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Company Profile
Ningbo Tianhui Machine Co.,Ltd








Kaohsiung Beilun District of Zhejiang city of Ningbo Province under the Ni Bridge No. 362


http://www.tianhuimachining.com/ http://www.peartree-ls.com/com/nbthjx/

Product details

Process: 42CrMo Forging + Precision CNC Machining

Process: 42CrMo Forging + Precision CNC Machining

Product Name: Precision CNC Machining 42CrMo Support Proton

Main Use: Used in Chemical Industrial Machinery Part.

Technical Parameter


Precision 42CrMo Forging + Precision CNC Machining


42CrMp, 20# , 45#

Material Standard:


Weight of Raw Casting:

0.35 - 15KGS

Casting Dimension Tolerance

CT5-CT6 Grade

Casting Surface Roughness>


Machining Surface Roughness Ra0.8-1.6

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,Turning Machine

Measuring Tool:

Three Coordinate, Micrometer, Caliper, Height Gauge 


Three Inspection: First inspection, Inspection, Final inspection 

Available Report: Casting 20# or 45# Material Report, Product Ddimension Inspection Report

Technological Process

1.Forging Mould for 42CrMo Support Proton

2.Forging Blank and Machining of 42CrMo Support Proton

Carbon Steel Hot Forging Capability

As a professional Carbon Steel Hot Forging Factory , only manufacture high quality carbon steel hot forging parts . Edges clearly , Stable size of hot forging parts (Critical Sizes can be up to CT5 -CT6 Grade ), Smooth Suface ( Roughness of Forging Surface Ra6 ) . Reshaping hot forging parts by Press Maching , Fixture Tool and Measure rectification .

Machining Capability Inspection Capability

We have produced more than 700 different types of machining product , these product 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 7 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.

Quality Control

ISO9001:2008 Quality System Cetificates

Safty Packing