB/T3766 industry standards to deliver consistent industrial-grade stability and reliability.The LD-PVP33 variable displacement piston pump is a mainstream medium-displacement swashplate axial piston pump for open-circuit hydraulic systems. Featuring optimized variable structure, constant pressure output, uniform flow delivery, low noise and energy-saving operation, it perfectly adapts to intermittent heavy-load and frequent start-stop working conditions of medium-sized hydraulic equipment.As an upgraded domestic modified version, the LD-PVP33 pump fully adopts universal industry standards for mounting flange, oil port layout, shaft extension and control parameters, supporting 1:1 non-destructive OEM replacement. No pipeline modification, base replacement or system debugging is required for old equipment renovation. With factory direct supply, sufficient stock, fast delivery and comprehensive after-sales service, it effectively solves the pain points of high price, long lead time and delayed maintenance of imported pumps, serving as the optimal solution for equipment replacement and hydraulic system upgrading.

2. Core Technical Parameters & Control Features

Best-selling Standard Model: LD-PVP3336R2H212

3. Full Series Model List (All with LD Upgrade Suffix)

The upgraded LD-PVP33 series features optimized precision machining and multi-layer composite sealing structures, delivering superior pressure resistance, operational stability and extended service life compared with standard versions. All models retain fully universal mounting dimensions for direct non-destructive replacement, with adequate in-stock supply, bulk delivery capacity and professional non-standard customization support.

Flow & Pressure Sensing Series

• LD-PVP3336R2H212

• LD-PVP3336L2H212

• LD-PVP3330R26A4A21

• LD-PVP3330L26A4A21

Constant Power Torque Limiting Series

• LD-PVP3320B3R6B321

• LD-PVP3320B3L6B321

• LD-PVP33303R26A4A21

Standard Pressure Compensation Series

• LD-PVP3310R212

• LD-PVP3310L212

• LD-PVP3336R211

• LD-PVP3336L211

General Basic Control Series

• LD-PVP3301R2H212

• LD-PVP3301L2H212

Custom services including parameter fine-tuning, OEM branding and ODM non-standard solution customization are available to meet diverse complex working condition requirements.

4. Core Product Advantages

Premium Alloy Construction, Low Failure Rate & High DurabilityCore components including pistons, cylinder blocks, valve plates and main bearings are precision-manufactured from high-wear alloy materials, treated with quenching hardening and ultra-precision mirror grinding processes. The reinforced thickened housing greatly enhances overall structural rigidity, providing outstanding wear resistance, fatigue resistance and deformation resistance. The pump maintains stable output during long-term continuous high-pressure operation, effectively reducing equipment failure rates and extending the service life of the entire hydraulic system.Precise Variable Regulation, Energy Saving & Low NoiseEquipped with a dedicated heavy-duty variable structure tailored for 33ml/r displacement, the LD-PVP33 pump achieves stepless and precise pressure and flow adjustment. It ensures smooth equipment start-stop and oil circuit commutation without hydraulic impact. Featuring high volumetric efficiency and ultra-low internal leakage, it effectively reduces temperature rise and energy consumption. Low-noise operation perfectly meets the long-term stable working requirements of precision industrial hydraulic equipment.Full Universal Compatibility, 1:1 Non-destructive OEM ReplacementFully compliant with universal industrial standards for mounting flanges, oil ports, shaft extensions and control interfaces. As an upgraded LD version, it optimizes sealing performance and wear resistance for stronger condition adaptability. Direct plug-and-play installation requires no pipeline modification, base replacement or system recalibration, significantly cutting equipment maintenance costs and shortening downtime.Certified Factory Manufacturing & Strict Full TestingAs a professional source manufacturer with complete production and independent testing lines, we implement full-process quality control. All LD-PVP33 series pumps are manufactured in accordance with ISO9001:2015 quality systems, SGS certification and GB/T3766 industry standards. Every finished unit undergoes high-pressure resistance, sealing leakage, full-load endurance and precise flow-pressure calibration tests, ensuring fully traceable and reliable industrial-grade quality.Flexible OEM/ODM Customization for Complex ConditionsWe support personalized hydraulic solution customization, including pump rotation direction, pressure & flow parameters, variable control modes and special shaft specifications. Custom hydraulic power units are available to adapt to normal, high-low temperature, high-dust and intermittent heavy-load complex working scenarios.Full Lifecycle Professional After-Sales SupportWe provide one-stop full-cycle services covering pre-sales accurate model selection, in-sales parameter confirmation, after-sales installation guidance and professional fault troubleshooting. One-on-one engineer technical support and 12-month full-machine warranty ensure worry-free procurement and long-term stable operation.

5. Application Fields

Designed for medium-high pressure open-circuit hydraulic systems, LD-PVP33 variable piston pumps adapt to frequent start-stop, intermittent heavy-load and complex temperature & dust environments. Widely applied in machine tool processing, plastic molding, medium construction machinery and automated hydraulic station industries, it is the ideal replacement and supporting solution for medium-sized industrial hydraulic equipment:

• Machine Tool Equipment: CNC machining centers, bending machines, shearing machines, hydraulic presses and stamping equipment

• Plastic Machinery: Medium injection molding machines, blow molding machines and rubber vulcanizing equipment

• Construction Machinery: Aerial work platforms, road maintenance equipment and skid steer loaders

• Automation & Hydraulic Station: Standard medium hydraulic stations, automated production line power units and hydraulic test benches

6. Brand Service Guarantee

HYDSUNRIDA is a reliable domestic hydraulic piston pump manufacturer integrating independent R&D, precision manufacturing, stock warehousing and full after-sales service. With mature craftsmanship, stable performance and strong universality, all LD-PVP33 series pumps support non-destructive replacement, bulk spot delivery and working condition customization. We deliver high-cost-performance, high-adaptability domestic hydraulic solutions for global industrial customers with stable quality, competitive pricing and efficient service system.

 In Stock LD-PVP33 33ml/r variable piston pump, 250bar medium-high pressure hydraulic pump for industrial machinery. ISO9001 & SGS certified, 1:1 OEM non-destructive replacement, factory competitive price & fast lead time.