Precision Machinery

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Chuck / Centerless SG2-C/R

Correspond to various grinding such as seat by two axis interpolation control.
Space-saving internal grinder that can be adopted with chuck type workhead spindle as inherit SG1-IB.

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Features

Grinding Specifications

  C type
(Diaphragm chuck workhead)
R type
(2 roller 1 shoe workhead)
Outer diameter (mm) φ8~ φ20 φ1.5~ φ16
Inner diameter (mm) φ3~ φ12 φ1.0~ φ10
Width (mm) 2.5~ 20 1~ 8

Inside of Machine

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Cタイプ

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Rタイプ

Grinding Examples

Machine type
SG2-C SG2-R
Workhead type     Diaphragm chuck 2 roller 1 shoe
Method of
grinding
Reciprocate Grinding Reciprocate Grinding
Work Diameter
sg1-ib-work1c

 

sg1-ib-work2c

 

sg1-ib-work1-1

 

sg1-ib-work2-1

 

Material SUJ2 comparable SUS440C comparable SUS440C comparable
Hard-
ness
HRC58~62 HRC58~64 HRC58~62 HRC58~64
Stock
removal
φ0.1mm 0.1mm
(onger direction)
φ0.1mm φ0.1mm
Grinding
accuracy
Size
variation
within 2µm
(with constant size)
within ±10µm
(sheet depth)
within 2µm
(with constant size)
within 2µm
(with constant size)
Round-
ness
within 1µm within 1µm within 0.3µm
(O.D.roundness+)
within 0.3µm
(O.D.roundness+)
Rough-
ness
within Rz 1.2µm within Rz 1.2µm within Rz 1.2µm within Rz 1.2µm
Cylind-
ricity
within 2µm - within 2µm within 2µm
Straight-
ness
within 1µm within 1µm within 1µm within 1.5µm
R Shape within 10µm     within 10µm     within 2µm     within 2µm    
Cycle
Time
within 9sec     within 10sec     within 8.5sec     within 12.5sec

Machine Dimensions

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