SF-RAZ2G
2 Position hydraulic ring indexing chuck ■ 3 self-centering and 3 compensating jaws ■ Very compact design ■ Fully automatic and controlled indexing ■ Hydraulic actuation Application/customer benefits • Machining of couplings in one set-up • Indexing 180° in 2 seconds • 6-jaw clamping for perfect roundness of the coupling = ideal for premium threads
TONGUE & GROOVE
• High-Low clamping (roughing - finishing) • Central coolant supply available on request Technical features
• Better chuck to workpiece dia. ratio • Less chuck weight on the spindle • Extremely accurate and rigid indexing mechanism with locking system free of clearance • All functions controlled by proximity switches
• For external clamping only • Automatic central lubrication Standard equipment Chuck with mounting bolts
Ordering example SF-RAZ2G 710 Accessories Hydraulic manifold including electric manifold, hose kit
Machining of a coupling in 1 set-up:
180°
Picture 1 Clamping the coupling on the outside diameter with 6 jaws (3 self centering and 3 compensating jaws) and machining the thread on side 1.
Picture 2 Indexing the chuck 180° with the coupling remaining clamped.
Picture 3 After indexing 180°, machining the thread on side 2.
Picture 4 3 self centering jaws center and clamp the coupling.
Picture 5 When the coupling is centered and clamped, 3 compensating jaws clamp the coupling additionally to distribute the total clamping force onto 6 jaws = less deformation of the coupling / perfect roundness of thread.
Technical data SMW-AUTOBLOK Type Id. No.
SF-RAZ2G 710-220 SF-RAZ2G 780-290 SF-RAZ2G 880-390 SF-RAZ2G 1100-570 054720 055170 054819 on request*
Number of jaws
710 3+3
780 3+3
880 3+3
3+3
Chuck O.D.
mm mm
1.100
Stroke per jaw Pressure max .
10 70
10 70
10 70
10 70
bar kN
175 220
175 290 900
175 390 700
175 570
Clamping force at 50 bar Clamping diameter max.
mm
1100
(*)
Speed max.
r.p.m
800
~ 1.015
~ 1.380 13 3/8“
~ 2.155
Weight
kg
7 1/2" 14.75
9 5/8“
20 31
Coupling size / label size
inch mm
20
25
Wall thickness (calc.)
* Detailed dimensions on request.
396 SMW-AUTOBLOK
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