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CHUCK ACCESSORIES

CHUCK ACCESSORIES

ER SPRING COLLET

ER SERIES SPRING COLLET

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Products in detail

Brand：NTH

Advantage:
Anti-rust
Wear-resisting and Surface hardness improved.
Precision stability, good cleaning.

Smooth surface,Beautiful appearance.

High accuracy:5 μ

Material: JIS-SUJ2                     

Hardness:46-50HRC

Suitable for boring,milling,drilling,tapping,grinding,carving processing.

Model No. dh7 D D1 D2 L L1 L2 L3 Collapsible
Capacity
ER8 1.0-5.0 8 8.45 6.5 13.5 2.98 1.5 1.2 0.5
ER11 1.0-7.0 11 11.5 9.5 18 3.8 2.5 2 0.5
ER16 1.0-2.5 16 17 13.8 27.5 6.26 4 2.7 0.5
ER16 >2.5-10.0 16 17 13.8 27.5 6.26 4 2.7 1
ER20 1.0-2.5 20 21 17.4 31.5 6.36 4.8 2.8 0.5
ER20 >2.5-13.0 20 21 17.4 31.5 6.36 4.8 2.8 1
ER20 1.0-2.5 25 26 22 34 6.66 5 3.1 0.5
ER25 >2.5-16.0 25 26 22 34 6.66 5 3.1 1
ER25 2.0-2.5 32 33 29.2 40 7.16 5.5 3.6 0.5
ER32 >2.5-20.0 32 33 29.2 40 7.16 5.5 3.6 1
ER32 3.0-26.0 40 41 36.2 46 7.66 7 4.1 1
ER40 6.0-10.0 40 52 46 60 12.6 8.5 5.5 1
ER50 >2.5-20.0 50 52 46 60 12.6 8.5 5.5 2

Features：
Material：1 SUJ2
Hardness：HRC 46
Obliquity：8
Surface roughness is within RZ2.5
Concentricity is followed DIN standard
Clamping range: ER11=0.5mm;ER16,20,25,32,40=1mm
Inside hole is ground



Specification UNIT:mm

ER11 ER11 ER16 ER16 ER20 ER20 ER25 ER25 ER32 ER32 ER40 ER40
SET 13PCS SET 10PCS SET 12PCS SET 15PCS SET 18PCS SET 23PCS
NO RANGE mm NO RANGE mm NO RANGE mm NO RANGE mm NO RANGE mm NO RANGE mm
ER11-1 1.0-0.5 ER16-1 1.0-0.5 ER20-2 2.0-1.0 ER25-2 2.0-1.0 ER32-3 3.0-2.0 ER40-4 4.0-3.0
ER11-1.5 1.5-1.0 ER16-2 2.0-1.0 ER20-3 3.0-2.0 ER25-3 3.0-2.0 ER32-4 4.0-3.0 ER40-5 5.0-4.0
ER11-2 2.0-1.5 ER16-3 3.0-2.0 ER20-4 4.0-3.0 ER25-4 4.0-3.0 ER32-5 5.0-4.0 ER40-6 6.0-5.0
ER11-2.5 2.5-2.0 ER16-4 4.0-3.0 ER20-5 5.0-4.0 ER25-5 5.0-4.0 ER32-6 6.0-5.0 ER40-7 7.0-6.0
ER11-3 3.0-2.5 ER16-5 5.0-4.0 ER20-6 6.0-5.0 ER25-6 6.0-5.0 ER32-7 7.0-6.0 ER40-8 8.0-7.0
ER11-3.5 3.5-3.0 ER16-6 6.0-5.0 ER20-7 7.0-6.0 ER25-7 7.0-6.0 ER32-8 8.0-7.0 ER40-9 9.0-8.0
ER11-4 4.0-3.5 ER16-7 7.0-6.0 ER20-8 8.0-7.0 ER25-8 8.0-7.0 ER32-9 9.0-8.0 ER40-10 10.0-9.0
ER11-4.5 4.5-4.0 ER16-8 8.0-7.0 ER20-9 9.0-8.0 ER25-9 9.0-8.0 ER32-10 10.0-9.0 ER40-11 11-10
ER11-5 5.0-4.5 ER16-9 9.0-8.0 ER20-10 10.0-9.0 ER25-10 10.0-9.0 ER32-11 11-10 ER40-12 12-11
ER11-5.5 5.5-5.0 ER16-10 10.0-9.0 ER20-11 11-11 ER25-11 11-10 ER32-12 12-11 ER40-13 13-12
ER11-6 6.0-5.5     ER20-12 12-11 ER25-12 12-11 ER32-13 13-12 ER40-14 14-13
ER11-6.5 6.5-6.0     ER20-13 13-12 ER25-13 13-12 ER32-14 14-13 ER40-15 15-14
ER11-7 7.0-6.5         ER25-14 14-13 ER32-15 15-14 ER40-16 16-15
            ER25-15 15-14 ER32-16 16-15 ER40-17 17-16
            ER25-16 16-15 ER32-17 17-16 ER40-18 18-17
                ER32-18 18-17 ER40-19 19-18
                ER32-19 19-18 ER40-20 20-19
                ER32-20 20-19 ER40-21 21-20
                    ER40-22 22-21
                    ER40-23 23-22
                    ER40-24 24-23
                    ER40-25 25-24
                    ER40-26 26-25


Specification UNIT:mm

Model D1 L PCS/SET D:RANG SIZE N.W.(kg)
ER11 11.5 18 13pcs 1,1.5,2,2.5,3,3.5,4,4.5,5,5.5,6,6.5,7 0.3
ER11 11.5 18 7pcs 1,2,3,4,5,6,7, 0.2
ER16 17 27 10pcs 1,2,3,4,5,6,7,8,9,10 0.7
ER16 17 27 8pcs 3,4,5,6,7,8,9,10 0.6
ER16 17 27 12pcs 2,3,4,5,6,7,8,9,10,11,12,13 0.9
ER20 21 31 10pcs 4,5,6,7,8,9,10,11,12,13 0.8
ER20 21 31 15pcs 2,3,4,5,6,7,8,9,10,11,12,13,14,15,16 1.3
ER25 26 35 7pcs 4,6,8,10,12,14,16 1.35
ER25 26 35 18pcs 3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20 3.3
ER32 33 40 11pcs 4,5,6,7,8,9,10,12,13,15,16,18,20 2.8
ER32 33 40 6pcs 6,8,10,12,16,20 0.9
ER32 33 40 23pcs 4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26 6.5
ER40 41 46 15pcs 4,5,6,8,9,10,12,13,15,16,18,20,21,22,25,26 4.2
ER40 41 46 7pcs 6,8,10,12,16,20,25 2

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