Hydraulic Cylinder Casting Components – Aluminum Die Casting

Process: High Pressure Die Casting (HPDC)
Alloys: ADC12 / A380 / AlSi9Cu3 / AlSi12Fe
Locking Force: ≤800 tons | Component Weight: ≤10 kg

Product Description

Wuxi Hengzhihui Metal Materials Co., Ltd. manufactures precision aluminum die casting components for hydraulic cylinders, including end caps (cylinder heads), pistons (low‑pressure applications), guide rings, mounting brackets, valve blocks, and rod clevises. These components are produced using high pressure die casting on machines from 80 to 800 tons clamping force, with individual part weights below 10 kg.

While hydraulic cylinder barrels and high‑pressure internal components are typically made of steel or iron, many ancillary and non‑pressure‑bearing parts can be successfully converted to aluminum die casting to achieve weight reduction, lower cost, and faster production. Our components are widely used in agricultural machinery, construction equipment, material handling, industrial hydraulics, and mobile hydraulic systems where the operating pressure is moderate (≤160 bar) or where the component does not directly contain the pressurized fluid.

Typical Hydraulic Cylinder Components We Cast

Note: For components directly exposed to full hydraulic pressure (>160 bar), we recommend steel or ductile iron. Our aluminum castings are ideal for the low‑pressure side (return line), pneumatic cylinders, lubrication systems, and structural attachments.

Material Advantages – Why Aluminum Alloys for Cylinder Components?

Production Capabilities for Hydraulic Components

Key Quality Features for Hydraulic Applications

1. Pressure integrity – We offer vacuum assisted die casting and impregnation (porosity sealing using sodium silicate or acrylic resin) to ensure oil‑tight performance up to 100 bar for non‑structural hydraulic passages.

2. Seal groove precision – Critical grooves for O‑rings, rod seals, and wipers are machined on CNC lathes with surface finish Ra ≤1.6 μm and tolerance ±0.02 mm.

3. Threaded ports – Cast‑then‑machined NPT, BSPP, or metric threads for fittings and plugs.

4. Corrosion protection – Optional anodizing (clear or hard) or e‑coating for cylinders used in wet or salty environments (agriculture, marine).

5. Full inspection – ZEISS CMM for dimensional report; X‑ray for porosity check (on request); pressure decay test for leak‑tight parts.

Design Recommendations for Die Cast Hydraulic Components

• Avoid high pressure chambers – Use aluminum castings only for caps, brackets, low‑pressure return passages, or pilot circuits.

• Increase wall thickness at threaded areas – Minimum 5 mm of material around ports.

• Use ribbing – To achieve stiffness similar to iron at lower weight.

• Specify impregnation – For any component that must retain oil or hydraulic fluid under pressure.

We provide DFM (Design for Manufacturing) feedback to help you convert existing steel or iron parts into castable aluminum designs.

Typical Applications

• Agricultural hydraulic cylinders (steering, lift, implement)

• Construction equipment (small excavator cylinders, skid steer loader)

• Material handling (forklift tilt cylinders, pallet jack)

• Industrial hydraulics (punch press cylinders, clamping units)

• Mobile hydraulics (dump truck hoist cylinders, log splitter)

• Pneumatic cylinders (all components suitable for compressed air)

Why Choose Wuxi Hengzhihui?

✅ Focus on <10 kg aluminum castings – Ideal for hydraulic cylinder components of small to medium size.
✅ 800T max capacity – Sufficient for end caps and brackets up to 600 mm diameter.
✅ In‑house impregnation – Pressure tightness for oil/air applications.
✅ Precision machining – CNC turning and milling for seal grooves and threads.
✅ Alloys in stock – ADC12, A380, AlSi9Cu3, AlSi12Fe – ready for production.
✅ Fast prototype – Sample castings in 20‑30 days.
✅ Global export – We ship to Europe, North America, Asia, and Middle East.

Request a Quote

Please send your 2D drawing (PDF/DWG) and 3D model (STEP/IGS) with the following information:

• Operating pressure (if fluid‑contacting)

• Required surface treatment

• Annual quantity

We will reply with a competitive price, tooling cost, and lead time.

Aluminum Alloy Die Casting Parts

High Pressure Die Casting | ADC12 / A380 / AlSi9Cu3 / AlSi12Fe | Weight <10kg | ≤800T Locking Force

Product Overview

Wuxi Hengzhihui Metal Materials Co., Ltd. specializes in aluminum high pressure die casting (HPDC) using advanced cold chamber die casting machines with clamping force up to 800 tons. We produce high‑precision, sound‑free aluminum high pressure die castings with individual part weight ≤10 kg. Our in‑house capabilities include mold design, precision casting, CNC machining, and surface finishing – all under one roof.

Our primary alloy portfolio covers the most demanded aluminum materials for industrial and automotive applications:

• ADC12 (JIS)

• A380 (ASTM)

• AlSi9Cu3 (DIN)

• AlSi12Fe (DIN)

These alloys offer excellent castability, good mechanical properties, corrosion resistance, and thermal conductivity.

Key Technical Specifications

Material Advantages – Why These Alloys?

ADC12

• Excellent fluidity and pressure tightness

• Widely used for general engineering parts, engine brackets, covers, and housings

• Good machinability and recyclability

A380

• Most common Al‑Si‑Cu die casting alloy

• Combines high strength, good thermal conductivity, and superior corrosion resistance

• Ideal for complex thin‑wall components (electronic enclosures, automotive structural parts)

AlSi9Cu3 (EN 1706)

• Higher copper content for improved strength at elevated temperatures

• Excellent die filling properties, suitable for highly stressed parts (transmission housings, oil pans)

AlSi12Fe

• Low copper, iron‑containing alloy → reduces die soldering and extends tool life

• Very good corrosion resistance and dimensional stability

• Often chosen for large, thin‑walled castings (LED housings, industrial radiator frames)

Production Capabilities

• Machine fleet: Multiple units from 80T to 800T (including high‑performance 800T machines with 4‑stage injection control)

• Injection performance: Up to 8 m/s injection speed, pressure build‑up time <15 ms

• Monitoring system: VMES production visualization + Omron PLC with imported electronic rulers → fully traceable process parameters

• Quality control: ZEISS CMM, optical spectrometer, X‑ray inspection, tensile testing – all in‑house

• Secondary operations: CNC turning & milling (3/4/5‑axis), deburring, vibratory finishing, tumbling, powder coating, anodizing, and plating (subcontracted)

Typical Applications (with recommended alloys)

Why Choose Wuxi Hengzhihui?

1. Focused capability – Specialized in parts ≤10 kg and ≤800T, which ensures fast cycle times, lower tooling cost, and consistent quality for small‑to‑medium sized aluminum castings.

2. Alloy flexibility – We regularly work with ADC12, A380, AlSi9Cu3, AlSi12Fe, and can adjust chemistry within narrow ranges per customer specifications.

3. Fast lead time – Quick mold trial, sample approval within 20‑30 days for moderate complexity parts.

4. 100% inspection – Dimensional report with every shipment; mechanical properties and chemical composition certified.

5. One‑stop service – From design optimization (DFM) → tooling → casting → CNC → surface treatment → packaging.

Get a Quote or Technical Consultation

We support both standard production runs and prototype development. Please contact our sales engineer Alice Yuan directly:

Zinc Alloy Die Casting Parts

Zinc Alloy Die Casting Parts

Zamak 3, Zamak 5 – Up to 800T – Precision & Complex Shapes

Product Overview

Our zinc alloy die casting parts are manufactured using high pressure die casting machines up to 800 tons, producing components with exceptional surface finish, tight tolerances, and complex geometries. Zinc alloys offer excellent fluidity, allowing thin walls and intricate details.

✅ Zinc alloys – Zamak 3, Zamak 5, Zamak 2
✅ Weight range – 5g to 10kg per part
✅ Complex shapes – Thin walls (0.8mm minimum)
✅ Excellent surface – Ready for plating, painting, or powder coating
✅ Secondary services – CNC machining, tapping, assembly

Key Specifications

Advantages of Zinc Die Casting

Applications

• Automotive locks, handles, switches

• Electrical connectors, housings

• Door hardware, plumbing fittings

• Industrial valves, levers, gears

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High Pressure Die Casting Parts – Aluminum Alloy

High Pressure Aluminum Die Casting Parts

ADC12, A380, A360 – Up to 800T Locking Force | Weight <10kg

Product Overview

Wuxi Hengzhihui Metal Materials Co., Ltd. specializes in high pressure aluminum die casting parts for automotive, industrial, and consumer applications. With die casting machines up to 800 tons and part weight capacity under 10 kg, we deliver precision castings with excellent surface finish and dimensional accuracy.

✅ High pressure die casting process – Superior strength and density
✅ Aluminum alloys – ADC12, A380, A360, LM6, and custom grades
✅ Weight range – 0.01kg to 10kg per part
✅ Machine capacity – Up to 800T locking force
✅ Secondary operations – CNC machining, deburring, surface finishing
✅ Quality control – 100% dimensional inspection, pressure testing available
✅ ISO 9001 compliant – Full traceability

Key Specifications

Applications

Why Choose Our Aluminum Die Casting?

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