Tooling & Sampling Services

From First Sketch to Perfect Sample

Industrial-grade mold engineering and precision sampling under one roof. We turn your 3D files into production-ready silicone parts with ±0.1mm tolerance and lead times as short as 7 days.

7-15
Days Sampling
±0.1mm
Tolerance
500+
Molds / Year
Mold design and sampling workshop
01 · Mold Design

Engineering-Grade Mold Design Services

Our in-house engineering team delivers precision mold designs optimized for silicone injection. Every project begins with a thorough DFM (Design for Manufacturing) analysis to eliminate production risks before steel is cut.

  • 3D parting line analysis & gate optimization
  • Mold flow simulation for shrinkage & warpage
  • Multi-cavity & family mold layout planning
  • DFM report delivered within 48 hours
Submit your 3D files
CAD and DFM mold analysis
Custom mold manufacturing
02 · Custom Tooling

Custom Mold Manufacturing

From single-cavity prototype molds to high-output production tooling. We machine with precision CNC, EDM, and wire-cut equipment using premium steel grades for extended tool life.

S136 / NAK80 Steel

Hardened, mirror-polish ready for premium finishes

500K+ Shot Life

Production molds engineered for mass volume

15-25 Day Lead Time

From design freeze to T1 sample

Multi-Cavity Ready

2 to 64 cavity layouts available

03 · Rapid Prototyping

Rapid Prototyping Services

Validate your design before investing in production tooling. We offer multiple prototyping routes tailored to your timeline and budget.

3D Printed Samples

Appearance and fit validation in 3-5 days using SLA / SLS technologies.

3-5 Days

Hand-Carved Soft Molds

Real silicone samples with target hardness and feel for functional testing.

7-10 Days

Pilot Steel Molds

Low-cavity production-grade tooling for pre-launch validation runs.

12-18 Days
04 · Sample Confirmation

Sample Confirmation Workflow

A transparent, step-by-step approval process to guarantee your sample matches expectations before mass production.

01

T1 Sample

First shot off the tool. Dimension & appearance report included.

02

Review & Feedback

Client inspects, provides written feedback on dimensions, finish, color.

03

T2 / T3 Revision

Mold refinement & parameter tuning until spec is met.

04

Golden Sample Sign-Off

Approved sample sealed & archived as mass-production reference.

05 · Mold Modification

Mold Modification & Optimization

Design evolution is part of the journey. Our mold shop handles revisions, cavity additions, and performance tuning quickly--keeping your project on schedule even when specifications change.

A
Dimensional Adjustments

Fine-tune wall thickness, radii, and fit without re-making the tool.

B
Surface Finish Changes

Textures (VDI/MT), polishing grades, and logo engraving updates.

C
Cycle Time Optimization

Cooling & venting improvements that reduce unit cost.

Mold modification and optimization
06 · Mold Ownership

Mold Ownership & Secure Storage

Your tooling, your IP. We provide clear contractual ownership and professional long-term storage in climate-controlled facilities.

Full Client Ownership

Once tooling is paid, you own 100% of the mold with signed ownership documents and NDA protection.

Climate-Controlled Storage

Molds stored in temperature & humidity controlled warehouse. Anti-rust maintenance every 6 months at no cost.

Transparent Documentation

Each mold has a traceable file: shot count, maintenance log, condition report--available upon request.

Small batch pilot production
07 · Small Batch Trial

Small Batch Pilot Production

Bridge the gap between sample and mass production. Our pilot runs (500-5,000 pcs) help you validate packaging, logistics, and market response before committing to full-scale orders.

500+
Minimum Pilot MOQ
10-14
Day Lead Time
100%
QC Inspection
SOP
Documented Process
08 · Equipment & Team

Mold Shop Equipment & Technical Team

A fully integrated mold facility backed by seasoned engineers with 10+ years of silicone-specific experience.

12+
CNC Machining Centers
8
EDM & Wire-Cut Machines
25+
Mold Engineers
10 yr
Avg. Team Experience

Core Equipment

  • High-speed 5-axis CNC machining centers
  • Sodick EDM & precision wire-cut equipment
  • CMM & optical measuring systems
  • 32 solid + 32 liquid silicone injection machines

Technical Capabilities

  • UG, Pro/E, SolidWorks, Moldflow software suite
  • LSR, HCR & two-shot molding expertise
  • Overmolding on plastics, metals & fabrics
  • Full ISO 9001 process documentation
09 · Start Your Project

Submit Your Tooling & Sampling Request

Share your project details and 3D files. Our engineering team will respond within 24 hours with a DFM analysis and tooling quote.

Phone / WhatsApp
+86 134 1898 3587
Email
edwin@gd-yums.com
Factory
Liaobu Town, Dongguan, Guangdong, China

Project Details

All information is kept strictly confidential under NDA.

By submitting, you agree we may contact you regarding your inquiry. NDA available on request.