Engineering lens · 01
DFM before steel
Review wall sections, draft, gates, ejection, material, and volume while changes still live in CAD.
Mold manufacturer · Tainan, Taiwan · Since 1989
Plastic injection molding, from drawing to production.
Engineering connects DFM review, mold manufacturing, two-shot molding, inspection, and assembly through one accountable team in Taiwan.
1989
founded
80–850T
press range
ISO 9001
quality
IATF 16949
automotive
ISO 13485
medical
Injection molding capabilities
Choose the molding and tooling path that fits your part.
Review part geometry, material, expected demand, tooling, molding, finishing, and assembly with one engineering team.
Multi-material molding
Two-Shot (2K) Molding
Combine two materials or colors in a coordinated molding cycle for parts that need an integrated grip, seal, interface, or appearance. Material compatibility, interface geometry, and validation are reviewed before tooling.
2-MATERIALPA / TPE / PCPROGRAM-SPECIFIC
Explore two-shot molding
No usable CAD?
Review reverse engineeringPhysical Part → 3D CAD / STEP
Provide a physical sample and known critical dimensions. LongTeam can reconstruct controlled 3D CAD and a STEP deliverable, then connect the model to DFM and tooling.
Mold Design & Manufacturing
Connect DFM, mold design, tool manufacturing, trials, and production changes.
Custom Injection Molding
Match part geometry, resin, tooling, and expected demand to an 80–850T press range.
Insert & Overmolding
Integrate metal inserts, soft-touch surfaces, seals, and multi-material features.
Engineering insights
View all insightsEngineering guides for decisions before and after tooling.
Review DFM, materials, tooling, qualification, sourcing, and production questions—then connect the topic to the relevant LongTeam capability.
Technical Guide10 min readAug 27, 2025
What Is Plastic Injection Molding? Process, Tooling, and Production Guide
Understand how plastic injection molding works and which material, DFM, tooling, process, and quality decisions shape a production program.
Use this guide when you need to decide whether injection molding fits your part and which inputs must be resolved before tooling.
Review the engineering guide
Technical Guide9 min read
Reverse Engineering a Plastic Part: From Physical Sample to STEP File and Injection Molding
Use this guide when: a physical plastic part exists but controlled CAD, drawings, or production records are missing.
Review guide
Technical Guide10 min read
First Article Inspection (FAI) for Injection Molded Parts: OEM Buyer's Complete Guide
Review guideThe engineering passport
One part. One connected engineering path.
Engineering work is useful when it clarifies a tooling decision, identifies rework risk, or makes production evidence easier to review. Decisions stay connected from DFM through shipment.
Engineering lens · 02
Tooling that carries the decisions
Keep mold design, cooling, cavitation, and trial learning attached to the production tool.
Engineering lens · 03
Data-assisted quality
Use production and dimensional signals to reveal trends; engineers remain responsible for every decision.
Program route · 6 connected stages
Explore mold design and manufacturingFrom drawing to finished part.
- 01
Drawing + DFM
Geometry, material, volume, and production risks.
- 02
Mold design
Parting line, gates, cooling, ejection, and finish.
- 03
Tool manufacturing
Production steel built with a short engineering loop.
- 04
Trial molding
T0/T1/T2 learning closes tool-to-part gaps.
- 05
Production
Validated settings transfer into repeatable molding.
- 06
Finished part
Inspection, finishing, assembly, and shipment.
Industry programs
Molding support for automotive, medical, consumer, and electronics teams.
Start with your application, drawing, material, documentation, and qualification requirements. Each program is reviewed against its own risks and acceptance criteria.
Inside LongTeam · Tainan, Taiwan
See where your molds and molded parts are made.
Tour our production floor and review representative two-shot, automotive, medical, and in-house tooling work.
Company proof
A Taiwan molding partner with facts you can verify.
LongTeam Industrial Co., Ltd. (隆廷實業有限公司) is a plastic injection molding and mold manufacturer in Tainan, Taiwan, founded in 1989. Tooling, molding, finishing, and assembly are managed through one manufacturing organization.
Review the company profile1989
founded
80–850T
press range
3
management systems
5
named export regions
ISO 9001
Quality management
IATF 16949
Automotive programs
ISO 13485
Medical programs
Procurement teams should confirm current certificate scope and expiry during supplier qualification. Program-specific documentation and regulatory requirements are agreed before production approval.
Next step
Start with your drawings and critical requirements.
Share the files you have, material, expected demand, application, and acceptance criteria. LongTeam will clarify the engineering, tooling, and quotation scope.