Mold Tooling Workshop and Production Capability
We provide Tooling Service. Our capacity for building complex molds up to 30 tons and sizes up to 8500 x 1000 x 8500 mm | Precise molds with tolerances +/- 0.01mm or less | One million shots is guaranteed.
Plastic Mold Making
Getting a perfect part begins with a good mold, and a well-made mold requires great accuracy. So, making a good mold is crucial to the success of a project. With a good mold, parts can be made consistently and with quality. But, without a good mold, processing mistakes can occur and be extremely costly.
We have been a plastic mold manufacturer since 2003. As an experienced mold making industry, we specialize in precision molds & dies manufacturing services and want to bring you the highest quality molds in order to manufacture parts that meet all of your projects' tolerance and timeliness requirements. We offer a full 1 million shot tooling guarantee on our mold tooling. We work with a lot of different industries, including automotive, household, medical parts, industrial products, robotics, consumer products, packing, and more.
Tooling Service
Our capability for mold tooling can achieve a monthly production capacity of 50-60 molds with sizes up to 8500 x 1000 x 8500mm. We are capable of building complex molds up to 30 tons and Precise molds with tolerances +/- 0.01mm or less. Below are our mold-making capabilities and experience.
- Plastic Injection Molds
- Shuttle Molds
- Insert Molds
- Expandable Molds
- Interchangeable Molds
- Two Shot Injection Molds
- Overmolds
- Stack Molds
- Hot Runner Molds
- Unscrewing Molds
- Rapid Prototype
MOLD MAKING SERVICE
We offer a full 1 million shot tooling guarantee on our mould tooling and serve many sectors including medical, electronics, packaging, consumer and automotive.
Our after sale service center in Mexico is being setup to handle engineering change or some unexpected mold issues. We are capable of building large molds up to 10 ton and precise molds with tolerance as small as ±0.02mm in house.
Our Capacities and Experiences:
- Shuttle and Insert Molds
- Expandable and Interchangeable molds
- Two Shot Injection Molds/Overmolds
- Hot Runner Molds
- Unscrewing Molds
- Die-casting
- Stack mold
- Plastic Injection Mold
- 3D printing / Stress Analysis
Our Further Range of Services:
- Award-winning plastic injection mold toolmaking
- Design for manufacture principles
- Complex tooling solutions
- Mold tools for medical, electronics and packaging
- Twin shot tools / two shot tools / 2K tools
- 5-axis machining
- Innovative wire erosion strategies
- Component design full consultation service
- Helping your develop ideas into design ready for production
- Reverse engineering
How the mold manufacturing process moves from design to trial
Mold fabrication is a controlled sequence rather than a single machining operation. At HS Molds, the manufacturing route starts with the approved part data and mold design. Steel preparation, rough machining, heat treatment where required, precision machining, EDM, fitting, polishing, assembly, and mold trial are planned around the part geometry and the agreed inspection points.
The sequence matters. Machining too much steel before the critical dimensions and shrinkage assumptions are reviewed can make later correction difficult. Leaving controlled steel-safe areas gives the tooling team room to tune shutoffs, fits, and part dimensions after trial results are measured.
Core mold fabrication steps
1. Design and manufacturing review
The team reviews the parting line, gate and runner approach, cooling layout, ejection, slides or lifters, mold steel, and measurable acceptance requirements before steel is released.
2. Rough and precision machining
CNC milling establishes the main mold geometry. Grinding, wire cutting, and EDM are selected for inserts, slots, corners, electrodes, and features that cannot be produced efficiently in one milling setup.
3. Fitting and mold assembly
Core and cavity components, guide elements, ejector systems, slides, and cooling circuits are fitted and checked. Contact surfaces and moving actions must work together before the first molding trial.
4. Trial, measurement, and correction
Trial parts are checked against the drawing and functional requirements. Results are used to adjust molding conditions or make controlled tooling corrections before the mold is approved for production.
What is checked during mold manufacturing?
Inspection is placed throughout the build, not left until the mold is complete. Typical checkpoints include incoming steel identification, electrode and insert dimensions, core-to-cavity alignment, shutoff contact, cooling-channel integrity, moving-component travel, and the dimensions and appearance of trial parts. The exact record and sampling plan depend on the drawing and project requirements.
A reliable mold manufacturing process connects these checks to the intended production conditions. Material behavior, expected cycle, cosmetic surfaces, tolerance stack-up, and maintenance access all affect whether the tool can repeatedly produce an acceptable part.
From mold trial to production release
A mold trial is used to verify filling, packing, cooling, ejection, dimensions, and visible defects under documented process conditions. Flow lines, flash, sink, warpage, short shots, and dimensional variation may point to a process adjustment, a tooling correction, or a part-design issue. The engineering, tooling, molding, and inspection teams review the same evidence before release.
See the engineering workflow Review injection molding capability See manufacturing quality control
Frequently asked questions
What is the mold manufacturing process?
The mold manufacturing process converts an approved part and tool design into an assembled, tested production mold. It normally includes design review, steel preparation, CNC and EDM work, grinding or wire cutting where needed, fitting, polishing, assembly, mold trial, inspection, and controlled correction.
Why is a mold trial required before production release?
A mold trial verifies how the tool fills, cools, ejects, and produces the required dimensions and appearance under actual molding conditions. Trial evidence separates process adjustments from tooling or part-design corrections.
Which inspection points are used during mold fabrication?
Inspection points can include mold steel identification, machined inserts and electrodes, core and cavity alignment, shutoffs, cooling circuits, moving actions, and measured trial parts. The drawing and project requirements determine the final inspection plan.