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 $45\text{ cc}$ 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 ($4060\text{ PSI}$) and intermittent peak pressures up to 350 bar ($5100\text{ PSI}$), securing steady, uninterrupted volumetric efficiency.
-
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.
-
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.
-
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 |
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.
