Progressive Die Stamping

1、Process Introduction | What problems can stamping solve?

High speed mass production: progressive die 200-800 times/min, single shift daily production of 100000-500000 pieces, cost 60-80% lower than machining
Complex three-dimensional shape: a combination of multiple workstations including deep drawing, punching, flanging, and shaping, achieving box body, shell, flange, and reinforcement ribs
High precision dimensions: Precision progressive die ± 0.01 mm, hole position accuracy ≤ 0.02 mm, direct assembly without secondary processing
Excellent surface: Cold rolled sheet surface Ra ≤ 0.8 µ m, galvanized/coated sheet can still maintain its original appearance after stamping
Material saving: Closed material layout, material utilization rate ≥ 85%, suitable for precious metals and stainless steel thin materials

2、Capabilities

Item	Specification
Maximum Press Capacity	25 t – 800 t Mechanical / 1250 t Servo
Maximum Die Size	2500 × 1200 mm (Progressive Die)
Material Thickness	0.05 mm – 12 mm (Steel) / 0.1 mm – 8 mm (Stainless Steel) / 0.1 mm – 10 mm (Aluminum)
Blanking Accuracy	±0.01 mm / Hole Pitch ±0.02 mm
Feeding Method	Servo Roller Feeding, Step Accuracy ±0.005 mm
Batch Capacity	1 – 1,000,000 pieces/batch, Die Change < 15 min (Quick Clamping System)

3、Our Equipment

AIDA NC1-800 (800 t)

Workbench 2500 × 1200 mm, servo speed regulation 20-120 SPM
Suitable for deep drawing of large automotive coverings and forming of high-strength steel

AIDA NC1-200 (200 t) x 3 units

800 × 800 mm, progressive die high-speed 200-600 SPM
Precision punching, material cutting, motor iron core, connector spring plate dedicated

Bruderer BSTA 125 (125 t)

Swiss high-speed punch, 1250 SPM, ± 0.005 mm step distance
0.1mm stainless steel electronic connector with multi station progressive design

Yamada Dobby 60 t x 6 units

600 SPM， Carrying the top material and tapping unit inside the mold
Small precision parts, M1-M3 in mold tapping completed in one go

Hyson servo press 125 t

Arbitrary travel curve, pressure fitting force closed-loop ± 1%, suitable for precision forming+online detection

4、Stamping Case Studies | Stamping Cases

Case 1 | New Energy Motor Core

Material: 0.35 mm non oriented silicon steel coil

Shape: Outer diameter 180 mm, 72 slots, thickness 40 mm, stacked rivet

Process: Progressive mold at 72 stations+rotating stacking riveting+online burr detection ≤ 0.02 mm

Result: Flatness ≤ 0.05 mm, iron loss ≤ 2.4 W/kg, monthly production of 1.2 million pieces

Case 2 | Car door hinge

Material: B340LA high-strength steel 4mm

Shape: 3D deep drawing+side punching, 3D tolerance ± 0.1 mm

Process: 800 ton servo press+three-axis transfer arm, 7-station transfer mold

Result: The positional accuracy of the side hole is 0.08 mm, no machining is required, and the annual production capacity is 800000 sets

Case 3 | 5G RF shielding cover

Material: 0.2 mm C7521 phosphor bronze

Shape: 128 pieces consisting of 0.25mm micro louvers and 0.3mm convex bulges

Process: 125 ton high-speed punch, step distance of 12 mm, 600 SPM

Result: The louvers have no burrs, the shielding effectiveness is>100 dB, and the monthly production is 5 million pieces

5、 Mold and Automation

Self designed progressive/transfer/composite molds, MaxProgress simulation forming, reducing trial molds by 40%
Mold steel: SKD11, CD53, hard alloy inserts, with a lifespan of ≥ 100 million times
Integrated in mold tapping, in mold riveting, and in mold injection molding to reduce post-processing
Robot+visual feeding, automatic roll change, utilization rate ≥ 85%
Online detection: visual size+pressure curve+leak detection, defect rate ≤ 50 PPM

6、 Quality and traceability

IATF 16949 Automotive Stamping System
ISO 9013 Punching Accuracy Standard
Each batch: First piece full-size+10% inspection+Last piece comparison, data automatically uploaded to MES
QR code+visual engraving: mold number+roll number+operator, scan the code to trace back to the raw material furnace number

HEHUA FAQ

Trust Reliability

Years of export experience to global markets, proving our reliability in quality, logistics, and compliance.

Certified quality management and standardized production ensure reliable and repeatable results for every order.

What tolerances can you achieve?

Our standard tolerance for CNC machining is DIN-2768-1-f (fine)or +/-0.01mm. For high-precision requirements, we can achieve tolerances as tight as +/-0.005mm depending on the geometry and material.

What surface finishes do you offer?

We provide one-stop surface treatment services, including: As-machined (De-burred) Sandblasting Anodizing (Type ll Type III)Polishing Mirror Polishing Powder Coating Painting Laser Engraving (Logo/Text)

How fast can I get a quote?

Send us your 3D files (STEP/IGES) and 2D drawings (PDF). Our engineering team will analyze them and provide a detailed quote within 6-12 hours.

What is your typical lead time?

Prototypes: 3-7 days Production 10-20 days We also offer an Expedited Service for urgent projects.

Do you provide samples before mass production?

Yes, we always recommend making a pre-production sample for approval. We will send you photos/videos or ship the physical sample to you for verification before running the full batch.

What if the parts do not meet the specifications?

We have a strict Quality Control policy. If the parts do not meet the drawing specifications, we will remake them for free or provide a full refund. We stand behind our quality 100%.

What materials can you machine?

We work with a wide range of materials including: Metals, Aluminum (6061, 7075), Stainless Steel (303, 304, 316), Brass, Copper, Titanium Plastics: ABS, POM(Delrin), PEEK, Nylon, Polycarbonate. If you need a special material, just let us know.

Customization Process

Label

Boring services Drilling & Tapping

Core competency

Solution

About us