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- ADD: Room 701,Bldg 11,lane 1,Cuigang zone 1, Fuyong Town,Bao'an District, Shen Zhen,518103,China
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BT30 Taper Er Collet Chuck
- Standard:MAS403/BT
- Material:20CrMnTi
- -185° long cryogenic treatment
- Product description: BT30-ER32-60 Ra<0.15 7:24≤AT3 Hardness:HRC56-60°
Product introduction
USE:
For clamping tools with cylindrical shank in Collets according to DIN 6499;
Comprehensive inspection way of chuck
#7:24 taper precision ≤AT3And part of the standard size are tested by
standard inspection tools which made in Germany;
#Surface of the clamping inner hole is grinding by high speed inner-aperture grinder. and inspect by standard pneumatic measurement instrument; the big end contact area rate is above 90%;
#Shank thread is inspected with 4h level thread ring gauge. and the nut is inspected with 4H level thread plug gauge, the quality guaranteed;
#Run out of the inside shank Bone: <0.002(The length of the shank 100L)
#Coaxiality 5u:Shank run out≤0.002;
Equip≤0.005. The highest comprehensive run out point is no more than0.005(≤0.005mm collet clamping interchangeable with any integrated shank run out does not exceed the highest accuracy 0.008mm);
#Dynamic balance:We can do G2.5 20000一50000rpm according to clients demands.
Cryogenic treatment
1.-185℃ long cryogenic.nearly all of the residual austenite into martensite
2.Carbide precipitation of Nanoscale particles,increasing the hardness
and toughness 3.Reducing residual stresses
4.Wear resistance significantly improved
#20h超长定型热时效去除磨加工时的残余内应用力
Thermal aging processing
20h long stereotyped thermal limitation removal
of grinding residual of grinding residual stress.

