Pressure die casting is a high-precision manufacturing process in which molten metal is injected under high pressure into a steel mold (die), producing complex, net-shape metal parts with excellent surface finish and tight tolerances. It is the go-to solution for industries demanding high-volume production of lightweight, structurally sound components. TEAM MFG is a professional pressure die casting manufacturer offering custom die casting services from prototype to mass production, delivering high-precision aluminum, zinc, and magnesium die cast parts with full engineering support, tooling, CNC machining, and surface finishing — all under one roof.
When thousands or millions of identical metal components are required, pressure die casting offers a balance between speed, strength, dimensional consistency, and cost efficiency that traditional machining cannot achieve. That is the reason why companies choose pressure die casting:
High production efficiency – Cycle times as short as a few seconds per shot
Repeatable quality – Consistent dimensions across thousands of parts
Complex geometries – Thin walls, internal features, and integrated functions in a single casting
Lightweight metal components – Ideal for aluminum and magnesium alloys
Reduced machining costs – Near-net-shape parts minimize secondary operations
TEAM MFG is your China-based manufacturing partner offering full-service support from engineering consultation through tooling, casting, CNC machining, and surface finishing. We help global customers bring complex metal parts from concept to mass production with confidence.
Understanding the die casting process is essential for design engineers and procurement teams evaluating manufacturing options. Here is a step-by-step overview:
The steel mold (die) is preheated and coated with a release agent to facilitate part ejection and extend tool life.
Molten metal (typically aluminum, zinc, or magnesium alloy) is injected into the die cavity at high pressure (typically 1,500–12,000 PSI). This high pressure ensures the metal fills even the most intricate features of the mold.
The metal cools and solidifies rapidly within the die. Cooling time depends on wall thickness, alloy type, and part geometry.
The die opens, and ejector pins push the solidified casting out of the mold.
Excess material (flash, overflow, and runners) is trimmed. Parts may then proceed to CNC machining, surface treatment, or assembly.
Feature | Benefit |
|---|---|
Thin walls & ribs | Reduce weight while maintaining structural integrity |
Bosses & integrated mounting features | Eliminate assembly steps and reduce part count |
Cooling channels | Enable thermal management without additional components |
Short cycle times | High output per hour |
Multiple cavity tooling | Multiply output per shot |
Automated production | Consistent quality with minimal labor cost |
Good design is the foundation of successful die casting. At TEAM MFG, our engineering team works with customers during the design phase to optimize parts for manufacturability, reduce cost, and prevent defects.
Uniform wall thickness is critical. Uneven walls cause:
Differential cooling rates
Shrinkage porosity
Warpage
TEAM MFG Recommendation: Maintain wall thickness within 10–20% variation across the part. Our engineers can perform mold flow simulation to identify potential issues before tooling is built.
Draft angles allow the casting to be ejected cleanly from the die without damage.
Typical draft: 1°–3° per side
Deeper features require more draft
Textured surfaces need additional draft
How to increase strength without increasing material thickness:
Ribs and bosses are essential design features in die casting. They add structural rigidity and provide mounting points without adding bulk.
Design Guidelines:
Feature | Guideline |
|---|---|
Rib thickness | 60–70% of adjacent wall thickness |
Rib height | Maximum 3× rib thickness |
Boss OD | 2× the hole diameter |
Boss height | Maximum 3× boss OD |
Fillet at base | Minimum 0.5mm radius to reduce stress concentration |
Why this matters:
Prevents sink marks on the opposite surface
Reduces material usage and cycle time
Improves filling and reduces porosity risk
At TEAM MFG, we review rib and boss geometry during DFM (Design for Manufacturability) analysis and provide optimization suggestions before tooling begins.
Understanding common defects and their solutions helps engineers design better parts and select the right supplier.
Defect | Cause | Solution |
|---|---|---|
Porosity | Trapped gas during injection | Improve venting design; optimize injection speed profile |
Shrinkage | Uneven cooling / thick sections | Optimize wall thickness; add overflow wells |
Flash | Excessive injection pressure or die wear | Adjust clamping force; maintain tooling |
Short shot | Poor metal filling | Improve gating system; increase injection pressure |
Cold shut | Metal solidifies before filling | Increase die temperature; optimize gate location |
Sink marks | Local thick sections cooling slower | Reduce local thickness; add ribs instead |
TEAM MFG Advantage: Our in-house engineering team uses mold flow simulation (Magma, AnyCasting) to predict and eliminate these defects before the first shot is made. This saves our customers time and cost compared to suppliers who rely on trial-and-error.
TEAM MFG works with a wide range of die casting alloys to meet different mechanical, thermal, and corrosion requirements:
Alloy | Key Properties | Typical Applications |
|---|---|---|
A380 (AlSi8Cu3) | Good strength, excellent castability | Automotive housings, engine brackets |
A360 (AlSi10Mg) | Superior corrosion resistance, pressure tightness | Marine, hydraulic components |
ADC12 | Cost-effective, good fluidity | Consumer electronics, general hardware |
Zamak 3/5 | Excellent surface finish, low melting point | Decorative parts, small precision components |
Magnesium AZ91D | Ultra-lightweight, high strength-to-weight ratio | Aerospace, portable electronics |
Not sure which alloy is right for your project? Contact TEAM MFG for a free material recommendation based on your application requirements.
Tooling is the heart of pressure die casting. The right tooling strategy depends on your project stage, volume requirements, and budget.
Suitable for:
Design validation
Small batch production (100–5,000 pcs)
Market testing and customer samples
Options:
Soft tooling (aluminum or pre-hardened steel): Lower cost, faster lead time (2–4 weeks), suitable for low-volume runs
Rapid tooling with sand casting or gravity casting: For initial form/fit testing before committing to hard tooling
Suitable for:
Medium to high volume (10,000+ pcs)
Long-term supply programs
Features:
H13 or SKD61 hardened steel dies
Multi-cavity configurations for higher output
Conformal cooling channels for cycle time optimization
Designed for 100,000–1,000,000+ shot life
In-house tool design and manufacturing
Mold flow simulation before cutting steel
T1 sample delivery within 4–6 weeks (standard)
Tool life management and maintenance program
Tooling ownership options: customer-owned or TEAM MFG-managed
Raw die castings often require surface treatment to meet functional or aesthetic requirements. TEAM MFG provides a full range of finishing services in-house or through qualified partners:
Precision machining of critical dimensions, threads, and mating surfaces
Tolerances down to ±0.01mm
Multi-axis machining for complex features
Benefits:
Excellent corrosion resistance
Wide range of colors and textures
Durable, scratch-resistant finish
Environmentally friendly (no solvents)
Typical applications: Outdoor equipment, automotive brackets, industrial housings
Benefits:
Superior oxidation and corrosion resistance
Decorative appearance (clear, black, colored)
Increased surface hardness
Improved paint adhesion (when used as primer)
Typical applications: Consumer electronics enclosures, architectural components, automotive trim
Benefits:
Removes surface marks, oxide layers, and minor imperfections
Creates uniform matte texture
Improves paint/coating adhesion
Improves overall appearance consistency
Options include:
Wet painting (spray)
Electroplating (chrome, nickel, zinc)
E-coating
PVD coating
Typical applications: Consumer products, automotive appearance parts, decorative hardware
Quality control is critical when sourcing die cast parts from overseas. TEAM MFG implements a multi-stage QC system to ensure every shipment meets your specifications.
Alloy verification: Spectrometer analysis to confirm chemical composition
Material certificates: Mill certificates provided with every batch
Ingot traceability: Full lot tracking from raw material to finished part
Dimensional checks: CMM (Coordinate Measuring Machine) measurement at defined intervals
Visual inspection: 100% visual check for surface defects (cracks, porosity, flash)
Process monitoring: Real-time tracking of injection pressure, temperature, and cycle time
X-ray inspection: For critical safety parts requiring internal integrity verification
First Article Inspection (FAI): Full dimensional report before mass production approval
AQL sampling or 100% inspection based on customer requirements
Functional testing (pressure test, torque test) when applicable
Protective packaging to prevent damage during shipping
Full inspection reports and certificates included with shipment
ISO 9001:2015
RoHS / REACH compliance
TEAM MFG's pressure die casting capabilities serve a wide range of industries:
Industry | Example Parts |
|---|---|
Automotive | Engine brackets, transmission housings, structural components |
Consumer Electronics | Laptop housings, heat sinks, connector bodies |
Industrial Equipment | Pump housings, valve bodies, motor frames |
Lighting | LED heat sinks, lamp housings |
Telecommunications | Antenna housings, filter cavities |
Medical Devices | Instrument housings, equipment frames |
Power Tools | Gear housings, motor end caps |
What Others Offer | What TEAM MFG Delivers |
|---|---|
Standard quoting process | Free DFM analysis with every RFQ |
Wait for problems to appear | Mold flow simulation to prevent defects before tooling |
Casting only | One-stop solution: Tooling + Casting + CNC + Finishing |
Limited communication | Dedicated project engineer from inquiry to delivery |
Generic QC reports | Full traceability and detailed inspection documentation |
Long lead times | T1 samples in 4–6 weeks, production in 8–10 weeks |
Our commitment: We don't just make parts. We solve manufacturing problems.
From initial design review to final production, TEAM MFG helps global customers manufacture reliable custom metal parts through advanced pressure die casting, CNC machining, and finishing solutions.
Whether you need a single prototype for validation or a million-piece annual production program, our team is ready to support your project with engineering expertise, competitive pricing, and dependable delivery.
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TEAM MFG – Your Trusted China-Based Die Casting Manufacturing Partner www.team-mfg.com
TEAM MFG is a rapid manufacturing company who specializes in ODM and OEM starts in 2017.