Many buyers start their sourcing journey by looking up “Top 10 aluminum die casting companies in Indonesia.” That makes sense — Indonesia is a major manufacturing hub in Southeast Asia, offering attractive labor and energy costs.
But after more than 20 years supplying aluminum die cast parts worldwide, we’ve seen that being on a popular list doesn’t always mean a supplier can meet your specific tolerances, surface needs, or packaging standards. A truly reliable partner is about more than rankings.
Top 10 Aluminum Die Casting Companies in Indonesia
- PT Dharma Polimetal – Well known in automotive and motorcycle die cast parts.
- PT Sanwamas Metal Industry – Produces aluminum and zinc die castings for various sectors.
- PT Yasunaga Indonesia – Japanese-affiliated, serving engine and brake systems.
- PT Indos Precision – Focused on non-ferrous metal casting and light components.
- PT Astra Otoparts – A large group with divisions handling die cast products.
- PT Murni Jaya – Supplies hardware and light industrial castings.
- PT Pakoakuina – Known for alloy wheels but also does smaller aluminum cast parts.
- PT Kayaba Indonesia – Primarily shock absorbers but has die casting for internal use.
- PT Singa Purba Jaya – Provides general engineering castings including aluminum.
- PT Jebsen & Jessen Technology – Handles specialized precision casting under broader group.
“These companies are frequently referenced in public directories and search results. This list is for general reference only and does not constitute a recommendation.”
Misunderstandings Buyers Should Know When Sourcing aluminum die castings in Indonesia
Over the years, we’ve spoken with several buyers who tried Indonesian die casting suppliers first, only to run into unexpected issues. Here are some practical things we’ve learned about Indonesia’s typical market environment:
- Tooling Often Comes from China or Thailand:
Many Indonesian foundries handle local casting well but still depend on imported dies for complex jobs, extending tooling lead times to 12–14 weeks if special steel grades or cavity designs are needed. - High Minimum Orders:
Because a large share of Indonesian casting work services domestic automotive and scooter manufacturers, typical MOQs are often 15,000 pcs/year or more, which can be a challenge for phased international rollouts. - Finish and Cosmetic Differences:
Local standards often accept flow lines or surface waves that European or North American buyers would flag for rework. Aligning on cosmetic expectations early is critical. - Export Packaging May Need Upgrades:
Many Indonesian foundries are geared for regional trucking, not long ocean freight, so moisture barriers or shock-tested crates aren’t standard unless specified. This can lead to transit damage on global shipments.
Being aware of these points helps buyers avoid surprises and set up the right packaging and inspection procedures from the start.
Local Indonesian Suppliers vs Our Yongzhu Casting
| Feature | Typical Indonesian Supplier | Yongzhu Casting (Our Factory) |
|---|---|---|
| MOQ | Often >15,000 pcs/year | Starts at 300–500 pcs on request |
| Tooling Lead Time | 12–14 weeks (if imported) | 4–6 weeks with in-house tooling |
| Primary Focus | Automotive, motorcycle parts | Automotive, energy, lighting, medical |
| Surface Quality | Functional standard | Cosmetic-grade, anodize/powder coats |
| Tolerance Control | ±0.1 mm typical | ±0.01–0.05 mm with CMM inspections |
| Export Packaging | Basic crates | Drop-tested, moisture-barrier crates |
| Certifications | ISO9001 common | ISO/IATF16949, PPAP if needed |
For many buyers, these differences translate into fewer surprises in quality control reports and smoother customs clearances.
Why an Indonesian Manufacturer Switched to Yongzhu Casting
A while back, we worked with a buyer in Indonesia making small generator enclosures for export. Initially, they sourced locally because of low shipping costs. But after several shipments, they faced repeated issues with porosity around threaded inserts, which caused oil seepage under pressure. Their local foundry was well-versed in standard scooter brackets but didn’t have the leak testing rigs needed to consistently check small sealed housings.
When they came to us, we reviewed their CAD, ran mold flow to spot likely porosity traps, and modified gating slightly. Within five weeks, we delivered samples that passed 6 bar air leak tests, plus we handled the powder coating, cutting their supplier count. Today they rely on us for three different enclosure models, all going straight to their assembly lines in Surabaya.
Why Choosing the Right Fit Matters More Than Any Top 10 List
Indonesia has plenty of capable die casting suppliers, especially for big automotive or two-wheeler contracts. But from what we’ve seen, successful long-term relationships come from choosing a supplier that understands your market’s quality documentation needs, packaging standards, and realistic volume planning — not just picking a name from a top-10 page.
Looking for a trusted aluminum die casting partner?
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.
