Custom Parts, Built to Your Specifications

Metal and plastic components manufactured from your 2D drawings, 3D models, or samples — one partner from prototype to production.

*All uploaded drawings are confidential. NDA available on request.

Home
Casting Services

Custom OEM Precision Cast Iron Hydraulic Pump Housing

Product Overview
Shenzhen Sunmy Hardware Co., Ltd. offers premium, high-durability OEM Cast Iron Hydraulic Pump Housings specifically engineered for demanding heavy-duty industrial and mobile hydraulic systems. Designed to withstand high operating pressures and repetitive stress cycles, this component serves as the structural core for gear pumps, vane pumps, and hydraulic motor assemblies.

Leveraging our advanced iron casting and secondary multi-axis CNC machining, we eliminate inner porosity defects while guaranteeing perfect concentricity, flawless thread profiles, and ultra-precise sealing faces. As a dedicated OEM/ODM manufacturer, we execute 100% tailored production matching your unique engineering designs and technical drawings.

Manufacturing Process & Engineering Insights
Our robust manufacturing flow guarantees structural integrity from raw melt to final precision component:

Advanced Iron Casting: Utilizing specialized Sand Casting or Shell Mold Casting techniques with high-grade Grey Iron (GG20/GG25) or Ductile Iron (GGG40/GGG50) to achieve superior mechanical strength and vibration-damping properties.
Multi-Axis CNC Machining: Post-casting processing is executed on advanced CNC machining centers to achieve tight-tolerance internal bores, high-precision O-ring grooves, face parallelism, and flawless threaded connection ports.
Defect and Pority Control: Strict thermal management during the cooling phase ensures uniform grain structure, effectively preventing micro-porosity and internal casting voids that compromise performance under hydraulic pressure.

Technical Specifications

Technical Parameter	Specification Details & Capabilities
Product Name	OEM Precision Cast Iron Hydraulic Pump Housing / Valve Body
Primary Process	Iron Casting (Sand/Shell Molding) + Precision CNC Machining
Material Options	Grey Cast Iron (GG20, GG25, HT200, HT250)Ductile Cast Iron (GGG40, GGG50, QT400, QT500)
Dimensional Tolerance	Machining: Up to ±0.010 mm (ISO 2768-m fine)Casting Geometry: ISO 8062 CT7 – CT9 grade
Surface Treatment	Anti-rust oil immersion, Electrophoretic Painting (E-coat), Powder Coating, or Custom Zinc Plating
Interface & Ports	High-precision threaded fluid ports (NPT / G / Metric) & SAE Flange connection mountings
Quality Inspection	100% CMM Coordinate Dimension Check, Spectrometer Material Analysis, Hydraulic Pressure Leakage Test
Customization Scope	100% Custom manufacturing based on client’s 2D/3D engineering drawings (STEP, IGES, DWG, PDF)

Key Features & Competitive Advantages

Exceptional Wear & Pressure Resistance: High-density iron casting composition provides optimal structural rigidity and long-term fatiguing resilience under continuous high hydraulic pressures.
Flawless Internal Sealing Faces: Micro-machined internal surfaces guarantee zero-leakage interfaces with mating seals, pistons, or internal gears, preserving peak volumetric efficiency.
100% Comprehensive Customization: From selecting custom casting alloys to machining intricate non-standard port arrays, we translate your exact CAD blueprints into reliable physical hardware.
Rigorous B2B Quality Control: Every single batch undergoes spectral chemical composition verification, ultrasonic defect checking, and ultra-precise coordinate measurements.