Tectra Automation, part of the Hytec Group of Companies, has introduced the second generation EMC electromechanical cylinder from Bosch Rexroth, with expanded possibilities for use.
With hygienic design and IP56 protection class, these cylinders are ideal for applications with frequent cleaning cycles, such as those in the food industry.
While the new cylinder size increases the power density for feeding forces of up to 56 kN, an optional force sensor allows decentralized process controls without a higher-level control system.
To function, the axis penetrates the narrow working area and approaches different positions, or varies the pressing force: electromechanical cylinders combine the advantages of a slim cylinder with the possibilities provided by digital control of electrical drives.
The ready-to-install drive units consist of anodized aluminum profiles in ISO standard dimensions, with an integrated ball screw drive and cover variable-length strokes of up to 1 500 mm.
Hygienic design
In the newly-developed second generation, Bosch Rexroth has implemented the principle of hygienic design in the cylinder body – there are no recesses or slots in which dirt can be trapped and the screws on the end face can be optionally sealed.
Together with the version in IP65, which is also valid for the timing belt side drive, the EMC withstands frequent cleaning cycles and spray water.
Designed for use in applications with particularly aggressive cleaning agents, the version in IP65 + R offers a long service life with seals and scrapers made from chemically stable materials.
A pressure compensation port prevents the occurrence of overpressure or negative pressure in the cylinder for the versions in IP65.
Larger capacity
Additional size and optional force sensors The EMC100-XC-2 variant completes the product range (XC = extra capacity).
The EMC-100-XC is longer as the EMC-100-NN-2, a larger axial bearing and larger ball screw drive provide up to 56 kN of feeding force – at the same profile cross-section.
This widens the usage for Bosch Rexroth electromechanical cylinders from Tectra Automation towards more powerful applications in forming and machining.
Bosch Rexroth offers all EMC sizes with an optional force measuring pin.
This can be placed on the end of the piston rod as well as on the timing belt side drive.
The sensors transmit the values with a +/- 10V analog signal to the drive.
A Motion Logic System, which can be optionally integrated in the Bosch Rexroth drives, evaluates these signals and enables decentralized process control without a higher-level control system.
In addition, the certified Safety on Board safety functions, which are integrated in the drive, simplify proper implementation of the Machinery Directive with low engineering effort.
The new housing is equal in its dimensions to those of the first generation, ensuring interchangeability.
The technical data of the second generation is the same or better for all sizes, in comparison with the previous series.
As a function of the piston rod position, the new EMC catalogue contains new diagrams for the permitted radial piston rod force.
With the newly designed lubrication points, users can integrate the electromechanical cylinder in central lubrication concepts.
