ER COLLET CHUCKS
POLYGONAL TAPER ER COLLET CHUCKS
FEATURES • Extremely stable and rigid connection between tool and the machine • High torque and bending forces transmission due to simultaneous tapered polygon and face contact with machine spindle • Self centering ability due to unique design • Internal coolant supply, directly to the tool tip • Best solution for all processes - both in turning and milling • Modular design for flexible tooling • Standardized interface as per ISO 26623
T.I.R. ≤ 0.0001" in ID bore Speed Up to 25,000 rpm
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.
C3/C4/C5/C6/C8 Part Number Collet Size
Collet Range
Nut Wrench
L (mm)
D
Max. RPM Fig.
L L1
D
C3-ER16-45 C3-ER20-45 C4-ER16-70 C4-ER20-52 C4-ER25-52 C4-ER32-54 C5-ER16-100 C5-ER20-55 C5-ER20-100 C5-ER20-130 C5-ER25-55 C5-ER25-100 C5-ER32-57 C5-ER32-100 C5-ER40-60 C6-ER16-100 C6-ER20-60 C6-ER20-100 C6-ER25-60 C6-ER25-100 C6-ER32-60 C6-ER32-100 C6-ER32-130 C6-ER40-65 C8-ER20-65 C8-ER25-70 C8-ER32-70 C8-ER32-160 C8-ER40-70
ER16 0.019 - 0.406" 016-SPAN 45 1.77" 1.18" 1.26" 25K 1 ER20 0.039 - 0.511" 020-SPAN 45 1.77" 1.18" 1.38" 25K 1 ER16 0.019 - 0.406" 016-SPAN 70 2.76" 1.97" 1.26" 25K 1 ER20 0.039 - 0.511" 020-SPAN 52 2.05" 1.26" 1.38" 25K 1 ER25 0.039 - 0.629" 025-SPAN 52 2.05" 1.14" 1.65" 25K 1 ER32 0.078 - 0.787" 032-SPAN 54 2.13" 1.34" 1.97" 25K 1 ER16 0.019 - 0.406" 016-SPAN 100 3.94" 3.15" 1.26" 25K 1 ER20 0.039 - 0.511" 020-SPAN 55 2.17" 1.38" 1.38" 25K 1 ER20 0.039 - 0.511" 020-SPAN 100 3.94" 3.15" 1.38" 25K 1 ER20 0.039 - 0.511" 020-SPAN 130 5.12" 4.33" 1.38" 25K 1 ER25 0.039 - 0.629" 025-SPAN 55 2.17" 1.38" 1.65" 25K 1 ER25 0.039 - 0.629" 025-SPAN 100 3.94" 3.15" 1.65" 25K 1 ER32 0.078 - 0.787" 032-SPAN 57 2.24" 1.46" 1.97" 25K 1 ER32 0.078 - 0.787" 032-SPAN 100 3.94" 3.15" 1.97" 25K 1 ER40 0.118 - 1.023" 040-SPAN 60 2.36" 1.58" 2.44" 25K 1 ER16 0.019 - 0.406" 016-SPAN 100 3.94" 3.07" 1.26" 25K 1 ER20 0.039 - 0.511" 020-SPAN 60 2.36" 1.50" 1.38" 25K 1 ER20 0.039 - 0.511" 020-SPAN 100 3.94" 3.07" 1.38" 25K 1 ER25 0.039 - 0.629" 025-SPAN 60 2.36" 1.50" 1.65" 25K 1 ER25 0.039 - 0.629" 025-SPAN 100 3.94" 3.07" 1.67" 25K 1 ER32 0.078 - 0.787" 032-SPAN 60 2.36" 1.50" 1.97" 25K 1 ER32 0.078 - 0.787" 032-SPAN 100 3.94" 3.07" 1.97" 25K 1 ER32 0.078 - 0.787" 032-SPAN 130 5.12" 4.25" 1.97" 25K 1 ER40 0.118 - 1.023" 040-SPAN 65 2.56" 1.69" 2.44" 25K 1 ER20 0.039 - 0.511" 020-SPAN 65 2.56" 1.38" 1.38" 25K 1 ER25 0.039 - 0.629" 025-SPAN 70 2.76" 1.58" 1.65" 25K 1 ER32 0.078 - 0.787" 032-SPAN 70 2.76" 1.58" 1.97" 25K 1 ER32 0.078 - 0.787" 032-SPAN 160 6.30" 5.12" 1.97" 25K 1 ER40 0.118 - 1.023" 040-SPAN 70 2.76" 1.58" 2.44" 25K 1
L1
L
Fig. 11
ER Collet Chucks have coolant-thru capabilities. No disc, special nut or wrench required! See ER Coolant Collets on pages 65-70
ER Torque Wrenches Page 75
ER Back Up Screws Page 75
ER Collets Pages 65-70
ER Nuts Page 74
64 847-367-4800
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