Your mold.
Our floor.
Zero runaround.

We design, machine, assemble, and trial injection molds, die-cast molds, and stamping dies - every step under our roof. Send your 3D drawing. Get back a production-ready mold.

ONE ROOF

One roof. Complete manufacturing.
From raw steel to finished mold.

18 Years experience
4-8 Weeks lead time
1 Set MOQ

Precision Mold Manufacturing

From STEP file to T0 sample — DFM, machining, EDM, assembly, trial all in-house.

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60+ Steel grades

Custom-Cut & Wholesale Steel

Cut-to-size or full bars. Same steel we trust for our own molds.

Browse steel grades
Mold steel supply
DFM Design for Manufacturability

Engineering review before tooling

Design analysis to catch issues before steel is cut — saving weeks and thousands.

Learn about DFM
DFM engineering drawing review
INDUSTRIES

Molds engineered for your industry

Not generic. Each industry brings its own steel, tolerance, and surface-finish demands.

Automotive

Die-cast & injection

Engine covers, lamp housings, EV battery trays. H13 ESR for thermal fatigue resistance.

Home Appliance

Large injection molds

Washing tubs, fridge liners, AC panels. 718H for rigidity at scale.

Medical

High-polish injection

Syringe barrels, respirator masks. S136 ESR for mirror finish and corrosion resistance.

Electronics

Precision injection

Phone frames, connectors, wearables. NAK80 for dimensional stability at micro-tolerances.

Packaging

Multi-cavity injection

PET preforms, bottle caps, thin-wall containers. High-cycle steel for 24/7 production.

Hardware

Progressive stamping dies

Fasteners, springs, brackets. DC53 / SKD11 for high-wear blanking and forming.

Don't see your industry?

Tell us about your part.
We'll tell you if we can mold it.

Start a conversation
How It Works

Your drawing → our floor → your mold

Five stages. Zero outsourced steps. Weekly progress updates.

01

Send Drawing

STEP, IGES, or XT. We analyze within 48 hours.

Project Inquiry & Drawings
02

DFM & Design

Manufacturability review, steel recommendation, 3D mold design.

Technical Review & Quotation
03

In-House Machining

CNC, EDM, wire-cut, heat treat, grind — all on our floor.

CNC Machining
04

Assembly & Trial

Benched by senior toolmakers. T0 trial with full data.

Inspection & Marking
05

Inspect & Ship

CMM, hardness, UT. Export-crated. Ready to run.

Packing & Shipping

CNC Machining

pre-machined to your drawings and tolerances.

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Deep Hole Drilling

Deep hole drilling service on request.

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Heat Treatment

Heat treatment service for mold steels.

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Wire Cutting / EDM

Wire cutting / EDM service for mold steels.

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Our Workshop

Workshop & Machining Equipment

Equipped with advanced machinery to ensure quality, precision, and consistency.

Large Gantry Milling Machine

Large Gantry Milling Machine

Steel Plate Edge Chamfering & Deburring Machine

Steel Plate Edge Chamfering & Deburring Machine

Four-Head CNC Precision Milling Machine for Mold Steel Plates

Four-Head CNC Precision Milling Machine for Mold Steel Plates

Heavy-Duty Horizontal Band Saw for Mold Steel Cutting

Heavy-Duty Horizontal Band Saw for Mold Steel Cutting

Heavy-Duty Vertical Band Saw for Mold Steel Plates

Heavy-Duty Vertical Band Saw for Mold Steel Plates

Gantry CNC Milling Machine for Steel Plate Machinin

Gantry CNC Milling Machine for Steel Plate Machinin

Precision Surface Grinder for Steel Blocks and Plates

Precision Surface Grinder for Steel Blocks and Plates

Heat Treatment Equipment for Mold Steel Blocks and Plates

Heat Treatment Equipment for Mold Steel Blocks and Plates

Wire EDM Machines for Precision Steel Components

Wire EDM Machines for Precision Steel Components

Precision Surface Grinding Machines for Small Steel Components

Precision Surface Grinding Machines for Small Steel Components

CNC Machining Centers for Precision Steel Components

CNC Machining Centers for Precision Steel Components

Manual Milling Machines for Precision Steel Components

Manual Milling Machines for Precision Steel Components

Die-Sinking EDM Machines for Precision Mold Steel Parts

Die-Sinking EDM Machines for Precision Mold Steel Parts

CMM and Measuring Equipment for Precision Steel Parts

CMM and Measuring Equipment for Precision Steel Parts

Assembly Workshop for Precision Mold Steel Components

Assembly Workshop for Precision Mold Steel Components

CNC Gantry Drilling and Milling Machine for Large Steel Plates

CNC Gantry Drilling and Milling Machine for Large Steel Plates

Our Edge

Why Choose Moldsteells?

Get a Quote Now
Your steel grade is chosen before your mold is cut.

We stock 60+ grades — P20, H13, NAK80, S136, 718H, and tool steels from ASSAB, Daido, and Buderus. Before machining starts, we match the steel to your resin, your shot count, and your surface finish. No "P20 will probably work."

DFM is not an upsell. It's step one.

Gate placement. Cooling layout. Parting line. Draft angles. Mold flow. You review. You approve. Then we machine. Every project, no exceptions.

One engineer. Drawing to crate.

The person who writes your DFM programs your CNC, schedules your EDM and stands next to your mold at T0. You call them directly. No salesperson. No "let me check with the team."

Data ships with your mold. Every time.

CMM report. Material cert with heat number. Hardness test. T0 samples. In the crate. You don't ask for it — it's how we close every project.

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FAQ

Frequently Asked Question

For more information, please contact us
What molds do you manufacture? +
Injection molds (thermoplastics, single to multi-cavity), die-cast molds (aluminum/zinc), and stamping dies (progressive, compound, transfer). High-polish optical-grade lenses to heavy automotive tooling — all under our roof.
Walk me through a project — drawing to delivery. +
Send 3D files → DFM report within 48h with steel recommendation → Mold design & mold flow → In-house CNC/EDM/heat treat/wire-cut → Assembly by senior toolmakers → T0 trial with full inspection data → Export packing. Weekly progress updates at every stage.
What tolerances can you hold? +
Cavity and core finishing to ±0.01mm. High-polish surfaces to SPI A1 / Ra ≤0.025μm. CMM dimensional inspection and hardness testing on-site — every measurement is verified before the mold leaves.
Do you provide DFM and mold flow analysis? +
Standard on every project. DFM covers parting line, gate type and location, ejection strategy, cooling layout, and steel selection rationale. Mold flow simulation recommended for thin-wall, optical, and complex parts — we run it before a single chip is cut.
What quality documents do you ship with the mold? +
CMM dimensional report, raw material MTR (ISO 17025 lab), hardness test certificate, T0 trial samples and process parameters. UT and MPI on request. EN 10204 3.1 standard for EU shipments.
Can you help me pick the right steel for my mold? +
This is what sets us apart. We stock 60+ grades — P20, 718H, NAK80, S136 ESR, H13 ESR, 8407, DIEVAR, DC53, SKD11, Cr12MoV, and more. Our engineers recommend based on your resin, production volume, surface finish, and budget. Not what's easiest to cut — what your mold actually needs.
What surface finishes can you achieve? +
Mirror polish (SPI A1/A2) for optical and medical parts, EDM textures (VDI 3400 reference), laser etching, and custom textures. S136 ESR cavities routinely polished to Ra 0.025μm for lens-grade molds.
What's your typical lead time? +
Standard single-cavity molds: 4–6 weeks. Complex multi-cavity or hot-runner molds: 8–12 weeks. Cut-to-size steel only: 3–5 working days. Milestone schedule at order confirmation. Rush options available on request.
Where do you ship from, and how is the mold packed? +
Dongguan, Guangdong — one of the world's largest mold manufacturing clusters. Sea freight (FCL/LCL) or air freight worldwide. Every mold: VCI anti-rust wrap + reinforced export plywood crate + container bracing. Arrives ready to install, not needing surface rework from transit.
What's your minimum order? +
1 mold. Single-set prototype to volume production — same team, same process, same quality standard throughout.
What payment methods do you accept? +
Bank Transfer (T/T), PayPal, Western Union, and Alibaba Trade Assurance for secure international transactions.
What if something goes wrong after delivery? +
One contact, one team. Every process — DFM, machining, heat treat, assembly — runs on our floor, so when an issue comes up, we trace it in hours, not weeks. If the root cause is ours, we make it right.
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