When buyers look for aluminum die-casting services, what they really want is more than a molten metal process — they want parts that meet mechanical strength, assembly tolerances, corrosion resistance, and shipment-readiness.
At Yongzhu Casting, our job isn’t just casting. It’s delivering components you can assemble and sell — without surprises.
Let me walk you through the full stack of services we offer, and why they matter.
HPDC – The Foundation of Shape and Strength
High Pressure Die Casting (HPDC) is the core of what we do. This process defines the shape, surface, and even the future machining path of your part. But not every part is right for HPDC — and not every casting comes out “assembly ready.”
We use 280T to 2000T die casting machines, which allow us to handle a wide range of part sizes. For example:
| Tonnage | Typical Application | Mold Setup | Cycle Time |
|---|---|---|---|
| 280T–400T | Small covers, enclosures | Single-cavity | ~30–50s |
| 800T–1250T | Mid-size housings, brackets | 1–2 cavities | ~45–60s |
| 1600T–2000T | Structural parts, large bases | Multi-slide or insert molds | ~60–90s |
Our typical alloy is ADC12, but we also support A380 and EN AC-46000, depending on your region and spec. Recommended wall thickness is ≥1.5 mm, though we’ve successfully cast localized areas down to 1.2 mm for weight savings.
We also offer insert-casting — embedding brass nuts or copper studs directly into the aluminum body. This helps reduce assembly steps for OEMs.
Why CNC Machining Is a Must for Most OEM Projects
Even with precise dies, most parts need finishing work. Why? Because you may need precision hole locations, thread cuts, sealing faces, or press-fit zones.
That’s where our CNC machining centers come in — horizontal, vertical, and 4-axis.
We guarantee:
- General tolerance: ±0.05 mm
- Critical tolerance zones: ±0.01 mm
- Processes: Tapping, boring, grooving, facing, slotting, drilling
- Verification: 100% inspection on key dimensions, plus CMM reports upon request
This isn’t optional — it’s what ensures your parts fit into your assemblies with no rework.
Surface Finishing Isn’t Just for Looks — It’s for Performance
We’ve seen it too often — customers skip surface treatment to save costs, only to fail salt spray tests or run into corrosion issues.
That’s why we offer:
- Powder coating (common for outdoor, visual parts)
- E-coating (for uniform coverage and corrosion resistance)
- Spray painting (for flexible color/masking needs)
Before any finish, we prepare the surface by shot blasting or sandblasting to ensure coating adhesion. Colors can be customized — black, grey, silver, army green, etc.
For powder-coated or e-coated parts, we target ≥500 hours salt spray resistance with our composite layers.
Assembly & Packaging — What It Means to Deliver a Finished Product
We don’t just ship castings — we ship ready-to-assemble parts.
Many clients told us their previous suppliers’ parts were dimensionally correct, but couldn’t be assembled smoothly. Why? Missing torque control, misaligned sealing rings, or inconsistent fasteners.
So we added assembly to our service list:
- Tasks we support: cable connections, gasket sealing, fastener torqueing, Loctite application, ultrasonic welding, and more
- Daily capacity: up to 1,000 sets per line
- Packaging options: anti-static bags, plastic trays, barcode stickers, batch sorting
If you send us a BOM or an assembly SOP, we’ll execute it — down to the labeling.
Our Technical Capabilities – What We Can Deliver
Here’s a snapshot of our full-service production setup:
| Capability | Specification |
|---|---|
| Die Casting Machines | 280T, 400T, 800T, 1250T, 1600T, 2000T |
| CNC Machining Accuracy | ±0.05 mm (±0.01 mm in key areas) |
| Surface Treatments | Powder coating, e-coating, anodizing, spray painting |
| Wall Thickness | Typically ≥1.5 mm; minimum ~1.2 mm in localized zones |
| Testing | CMM, 2.5D projector, calipers, thread gauges, pull testing, coating adhesion testing |
| Sample Delivery Time | Tooling + sample: ~20–25 days; repeat small batch: ~7–10 days |
| MOQ | Depends on part; standard MOQ is ~500 units; samples allow smaller combos |
Aluminum die-casting isn’t just about molten metal in a mold. It’s about delivering reliable, repeatable components that function — and impress.
With our in-house machining, surface finishing, assembly, and engineering team, we help you skip the headaches and hit your launch goals.
Searching for High-Quality for Cast Aluminum Parts?
You’ve come to the right place! Yongzhu Casting is a certified die casting manufacturer with over 20 years of expertise in the industry.
We have successfully completed numerous die casting projects for Aluminum casting parts, particularly in your industry.
Zhejiang Yongzhu Casting Technology Co., Ltd.
Location: Zhejiang, China
Company type: Manufacturers, Producers, Wholesalers
Year Founded: 2004
Main Products: Aluminium die casting, Mold Making, Die Casting, Sand Casting, Gravity Casting
Leading Chinese producer Yongzhu Casting is formerly known as Hangzhou Higer Metal Products Co., Ltd., was established in 2004.
With 20 years of experience in the industry, we are a specialized manufacturer in Aluminum casting and Machining.
Our products are widely used in various applications such as Automotive, Energy, Lighting, Medical, Home Furnishings, Machinery & Equipment etc. Below are our advantages:
Design Review & DFM Support
Our professionals will evaluate your designs and provide suggestions for cost savings. Additionally, we offer Design for Manufacturing (DFM) assistance and conduct mold flow analyses to facilitate efficient production.
State-of-the-Art Manufacturing Equipment
Our facility is equipped with advanced hot-chamber and cold-chamber die casting machinery for aluminum and zinc production.
We also utilize high-precision CNC machines in a temperature-controlled workshop, featuring 3-Axis, 4-Axis and 5-Axis setups to manage any project you have.
Rigorous Quality Control Measures
Our dedicated quality control team ensures that all parts meet the highest standards of quality and consistency. We employ high-accuracy measurement instruments, including CMM, spectrometers, and X-ray detectors.
Comprehensive Surface Treatment Options
We provide a variety of surface finishing techniques for your precision die casting components. Our in-house services include cleaning, polishing, anodizing, shot blasting, and painting.
Flexible Project Acceptance
While larger manufacturers often shy away from low-volume projects, and smaller ones may struggle with quality, Yongzhu Casting stands apart. We prioritize customer satisfaction and willingly accept high-mix, low-volume projects like yours.
