An injection molding factory, not a trading office
About
The factory has run injection molding since 1989, first as Tai Cheng Plastic Co., Ltd., and has traded as GSUN Plastic Co., Ltd. since 2000. It operates its own molding plant at No. 8, Park 5th Rd., Taiping District, Taichung City. The address below is the production site, not a registered office.
What we do and what we do not do
GSUN produces plastic parts to customer drawings, samples or existing molds. We do not hold a catalogue of standard models for resale. Every part shown on this site was made for a specific customer programme. Enquiries are declined, or returned for more information, when the material does not meet the applicable regulation or the requirement is incomplete.
Work covers tooling arrangement, injection molding, secondary operations and assembly. Where a step is carried out by a partner shop rather than in-house, that is stated per project so a buyer can assess the supply chain accurately.
Order routes accepted
Listed in the order GSUN prioritises.
- 1 · New tooling and production a new part from drawing or concept, tooled and taken into production. Runs below 1,000 pcs are accepted and quality control is not reduced for them.
- 2 · Reverse engineering a finished sample or an existing part with no drawing is measured, rebuilt and tooled.
- 3 · Mold transfer and production your existing mold is transferred here, assessed, trialled and run.
- 4 · Trial molding and production on customer molds trial shots, sample approval and repeat production on a tool you supply.
Three kinds of buyer, three ways of working
Overseas brand owners
Products developed to the brand's own requirement: you bring the concept or drawing, GSUN engineers it into a moldable part, tools it and produces it under your brand.
Overseas buyers come mainly from the hand tool, stationery, metal products and furniture industries.
Importers and distributors
Production to your product specification and order requirement, with packing and labelling to the specification you supply.
Trading companies
OEM manufacturing for export supply: GSUN produces to the end customer's drawing or sample and ships to the trading company's order.
Injection machines
Eight injection machines from 50 to 210 t, every one fitted with a take-out robot. Shot weight, tie-bar spacing and mold thickness for the largest machine are listed on the Capabilities page under Molding envelope.
| Machine | Clamping force | Units | Take-out robot |
|---|---|---|---|
| 50 t machine | 50 t | 1 | Fitted |
| Hwa Chin HC-120 | 120 t | 1 | Fitted |
| Hwa Chin HC-160 | 160 t | 4 | Fitted |
| Hwa Chin HC-210 | 210 t | 2 | Fitted |
Machine count and tonnage range as stated by the factory, 2026.
Ancillary equipment
Dryers, mold temperature controllers and chillers decide whether a hygroscopic engineering resin such as PA or PC can be processed reliably. The plant runs the following units alongside the eight machines.
| Equipment | Units | Used for |
|---|---|---|
| Material dryers | 8 | One per machine; drying of hygroscopic resins before molding. |
| Mold temperature controllers | 2 | Mold temperature control on programmes that need it for dimensional stability or surface finish. |
| Chiller | 1 | Cooling water circulation for mold and machine. |
| Take-out robots | 8 | Automatic part removal on every machine, which also protects cosmetic surfaces from handling damage. |
ISO 9001:2015, certified since 2020
The ISO 9001:2015 certificate below is transcribed from the certificate published by GSUN. GSUN also states compliance with REACH and RoHS.
| Standard | ISO 9001:2015 Quality Management Systems |
|---|---|
| Certificate holder | GATHER YANG PLASTIC LTD., No. 8, Park 5th Rd., Taiping Dist., Taichung City 411008, Taiwan (production site; the registered address is No. 17, Zhongxing E. Rd.). |
| Certificate number | 26-A-0725 Rev.0 |
| Issuing body | Global Inter Certification (GIC), UAF accredited (Certification Body No. CB-MS-12771), IAF MLA member |
| Initial issue / re-issue | 7 August 2020 / 19 June 2026 |
| Valid until | 6 August 2029 |
| Scope on certificate | Manufacturing of plastic injection products (IAF code 14) |
| REACH | Compliance stated. |
| RoHS | Compliance stated. |
Company timeline
Key dates in GSUN's history.
| Year | Milestone |
|---|---|
| 1989 | Injection molding begins as Tai Cheng Plastic Co., Ltd. |
| around 1993 | Overseas export business begins |
| 2000 | GSUN Plastic Co., Ltd. established; the business has traded under this name since |
| 2020 | ISO 9001:2015 certification obtained |
| 2026 | ISO 9001:2015 certificate re-issued, valid until 6 August 2029 |