Product Description
Premium factory-direct HZ-PD075 (including HZ-P1075) Axial Piston Variable Displacement Pump, precision-engineered as a 100% plug-and-play interchangeable drop-in replacement for OEM Parker Hannifin PD075 and P1075 series. Specifically optimized for heavy-duty mobile construction equipment, forestry harvesters, and high-cycle industrial power units, this $75\text{ cc}$ displacement pump delivers remarkable volumetric efficiency and lightning-fast stroke adjustment. Featuring an ultra-robust nodular iron casing and dynamic vacuum-sintered bimetallic cylinder groups, our HZ-PD075 series comfortably sustains continuous operating pressures up to 280 bar ($4060\text{ PSI}$) and intermittent peak pressures up to 350 bar ($5100\text{ PSI}$), ensuring smooth and uninterrupted fluid power.
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Seamless Parker OEM Compatibility: Engineered to match exact Parker model codes including PD075PS01 (Pressure Limiter Control) and PD075PS02 (Load Sensing Control). Identical SAE mounting flanges, splined drive shafts, and high-pressure ports guarantee direct bolt-on installation with zero field modification.
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Advanced Spherical Bimetal Interface: The cylinder block features vacuum-sintered bronze alloy bonded to a high-tensile steel core. This elite tribological pair offers superior resistance against friction wear and face scoring under fluctuating thermal conditions.
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Instantaneous Compensator Tuning: Integrated PS01/PS02 compensator valve blocks are pre-calibrated on our digital diagnostic lines, aligning perfectly with OEM response limits to eliminate pressure spikes, system oscillations, or diesel engine lugging.
| Haozheng Model Code | OEM Cross Reference | Control Valve & Key Specs (75 cm³/rev) |
|---|---|---|
| HZ-PD075PS01SRS5ARM0S1000000 | Parker PD075PS01 Series | • Control Type: PS01 Proportional Pressure Limiter • Shaft & Mount: Splined / Standard SAE Flange • Cleanliness Rating: ISO 20/18/14 |
| HZ-PD075PS02SRS5BC00S0000000 | Parker PD075PS02 Series | • Control Type: PS02 Load Sensing (Flow & Pressure Comp.) • Shaft & Mount: Splined / Standard SAE Flange • Cleanliness Rating: ISO 20/18/14 |
| HZ-P1075 | Parker P1075 Series | • Application: High-Pressure Mobile Mining/Forestry • Rotation: Standard Right-Hand (CW) • Cleanliness Rating: ISO 20/18/14 |
FAQ
Q1: For heavy forestry or material handling, we operate our machinery in sub-zero and extremely hot temperatures. Will the HZ-PD075 swashplate and bearings hold up without micro-cracking?
A: Absolutely. Severe climate fluctuations are a common cause of casing flexing and bearing seizure in low-cost pumps. Our HZ-PD075 pump housing is cast from high-density, stress-relieved ductile iron, paired with specialized polymer/copper-coated saddle bearings. This advanced material setup heavily dampens shock vibrations and resists thermal expansion misalignment, ensuring the swashplate maintains flawless angular travel from $-20^\circ\text{C}$ to over $90^\circ\text{C}$.
Q2: Does your HZ-PD075 pump handle the rapid load-sensing response times of Parker’s PS02 valve block without delay?
A: Yes, 100%. If a load-sensing pump has a sluggish response, it causes a severe lag in hydraulic cylinder movement and wastes immense diesel fuel. Our HZ-PD075 control blocks utilize micro-honed spool kits designed to react within milliseconds of pressure feedback. Every pump is dynamic-tested to ensure the load-sensing margin is perfectly calibrated to matching Parker factory curves before packing.
