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Why Processing Requirements Of Precision Parts So Strict ?
Sep 03, 2020
Common Machining processes include CNC turning, Auto lathe turning,CNC Milling,Sheet metal fabrication, Casting, etc.

 

With the development of science and the introduction of advanced technology, high-end advanced equipment is widely used,
at the same time it brings more and more high quality and high efficiency products to life and production.
However, these high-end advanced equipment for the assembly of non-standard precision parts with more and more stringent requirements, so, these strict requirements are reflected in what aspects ?

 

Requirements for machining dimensions of non-standard custom precision parts:
 
Cylinder for example: the cylinder diameter, there are strict requirements,
positive and negative errors in the required range of qualified parts, otherwise are not qualified parts;
If the diameter of an embedded cylinder is too large and exceeds the allowable error range,
it will result in a situation where the actual diameter is too small and exceeds the lower limit of the allowable negative value of the error,
which will cause the insertion to be too loose. Unstable problems occur.  
 
These are not qualified products, or the cylinder length is too long or too short,
beyond the error allowed, are not qualified products, are to be invalidated,
or reprocessed, which will inevitably lead to increased costs.    
 
The second is advanced non-standard precision parts processing equipment and testing equipment,
advanced processing equipment makes the processing of precision parts easier, higher accuracy, better results. 


Shijin was established in June 2009, is a manufacturing company specialized in the high precision processing. We mainly produce oil and gas valve parts, fluid hydraulic type high pressure quick connection parts, sensor parts, wind power equipment parts, auto parts, etc. We now have over 100 units of imported and domestic CNC equipments, various grinding machines (surface grinding, internal and external circular grinding, coreless grinding) and hardness tester, projector, profilometer, coordinate measuring machine and other testing equipments.

Since establishment, we have been adhering to the credibility principle, honest cooperation and strict management for the purpose of service. We also has been adhering to the quality policy of full participation, continuous improvement, quality advancement, punctual delivery and customer satisfaction. Our company provide customers with high quality products, considerate service, strict quality, fast delivery, perfect production equipments, first-class technology, so that Shijin has a place in the industry.

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Main Production Equipment List:

No.

Name

Model

QTY

Equipment Manufacturer

System

Spec./ Range of  Work

Accuracy

1

CNC Machining Center

CMV920 

1

Doosan (Korea)

FANUC 

1000*500*530 

0.0025mm 

2

CNC Machining Center

DNM500 

1

Doosan (Korea)

FANUC 

1000*500*530 

0.0025mm 

3

CNC Machining Center

CMV435 

2

Doosan (Korea)

FANUC 

1000*500*530 

0.0025mm 

4

CNC Machining Center

850B 

2

Jieyongda

FANUC 

1000*500*530 

0.0025mm 

5

CNC Machining Center

V435 

2

Doosan (Korea)

FANUC 

1000*500*530 

0.0025mm 

6

CNC Machining Center

DNM655 

1

Doosan (Korea)

FANUC 

1000*500*530 

0.0025mm 

7

CNC Machining Center

DNM415 

2

Doosan (Korea)

FANUC 

1000*500*530 

0.0025mm 

8

CNC Machining Center

VM1370L

1

Yonglida

FANUC 

726*430*510

0.01mm

9

Swiss-type Automatic Lathe

STAR-20 

10

STAR (Japan) 

FANUC 

∮20*200(D*L) 

0.0025mm 

10

Swiss-type Automatic Lathe

A20 

2

Citizen(Japan) 

FANUC 

∮20*200(D*L) 

0.0025mm 

11

CNC Lathe

Lynx225 

4

Doosan (Korea)

FANUC 

∮200*500(D*L) 

0.005mm 

12

CNC Lathe

Lynx235 

4

Doosan (Korea)

FANUC 

∮200*500(D*L) 

0.005mm 

13

CNC Lathe

GT-400

20

Gongtie

SYNTEC-6TA 

∮200*500(D*L) 

0.005mm 

14

CNC Lathe

6136/6351A/3210S

52

Shanghai

GSK980TDb 

∮200*500(D*L) 

0.005mm 


Main Testing Equipment List:

No.

Name

Model

QTY 

Equipment Manufacturer

Accuracy

1

CMM

Croma686

1

Serein Measurement Technique

0.001mm

2

Image Measuring Instrument

YVM3020C

1

Dongguan Yuanxing Optical Instrument

0.001mm

3

Probe Image Measuring Instrument

YVM3030T

1

Dongguan Yuanxing Optical Instrument

0.001mm

4

Contour Shape Measuring Machine

C1600G-13

1

Tokyo Precision Equipment

(1+2L/100)um

5

 Rockwell Hardness Tester

HR-150A

1

Laizhou Huayin

1HRC

6

Roughness Tester

TR200

1

 Beijing Shidaizhifeng Instrument Co., Ltd

0.001um

7

Roughness Tester

SJ-210

1

Mitutoty

0.001um

8

Concentricity Measuring Instrument

JS-A-10WC

1

Dongguan Tsugami Machine Electricity

0.001mm

9

Digital Tesla Meter

HT20

1

Shanghai Hengtong Magnetic Electricity

0.1mT

10

Eddy Current Thickness Meter

ED300

1

Shenyang Tianxing Test Instrument

0.1um


For more information, request a quote to get started on a project with us.


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