TPT-C
High precision 2+2 jaw power chuck with self-centering independent jaw movement Ø 210 - 400 mm
■ Closed center ■ Tongue & groove
2+2 independent jaw movement TONGUE & GROOVE
Application/customer benefits • Clamping of rectangular and square workpieces, self-centering in two axes 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): spring operated or optionally power operated* • Chuck body and internal parts are case hardened for high precision and long life Standard equipment* Ordering example 2+2 jaw chuck Power chuck TPT-C 250 A8 Mounting bolts or Power chuck TPT-C 400-Z
A One wedge drive Operated by standard closed center cylinders.
B Two independent wedge drives* Operated by independent double piston cylinders. Jaws 2 and 4 are power operated (using the small cylinder) to center the component in one axis. Jaws 1 and 3 are also power operated (using the large cylinder) to center the component on the second axis and to apply the gripping force to drive the component. Since both pair of jaws are power operated the chuck can reach higher speeds. See specific draw pull, gripping force and maximum speed in the technical data table below.
Jaws 2 and 4 are spring operated to center the component in one axis. Jaws 1 and 3 are power operated by the cylinder to center the component on the second axis and to apply the gripping force to drive the component. Only for external clamping (on request internal clamping). See specific draw pull, gripping force and maximum speed in the technical data table below.
*Note:
The chucks are always delivered as „one wedge drive“ version: To use them as „two independent wedge drives“ version, just remove the internal spring assembly according to instruction manual
Technical data
SMW-AUTOBLOK Type Number of jaws Radial jaw stroke
TPT-C 210 2+2
TPT-C 250 2+2
TPT-C 315 2+2
TPT-C 400 2+2
mm mm
4
5
5
7
Wedge stroke
19 21
24 32
24 48
33
Weight (plain back without top jaws)
kg
102 1.95
Moment of inertia
kg·m 2
0.12
0.27
0.64
Id. No. TPT-C (center mounting)
77992105
77992513
77993121
77994013
A ONE wedge drive
SMW-AUTOBLOK Type Number of jaws Max. draw pull (clamping wedge, jaw 1 + 3) Max. gripping force jaw 1 + 3** (power operated) Max. centering force jaw 2 + 4 (spring operated)
TPT-C 210 2+2
TPT-C 250 2+2
TPT-C 315 2+2
TPT-C 400 2+2
kN kN kN
29 72 11
39 98 15
45
60
115
150
15
24
Max. speed
r.p.m. Type
2500
2400
2000
1500
Recommended actuating cylinders
SIN-S 125
SIN-S 125
SIN-S 150
SIN-S 150
B TWO independent wedge drives SMW-AUTOBLOK Type Number of jaws Max. draw pull (clamping wedge, jaw 1 + 3) Max. draw pull (centering wedge, jaw 2 + 4) Max. gripping force jaw 1 + 3** (power operated) Max. centering force jaw 2 + 4 (power operated)
TPT-C 210 2+2
TPT-C 250 2+2
TPT-C 315 2+2
TPT-C 400 2+2
kN kN kN kN
25 19 72 55
34 25 98 72
40 30
50 35
115
150 100
85
Max. speed
r.p.m. Type
4300
3400
2700
2000
Recommended actuating cylinders***
DCE 64 / 64
DCE 64 / 64
DCE 64 / 64
DCE 64 / 64
** For internal clamping reduce the draw pull by 30%.
*** SMW-AUTOBLOK 338:
Technical details of DCE cylinders see general catalog.
SMW-AUTOBLOK 472
SMW-AUTOBLOK 466
SMW-AUTOBLOK 325
200 SMW-AUTOBLOK
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