ER COLLET CHUCKS CAT ER COLLET CHUCKS
T.I.R. ≤ 0.0001" in ID bore Speed Up to 25,000 rpm
FEATURES • Ball bearing nut with ground collet race • AT3 or better taper • Equipped with a right-hand-threaded back-up screw
RPM
COOLANT-THRU Coolant-Thru Thru-tool coolant
MILLING
DRILLING REAMING TAPPING
Please note that the maximum RPM listed in our catalog may vary depending on the toolholder shank, weight, balanceability and the G rating.
CAT40 - SOLID HEX NUT Part Number Collet Size Collet Range
D
Nut Wrench L L1
Max. RPM Fig.
D D1
L1
L
CAT40-ER16-2.76 CAT40-ER16-4.00 CAT40-ER16-6.00 CAT40-ER16-8.00
ER16 0.019 - 0.406" 016-SPAN 2.76" 1.38" 1.10" 1.75" 25K 1 ER16 0.019 - 0.406" 016-SPAN 4.00" 2.62" 1.10" 1.75" 25K 1 ER16 0.019 - 0.406" 016-SPAN 6.00" 4.62" 1.10" 1.75" 25K 1 ER16 0.019 - 0.406" 016-SPAN 8.00" 6.62" 1.10" 1.75" 25K 1
L
Fig. 1
CAT40 - SOLID NUT Part Number Collet Size
D1 D
Collet Range
Nut Wrench L L1
Max. RPM Fig.
D D1
CAT40-ER20-2.76 CAT40-ER20-4.00 CAT40-ER20-6.00 CAT40-ER20-8.00 CAT40-ER25-2.76 CAT40-ER25-4.00 CAT40-ER25-6.00 CAT40-ER25-8.00 CAT40-ER32-2.76 CAT40-ER32-4.00 CAT40-ER32-6.00 CAT40-ER32-8.00 CAT40-ER40-3.15 CAT40-ER40-4.00 CAT40-ER40-6.00
ER20 0.039 - 0.511" 020-SPAN 2.76" 1.38" 1.34" 1.75" 25K 1 ER20 0.039 - 0.511" 020-SPAN 4.00" 2.66" 1.34" 1.75" 25K 1 ER20 0.039 - 0.511" 020-SPAN 6.00" 4.66" 1.34" 1.75" 25K 1 ER20 0.039 - 0.511" 020-SPAN 8.00" 6.66" 1.34" 1.75" 25K 1 ER25 0.039 - 0.629" 025-SPAN 2.76" 1.38" 1.66" 1.75" 25K 1 ER25 0.039 - 0.629" 025-SPAN 4.00" 2.62" 1.66" 1.75" 25K 1 ER25 0.039 - 0.629" 025-SPAN 6.00" 4.62" 1.66" 1.75" 25K 1 ER25 0.039 - 0.629" 025-SPAN 8.00" 6.62" 1.66" 1.75" 25K 1
L1
L
L
Fig. 2
ER32 0.078 - 0.787" 032-SPAN 2.76" 2.01" 1.97" ER32 0.078 - 0.787" 032-SPAN 4.00" 3.25" 1.97" ER32 0.078 - 0.787" 032-SPAN 6.00" 5.25" 1.97" ER32 0.078 - 0.787" 032-SPAN 8.00" 7.25" 1.97" ER40 0.118 - 1.023" 040-SPAN 3.15" 2.41" 2.48" ER40 0.118 - 1.023" 040-SPAN 4.00" 3.25" 2.48" ER40 0.118 - 1.023" 040-SPAN 6.00" 5.25" 2.48"
- - - - - - -
25K 2 25K 2 25K 2 25K 2 25K 2 25K 2 25K 2
Notes: • Back-up Screw included with ER Collet Chuck. • *For Extended Length holders, “L” dimension has tapered length. To confirm clearance, please download model/drawing from our website Available in TAPER PLUS + Dual-taper and flange contact
ER Collet Chucks have coolant-thru capabilities. No disc, special nut or wrench required! See ER Coolant Collets on pages 65-70
50 847-367-4800
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