Product Description
Premium factory-direct HZ-PD045 (including HZ-P1045) Axial Piston Variable Displacement Pump, precision-manufactured as a 100% plug-and-play interchangeable drop-in replacement for OEM Parker Hannifin PD045 and P1045 series. Optimized specifically for compact mobile municipal vehicles, refuse trucks, forestry attachments, and compact industrial power stations, this 45 displacement pump delivers remarkable power-density and micro-second stroke response times. Engineered utilizing upgraded high-tensile nodular cast-iron housings and vacuum-sintered bimetallic cylinder groups, our HZ-PD045 series comfortably sustains continuous operating pressures up to 280 bar and intermittent peak pressures up to 350 bar , securing steady, uninterrupted volumetric efficiency.
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100% Seamless Parker OEM Matching: Engineered strictly to match original Parker model codes such as PD045PS01 (Pressure Limiter Control) and PD045PS02 (Load Sensing Control). Identical SAE mounting flanges, splined/keyed drive shafts, and threaded porting ensure a flawless drop-in replacement without line rerouting.
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Bimetallic Vacuum-Sintered Cylinder Block: Features premium bimetallic cylinder barrels where high-purity copper alloy is fused onto a forged steel base under dynamic vacuum conditions. This provides superior anti-wear pairs under continuous heavy loads and minimizes heat generation.
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Precisely Calibrated PS01 / PS02 Valve Blocks: Integrated compensators are pre-set and dynamic-tested on our automated flow rigs to match exact Parker factory response limits, guaranteeing zero control delay, pressure hunting, or engine power lugging.
| Haozheng Model Code | OEM Cross Reference | Control Valve & Key Specs (45 cm³/rev) |
|---|---|---|
| HZ-PD045PS01SRS5ARM0S1000000 | Parker PD045PS01 Series | • Control Type: PS01 Proportional Pressure Limiter • Shaft & Mount: Splined / Standard SAE Flange • Cleanliness Rating: ISO 20/18/14 |
| HZ-PD045PS02SRS5BC00S0000000 | Parker PD045PS02 Series | • Control Type: PS02 Load Sensing (Flow & Pressure Comp.) • Shaft & Mount: Splined / Standard SAE Flange • Cleanliness Rating: ISO 20/18/14 |
| HZ-P1045 | Parker P1045 Series | • Application: High-Duty Mobile Applications • Rotation: Standard Right-Hand (CW) • Cleanliness Rating: ISO 20/18/14 |
PD Series Variable Displacement Piston Pump
Model: PD45 / PD60 / PD75 / PD100 / PD140
Medium-pressure open circuit axial piston pumps, compatible with multiple controllers (constant pressure, load sensing, electro-proportional control). Stable performance, low noise, widely used in industrial hydraulics & special mobile machinery.
Model-by-Model Application & Target Machinery
PD45 (45cc Displacement, Small Size)
- Small hydraulic power units, machine tool clamping systems
- Aerial work platforms, compact road sweepers
- Light agricultural machinery, small wood processing equipment
- Mini hydraulic test benches, auxiliary injection molding equipment
PD60 (60cc Displacement, Small-medium Size)
- Medium hydraulic stations, bending machines & small shearing machines
- Horizontal directional drilling rigs, compact geological exploration drills
- Waste compactors, scrap balers
- Light forest grapples, forage harvesting machinery
PD75 (75cc Displacement, Medium Size)
- Medium extrusion & plastic molding equipment
- Road maintenance machinery, small cold milling machines
- Light port handling equipment, hydraulic attachments for forklifts
- Hydraulic test benches, automated production line hydraulic systems
PD100 (100cc Displacement, Medium-large Size)
- Medium injection molding machines, hydraulic forging equipment
- Concrete conveying machinery, hydraulic systems for mini mixing plants
- Small tunnel auxiliary excavation equipment, light mining drills
- Large waste crushers, solid waste treatment equipment
PD140 (140cc Displacement, Large Size)
- Large hydraulic power stations, waterjet cutting equipment
- Offshore light lifting equipment, oil & gas pipeline processing machinery
- Heavy-duty balers, large metallurgical clamping devices
- Heavy-duty hydraulic test benches, supporting hydraulic units for construction machinery
General Industry Summary
1. Industrial Hydraulics
2. Special Mobile Construction Machinery
3. Environmental & Resource Equipment
4. Other Applications
Product Description
PD series variable displacement axial piston pumps (PD45, PD60, PD75, PD100, PD140) are medium-pressure pumps designed for open hydraulic circuits.
They are extensively equipped on hydraulic stations, metalworking machine tools, press equipment, hydraulic test benches, drilling rigs, road machinery, sanitation vehicles, forestry machines and waste recycling equipment.
Optional control types include constant pressure control, load sensing control and electro-proportional control.
Haozheng Hydraulic Production Processing Diagram
Haozheng Hydraulic Honorary Certificate
Exhibition
FAQ
Q1: Refuse trucks and sweeping vehicles operate with high-frequency stop-and-go cycles, putting severe pressure shocks on the swashplate. Can your HZ-PD045 withstand this without casing failure? A: Yes, absolutely. High-frequency stop-and-go operations create immense dynamic fatigue on standard cast housings. Our HZ-PD045 casing is cast from high-strength nodular ductile iron, which undergoes strict stress-relieving heat treatments to prevent structural micro-flexing. Paired with heavy-duty saddle bearings, our swashplate assembly maintains absolute alignment under constant pressure spikes, eliminating casing cracking and securing a long service life.
Q2: Will the HZ-PD045 pump plug directly into our machine’s existing hydraulic line without causing flow drops or oil temperature spikes? A: 100% Yes. Flow drops and oil heating are caused by loose internal dynamic clearances. At Guangdong Haozheng, all internal rotary groups (pistons, cylinder block, and valve plate) are matched and micro-lapped to hold tolerances under 0.003 mm. This micro-metric seal prevents internal bypass oil shearing, ensuring your operating temperature stays cool and flow rates match original Parker blueprint limits perfectly.
