BP-D BP-M
High precision power chuck Ø 220 - 320 mm ■ Large through-hole ■ 3 jaws ■ proofline ® chucks = fully sealed - low maintenance Application/customer benefits • General use on standard lathes due to the through-hole, but with advantage of minimum maintenance and use also in extreme environments • Longer life at high precision due to less wear • Fully sealed, ideal for dry machining of castings and forgings or if high pressure coolant is used
INCH SERRATION
METRIC SERRATION
BP-D: Master jaws with INCH SERRATION (1/16"x 90°) BP-M: Master jaws with METRIC SERRATION (1.5 mm x 60°) (suitable for japanese jaws) Technical features • Constant gripping force with permanent grease lubrication • Large through-hole compatible with the standard machines • Chuck body and internal parts case hardened • Proofline ® chucks = fully sealed - low maintenance Standard equipment
Ordering example 3-jaw chuck BP-D 220 / Z170
s
a l e
m a i
3-jaw chuck
1 set T-nuts and bolts 1 set soft top jaws
or
3-jaw chuck BP-M 220 / A6
Mounting bolts
Actual gripping force diagram
The data in the diagram refers 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.
110 100 130 120 150 140 170 160 180
320
260
60 50 40 30 20 10 70 80 90
Safety advice / danger of damage: When using taller / heavier jaws and / or clamping on a bigger diameter reduce draw pull / rotating speed accordingly.
220
0
500
1000 1500 2000 2500
3000
3200
3500 4000 5000
Speed (r.p.m.)
Technical data
SMW-AUTOBLOK Type
BP-D 220 BP-M 220
BP-D 260 BP-M 260
BP-D 320 BP-M 320
Number of jaws Through-hole Radial jaw stroke
3
3
3
52
66
95
mm mm mm
4
5
5
16 44
19 60
19 68
Axial piston stroke Max. actuating force* Max. gripping force*
kN kN
110
150
175
5000
4000
3200
Max. speed
r.p.m.
23
36
60
Weight (without top jaws)
kg
0.14
0.34
0.85
Moment of inertia
kg·m 2
SIN-S 100 / 125 VNK-T2 130-52
SIN-S 125 / 150 VNK-T2 150-67
SIN-S 125 / 150 VNK-T2 225-95
Recommended actuating cylinders without hole Recommended actuating cylinders with hole
77185122 77185222
77185126 77185226
77185132 77185232
Id. No. BP-D 3 jaws (Center mounting) Id. No. BP-M 3 jaws (Center mounting)
* For internal clamping reduce the draw pull by 30%.
SMW-AUTOBLOK 466
SMW-AUTOBLOK 468
SMW-AUTOBLOK 325
108 SMW-AUTOBLOK
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