CAT 50 ER COLLET CHUCK

HIGH PRECISION TOOLHOLDING

ER Collet Chucks are an ideal solution for most drilling and lighter higher speed milling applications producing operational speeds as high as 20,000 RPM. The versatile design of the ER Collet Chuck provides a wide range of machining options, from production to high precision machining. Simply select the right collet and nut combination from our range of performance choices to achieve the best toolholder for your application.

 
ER Collet Chucks
  • Available in CAT50, CAT50 AD/B (C50BC) coolant and CAT50 Simulfit (C50BC)
  • Collet seat taper T.I.R. ≤ .0002”
  • Accepts DIN 6499 collets
  • Balanced to G2.5
  • Constructed of alloy steel for long, durable service life
  • Hardened to Rc: 52-56 to avoid damaging collet chuck treads

Collet Range Specifications
  
 

Collet & Nut Performance Selection  

Part #
Taper:
Class:
Size:
Simulfit:
DIN Coolant:
B:
C:
Socket Depth:
Nut:
Nut Type:
Torque:
Back Up Screw:
Wrench:
 
C50-16ERF400
CAT 50
STANDARD
ER 16
N
N
1.10"
4.00"
2.50"
16ERHN
FLUSH NUT
52 Ft. Lbs.
BS-20
ECN20W
C50-16ERP412
CAT 50
STANDARD
ER 16
N
N
1.10"
4.12"
2.50"
16ERHPN
POWER NUT
42 Ft. Lbs.
-
ECN20W
C50-16ERF600
CAT 50
STANDARD
ER 16
N
N
1.10"
6.00"
2.50"
16ERHN
FLUSH NUT
52 Ft. Lbs.
BS-20
ECN20W
C50-16ERP612
CAT 50
STANDARD
ER 16
N
N
1.10"
6.12"
2.50"
16ERHPN
POWER NUT
42 Ft. Lbs.
-
ECN20W
C50-16ERF800
CAT 50
STANDARD
ER 16
N
N
1.10"
8.00"
2.50"
16ERHN
FLUSH NUT
52 Ft. Lbs.
BS-20
ECN20W
C50-16ERP812
CAT 50
STANDARD
ER 16
N
N
1.10"
8.12"
2.50"
16ERHPN
POWER NUT
42 Ft. Lbs.
-
ECN20W
C50-16ERF1000
CAT 50
STANDARD
ER 16
N
N
1.10"
10.00"
2.50"
16ERHN
FLUSH NUT
52 Ft. Lbs.
BS-20
ECN20W
C50-16ERP1012
CAT 50
STANDARD
ER 16
N
N
1.10"
10.12"
2.50"
16ERHPN
POWER NUT
42 Ft. Lbs.
-
ECN20W
C50BC-16ERF400
CAT 50 AD/B
STANDARD
ER 16
N
Y
1.10"
4.00"
2.50"
16ERHN
FLUSH NUT
52 Ft. Lbs.
BS-20
ECN20W
C50BC-16ERF600
CAT 50 AD/B
STANDARD
ER 16
N
Y
1.10"
6.00"
2.50"
16ERHN
FLUSH NUT
52 Ft. Lbs.
BS-20
ECN20W
C50F-16ERF400
CAT 50 Simulfit
STANDARD
ER 16
Y
N
1.10"
4.00"
2.50"
16ERHN
FLUSH NUT
52 Ft. Lbs.
BS-20
ECN20W
C50F-16ERF600
CAT 50 Simulfit
STANDARD
ER 16
Y
N
1.10"
6.00"
2.50"
16ERHN
FLUSH NUT
52 Ft. Lbs.
BS-20
ECN20W
C50F-16ERF800
CAT 50 Simulfit
STANDARD
ER 16
Y
N
1.10"
8.00"
2.50"
16ERHN
FLUSH NUT
52 Ft. Lbs.
BS-20
ECN20W
C50-20ERF400
CAT 50
STANDARD
ER 20
N
N
1.34"
4.00"
3.88"
20ERHN
FLUSH NUT
74 Ft. Lbs
BS-09
20ERHNW
C50-20ERP412
CAT 50
STANDARD
ER 20
N
N
1.34"
4.12"
3.88"
20ERHPN
POWER NUT
60 Ft. Lbs.
-
20ERHNW
C50-20ERF600
CAT 50
STANDARD
ER 20
N
N
1.34"
6.00"
3.88"
20ERHN
FLUSH NUT
74 Ft. Lbs
BS-09
20ERHNW
C50-20ERP612
CAT 50
STANDARD
ER 20
N
N
1.34"
6.12"
3.88"
20ERHPN
POWER NUT
60 Ft. Lbs.
-
20ERHNW
C50-20ERC622
CAT 50
STANDARD
ER 20
N
N
1.34"
6.22"
3.88"
20ERHCN
COOLANT NUT
74 Ft. Lbs
-
20ERHNW
C50-20ERF800
CAT 50
STANDARD
ER 20
N
N
1.34"
8.00"
3.88"
20ERHN
FLUSH NUT
74 Ft. Lbs
BS-09
20ERHNW
C50-20ERP812
CAT 50
STANDARD
ER 20
N
N
1.34"
8.12"
3.88"
20ERHPN
POWER NUT
60 Ft. Lbs.
-
20ERHNW
C50BC-20ERF400
CAT 50 AD/B
STANDARD
ER 20
N
Y
1.34"
4.00"
3.88"
20ERHN
FLUSH NUT
74 Ft. Lbs
BS-09
20ERHNW
C50BC-20ERF600
CAT 50 AD/B
STANDARD
ER 20
N
Y
1.34"
6.00"
3.88"
20ERHN
FLUSH NUT
74 Ft. Lbs
BS-09
20ERHNW
C50-25ERF400
CAT 50
STANDARD
ER 25
N
N
1.64"
4.00"
4.00"
25ERN
FLUSH NUT
95 Ft. Lbs.
BS-11
25ERNW
C50-25ERP412
CAT 50
STANDARD
ER 25
N
N
1.64"
4.12"
4.00"
25ERPN
POWER NUT
86 Ft. Lbs.
-
25ERNW
C50-25ERF600
CAT 50
STANDARD
ER 25
N
N
1.64"
6.00"
4.00"
25ERN
FLUSH NUT
95 Ft. Lbs.
BS-11
25ERNW
C50-25ERP612
CAT 50
STANDARD
ER 25
N
N
1.64"
6.12"
4.00"
25ERPN
POWER NUT
86 Ft. Lbs.
-
25ERNW
C50-25ERC622
CAT 50
STANDARD
ER 25
N
N
1.64"
6.22"
4.00"
25ERCN
COOLANT NUT
95 Ft. Lbs.
-
25ERNW
C50-25ERF800
CAT 50
STANDARD
ER 25
N
N
1.64"
8.00"
4.00"
25ERN
FLUSH NUT
95 Ft. Lbs.
BS-11
25ERNW
C50-25ERP812
CAT 50
STANDARD
ER 25
N
N
1.64"
8.12"
4.00"
25ERPN
POWER NUT
86 Ft. Lbs.
-
25ERNW
C50-25ERF1000
CAT 50
STANDARD
ER 25
N
N
1.64"
10.00"
4.00"
25ERN
FLUSH NUT
95 Ft. Lbs.
BS-11
25ERNW
C50-25ERP1012
CAT 50
STANDARD
ER 25
N
N
1.64"
10.12"
4.00"
25ERPN
POWER NUT
86 Ft. Lbs.
-
25ERNW
C50BC-25ERF400
CAT 50 AD/B
STANDARD
ER 25
N
Y
1.64"
4.00"
4.00"
25ERN
FLUSH NUT
95 Ft. Lbs.
BS-11
25ERNW
C50BC-25ERF600
CAT 50 AD/B
STANDARD
ER 25
N
Y
1.64"
6.00"
4.00"
25ERN
FLUSH NUT
95 Ft. Lbs.
BS-11
25ERNW
C50-32ERF400
CAT 50
STANDARD
ER 32
N
N
1.97"
4.00"
3.88"
32ERN
FLUSH NUT
125 Ft. Lbs.
BS-18
32ERNW
C50-32ERP412
CAT 50
STANDARD
ER 32
N
N
1.97"
4.12"
3.88"
32ERPN
POWER NUT
100 Ft. Lbs.
-
32ERNW
C50-32ERC422
CAT 50
STANDARD
ER 32
N
N
1.97"
4.22"
3.88"
32ERCN
COOLANT NUT
125 Ft. Lbs.
-
32ERNW
C50-32ERF600
CAT 50
STANDARD
ER 32
N
N
1.97"
6.00"
3.88"
32ERN
FLUSH NUT
125 Ft. Lbs.
BS-18
32ERNW
C50-32ERP612
CAT 50
STANDARD
ER 32
N
N
1.97"
6.12"
3.88"
32ERPN
POWER NUT
100 Ft. Lbs.
-
32ERNW
C50-32ERF800
CAT 50
STANDARD
ER 32
N
N
1.97"
8.00"
3.88"
32ERN
FLUSH NUT
125 Ft. Lbs.
BS-18
32ERNW
C50-32ERP812
CAT 50
STANDARD
ER 32
N
N
1.97"
8.12"
3.88"
32ERPN
POWER NUT
100 Ft. Lbs.
-
32ERNW
C50-32ERF1000
CAT 50
STANDARD
ER 32
N
N
1.97"
10.00"
3.88"
32ERN
FLUSH NUT
125 Ft. Lbs.
BS-18
32ERNW
C50-32ERP1012
CAT 50
STANDARD
ER 32
N
N
1.97"
10.12"
3.88"
32ERPN
POWER NUT
100 Ft. Lbs.
-
32ERNW
C50BC-32ERF400
CAT 50 AD/B
STANDARD
ER 32
N
Y
1.97"
4.00"
3.88"
32ERN
FLUSH NUT
125 Ft. Lbs.
BS-18
32ERNW
C50BC-32ERF600
CAT 50 AD/B
STANDARD
ER 32
N
Y
1.97"
6.00"
3.88"
32ERN
FLUSH NUT
125 Ft. Lbs.
BS-18
32ERNW
C50F-32ERF400
CAT 50 Simulfit
STANDARD
ER 32
Y
N
1.97"
4.00"
3.88"
32ERN
FLUSH NUT
125 Ft. Lbs.
BS-18
32ERNW
C50F-32ERF600
CAT 50 Simulfit
STANDARD
ER 32
Y
N
1.97"
6.00"
3.88"
32ERN
FLUSH NUT
125 Ft. Lbs.
BS-18
32ERNW
C50F-32ERF800
CAT 50 Simulfit
STANDARD
ER 32
Y
N
1.97"
8.00"
3.88"
32ERN
FLUSH NUT
125 Ft. Lbs.
BS-18
32ERNW
C50F-32ERF1000
CAT 50 Simulfit
STANDARD
ER 32
Y
N
1.97"
10.00"
3.88"
32ERN
FLUSH NUT
125 Ft. Lbs.
BS-18
32ERNW
C50-40ERF400
CAT 50
STANDARD
ER 40
N
N
2.47"
4.00"
4.10"
40ERN
FLUSH NUT
162 Ft. Lbs.
BS-10
40ERNW
C50-40ERP412
CAT 50
STANDARD
ER 40
N
N
2.47"
4.12"
4.10"
40ERPN
POWER NUT
146 Ft. Lbs
-
40ERNW
C50-40ERC422
CAT 50
STANDARD
ER 40
N
N
2.47"
4.22"
4.10"
40ERCN
COOLANT NUT
162 Ft. Lbs.
-
40ERNW
C50-40ERF600
CAT 50
STANDARD
ER 40
N
N
2.47"
6.00"
4.10"
40ERN
FLUSH NUT
162 Ft. Lbs.
BS-10
40ERNW
C50-40ERP612
CAT 50
STANDARD
ER 40
N
N
2.47"
6.12"
4.10"
40ERPN
POWER NUT
146 Ft. Lbs
-
40ERNW
C50-40ERC622
CAT 50
STANDARD
ER 40
N
N
2.47"
6.22"
4.10"
40ERCN
COOLANT NUT
162 Ft. Lbs.
-
40ERNW
C50-40ERF800
CAT 50
STANDARD
ER 40
N
N
2.47"
8.00"
4.10"
40ERN
FLUSH NUT
162 Ft. Lbs.
BS-10
40ERNW
C50-40ERP812
CAT 50
STANDARD
ER 40
N
N
2.47"
8.12"
4.10"
40ERPN
POWER NUT
146 Ft. Lbs
-
40ERNW
C50-40ERF1000
CAT 50
STANDARD
ER 40
N
N
2.47"
10.00"
4.10"
40ERN
FLUSH NUT
162 Ft. Lbs.
BS-10
40ERNW
C50BC-40ERF400
CAT 50 AD/B
STANDARD
ER 40
N
Y
2.47"
4.00"
4.10"
40ERN
FLUSH NUT
162 Ft. Lbs.
BS-10
40ERNW
C50BC-40ERF600
CAT 50 AD/B
STANDARD
ER 40
N
Y
2.47"
6.00"
4.10"
40ERN
FLUSH NUT
162 Ft. Lbs.
BS-10
40ERNW
C50F-40ERF400
CAT 50 Simulfit
STANDARD
ER 40
Y
N
2.47"
4.00"
4.10"
40ERN
FLUSH NUT
162 Ft. Lbs.
BS-10
40ERNW
C50F-40ERF600
CAT 50 Simulfit
STANDARD
ER 40
Y
N
2.47"
6.00"
4.10"
40ERN
FLUSH NUT
162 Ft. Lbs.
BS-10
40ERNW
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