Hitchin-based Roemheld UK Ltd (
www.roemheld.co.uk) has launched its Flexline rapid-clamping system with ‘push chain’ for the automatic clamping of dies on press rams.
Thanks to its modular design and large number of possible variants, Flexline can be used on virtually all press models and for any die.
It is suitable for initial installation or retrofitting to individual presses, as well as for the automation of entire press lines.
According to Roemheld, it is possible to combine the rapid clamping system with a range of clamping elements, so that it can be used with dies of varying geometries and clamping edge dimensions. Numerous monitoring options, different adjustment tracks and versions for varying slot widths accommodate a range of applications.
The core of the system comprises electro-mechanically driven push chains that automatically move the selected clamping element from the parking position to the clamping edge of the ram.
The central control unit applies the pressure evenly for all clamping elements, thereby ensuring uniform securing of the die.
Roemheld’s Flexline system can be fitted with hollow-piston and spring-clamping cylinders, as well as sliding clamps. Both single-action and dual-action versions are available with maximum clamping forces of up to 104kN per clamping point.
The spring-clamping cylinder is designed for the unpressurised long-term clamping of dies, and it is suitable for applications in high temperatures.
Different diameters, operating pressures and clamping forces can be selected when using sliding clamps and hollow-piston cylinders. Four different versions of the latter are available, including a compact single-action cylinder with 90mm diameter.
At an operating pressure of 400 bar, a retention force of 104kN can be achieved.The larger cylinder, with a diameter of 105mm, is self-locking and achieves similar clamping forces but at considerably lower pressures (up to 245 bar).
An automatic motion sequence and integrated control systems ensure secure operation, while an inductive sensor signals whether the clamping element is in the parking or securing position. Micro-switches that indicate the stopping points and end of the chain can be specified.
Flexline systems are available for four different T-slot widths. Both the die position monitor and the drive motor can be fitted on either the left- or right-hand side.
Roemheld can also provide customised solutions, including versions for use in tight spaces or with different drives and clamping elements.