IN-D IN-C
High precision power chuck Ø 500 - 800 mm
■ Closed center ■ 3 and 4 jaws
INCH SERRATION
TONGUE & GROOVE
Application/customer benefits • For large parts • Suitable for vertical machines IN-D: Master jaws with INCH SERRATION (3/32’’ x 90º) IN-C: Master jaws with TONGUE & GROOVE Technical features • Gripping force transmission via wedge hook
• Sealed against swarf and chips Standard equipment 3- or 4-jaw chuck 1 set T-nuts with bolts 1 set soft top jaws (not IN-C) Mounting bolts
Ordering example 3-jaw chuck IN-D 500 / A15 or 4-jaw chuck IN-C 630 / Z380
Actual gripping force diagram
The data in the diagram refer to 3-jaw chucks, newly maintained according to their service manuals using SMW-AUTOBLOK K67 grease. The static and dynamic gripping forces have been measured using standard soft top jaws, placed in a position not exceeding the outer diameter of the chuck.
120 100 140 160 180 220 200 240
630
Safety advice / danger of damage: When using taller / heavier jaws and / or clamping on a bigger diameter reduce draw pull / rotating speed accordingly.
800
500
80 60 40 20
F G
F
0
400
800
1200
1600
Speed (r.p.m.)
Technical data
SMW-AUTOBLOK Type
IN-D 500 IN-C 500
IN-D 630 IN-C 630
IN-D 800 IN-C 800
Number of jaws Radial jaw stroke Axial piston stroke Max. draw pull* Max. gripping force*
3
4
3
4
3
4
mm mm
8.5
8.5
10 38
10 38
10 38
10 38
32
32
kN kN
100 240
100 240
100 240
100 240 850 325
100 240 900 320 23.8
100 240 750 550
Max. speed
r.p.m.
1500
1200
1100 220 10.8
Weight (without top jaws)
kg
130
180
Moment of inertia
kg·m 2
4.2
5.9
16
44
Recommended actuating cylinders
Type
SIN-S 150 / 175 / 200
SIN-S 150 / 175 / 200
SIN-S 150 / 175 / 200
Id. No. IN-D (Center mounting) Id. No. IN-C (Center mounting)
77122150 77128250
77122550 77128650
77122163 77128263
77122563 77128663
77122180 77128280
77122580 77128680
* For internal clamping reduce the draw pull by 30%.
SMW-AUTOBLOK 476
SMW-AUTOBLOK 478
SMW-AUTOBLOK 335
80 SMW-AUTOBLOK
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