Factory

Qingdao Maxplus Metal Co., Ltd located close to Qingdao Seaport.Manufacturing since 2011, our products are exported worldwide. With rich export experience and technical .we have over 200 skilled employees .Company cover production  area of 10,000 ㎡ .
 
We provide one‑stop services including precision metal stamping, sheet metal bending, structural welding & assembly, as well as aluminum die‑casting. Our products are widely used in industrial equipment,Auto part. hardware accessories, construction machinery, new‑energy equipment and home hardware sectors.
 
We stick to precision manufacturing, quality‑first principle, reliable lead‑time and custom‑oriented solutions. Full‑range quality inspection is carried out from design, mold testing, mass production to final shipment. We maintain long‑term partnerships with global clients by providing cost‑effective products and professional services.




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we have our own product line . we have advanced equipment. 50 set 250 ton machine. 10 set 400 ton machine. 3 set 1000 ton machine.



Stamping Die Steel Selection

Die material selection balances tool life, part material hardness and die cost. Softer materials run well in standard tool steels, while hard or abrasive materials require premium steels or carbide inserts.

Part Material

Die Steel

Hardness (HRC)

Expected Life

Notes

Mild steel

SKD11 / D2

58–62

500 k–1 M strokes

Standard choice

Stainless steel

SKD11 / SKH-9

60–64

300 k–700 k strokes

Abrasive; requires polish

Aluminum

SKD11 / D2

58–62

700 k+ strokes

Low wear; watch galling

High-strength steel

SKH-9 / ASP23

62–64

200 k–500 k strokes

High impact loads

High-volume small parts

Carbide inserts

Very high

2 M+ strokes

Premium cost, long life



Common Stamping Buyer Mistakes to Avoid

· Designing for machining tolerances in a stamped part; stamping has different tolerance bands.

· Specifying sharp internal corners that cause punch breakage and cracks.

· Ignoring burr direction on functional edges.

· Too-small prototypes to justify hard tooling; use soft tooling first.

· Not planning for die maintenance; even hardened dies wear and need scheduled sharpening.



                          Metal Stamping Quality Control and Inspection

Every order undergoes a comprehensive quality control process before shipment. Independent inspection checkpoints are established at every production stage to ensure issues are detected at the source instead of being discovered only at final inspection.

Material Verification – Mill test reports are cross-checked against the material grade specified on purchase orders. PMI spot checks are carried out for stainless steel and alloys.

In-process Inspection – First Article Inspection (FAI), followed by scheduled dimensional checks throughout production.

Final Inspection – Full dimensional inspection in accordance with drawings. A coordinate measuring machine (CMM) is deployed to measure critical features when necessary.



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we have aluminum die casting machine 


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CATEGORIES

CONTACT US

Contact: Alice Saka

Phone: 13964871839

Tel: 86-13964871839

Email: alice@qdmaxplus.com

Add: Long Shan Street Jimo Area Qingdao China