Four Metal Processes, Under One Roof
Most contract manufacturers run one or two processes and subcontract the rest. Pengfeng runs sheet metal, stamping, deep drawing and CNC in-house — plus welding, finishing and assembly. One drawing in, one shipped part out.
Pick a Process — or Let Us Recommend One
Every process below has its own capability page with equipment, tolerance ranges and typical applications.
0.5–12mm±0.10mm
01
Sheet Metal Processing
Laser/plasma cutting, CNC bending, welding, hardware insertion, assembly.
0.1–10mm±0.05mm
02
Precision Stamping
Single, progressive and compound dies. High-volume flat and shallow parts.
Up to 300mmMulti-step
03
Deep Drawing
Single and multi-step hollow parts — housings, casings, cookware, trays.
3/4/5-axis±0.02mm
04
CNC Machining
3/4/5-axis milling, turning, drilling. Tight-tolerance machined components.
Sheet Metal Fabrication
From a flat sheet to a finished, welded, assembled enclosure. Our laser and plasma cutters handle up to 12mm steel and 20mm aluminium; our press brakes form, and our welders join — TIG, MIG, laser and spot.
- 2D flat parts, boxes, brackets and enclosures — cut, bent, welded and deburred
- Hardware insertion — PEM studs, rivnuts, heat-set inserts, pressed-in bushings
- Welding — TIG, MIG, laser and spot, with leak testing on sealed assemblies
- Finishing — deburr, bead blast, powder coat, anodize, silk screen
Precision Stamping
The workhorse for high-volume flat parts. Our press shop runs single-cavity, progressive and compound dies from 25 to 400 tonnes. With 5,000+ dies in house we rarely have a lead-time problem — and an 18-minute changeover keeps rush orders from becoming a crisis.
- Single-cavity dies — fast turnarounds for prototypes and low volume
- Progressive dies — pierce, form and cut in one stroke for very high volume
- Compound dies — two-level forming where geometry demands it
- In-house die shop — design, build, harden and maintain tooling under one roof
Deep Drawing
For hollow parts — from a shallow 8mm pan to a 300mm appliance drum. We run single-draw and multi-step drawing with hydraulic presses up to 400T, with tooling designed and built in-house so the wall-thickness progression stays inside your tolerance.
- Single-draw parts — one-step cups, pans and shells
- Multi-step drawing — up to six draw stages for deep cylinders and drums
- Necking and flanging — stepped diameters in a controlled sequence
- Lubrication and blank-holder control — the difference between a good wall and a torn one
CNC Machining
When tolerances get tighter than stamping can hold, we machine it. Our milling floor covers 3, 4 and 5-axis work up to 1,300×700×600mm, plus CNC turning for round components. Ideal for aluminium housings that need both a drawn shell and machined features.
- 3-axis milling — prismatic parts, pockets, faces and drilling
- 4-axis milling — indexed rotation for circular features
- 5-axis machining — complex geometry in one setup, no re-fixturing
- CNC turning — round stock parts, shafts, bushings and spacers
Assembly & Kitting
A machined part that arrives in a box with nothing else is not a deliverable — it is homework. We build mechanical, electrical and pneumatic sub-assemblies, then kit them with the screws, gaskets, labels and inserts your assembly line needs.
- Sub-assembly — solder, crimp, press-fit and torque-controlled fastening
- Kitting — every part bagged and labelled to your BOM
- Functional testing — leak, torque and fit checks before packing
From Drawing to Delivery in Four Steps
The same sequence whether you order one prototype or 500,000 pieces.
Drawing Review
Tolerances, wall thickness, draft and manufacturability — checked free, same day.
Tooling & Sample
Die or fixture built in house. First article inspected before anything else runs.
Production
Batch runs with in-process SPC, heat-number traceability and mid-run reviews.
Inspect & Ship
CMM verification, report attached, export packing and door-to-door delivery.
Not Sure Which Process You Need?
Send the drawing. We will tell you the process, the material and the cost — and flag anything that will cost you money to make as drawn.