About JIERCHEN — Precision CNC Prototyping in Taiwan Since 1985
JIERCHEN Enterprise Co., Ltd. (詰晟模型) is a precision CNC machining and rapid-prototyping manufacturer founded in February 1985 in Banqiao District, New Taipei City, Taiwan. Now in its 41st year and its second generation of family leadership, JIERCHEN has produced prototypes and low-volume production parts for more than 1,000 clients across 10+ countries — “Make your design come true.”
Get a Free Quote See Our EquipmentCompany Snapshot
| Legal name | JIERCHEN Enterprise Co., Ltd. (詰晟模型) |
|---|---|
| Founded | February 1985, by founder and General Manager John Tsai (蔡西江) |
| Headquarters | No. 5, Alley 19, Lane 49, Guoqing Rd., Banqiao Dist., New Taipei City 220, Taiwan |
| Leadership | Second-generation family management under GM John Tsai |
| Track record | 1,000+ clients served across 10+ countries, including the United States, Switzerland, Sweden, Japan, and Australia |
| Quality system | ISO 9001 Certificate No. 10319/0 (AFNOR Certification) |
| D-U-N-S Number | 65-774-7101 |
| Taiwan Unified Business No. | 34672266 |
| Precision standard | ISO 2768-f general tolerance; CMM-verified to ±0.01mm |
Our History
JIERCHEN was established in February 1985 in Banqiao, New Taipei City, at a time when Taiwan’s precision-manufacturing sector was still forming its export identity. Founder and General Manager John Tsai built the company around a simple standard: every mockup and prototype should be dimensionally accurate enough to validate a real design decision, not just look the part.
Four decades later, JIERCHEN is run by its second generation of family leadership, still under the direction of GM John Tsai, and has grown from a domestic CNC job shop into a full-service prototyping partner for product-development teams in more than ten countries. The company holds ISO 9001 certification (No. 10319/0, AFNOR Certification) and verifies finished parts on a Keyence coordinate measuring machine (CMM) to confirm conformance with ISO 2768-f tolerances.
Clients span medical devices, robotics, automotive and EV components, consumer electronics, and AI wearables — industries where a prototype has to behave like the production part, not just resemble it.
From Concept to Scale
JIERCHEN supports every stage of hardware development with a matched process and lead time, so a design can move from validation to production volume without changing suppliers.
| Stage | Process | Typical lead time |
|---|---|---|
| Validate | SLA 3D printing | 1–3 days |
| Test | CNC machining | 3–7 days |
| Pilot | Silicone / vacuum casting | 5–10 days |
| Scale | Steel-mold injection molding | 4–8 weeks |
See the full breakdown of machines and inspection instruments behind each stage on our Equipment page and our five-gate inspection process on the Total Quality Control page.
Why Product Teams Choose JIERCHEN
Genuine precision
Parts are CMM-verified to ±0.01mm against ISO 2768-f, so what you approve is what ships.
Fast turnaround
SLA prototypes in 1–3 days and CNC parts in 3–7 days keep design iterations moving.
Cost discipline
In-house CNC plus a vetted subcontractor network for casting, finishing, and mold production keeps unit cost realistic at every volume.
One-stop service
Design feedback, machining, finishing, and shipping are coordinated under a single ISO 9001 quality system.
Industries We Serve
JIERCHEN prototypes and low-volume production parts for medical devices, robotics, automotive and EV systems, consumer electronics, and AI wearables — sectors where dimensional accuracy and material behavior both matter.
UMass Amherst — Robotics Research Prototype
JIERCHEN CNC-machined a dynamic walking-leg mechanism used as an authorized research and demonstration prototype for a robotics project at the University of Massachusetts Amherst (UMass Amherst), illustrating the tolerance and repeatability required for functional robotics hardware rather than static display models.
Frequently Asked Questions
How long has JIERCHEN been manufacturing prototypes?
JIERCHEN was founded in February 1985 in Banqiao, New Taipei City, Taiwan, and is now in its 41st year of operation under its second generation of family leadership.
Is JIERCHEN ISO certified?
Yes. JIERCHEN holds ISO 9001 certification, Certificate No. 10319/0, issued by AFNOR Certification. The company’s D-U-N-S Number is 65-774-7101 and its Taiwan Unified Business Number (統編) is 34672266.
What tolerances can JIERCHEN hold?
Parts are produced to ISO 2768-f general tolerances and inspected on a Keyence coordinate measuring machine (CMM), which confirms critical dimensions to ±0.01mm.
Which countries does JIERCHEN ship to?
JIERCHEN has served 1,000+ clients in more than 10 countries, including the United States, Switzerland, Sweden, Japan, and Australia.
What processes does JIERCHEN offer besides CNC machining?
JIERCHEN supports the full development path: SLA 3D printing for early validation, CNC machining for functional testing, silicone and vacuum casting for pilot runs, and steel-mold injection molding for production scale. See CNC materials and surface finishing options.
Talk to JIERCHEN About Your Project
Send your CAD files or drawings and get a quote from an ISO 9001-certified CNC prototyping partner with 41 years of manufacturing experience in Taiwan.
Get a Free QuoteJIERCHEN Enterprise Co., Ltd. · No. 5, Alley 19, Lane 49, Guoqing Rd., Banqiao Dist., New Taipei City 220, Taiwan · +886-2-7728-5122 · sales@jierchen.com.tw · Mon–Fri 08:30–17:30
