Die Casting Services
Order Die Casting Online
Welcome to UnityManufacture, where metal parts are cast net-shape instead of cut away. High-pressure die casting injects molten aluminium, zinc or magnesium alloy into a hardened steel die at high velocity, producing thin-wall, structurally consistent parts with repeatable dimensions from the first shot to the hundred-thousandth. Once the tooling is proven, unit cost falls faster than with any subtractive process, which is why die casting is the standard route for housings, brackets, heat sinks and structural enclosures moving from prototype into volume.
What sets UnityManufacture’s Die Casting apart?
- State-of-the-Art Technology: Our cold-chamber and hot-chamber machines run 180 to 1,200 tonnes of locking force, filling wall sections down to 0.8 mm in aluminium and 0.5 mm in zinc.
- Expert Team: Our tooling engineers review draft angles, wall transitions and gate location before any steel is cut, because porosity and distortion problems are designed in, not cast in.
- Customized Solutions: Send us a machined prototype or a cast-and-machined drawing and we will show you which features can be cast net-shape and which still pay for a second CNC operation.
- Tight Tolerances: Linear dimensions hold to +/-0.1 mm on the first 25 mm and +/-0.002 mm per mm beyond, with flatness inside 0.2 mm over 100 mm on supported surfaces.
- Quality Assurance: Every production run is verified by CMM, with X-ray porosity screening and pressure decay testing where sealed cavities matter. PPAP documents available.
- Timely Delivery: Prototype tools deliver first parts in 20 to 30 days. After sample approval, production cells run to scheduled releases with buffer stock so repeat orders do not queue.
Check Out How Unity Manufacture Works In Just A Few Steps
At Unity Manufacture, we’re excited to offer you an easy and efficient way to produce custom metal and plastic parts. Our online platform allows you to upload your CAD files, select your process and material options, and order your parts in one place.
Request quote
First, you need to upload your 2D and 3D files on our Get a Quote page. Alternatively, you can submit your designs via email
Design review
One of our engineers will review your design and consider any possible manufacturing techniques, then generate a detailed cost estimation within an hour.
Feedback & quote
Your project engineer will provide you with a personalized production plan (including materials, processing tech, surface treatment, and lead time) and a detailed quote.
Start production
Upon quote approval, we’ll start production and keep you updated with progress reports and part photos.
Advantages of Ordering Die Cast Parts from Unity Manufacture
Net-Shape Output
Ribs, bosses, thread cores and snap features are cast in, so many parts need nothing beyond a single decking cut and tapping.
Thin Walls
High injection velocity fills wall sections down to 0.8 mm, cutting part weight and material cost without giving up stiffness.
Repeatable Dimensions
A hardened tool holds its geometry for 100,000+ shots, so the hundred-thousandth part still matches the approved first article.
Material Choice
Cast aluminium, zinc and magnesium alloys including ADC12, A380, Zamak 3 and AZ91D, selected against your strength, corrosion and weight targets.
Tooling Support
Prototype and bridge tooling to prove the part before you commit to hardened production steel, then transfer to volume without redesign.
Fast Global Delivery
We ship worldwide from our China facilities. Get a quote and see available delivery options along with your die casting quote.
Die Casting Materials
Aluminium
Zinc
Magnesium
Copper
Brass
Titanium
Finishing Options
Our company offers a wide range of finishing options to make your die cast parts look and perform their best. Our finishing services include:
As-Cast
This option provides the fastest turnaround. Parts are trimmed and shot blasted to remove flash, then left with the natural die cast surface of Ra 1.6 to 3.2 micron, with gate and ejector pin marks visible.
Coating Services
We offer various coating options to help protect your parts from corrosion and wear. Such as:
Surface Finishes
You can enjoy a variety of finishes with our multiple surface finish options, which include,
polishing
Heat Treatment
You can choose any of the following options for effective heat treatment.
Custom finishes upon request
We also provide additional processing and finishes upon request. Our team of experts will work with you to ensure that your parts are finished to your exact specifications.
Die Casting Specifications
The figures below describe normal production capability. Tighter values and larger envelopes are quoted case by case.
| Parameter | Capability | Notes |
|---|---|---|
| Process | High-pressure die casting | Cold chamber for aluminium, hot chamber for zinc and magnesium |
| Part weight | 10 g to 8 kg | Larger shot weights quoted on request |
| Projected area | Up to 600 x 600 mm | Limited by machine locking force |
| Minimum wall thickness | 0.8 mm aluminium, 0.5 mm zinc | Depends on flow length and alloy |
| Linear tolerance | +/-0.1 mm on first 25 mm, +/-0.002 mm per mm beyond | Per ISO 8062-3 DCTG 4 to 6 |
| Flatness | 0.2 mm over 100 mm | Supported datum required |
| Draft angle | 1 degree minimum | 0.5 degree possible on shallow features |
| Machining allowance | 0.5 to 1.0 mm | On sealing faces and bearing fits |
| Tooling lead time | 20 to 30 days prototype, 30 to 45 days production | Includes first-off samples |
| Production lead time | 15 to 25 days after sample approval | Repeat releases from buffer stock |
| Minimum order quantity | 500 pcs for production tooling | 1 to 500 pcs via urethane casting or CNC machining |
| As-cast surface finish | Ra 1.6 to 3.2 micron | Powder coating, plating, chromate, anodizing available |
Die Casting Applications
Die casting is chosen when a metal part has to be strong, dimensionally consistent and cheap at volume. Typical programmes we run include:
- Automotive and EV: transmission cases, oil pans, brackets, sensor housings, inverter enclosures and structural cross-members.
- Electronics and thermal: LED heat sinks, connector shells, EMI-shielded enclosures and power module housings.
- Telecom and RF: filter bodies, waveguide housings and sealed outdoor enclosures with machined gasket grooves.
- Industrial equipment: pump bodies, valve manifolds, gearbox covers, motor frames and pneumatic blocks.
- Consumer hardware: power tool housings, locks, architectural fittings and appliance structural frames.
- Lighting and HVAC: fixture bodies, heat spreaders, fan housings and mounting arms.
Order Die Cast Parts Now
If you want to place an order right away, tap on the request a quote button and place your order immediately.
Overview: What is Die Casting?
Die casting forces molten non-ferrous alloy into a reusable hardened steel die under pressures of 10 to 150 MPa and holds it there until the metal freezes. Cycle times run from a few seconds to two minutes depending on part size, and the same die repeats that cycle hundreds of thousands of times. Aluminium is melted in a cold chamber and injected; zinc and magnesium run hot chamber or heated-manifold cold chamber depending on alloy and shot weight.
The economics are front-loaded: tooling is the expensive part, and once it is built each piece costs little more than metal, machine time and finishing, so unit price falls steeply as volume rises. That makes die casting the natural next step after machined prototypes or urethane cast pilot parts. Around 1,000 pieces is usually the point where a hardened die beats CNC machining from billet; below that we will tell you honestly whether injection molding or urethane casting is the better bridge.
Related Unity services: CNC Machining · Injection Molding · Urethane Casting · Aluminum Extrusion · Sheet Metal Fabrication · All Services
Unity Manufacture Casting Resources
Are you looking to learn more about die casting? Check out our latest casting and tooling resources, covering everything from tooling economics to tolerances.