Metal Stamping Services in China — Progressive Die, 15T–400T, Up to 600 SPM
ISO 9001:2015 Certified | Progressive, Compound & Stage Die | Deep Drawing | Up to 600 SPM | In-House Die Design
Metal stamping uses a die and press to cut, form, or draw sheet metal into finished parts at high speed and volume. Progressive dies complete multiple operations in a single automated strip pass.
We design and manufacture all stamping tooling in-house, operating presses from 15T to 400T at speeds up to 600 strokes per minute — for volumes from 100,000 to 50,000,000+ pieces per run. We also offer compound die, stage die, and deep drawing (up to 3:1 draw ratio) for housings, connectors, and structural brackets.
✔ ISO 9001:2015 Certified
✔ Progressive, Compound & Stage Die Capability
✔ 15T–400T Press Range
✔ Up to 600 SPM High-Speed Stamping
✔ In-House Die Design & Manufacture
✔ Free Die Maintenance for Production Life
Core Metal Stamping Services — Progressive Die, Deep Drawing & Fine Blanking
High-Speed Custom Metal Stamping Services
High-speed presses operating at 200–600 SPM for ultra-high-volume production. Ideal for small, intricate components — electronic connectors, lead frames, and terminal pins. At 400 SPM, a single shift produces approximately 240,000 pieces.
Precision Progressive Die Metal Stamping
Progressive die stamping: a material strip passes through multiple stations in a single press — fully automated. Ideal for complex parts requiring high-volume, long-term production runs (100,000 to 50,000,000+ pieces) with minimal material waste.
Deep Drawing & Custom Metal Stamping Services
Deep drawing forms sheet metal into seamless hollow components where depth exceeds diameter — up to 3:1 draw ratio in a single draw. Ideal for industrial enclosures, automotive oil pans, stainless steel shells, and cylindrical housings for the medical and energy sectors.
Fine Blanking for Heavy-Duty Custom Metal Stamping Services
Fine blanking for parts requiring smooth, straight edges and extremely close tolerances — superior flatness and dimensional accuracy. We integrate coining to create detailed surface features or high-strength structural parts, eliminating costly secondary CNC machining.
Stamping Die Types — Selecting the Right Tool for Your Part
Die type selection determines the cost-per-part, minimum run size, and achievable part complexity for any stamping project. We manufacture all four major die types in-house and recommend the appropriate type during the DFM review stage based on your part geometry, required volume, and tolerance requirements.
Die Type | How It Works | Best Application | Production Volume | Dimensional Tolerance |
Progressive Die | Part advances through multiple stations in one die set. Each press stroke: blank, pierce, form, cut-off completed sequentially. Fully automated strip feed. | Electronic terminals, connector pins, lead frames, medical clips, spring contacts, washer assemblies | 100,000 to 50,000,000+ pieces per run. | ±0.05mm on blanked features; ±0.1mm on formed features |
Compound Die | Blanking and piercing completed simultaneously in a single stroke. Tightest concentricity between OD and ID features. | Precision washers, gaskets, flat blanks requiring simultaneous OD and ID accuracy | 5,000 to 500,000 pieces. | ±0.03mm OD/ID concentricity achievable |
Stage/Transfer Die | Parts transfer between individual die stations via robot or manual handling. Each station performs one operation. | Deep drawn housings, complex brackets, automotive structural parts with multiple bend and draw features | 5,000 to 500,000 pieces. | ±0.1mm to ±0.2mm on formed dimensions |
Single-Operation Die | One operation per stroke: blank only, pierce only, or form only. Simple tooling, fast to produce. | Prototype quantities before progressive die investment; simple flat blanks; R&D validation | 1 to 10,000 pieces. | ±0.1mm standard |
Our Stamping Processes — Technical Overview
Below are the 4 core stamping processes we run in-house — each configured for specific part geometries, volume ranges, and tolerance requirements. Our toolroom designs and manufactures all tooling, so process selection and die design are optimized together.
Precision Blanking & Piercing
Blanking and piercing define the perimeter geometry and internal features of stamped parts. Our toolroom maintains a dimensional library of standard punch and die sets — allowing us to begin prototype production on many standard feature sizes within days of drawing receipt.
For fine blanking requirements (smooth, square shear faces with no roll-over or break angle), we partner with certified fine blanking presses — appropriate for hydraulic valve discs, locking ratchet plates, and precision lock components.
High-Speed Progressive Stamping
High-speed presses operating at 200–600 SPM are configured for long-run progressive die production of small, high-precision components. Servo-controlled strip feeds maintain ±0.01mm pitch accuracy across the full die length — critical for terminal pin and connector applications where cumulative station error would cause out-of-position features.
High-speed progressive stamping is the lowest-cost per-piece method for volumes above 100,000 units. At 400 SPM, a single shift produces approximately 240,000 pieces — the standard process for electronic connector terminals, spring contacts, and medical clip components.
Deep Drawing Services
Deep drawing forms flat sheet metal into cylindrical, rectangular, or custom-profile hollow shapes by pressing a blank through a die with a punch. Draw ratio (height to diameter) determines how many press stages are required — our standard capability is up to 3:1 in a single draw.
We deep draw stainless steel 304/316L, aluminum 1050/3003/5052, copper C11000, and mild steel CR1008. Parts are produced on hydraulic and servo presses from 100T to 300T. Typical applications: battery cell cans, medical syringe body housings, motor end caps, and filter housings.
Complex Tooling: Bending, Embossing & Coining
Progressive and stage dies can incorporate secondary form features — bends, ribs, embossments, threads, and coined surfaces — in the same die set, completing the full part geometry in a single press pass without secondary operations. Our toolroom designs and manufactures these compound tools in-house using CAD/CAM programming with dimensional simulation.
Coined features achieve the tightest dimensional tolerances in stamping — coining can produce flat surfaces to ±0.01mm and stamped contacts to exacting force requirements.
Our Competitive Advantages in Metal Stamping Services
With over 10 years of export experience, we translate high-efficiency production and engineering precision into a sustainable cost advantage for our global OEM partners.
High Precision & Consistency in Metal Stamping
In-house Die Design: In-house die design and manufacture ensure the highest dimensional accuracy and repeatability for every stamped part.
OEM Excellence: Preferred partner for OEM metal stamping projects requiring strict tolerance control (±0.05mm) and superior surface finishes.
Flexible Capacity (15T – 400T Press Range): A diverse fleet of stamping presses from 15T to 400T offers scalability for both small-batch trials (1–10,000 pieces) and large-scale production (up to 50,000,000+ pieces).
Rapid Response: Standard lead time 3–7 days for urgent samples; production lead time 15–25 days depending on complexity and volume.
Supply Chain & Logistics for Global OEM Buyers
Service Network : Flexible logistics supporting global OEM customers with remote project management and English-speaking account managers.
JIT & Kanban Support: Just-in-Time (JIT) and Kanban services to optimize your production lines and minimize inventory costs.
Logistics Efficiency: Barcoding and labeling services for efficient material management and tracking throughout the export process.
Cost-Effectiveness at Volume: While the initial investment in stamping presses is higher, the long service life of our in-house tooling ensures affordable mass production of precision components.
Stamping Applications by Industry
We stamp precision metal components for 6 core industries — with material traceability, industry-aligned quality systems, and full documentation.
| Industry | Typical Stamped Parts | Materials | Key Requirements |
| Automotive & EV | Body reinforcements, seatbelt anchors, door hinges, stamped contacts, battery terminal plates | CRS 1008/1010, DP590, Cu C11000, SS 301 | IATF 16949 alignment; PPAP; high-volume progressive die; crash performance |
| Electronics & Telecoms | Terminal pins, lead frames, EMI shielding cans, RF connectors, spring contacts | Copper C17200, SS 301, SS 304, BeCu (Beryllium Copper) | High-speed progressive (400–600 SPM); tight feature tolerance ±0.05mm; plating compatible |
| Medical Devices | Surgical clip components, implant clips, diagnostic device contacts, instrument springs | SS 316L, SS 301, Ti Grade 2 | Biocompatible material; full MTR traceability; clean-room packaging on request |
| Industrial Equipment | Motor laminations, relay contacts, precision washers, mounting brackets, heat sink fins | CRS 1008/1010, SS 304, Al 1050 | Volume consistency; tight blanking tolerance; automated strip feed |
| Consumer Products | Appliance brackets, decorative hardware, furniture clips, door hardware | CRS 1008/1010, Galvanized Steel, Brass | Cosmetic surface; zinc or nickel plating; aesthetic burr-free edges |
| Energy & Renewables | Solar mounting clips, battery cell cans, busbar blanks, relay contacts | Al 3003/1050, Cu C11000, SS 304 | Corrosion resistance; conductivity; volume production |
Stamping Materials & Thickness Specifications
We work with high-quality industrial materials according to global standards (AISI, SAE, ASTM) — with material certifications (MTRs) available on request.
| Material | Common Grades | Thickness Range | Key Stamping Characteristics | Typical Applications |
| Stainless Steel | 304, 316L, 301, 201 | 0.1mm – 3.0mm | High spring-back; work-hardens during forming; requires lubrication and polished tooling | Medical clips, food equipment contacts, architectural components, marine hardware |
| Aluminum | 1050, 3003, 5052-H32, 6061-T4 | 0.3mm – 6.0mm | Excellent formability (5052/3003); lower spring-back than steel; anodizable finish | EV battery cans, electronic enclosures, heat shields, aerospace blanks |
| Mild Steel (CR) | 1008/1010 (AISI), DC01 (EN), SPCC (JIS) | 0.3mm – 10mm | Best formability and lowest spring-back; most cost-effective for high volume | Automotive bodies, appliance shells, general structural brackets |
| High-Strength Steel | HSLA 340/420, DP590, DP780, S420 (EN) | 0.5mm – 4.0mm | High spring-back; requires higher press tonnage; specialist tooling clearances | Automotive structural reinforcements, seatbelt anchors, crash components |
| Galvanized Steel | DX51D+Z (EN), S250GD (EN), G90 (ASTM A653) | 0.3mm – 3.0mm | Zinc coating; requires adjusted die clearance to avoid zinc flaking | Outdoor enclosures, HVAC components, structural brackets |
| Copper | C11000 (ETP), C17200 (Beryllium Copper) | 0.1mm – 3.0mm | Superior conductivity; excellent formability; high material cost | Electrical bus bars, relay contacts, battery terminals, RF shielding |
| Brass | C26000, C36000 (ASTM) | 0.1mm – 3.0mm | Good machinability and formability; attractive finish | Decorative hardware, valve components, precision connectors |
| Spring Steel | 1074 (AISI), 65Mn (GB), SK5 (JIS) | 0.1mm – 1.5mm | Very high spring-back; high hardness; specialist progressive tooling required | Spring clips, leaf springs, retaining rings, precision snap elements |
Frequently Asked Questions — Metal Stamping Services
Answers to Common Questions from OEM Buyers Sourcing Metal Stamping Services from China
We offer a full range of value-added services under one roof:
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In-house die design and manufacture
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Progressive die, compound die, stage/transfer die, and single-operation die
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Secondary operations: tapping, reaming, deburring, coining, embossing
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Surface finishing: zinc plating, nickel plating, powder coating, passivation
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Assembly: riveting, PEM nut insertion, sub-assembly
Every production lot runs under a locked Process Control Plan with in-process inspection at each stage. Key dimensions are verified on our Hexagon CMM with NIST-traceable calibration. We provide:
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FAI (First Article Inspection) reports
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Full dimensional inspection reports
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MTRs (Material Test Reports)
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RoHS/REACH declarations
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PPAP Level 3 documentation for automotive OEM programs
Press range: 15T to 400T. High-speed stamping: up to 600 SPM. Servo-controlled strip feeds maintain ±0.01mm pitch accuracy. At 400 SPM, a single shift produces approximately 240,000 pieces. We operate hydraulic, servo, and mechanical presses for progressive die, deep drawing, and high-speed connector stamping.
Send DXF, DWG, STEP, IGES, or PDF drawings to info@insidemetalfab.com or via our quote form. Include material, quantity, tolerance, and surface finish requirements. We return a detailed quotation with written DFM feedback within 2 working days. For new progressive die projects, we also provide a die cost estimate and tooling lead time.
Our MOQ is 1 piece for prototypes and small-batch trials. For progressive die stamping, we recommend a minimum of 5,000–10,000 pieces to amortize tooling cost. Production volumes up to 50,000,000+ pieces per run.
We stamp stainless steel (304, 316L, 301, 201), aluminum (1050, 3003, 5052-H32, 6061-T4), mild steel (1008/1010, DC01, SPCC), high-strength steel (HSLA 340/420, DP590, DP780, S420), galvanized steel (DX51D+Z, S250GD, G90), copper (C11000, C17200), brass (C26000, C36000), and spring steel (1074, 65Mn, SK5). Thickness range: 0.1mm to 10mm.
Prototype/sample lead time: 3–7 business days (urgent samples). Production lead time: 15–25 days depending on complexity and volume. New progressive die tooling: 3–5 weeks for design, manufacture, and first-article approval. DFM feedback and quote within 2 working days.
We manufacture all four major die types in-house:
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Progressive Die (100,000–50,000,000+ pieces)
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Compound Die (5,000–500,000 pieces)
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Stage/Transfer Die (5,000–500,000 pieces)
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Single-Operation Die (1–10,000 pieces)
Our engineers recommend the optimal die type during the DFM review stage based on your part geometry, required volume, and tolerance requirements
Yes. We produce prototype or first-article quantities, inspect them on our Hexagon CMM, and provide a Full Dimensional Inspection Report (FAI) for your approval before releasing to full production. Prototype lead time is 3–7 business days for urgent samples. For new progressive die projects, we also provide a die cost estimate and tooling lead time before committing to production tooling.
All materials are sourced from qualified suppliers with full Mill Test Reports (MTRs) — heat-number traceable from mill to finished part. Every order ships with MTRs, FAI reports, CMM inspection reports, and RoHS/REACH declarations as standard. PPAP Level 3 documentation is available for automotive OEM customers. For medical device programs, we provide full material certification and clean-room packaging on request.

