IR-C
High precision power chuck Ø 660 - 2000 mm
■ Radial setting of jaws ■ Closed center ■ 4 jaws (all diameters)
TONGUE & GROOVE
Application/customer benefits • Clamping of large square and irregular parts using 2 or 4 jaws self centering • Suitable for vertical machines thanks to the front protection of the slide ways • Manual radial setting of master jaws • TONGUE & GROOVE (type “American Standard”) Technical features • Gripping force transmission via wedge hook • Manual radial setting of master jaws for workpiece centering • Protection from contamination with seals along the master jaw profiles • Possibility to use jaw boxes for manual clamping mounted on the T-slots between the master jaws Standard equipment Ordering example 4-jaw chuck 4-jaw chuck IR-C 1600 / Z720 1 set of soft top jaws Mounting bolts Grease gun
Actual gripping force diagrams
Soft and hard top jaws for IR-C
120 100 160 200 240 320 280 360 400 120 100 160 200 240 320 280 360 400
110
62 55
1400-IR-C
F G
F
1600-IR-C
0
100
200
300
400
13086310
1000-IR-C
13046310
F G
1250-IR-C
Soft top jaws
Hard top jaws
F
70
43
32
0
100
200
300
400
500
600
100 120 140 160 200 180 220 240
F G
F
800 IR-C 660 IR-C
0
200
400
600
800 900
Speed (r.p.m.)
12045050
12087111
Safety advice / danger of damage: When using taller / heavier jaws and / or clamping on a bigger diameter reduce draw pull / rotating speed accordingly.
The data in the diagram refer to 4-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.
Technical data
SMW-AUTOBLOK Type Number of jaws Radial jaw stroke (+ manual setting)
IR-C 660 IR-C 800 IR-C 1000 IR-C 1250 IR-C 1400 IR-C 1600 IR-C 2000 4 4 4 4 4 4 4 20 + (20) 20 + (20) 23 + (30) 23 + (30) 24 + (40) 24 + (40) 24 + (40) 50 50 57 57 60 60 60 120 120 180 180 200 200 200 215 215 320 320 360 360 360 750 600 550 450 380 340 280 390 490 660 900 1425 1765 2730 16 40 84 178 347 562 1360 12087111 12087111 13086310 13086310 13086310 13086310 13086310 12045050 12045050 13046310 13046310 13046310 13046310 13046310 SIN-S 150-175-200 SIN-S 150-175-200 SIN-S 250 SIN-S 250 SIN-S 250 SIN-S 250 SIN-S 250
mm mm
Axial piston stroke Max. draw pull* Max. gripping force*
kN kN
Max. speed
r.p.m.
Weight (without top jaws)
kg
Moment of inertia
kg·m 2 Id. No. Id. No.
Hard, reversible top jaw (piece)
Soft top jaw (piece)
Recommended actuating cylinders
Type
Id. No. IR-C (Center mounting)
77996601 77998024 77137439 77137449 77137455 77137463 77137479
* For internal clamping reduce the draw pull by 30%.
92 SMW-AUTOBLOK
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