Dongguan Qingsheng Machinery Co., Ltd
Capabilities

Precision machining, start to finish

A full range of in-house processes to take your parts from concept to finished component.

CNC Milling

3-, 4- and 5-axis milling plus CNC gantry machining for complex geometries and multi-surface parts in one clamping.

CNC Turning

Horizontal and vertical NC lathes, turn-mill compounds and Swiss-type lathes for high-precision turned components.

Grinding

Surface grinding, manual and CNC ID/OD grinding, and gantry grinding for tight-tolerance finishing.

Wire-Cut & EDM

Fast, medium and slow wire-cut EDM plus sinker EDM for hardened materials and intricate profiles.

Surface & Heat Treatment

Nickel/zinc plating, blackening, anodizing and coating; nitriding, carbonitriding, quench and temper.

Secondary Services

Welding, polishing, assembly, casting, forging, stamping, sheet-metal fabrication, powder metallurgy and 3D printing.

In action

Watch our machines at work

Real footage from our Dongguan workshops.

CNC milling — aluminum block with flood coolant
CNC turning — brass component, close-up
Process details

Equipment and process list

CNC Milling

  • 3-axis
  • 4-axis
  • 5-axis
  • Horizontal machining
  • CNC gantry

Turning

  • Horizontal NC lathes
  • Vertical NC lathes
  • Turn-mill compounds
  • Swiss-type lathes

Grinding

  • Surface grinding
  • Manual ID/OD grinding
  • CNC ID/OD grinding
  • Gantry surface grinding

Wire-Cut & EDM

  • Fast wire
  • Medium wire
  • Slow wire
  • EDM sinking

Other Processes

  • Welding
  • Polishing
  • Assembly
Materials

Materials we work with

Common grades in stock channels; special materials sourced on request.

CategoryCommon grades
Carbon & Mold Steel45#, SKD11, 12L14, 9CrWMn, 16MnCr5
Stainless SteelSUS303, SUS304, SUS316/316L, SUS420, SUS440C
Aluminum AlloysAL5052, AL5083, AL6061, AL6082, AL7075
Copper & AlloysT2/C1100, HPb59-1/H62/H65, QAl9-4/C95400, QSn6.5-0.1/C51900, C17300
Engineering PlasticsPOM, PEEK, PA6/PA66, PC, PTFE
Supporting services

Finishing, heat treatment and more

One parts package, all processes coordinated by us.

Surface Treatment

  • Nickel plating
  • Zinc plating
  • Blackening
  • Anodizing
  • Spray coating

Heat Treatment

  • HRC hardening
  • Nitriding
  • Gas nitriding
  • Carbonitriding
  • Quench & temper

Other Services

  • Casting & forging
  • Stamping & injection molding
  • Sheet-metal laser cutting & bending
  • Powder metallurgy
  • 3D printing
Quality control

Four inspection gates on every order

Certified materials, in-process monitoring, CMM-verified dimensions and pre-shipment rechecks.

IQC Incoming Inspection
IQC

Incoming Inspection

Material grades verified against mill certificates to prevent mix-ups. Material certificates available on request.

IPQC In-Process Inspection
IPQC

In-Process Inspection

First-article confirmation and patrol checks monitor machining dimensions and prevent batch defects.

FQC Final Inspection
FQC

Final Inspection

Calipers, micrometers, height gauges and ZEISS CMM verify dimensional tolerances; burr and appearance checks.

OQC Outgoing Inspection
OQC

Outgoing Inspection

Quantity, dimensions and packaging re-checked against your drawings before shipment.

Equipment

Key equipment

Modern CNC machining centers and metrology from OKUMA and ZEISS.

OKUMA 5-Axis Machining Centers

OKUMA 5-Axis Machining Centers

2 units, max machining scope 800 × 1020 × 600 mm. One-clamping multi-surface forming and complex curved surfaces with strict GD&T control.

ZEISS CMM

ZEISS CMM

High-precision 3D inspection for dimensions and geometric tolerances — flatness, parallelism, perpendicularity and position. Inspection reports available before shipment.

CNC Machining Workshops

CNC Machining Workshops

Dedicated CNC turning and milling workshops covering turning, milling, grinding and wire-cut in-house.