ZHVD-SZ Rotating hydraulic cylinder with 2 independent pistons
■ Up to 80 bar ■ Central bore for air / coolant / oil ■ Stroke control via proximity switch or LPS 4.0 Application/customer benefits • Actuation of retractable jaw chuck with power operated face drivers (type W / GSA) • Actuation of power chuck with part-ejector • Actuation of power chucks with retractable axial stop / finger chucks with power operated centering fixture / chuck type TPT-C with 2+2 actuation Technical features • Double piston cylinder with 4 way oil manifold for separate actuation of the cylinders • Horizontal or vertical installation • Stroke control on each cylinder, safety valves on the big cylinder (Piston 1) • Central bore for coolant, oil or air with thread for rotary union • Mounting from the rear side with bolts • A 10 μm filter in pressure line is requested. Use oil HM32 ISO 3448 • Pressure range 8 - 80 bar Standard equipment Ordering example Double piston cylinder with shift ring Double piston cylinder ZHVD-SZ 068-17 Mounting screws or Stroke control on each cylinder Double piston cylinder ZHVD-SZ 068-17 Proximity bracket (without proximity switches) with rotary union (optional)
Technical data
ZHVD-SZ 068-17
ZHVD-SZ 110-25
ZHVD-SZ 240-40
SMW-AUTOBLOK Type Id. No. Piston stroke
044429
044577 90 / 15 110 / 88
045220 105 / 20 241 / 144 222 / 133
mm
70 / 15 68 / 54 60 / 48 16 / 12 14 / 11
Piston area A / piston force max. Piston area B / piston force max. Piston area C / piston force max. Piston area D / piston force max.
cm 2 / kN cm 2 / kN cm 2 / kN cm 2 / kN
92 / 73 25 / 20 21 / 16
40 / 24
36 / 21.6
Speed max.
5000
4000
4000
r.p.m.
Weight
26
37
68
kg
Moment of inertia
0.065
0.125
0.42
kg·m 2
Operating pressure max. Operating pressure min.
80
80
60
bar bar
8 - 10
8 - 10
8 - 10
Oil leakage (*)
3
3
3
dm 3 / min
* Total at 30 bar / 50 °C. Important: On higher pressure the leakage increases proportionally. On higher oil temperature the leakage increases over proportionally (the use of an oil cooler is recommended). When designing / checking the hydraulic unit please ask for our data sheets.
ZHVD-SZ cylinder with retractable jaw chuck and power operated face driver
Linear stroke control LPS 4.0 (option)
Rotary union (option)
Piston 2 for actuation of the driving pins in the face driver
Piston 1 for actuation of the chuck and clamping jaws
338 SMW-AUTOBLOK
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