Powerpackage line-Q (388 kB)
Powerpackage (3.0 MB)
Data Sheet 10.00 (1.4 MB)
Powerpackage EL (641 kB)
Powerpackage ZED (828 kB)
Powerpackage KT (801 kB)
The Powerpackage installation guidelines provide useful information about the utilisation of the Powerpackage as well as a description of the basic controls functions.
(See Data Sheet 10.00)
once the power stroke has been travelled, the stroke of the working piston must be limited. In forming operations such as riveting, stamping, stretching, etc., this is ensured by the nature of the application, where as in punching, the working piston can continue moving after the punching process.
(Pic. UDC: Tool in starting position UDC; UDC = upper dead centre)
(Pic. LDC: Tool after punching LDC; LDC = lower dead centre The tension of the rubber spring must be adapted to the punching process.)
This must be prevented by a stroke limiter in the tool. It can also be prevented by mounting the TOX®-Powerpackage so that the fast approach stroke together with the required power stroke is identical to the total stroke of the TOX®-Powerpackage e.g. S 8.32.6: required power stroke 4 mm, total stroke of TOX®-Powerpakkage 32 mm, gives a necessary fast approach of 28 mm. Fast approach 28 mm + power stroke 4 mm = total stroke 32 mm, which is then limited in the TOX®-Powerpackage.
In this case it is necessary to use an aluminium limit stop washer (please specify when ordering). If stroke limitation is not possible in the tool, the TOX®-Powerpackage version .51 with stroke adjustment can be used.
Note: an end of stroke hydraulic dampening type ZSD is also available for TOX®-Powerpackage cylinders with total stroke limiter (see page 20).
Generally care must be taken that the power stroke of the TOX®-Powerpakkage used for punching operations is only used to a maximum of 80%.
Example S 8.32.6 = power stroke 6 mm, used power stroke 80 % = 4.8 mm. For punching operations only TOX®- Powerpackages with integrated bypass ZLB, ZHD should be used.
Fastening: use only high-quality, high-tensile strength socket head cap screws to mount the TOX®-Powerpakkage, grade 12.9 screws.
Pressing force: specified at 10 bar resp. 6 bar compressed air in each case. The pressing force changes in linear relation to the compressed air. Example: S 8 at 10 bar 77 kN pressing force, at 5 bar 36 kN. Force values + 5 %. Minimum pressure 2 bar. By adding a pressure control valve, the TOX®-Powerpackage can be easily adjusted to the work to be performed. This means a considerable saving on energy costs.
Control: control is done via a 4/2 or 5/2 way valve, as for normal doubleaction pneumatic cylinders.
Speed: the speed can be regulated as required by installing one-way throttle in the fast approach stroke and return stroke conductor of the unit. The speed of the power stroke can also be regulated, e.g. for pressing in bushes, projecting, drawing, etc.
Attention: The return stroke speed of the working rod must be greater than the approach stroke speed.
If using a TOX®-Powerpackage type S, EL, line-Q type S with hydraulic return stroke damping ZHD and very short approach stroke, please contact TOX® PRESSOTECHNIK. The cross section of the valve must correspond with the linkage dimension of the TOX®-Powerpackage (linkage dimension “E”). The cross sections of the compressed air piping should be as large as possible. Otherwise the stroke speed of the cylinder will be reduced, i.e. the cylinder.
Measuring and control connection: available on the unit in the form of a screw connection. This enables the oil pressure, proportional to the pressing force, to be either indicated on a pressure gauge or transmitted to a pressure switch in order to generate a switching impulse. See accessories.
Temperature range: The TOX®-Powerpackage may be operated between Tmin = 10°C and Tmax = 60°C.
Maintenance: operated with slightly oiled, dry air.
Service: the unit can be easily dismounted should it be necessary to change the seals.
Change-over from fast approach stroke to power stroke takes place automatically according to the ram pressure principle. Valves included in TOX®-Powerpackage as standard feature. The speed of the change-over can be regulated with throttle X (picture 1).
Special change-over controls: the standard ram pressure changeover control can be replaced by a distance-dependent control. This should be used if: 1. the TOX®-Powerpackage is used with the piston rod pointing upwards and the tooling is heavy, 2. the fast approach stroke is interrupted due to fixture spring pressure, prior to the necessary power stroke (picture 2).
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