Custom Mold Manufacturing & Precision Tooling
At Temco Rubber, we design, engineer, and machine high-precision industrial molds for elastomeric and silicone parts. By leveraging advanced CNC centers and EDM systems, we provide in-house multi-cavity tooling solutions built to optimize material flow and maximize production yield.
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Industrial Tooling Capabilities
We build optimized, high-durability molds designed for various polymer molding methods, guaranteeing minimal flash, strategic venting, and maximum lifecycle efficiency.
Liquid Silicone Rubber (LSR) Injection Tooling
LSR mold manufacturing demands extreme precision and thermal management. Our LSR molds integrate specialized cold runner blocks and hydraulic needle-valve gating systems. This allows for direct gating into the cavity, enabling fully automated, waste-free, and flash-free component production.
- Integrated cold runner systems with water-cooling channels
- High-cavitation designs supporting up to 256 cavities
- Engineered with precise thermal barriers between cold decks and hot cavities
- In-house manufacturing of micro-inserts for textured or superhydrophobic surfaces
Compression & Transfer Molds
For processing high-consistency rubber (HCR) and industrial elastomers, we manufacture high-capacity compression and transfer molds. Transfer molds utilize integrated ITM pots and runner manifolds to distribute material evenly into closed cavities. Compression molds feature precision-ground land areas to ensure clean parting lines and simple deflashing.
- Precision-machined steel plates with optimized overflow channels
- Integrated transfer plunger and runner systems for balanced cavity filling
- Designed to resist severe clamping forces and hydraulic pressures
- Engineered for rapid demolding with manual or automated ejection plates
Tooling Materials & Engineering Specifications
We select premium tool steel and aluminum alloys based on your production volume, chemical corrosiveness, and cycle-time expectations.
Premium H13 Tool Steel
High-chromium hot-work steel providing outstanding resistance to thermal cracking and wear. Best suited for high-volume, abrasive compounds and medical LSR injection tooling.
Pre-Hardened P20 Steel
A versatile alloy providing excellent dimensional stability and uniform hardness. Highly cost-effective for medium-to-large compression molds and complex industrial plates.
High-Conductivity Aluminum
Specialized aluminum alloys featuring superior heat transfer and lightweight handling. Ideal for rapid prototyping, low-pressure molding systems, and accelerated cycle trials.
Advanced Surface Treatments
Available with Chrome plating, Teflon coatings, and chemical vapor deposition (CVD) to lower demolding friction, prevent residue build-up, and extend tool lifespans.
CAD/CAM Tooling Engineering & Simulation
Every successful production campaign depends on a perfectly engineered tool. Our in-house design team works directly from your 2D and 3D drawings (IGES, STEP, DXF) to perform comprehensive Design for Manufacturing (DFM) reviews. We optimize the cavity layouts, position parting lines to minimize flash, and locate venting channels to prevent burn marks or voids.
Using advanced Finite Element Analysis (FEA), we model polymer flow, shrinkage rates, and clamp-force distribution. This ensures that the final mold operates smoothly without warpage or uneven compression, delivering parts that strictly adhere to ISO 3302-1 precision tolerances.
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The 7-Step Tooling Lifecycle
Our fully integrated vertical workflow ensures absolute quality control from raw steel stock to first-article approvals.
DFM Review
Analyzing part drawings for demoldability, draft angles, and wall thicknesses.
Tool Design
Creating 3D assembly models with gate locations, venting, and overflow grooves.
CNC Machining
High-speed milling of mold cavities and plates within microscopic tolerances.
EDM Cavitation
Using electrical discharge machining (EDM) to produce intricate ribs or sharp corners.
Mold Fitting
Manual polishing, blue-matching, and assembly of plates, ejectors, and slides.
Sampling & Trial
Running initial press trials to produce physical parts for dimensional evaluation.
QA Release
Inspecting first-article products using 3D scanners before tooling approval.
Frequently Asked Questions
Find answers to technical questions about rubber and silicone mold manufacturing from our toolmaking specialists.
Explore Our Specialized Capabilities
Discover how our in-house engineering and materials division can optimize your custom production runs.