AL-D AL-M
High precision power chuck Ø 125 - 400 mm
■ Closed center ■ Long stroke ■ 2 and 3 jaws (4 jaws only Ø 400 mm)
INCH SERRATION
METRIC SERRATION
Application/customer benefits • For chucking parts • Suitable for vertical machines • Long clamping stroke (possibility to clamp 1st and 2nd operation with the same jaws) AL-D: Master jaws with INCH SERRATION (1/16” x 90°, 3/32“ x 90°) AL-M: Master jaws with METRIC SERRATION (1.5 mm x 60°) (suitable for japanese chuck top jaws) Technical features • EXTRA long jaw stroke • Gripping force transmission via wedge hook • Case hardened body to assure greatest precision and long chuck life Standard equipment
Ordering example 3-jaw chuck AL-D 210 / A6 or 2-jaw chuck AL-M 250 / Z220
2-, 3- or 4-jaw chuck 1 set T-nuts with bolts 1 set soft top jaws Mounting bolts
Actual gripping force diagrams
95
160 180
80
140
120
60
100
210
400
80
40
315
250
125
60
F G
F G
165
40
20
F
F
20
0
1000
2000
3000 3600
0
1000 2000 3000 4000 5000
6000
Speed (r.p.m.)
Speed (r.p.m.)
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 diagrams 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.
Technical data
SMW-AUTOBLOK Type
AL-D 125 AL-M 125 AL-D 400 AL-M 400 2323232323234 6 7 8.5 10 12 13 15 17 21 25 30 33 AL-D 165 AL-M 165 AL-D 210 AL-M 210 AL-D 250 AL-M 250 AL-D 315 AL-M 315 17 25 20 30 35 53 45 68 54 80 67 100 100 30 45 36 54 63 95 83 125 97 145 120 180 180 6000 5200 4500 3600 2800 2000 1700 5.5 9.5 19 32 56 84 0.011 0.032 0.105 0.26 0.69 1.6
Number of jaws Radial jaw stroke Axial piston stroke Max. draw pull* Max. gripping force*
mm mm
kN kN
Max. speed
r.p.m.
Weight (without top jaws)
kg
Moment of inertia
kg·m 2
Recommended actuating cylinders
Type
SIN-S 85 / 100 SIN-S 100 SIN-S 100 / 125 SIN-S 125 / 150 SIN-S 125 / 150 SIN-S 150 / 175
Id.No. AL-D 2 jaws (Center mounting) Id.No. AL-D 3 jaws (4 jaws 77160540) (C. m.) Id.No. AL-M 2 jaws (Center mounting) Id.No. AL-M 3 jaws (4 jaws 77160640) (C. m.) * For internal clamping reduce the draw pull by 30%.
77160113 77160313 77160213 77160413
77160116 77160316 77161516 77161616
77160121 77160321 77161521 77161621
77160125 77160325 77161525 77161625
77160131 77160331 77160231 77160431
77160140 77160340 77160240 77160440
SMW-AUTOBLOK 476
SMW-AUTOBLOK 478
SMW-AUTOBLOK 335
56 SMW-AUTOBLOK
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