Page 221 - UNION

part. hYDRAuLIc EXPANSION chuck HYDRAULIC EXPANSION CHUCK part.
C C

Mas 403 - Bt sHort & Heavy design Mas 403 - Bt30

chuck chuck

Taper T.I.R Bal./rpm Coolant HRc Taper T.I.R Bal./rpm Coolant HRc
≥ 5µm G2.5 ≥ 5µm G2.5
AT3 2.5×D 20000 AD/B 48~50 mm AT3 2.5×D 20000 AD/B 48~50 mm
cODE NO D1 D2 D3 L1 L2 max L2 min V G cODE NO D1 D2 D3 D4 L1 L2 max L2 min V L3 G
23.30.111 BT30 Shc 20P-85 44 85 23.30.211 Shc 6-70 6 25 28 M5×0.8
24.40.211 BT40 Shc 20P-72.5 20 40 49.5 72.5 52.5 42.5 10 M8×1.0 23.30.212 Shc 8-70 8 27 30 70 37.5 27.5 28 M6×1.0
27.50.311 BT50 Shc 32P-90 32 60 72 90 65 55 M16×1.0 23.30.213 Shc 10-75 10 29 32 75 42.5 32.5 38
23.30.214 Shc 12-75 12 31 34 45 34
Note BT50 : Balancing grade G2.5 / 15000rpm BT30 85 47.5 37.5 10
23.30.215 Shc 14-85 14 33 36 44
M8×1.0
23.30.216 Shc 16-90 16 35 38
46
23.30.217 Shc 18-90 18 38 41 90 52.5 42.5
23.30.218 Shc 20-90 20 40 43 - -
Note Reducing tool shank OD(chuck ID) through Reduction Sleeve

hydraulic Hydraulic
chuck din 69871 - sk sHort & Heavy design cHuck

Shrink Fit Shrink Fit
ChuCk ChuCk

Milling Milling
ChuCk ChuCk

Er CollEt Er CollEt
ChuCk ChuCk

nC Drill Taper T.I.R Bal./rpm Coolant HRc nC Drill
ChuCk ≥ 5µm ChuCk
G2.5
AT3 2.5×D 20000 AD/B 48~50 mm
cODE NO D1 D2 D3 L1 L2 max L2 min V G
tapping 26.40.411 Sk40 Shc 20P-64.5 20 40 49.5 64.5 52.5 42.5 M8×1.0 tapping
ChuCk 10 ChuCk
27.50.511 Sk50 Shc 32P-81 32 60 72 81 65 55 M16×1.0

Note SK50 : Balancing grade G2.5 / 15000rpm

8 Union Materials cUttinG tools 9