Die Casting for Custom Parts

Build metal components with die casting support for prototypes, functional parts, and production runs in aluminum, zinc, and magnesium alloys across China and Vietnam.

Aluminum, zinc, and magnesium alloys
Gravity, low-pressure, and high-pressure processes
Machining, finishing, and assembly available
China + Vietnam manufacturing coordination

OUR SERVICES

Die casting

Die casting can be used to produce housings, brackets, heatsinks, engine components, transmission parts, and structural metal components. LEAD MFG supports die casting projects from tooling design and material selection through casting, machining, finishing, and assembly.

Capabilities

Our Capabilities

Gravity die casting is used for larger, thicker-walled parts where slower fill rates and lower tooling cost are acceptable. GDC works well for prototypes, low-volume production, and parts that need structural integrity over thin walls.

Gravity die casting is good for:

Low-pressure die casting is used for parts that need improved density, reduced porosity, and better mechanical properties than gravity casting. LPDC works well for wheels, structural components, and pressure-tight applications.

Low-pressure die casting is good for:

Aluminum A356, AlSi7Mg; magnesium structural and cosmetic parts
Min wall 3mm, max 30kg, ISO 8062 ST5–ST6
Cycle 3–6 min, tool life 50,000+ parts
Oxides float to the runner — properties exceed GDC
Automotive wheels, cylinder heads, motor housings

High-pressure die casting is used for complex, thin-walled parts with tight tolerances and high surface quality. HPDC works well for high-volume production of housings, brackets, and detailed components in aluminum and zinc.

HDPC is good for:

Aluminum, zinc, magnesium — clamping 125T–800T
Min wall 0.8mm (aluminum), max 12kg, ISO 8062 ST4–ST5
Die life 100,000+ shots, cycle in seconds
Trimming, shot blasting, CNC mating faces, powder coat
Handheld housings, laptop frames, LED heat sinks

Materials

Materials for Die Casting

ADC12 / A380 for general-purpose housings, brackets, and automotive parts
A360 for improved corrosion resistance and pressure-tight applications
ADC6 / A413 for good castability and thin-wall capability
AlSi10MgFe for structural parts needing higher strength

Zamak 3 for general-purpose die cast parts with good dimensional stability
Zamak 5 for higher strength and hardness in mechanical applications
Zamak 2 for bearings, wear parts, and high-strength requirements

AZ91D for lightweight structural parts in automotive and consumer electronics
AM60B for improved ductility and impact resistance

Surface Finishing Options

Surface finish is applied to parts after they have been machined to create a unique surface layer to meet the hardness, chemical resistance, and appearance requirements of the products. It depends on material properties and the application of the part. LEAD offers the following finishing options for sheet metal services:

Powder Coating

Bead Blasting

Brushing

Powder Coating

Bead Blasting

Brushing

Why Us

Customers choose LEAD MFG when they need a real manufacturing partner, not a loose supplier network. We focus on technical communication, quality consistency and a clean route from prototype to production.

Engineering Review

DFM feedback, tolerance review and process recommendations before production decisions.

Prototype to Production

Keep project knowledge with one partner as volume and requirements change.

China + Vietnam Network

Use China engineering depth and Vietnam manufacturing flexibility when supply chain risk matters.

Process Breadth

CNC, sheet metal, molding, die casting, 3D printing, extrusion, finishing and assembly.

Quality Discipline

Practical inspection planning, repeatable process control and clear production documentation.

Supply Chain Flexibility

Match the project to the right facility, stage and risk profile.

Transparent Documentation

Design guides, material guidance, equipment lists and QA resources support buyer confidence.

Communication Rhythm

Engineering and sourcing teams get structured updates, not vague factory replies.

Real Manufacturing Bases

Shenzhen, Dongguan and Bac Ninh roles are visible and easy to verify.

Frequently Asked Questions

What type of design files can you accept?

We accept 3D CAD files in STL, STP, STEP, OBJ IGS, or IGES format and 2D drawings(jpg, png, gif, BMP, pdf) with dimensional details and specific manufacturing requirements.

How long does it take to get a pricing quote?

We respond within 2 hours after your request. Princing quote will be send within 8 hours.

Can I use my master model to make duplicate copies for vacuum casting or CNC machining?

Yes, master models are used to create silicone molds for vacuum casting and can be made from any rigid solid that can withstand heat up to 100 °C. Models used for CNC machining will be 3D scanned to create a CAD/CAM program for production.

How quickly can I get my parts?

Quality parts less than 1000pcs can be made in as fast as one week if you provide complete 2D and 3D CAD models. More complex parts requiring other special features will take longer. As for shipping, most of our shipments are via air freight, which can take 5-7 days from China to Europe or North America.

How do we protect your data and intellectual property？

We respect your intellectual property. None of your information, images, files or likenesses will be shared with any third party, and it will not be used for any advertising, marketing, or promotional use without your explicit written authorization. If you would like to sign NDA agreement, please contact our team for support.

How about the quality guarantee policy?

We follow the ISO/IATF standard and guarantee that we will rework the products or refund them if there are any quality problems. The full-dimensional report, material certification, or first article inspection are provided on request before order placement.