TPT-RC
High precision 2+2 jaw power chuck with self-centering independent jaw movement Ø 1000 - 2000 mm
2+2 independent jaw movement TONGUE & GROOVE Radial setting of jaws
■ Closed center ■ Tongue & groove
Application/customer benefits • High versatility on large vertical lathes to clamp round, elliptical, irregular, square and rectangular workpieces, self centering in two axes • External or internal clamping Technical features • 2+2 jaw chuck with 2 independent self-centering jaw drives (two wedge drives)
• Jaw No. 1 + 3 (clamping jaws): power operated • Jaw No. 2 + 4 (centering jaws): power operated
• Internal parts case hardened for high precision and long life • With manual radial setting of jaws for the 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 2+2 jaw chuck
Power chuck TPT-RC 2+2 1000 Z520
1 set of soft top jaws Mounting bolts
Using the double centering it is possible to easily clamp a wide variaty of component shapes: round, square, ring, rectangular, oval and irregular
Two independent wedge drives Operated by independent double piston cylinders. Jaws 2 and 4 are power operated to center the component in one axis and to drive the component. Jaws 1 and 3 are power operated to center the component on the second axis and to drive the component.
Since both pairs of jaws are power operated the chuck can reach high speeds. See specific draw pull, gripping force and maximum speed in the technical data table below.
Technical data
SMW-AUTOBLOK Type Number of jaws Radial jaw stroke + Radial setting stroke
TPT-RC 1000 2+2
TPT-RC 1250 2+2
TPT-RC 1400 2+2
TPT-RC 1600 2+2
TPT-RC 2000 2+2
mm mm
17 + 30
17 + 30
20 + 40
20 + 40
20 + 40
Wedge stroke
30
30
40
40
40
Weight (plain back without top jaws)
kg
750
940 180
1460
1800
2760 1370
Moment of inertia
kg·m 2
86
355
565
Id. No. TPT-RC (center mounting)
77137239
77137249
77137255
77137263
77137279
TWO independent wedge drives
SMW-AUTOBLOK Type Number of jaws Max. draw pull* (wedge 1, jaw 1 + 3) Max. draw pull* (wedge 2, jaw 2 + 4)
TPT-RC 1000 2+2
TPT-RC 1250 2+2
TPT-RC 1400 2+2
TPT-RC 1600 2+2
TPT-RC 2000 2+2
kN kN kN kN
100 100 140 140 550
100 100 140 140 450
130 130 190 190 450
130 130 190 190 400
130 130 190 190 280
Max. gripping force jaw 1 + 3 (power operated) Max. centering force jaw 2 + 4 (power operated)
Max. speed
r.p.m. Id.No.
* For internal clamping reduce the draw pull by 30%. Recommended actuating cylinders** DCE 240-240
33982401
33982402
** SMW-AUTOBLOK 348:
Technical details of DCE cylinders see general catalog.
SMW-AUTOBLOK 482
SMW-AUTOBLOK 476
SMW-AUTOBLOK 335
214 SMW-AUTOBLOK
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