Dongguan Longkun Mold Co., Ltd.

Precision Injection Tooling for Medical, Interconnect and High-Reliability Industrial Components

DFM support, precision mold design and manufacturing, mold trials, tooling documentation, spare parts and engineering support for demanding plastic components.

Medical tooling Interconnect tooling High-reliability industrial tooling DFM feedback Mold trials & verification
NDA-ready engineering support Built for dimensional stability Tooling documentation available
High-end precision machining and connector mold components
Automotive connector products with precision terminals Automotive connector products
2006 established precision mold manufacturing experience
Wire EDM P/G & J/G Mirror EDM High-speed CNC
Established Precision mold manufacturing since 2006
Team 80-100 manufacturing and technical personnel
Facility Approximately 3,000 m² production area
Quality System ISO 9001 certified quality management

Focused Positioning

A precision tooling partner between customer R&D and production molding teams.

Longkun Precision supports customers with DFM feedback, precision injection mold design and manufacturing, mold trials, dimensional verification, spare parts, and engineering support for demanding plastic components.

The website focuses on tooling engineering for medical, interconnect, and high-reliability industrial applications where confidentiality, repeatability, dimensional stability, and documentation matter.

Best-fit RFQs Medical plastic component tooling, connector and interconnect tooling, industrial and instrument tooling, mold components, spare parts, and tooling improvement projects.

Target Industries

Three application areas for high-reliability plastic component tooling

Precision tooling for medical plastic components
A

Medical Plastic Component Tooling

Surgical instrument plastic components, locking features, protective covers, diagnostic and laboratory equipment parts.

NDA-based project review
High-reliability connector tooling
B

Interconnect & Connector Tooling

High-reliability connector housings, insulation parts, insert molding tools, precise inserts, and multi-cavity consistency.

Built around repeatability
Industrial and instrument plastic tooling
C

Industrial & Instrument Tooling

Sensor housings, automation components, machine vision structures, laboratory instruments, and fluid connector parts.

Engineering communication first

Tooling & Engineering Scope

Practical capabilities that support demanding plastic component programs

Core Capabilities

Engineering support from drawing review to verified tooling

EDM and wire cutting equipment CNC machining equipment
DFM feedback

Review wall thickness, shrinkage, deformation, undercuts, parting lines, tolerance risks, material choice, and mold concept before cutting steel.

Precision mold design and manufacturing

Support complex sliders, precision inserts, multi-cavity layouts, insert molding tools, and repeatable mold construction.

Trials, verification and spare parts

Support mold trials, basic dimensional verification, tooling documentation, spare parts, maintenance, and engineering changes.

Engineering Workflow

Customer drawing to tooling delivery and ongoing support

01

Drawing & NDA Review

Review 2D/3D drawings, application requirements, critical dimensions, materials, and confidentiality needs.

02

DFM Feedback

Identify moldability risks around wall thickness, shrinkage, deformation, undercuts, fit, and repeatability.

03

Tooling Proposal

Confirm mold concept, cavity approach, insert and slider strategy, steel work, inspection points, and lead time.

04

Mold Manufacturing

Machine, EDM, grind, fit, assemble, and inspect precision mold components and complete tooling.

05

Trial & Verification

Support T1/T2 trials, dimensional checks, issue tracking, and engineering adjustment before tooling release.

06

Tooling Support

Provide spare parts, maintenance support, change management, and ongoing engineering communication.

Inspection laboratory and measurement equipment

Quality & Inspection

ISO 9001 quality control for critical mold dimensions and repeatability

  • ISO 9001 certified quality management system.
  • CMM inspection with Mitutoyo / ZEISS equipment.
  • Optical projectors, Nikon tool microscopes, and high-precision optical measurement systems.
  • Profile measurement, flatness inspection, high-temperature testing, and pull-force testing.
  • FAI, CMM reports, material certificates, and CoC available according to project requirements.

RFQ Support

Request a tooling review for your plastic component project

Please include 2D/3D drawings, application, material, annual volume, expected cavities if known, project stage, tolerance requirements, inspection needs, and target timing. NDA-based drawing review is available.

2D / 3D drawings Material and application Annual volume and cavities NDA option available
Direct business contact Business email: sales@longkunprecision.com WhatsApp: +86 181 2780 2608 WeChat: +86 181 2780 2608
Step 1 Contact Information
Step 2 Project Requirements
Step 3 Technical Details
Drawing / File Upload
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Upload one drawing package up to 10MB. For multiple or larger files, submit the RFQ first, then send a download link or files directly to sales@longkunprecision.com.

The form will send your RFQ directly to sales@longkunprecision.com.