Progressive Die Heavy Stamping — On 45 to 110 Ton Presses
Heavy progressive die stamping produces large, thick-gauge precision metal parts that lighter presses cannot handle. ISTAMPING runs this work on three new-energy presses rated 45 to 110 tons, with in-house progressive tooling, automated coil feeding, and quality systems certified to IATF 16949:2016.
- Heavy-tonnage press fleet
- Wide material and gauge range
- Precision die positioning
- In-house tool room
- Managed finishing and plating
Fast Engineering ResponseNDA ProtectedSTEP / IGES / X_T / DWG
Trusted Tier-1 & OEM Standards:
PROCESS RISKS WE PREVENT
Progressive Die Heavy Stamping: Risks We Engineer Out
Recurring failure modes seen in incoming RFQs for progressive die heavy stamping — and how each is prevented on our line.
01
Flatness and warpage on large-area parts
Our Solution
Big blanks twist as internal stresses release during shearing and forming. Controlled stripping, leveled die sections and coining steps hold flatness, verified with CMM and optical measurement before the lot ships.
02
Springback on thick-gauge bends
Our Solution
Thick steel and stainless springs back hard after forming. Overbend compensation is tuned from first-article measurements, and coining locks critical angles, with the die adjusted in-house on our own presses.
03
Die deflection and tonnage balance at 45-110 tons
Our Solution
Large dies under full tonnage can deflect and shift station alignment. Stations are balanced in die design, the die is tried out on the production press, and die protection systems stop the press the moment a dimension drifts.
SERVICE SCOPE & CAPABILITIES
Progressive Die Heavy Stamping: What We Cover
Heavy progressive die stamping produces large, thick-gauge precision metal parts that lighter presses cannot handle. Three new-energy presses rated 45 to 110 tons run in-house progressive tooling with automated coil feeding under an IATF 16949:2016 quality system.
Capabilities
- Heavy-tonnage press fleet
- Wide material and gauge range
- Precision die positioning
- In-house tool room
- Managed finishing and plating
Applications
- Busbars and power distribution
- Brackets and mounting hardware
- Wire and cable connectors
- Solar mounting structures
- Structural power components
Equipment
- Press Rating
- Workshop
- Applications
Process
- Piloting
- Piercing
- Blanking
- Forming and coining
- Cutoff and exit
DFM & ENGINEERING SUPPORT
Design for Manufacturability, Built In
Before tooling starts, our engineers review your drawing for material, tolerance, bend, and volume economics — and lock the process that will hold it across millions of strokes.
What We Review in Your Drawing
Flatness and warpage on large-area parts
Big blanks twist as internal stresses release during shearing and forming. Controlled stripping, leveled die sections and coining steps hold flatness, verified with CMM and optical measurement before the lot ships.
Springback on thick-gauge bends
Thick steel and stainless springs back hard after forming. Overbend compensation is tuned from first-article measurements, and coining locks critical angles, with the die adjusted in-house on our own presses.
Die deflection and tonnage balance at 45-110 tons
Large dies under full tonnage can deflect and shift station alignment. Stations are balanced in die design, the die is tried out on the production press, and die protection systems stop the press the moment a dimension drifts.
What Our DFM Review Checks
Bend radii
Inside radius held at R≥1.0t on spring tempers; tighter bends flagged for anneal or grade change before die design starts.
Holes & cutouts
Hole diameter ≥0.8t, pushed to 0.6t only with hardened punch steel; thin-gauge cutouts checked for tear-out.
Burr & edge quality
Burr height held under 0.05 mm so parts mate flat in assembly and plating adheres at the edges.
Tolerance & plating impact
Critical features piloted to ±0.005 mm; plating thickness (gold 2-8 µm, tin/zinc 5-12 µm) compensated in die design.
Get a DFM Review of Your Part
Send us your 2D/3D drawing — engineering runs a free DFM analysis and pricing follows the review.
STEP / IGES / X_T / DWG / PDF
TECHNICAL CAPABILITIES
Progressive Die Heavy Stamping: Specifications & Equipment
Part Specifications
| Specification Parameter | Automotive & EV Standard | High-Precision Custom |
|---|---|---|
| Part Thickness | Up to 6.0 mm (heavy gauge) | Per drawing |
| Max Part Size | Up to 300 mm | Per drawing |
| Tolerance | ±0.05 mm | Per drawing |
| Materials | Steel, stainless, aluminum, copper alloys | Per drawing |
Press & Equipment
Press Rating
45 to 110 tons
Workshop
New-energy stamping workshop
Applications
Busbars, brackets, connectors
Production Process
Piloting
Pilot holes locate the strip at the die entry so every station references the same datum.
Piercing
Piercing stations cut holes and internal features while the strip stays captive in the die.
Blanking
Blanking trims the outer profile and separates the finished part from the strip web.
Forming and coining
Bending, forming and coining shape thick-gauge bends and lock critical angles against springback.
MATERIALS & COMPLIANCE
Materials We Stamp & Compliance Documents
Every program ships with material traceability and the quality documents buyers need for automotive and EV supply chains.
Brass
Common Alloys
Finishing
Copper
Common Alloys
Finishing
Phosphor Bronze
Common Alloys
Finishing
FULL MATERIAL RANGE
Stamping on More Than These Alloys?
Our coil inventory and in-house die experience cover the full precision-stamping material range — send the grade and gauge, and we confirm stampability before quoting.
Stamping on Your Alloy or Coating?
Send the grade, gauge and part drawing — we confirm stampability, die and feed design, and quote on 25–110T presses at ±0.005 mm.
MTC / CoC / RoHS available per lot
QUALITY ASSURANCE & INSPECTION
In-House Quality Lab, Verified on Every Lot
IATF 16949:2016 certified with CMM, optical measurement and 100% dimensional inspection at press speed.
Inspection HardwareIn-House Quality Lab
- CMM & optical measurement for flat and 3D parts
- In-line vision systems inspecting at press speed
- SPC on critical features to catch drift as a trend
Quality StandardsIATF 16949:2016 Certified
- IATF 16949:2016 automotive quality management
- ISO 14001:2015 environmental management
- PPAP documentation for automotive & EV programs
TraceabilityFull Lot Traceability
- First-article inspection against the drawing
- Lot-level material traceability back to the coil
- Inspection records on every shipment
Talk to Our Engineers About Quality Documentation
Tell us what your project requires, and our team confirms which inspection and material documentation can be included with your quote.
INDUSTRY CASES
Case Studies for Progressive Die Heavy Stamping
Aug 28 · 7 min read
EV Busbar Case Study: Battery Pack Interconnects
High-volume busbar stamping for EV battery pack interconnects — tolerance, plating and delivery evidence.
Aug 28 · 7 min read
Progressive Die Case Study: Automotive Terminal Program
A multi-million-piece terminal program run on progressive dies with SPC and PPAP evidence.
Aug 28 · 16 min read
EV Charging Connector Stamping Guide
How precision stamping serves EV charging connector programs — materials, tolerances and plating.
ORDERING & FAQ
How to Order Progressive Die Heavy Stamping & Frequently Asked Questions
From drawing to delivered parts: a four-step path with engineering review at the front and 100% dimensional inspection at the back — then the questions buyers ask us most.
Step 1
Submit CAD & Specs
Send 2D/3D drawings (STEP, DWG, PDF) with quantity, material, and tolerance requirements.
Step 2
DFM Feedback & Quotation
Our engineering team conducts DFM analysis and follows up with a competitive quote after the review.
Step 3
Precision Manufacturing
High-speed progressive die stamping, secondary forming, finishing, and surface treatment per your specifications.
Step 4
100% QC & Express Shipping
100% dimensional inspection, anti-corrosion packaging, and global express delivery.
What parts does heavy progressive die stamping produce?
Busbars, brackets, mounting hardware, wire and cable connectors, and other larger, thicker precision components that need more tonnage than a high-speed line provides. Typical programs come from EV, power distribution, switchgear, solar and industrial automation.
What materials and thicknesses can you run on the heavy line?
Carbon steel, stainless steel, aluminum, copper alloys, brass and phosphor bronze on strip from 0.05 mm to 3.0 mm thick and up to 650 mm wide. The heavy 45 to 110 ton new-energy presses handle the thicker gauges that lighter presses cannot form.
What tolerances can heavy stamping hold?
Piloted progressive dies hold positioning to ±0.005 mm. Critical dimensions are verified with CMM and optical measurement in the quality lab, with 100% dimensional inspection on the presses, all under an IATF 16949:2016 quality system.
Is the progressive tooling built in-house?
Yes. Die design, CAD, build, try-out and maintenance all happen in our in-house tool room with wire EDM, CNC and grinding, so tooling is proven on our own presses before volume starts and changes are made in real time.
Can heavy stamped parts be plated or finished after stamping?
Yes. Selective reel-to-reel plating applies gold, silver, tin or nickel at 2-8 µm and zinc at 5-12 µm, verified to ASTM B117 salt spray. Assembly, insert molding and overmolding are also available under the same program.
What volumes make heavy progressive stamping economical?
Heavy progressive dies pay back as annual volume crosses roughly 50,000 pieces per year; above that, tooling amortization per part becomes marginal and per-part cost collapses. Below that range, laser cutting or CNC may win on total cost.
Ready to Start Your Precision Stamping Program?
Send your drawing today — engineering runs a free DFM review and detailed pricing follows the review.
100% Confidential | NDA Protected | 24H Response
GO DEEPER
Pair This Service With the Right Parts
Brackets
Get brackets that mate first time — hole position and flatness controlled in the die.
View Product Specs
Bus Bars
Carry the load cooler with plated contact faces on formed copper and aluminum busbars.
View Product Specs
Bent Busbars
Bend without failure — radius, springback and plating zones set at the DFM stage.
View Product Specs