ISO 9001:2015 Certified Manufacturer
In-House
Mold Engineering
Solution
1 Stop
In-House Production
Expertise
38+
Years Experience
On-Time Delivery
99%
Reliable Delivery Rate
Mold Engineering for Aluminum Die Casting
At Joincast we have an experienced mold engineering department with 9 specialists covering design, fixture development, CNC machining, and ongoing maintenance. Our design is done using Solidworks and Siemens NX software systems, with mold flow simulation to optimize designs before we start production.
This in-house capability allows us to reduce delays with external tooling suppliers. Mold adjustments and repairs are carried out on-site, to reduce production interruptions. Our engineering team works directly with die casting operations on the shop floor to refine mold performance based on real production experience.
All molds remain within our facility throughout their service life. This ensures the security of your designs as well as consistent part quality and faster issue resolution.
9
Dedicated Staff
In-House
Design & Build
Mold Flow
Simulation
Mold Engineering FAQ
Who owns the die casting molds - JoinCast or the customer?
Mold ownership is negotiable and specified in your contract. Regardless of ownership, all molds remain stored at our Changhua, Taiwan facility for the life of your production program.
Can your mold engineering team provide design for manufacturing (DFM) feedback on my part design?
Yes, our 9-person mold engineering team reviews customer CAD files during the quoting phase and provides DFM recommendations including draft angle optimization, wall thickness uniformity, gate placement for minimal visible marks, and geometry modifications to improve castability.
We use mold flow simulation to identify potential defects before mold fabrication begins.
What happens if I need to modify the mold after production has started?
Our in-house mold repair and adjustment team can implement modifications for minor changes like dimension adjustments or texture modifications.
Major geometry changes requiring welding and re-machining are also possible but could impact production schedules. Because all molds remain at our Taiwan facility, we avoid the coordination delays typical when molds are stored at third-party tooling shops.
How long does mold design and fabrication typically take?
Mold manufacturing time is directly proportional to the size, tonnage, and complexity of the machine. A production schedule will be provided after the contract is signed. It is not available during the quotation stage.
Do you perform mold flow simulation before cutting steel?
Yes, our mold design team uses simulation software to predict fill patterns, identify potential porosity locations, optimize gate and runner sizing, and validate cooling channel effectiveness.
Simulation results inform gate placement to minimize visible marks on cosmetic surfaces and prevent defects in critical functional areas. We share simulation reports with customers during mold design review.
How do you maintain molds between production runs to ensure consistent quality?
Our dedicated mold maintenance technician performs preventive maintenance including cleaning, lubrication, and inspection after each production run. Molds are stored in our climate-controlled facility with rust prevention treatment.
Before each production restart, molds undergo setup verification and first article inspection to confirm dimensions match previous runs. Maintenance records are documented in our ISO 9001:2015 system.
How do you handle mold design for parts requiring tight tolerances on critical dimensions?
Our mold designers account for aluminum shrinkage rates (typically 0.5-0.7%) when programming cavity dimensions, with tighter compensation for critical features. For LED lighting components requiring precise optical alignment or medical equipment parts with assembly tolerances, we build adjustment capability into mold design.
First article inspection with CMM verification confirms dimensions before full production, with mold adjustments made if needed.
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Certifications & Quality
ISO-Certified Quality & Advanced Inspection Component Inspection
We use Keyence 3D Scanning Systems for dimensional verification and 3D CMMs for micron-level dimensional accuracy verification
- Keyence 3D Scanning
- Mitutoyo 3D CMM Verification
- Dedicated 10 Member QC Team
High Quality Castings for Key Industries
Marine Components
Outboard Lower Unit Housing
- Alloy: ADC-3 / A383
- Weight Range: ~1.4 kg
- Finish: Chromate conversion
Pneumatic Tools
Pneumatic Tool Housing
- Alloy: ADC-12 / A360
- Weight Range: 0.3 – 0.9 kg
- Finish: Powder coat, paint, or anodized metal look
Heat Sink & Controller
Die-Cast Heat Sink
- Alloy: ADC-12 / A360
- Weight Range: ~0.4 kg
- Finish: Anodizing / Powder Coating
Lighting
LED Heat Sink Housings
- Alloy: ADC-12 / A360
- Weight Range: 0.2 – 0.9 kg
- Finish: Powder coat or anodizing
Medical Equipment
Medical Device Housing
- Alloy: ADC-12 / A360
- Weight Range: 0.4 – 1.1 kg
Custom Applications
Complete Manufacturing Solution
From Design to Delivery: Full-Service Die Casting
At Joincast we keep every critical process in-house at Joincast, operating from a 9,900 m² facility to deliver dependable lead times and consistent quality. Across three production sites, we run die casting machines (135T–900T), CNC machining centers with automation, plus fully integrated surface treatment lines.
From small precision parts to castings up to 3 kg, we process ADC-12 / A360 and ADC-3 / A383 aluminum alloys in a 24-hour, single-supplier operation.
Our Production Capabilities
Mold Engineering
Die Casting
Polishing & Shot Blasting
CNC Machining
Surface Treatment
TPR Insert & Printing
Quality Inspection
