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4140 alloy steel investment casting and CNC machining cams

Process: investment casting & CNC precision machining Weight: 1.5-12kg Service: OEM custom made, as per your drawings or samples Heat treatment available, as per your request Application: SIEMENS high voltage circuit breaker

Technical Parameter


Precision Silicon Sol Casting+Precision Machining+Polishing



Material Standard:

ASTM,AISI304,AISI 316, DIN1.4308,DIN1.4408,JIS SCS13,SCS14

Weight of Raw Casting:                      

0.5 - 2.6KGS

Casting Dimension Tolerance

 CT5-CT6 Grade

Casting Surface Roughness>


Machining Surface RoughnessRa0.8-1.6

Support Drawing File Format

ProE (.igs , .stp) , Auto CAD , PDF, Jpeg,   Jpg, Png

Product Process Documentation

Product Casting Process Card, Machining Process Card, Product Inspection Card

Heat Treatment:

Solid Solution Treatment(1050 degree heat preservation 2H above)

Precision Machining Equipment

50 CNC Machines, 800 Vertical Machining Center

Measuring Tool:

Three Coordinate, Micrometer, Caliper, Height Gauge 


Three Inspection: First inspection, Inspection, Final inspection 

Available Report:Casting CF8 or CF8M Material Report, Product Ddimension Inspection Report

 Technological Process

  1.Casting Mould for beer faucet

  2.Stainless Steel beer faucet

  3.Casting Shell of beer faucet

  4.Casting Blank and Machining of Stainless Steel beer faucet 

 Casting Capability

  As a professional precision casting factory, we only produce high quality precision castings. Castings with distinct edges and corners, size precision (critical dimension can reach ct5-ct6 level) and surface smoothness (casting surface roughness Ra 6). For castings can also be plastic, with the press machine, fixtures and measuring tool calibration castings.

  Machining Capability Inspection Capability

  We have produced more than 700 different types of precision castings, these products are mainly exported to Europe, the United States and Japan, our engineers and workers are familiar with the overseas customer engineer standards and quality requirements. As far as now my company has 18 sets of machining center, 3 sets of inclined bed, 21 CNC machine tools, 1 sets of CMM inspection center, 3 sets of manual lathes, milling machines 2, 18 Taiwan 1 Taiwan drilling machine, ultrasonic cleaning machine, 1 sets of vibration grinding machine, 1 sets of welding machine.

Tianhui Factory

Tianhui CNC's Shop 

Tianhui CNC Center's Shop 

 Quality Control 

Magnetic particle testing

Production Processes & QC Reports

ISO9001:2008 Certificate of Quality Management System 

 Safty Packing


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