Electric cylinder series ELEKTRO
Electric axis – ELEKTRO SVAK SERIES
This belt-driven rodless electric actuator is characterised by the fact that the motor and reducer unit is integral with the carriage, instead of being fitted to one end of the extruded section.
This solution is known as “cantilever”. In the typical application the carriage is fixed while the extruded section moves.
The SVAK can be used either horizontally or vertically, but the most common use is in vertical applications, which explains why the motor is supplied complete with a brake that causes the axis to remain still even when it is not electrically powered.
The SVAK can be applied to the SHAK GANTRY series to obtain an X-Y-Z
Cartesian manipulator robot featuring high performance and rigidity.
The SVAK uses the universal V-Lock modular system for fixing the carriage to external auxiliaries and the various components to one end of the extruded section. The sides of the extruded section, which is made of anodised aluminium, houses two hardened and ground guides that slide on adjustable wheels that are integral with the carriage. The carriage is moved by a toothed belt, complete with a tensioning system. Guide lubrication nozzles are also provided on the carriage.
A BRUSHLESS motor with a toothed belt 1:2 gear speed reducer for the pulleys was also chosen. This design was opted for because it ensures excellent load capacities without sacrificing dynamics and the typical speed of this product. In addition to the standard drive proposed in the catalogue, it is also possible to customise the cylinder by using other motors.
The homing position is detected by an inductive proximity sensor included in the supply.
A cable guiding system with cable-carrying chain and mounting bracket is also available on request as an accessory.
Electric axis – RODLESS ELEKTRO BK SERIES
Belt-driven rodless electric axis with a V-Lock interface.
The structure features an extremely lightweight yet high-strength anodised aluminium extruded profile.
The typical V-Lock dovetail is obtained at the base of the extruded body ensures easy installation using QS elements; at both sides there are grooves for the installation of the fixing bracket of the (optional) proximity switch that detects the position of the slide.
The slide is moved by means of the polyurethane toothed belt with steel cables.
The parabolic profile of the belt tooth combines with the anti-friction nylon coating to enhance efficiency, reduce the level of noise and vibration from transmission gears.
The slide interface is characterised by the V-Lock profile complete with M5 threaded holes, pinholes and key seats, which guarantees numerous fixing options.
Two different variants of the in-line guiding system are available: the version Medium uses casters running along hardened and tempered steel guides with double-row ball bearings running along the specific H&T steel rail; the version Heavy, high-efficiency, consists of a guiding system with a rail and ball recirculation pads.
Different motor drives are available, both BRUSHLESS and STEPPING, with optional motor brake and/or built-in encoder.
The versions with a BRUSHLESS motor can be equipped with a speed gearbox.
The electric axis is also available without motor drive or, on request, with modules for interfacing with motors from the trade.
The motors can be installed on all the four hubs of the heads; the position can be changed at any time without requiring any additional operation.
A conversion kit for the installation of the gantry system starting from a single axis is also available.
Electric axis – RODLESS ELEKTRO SK SERIES
Electric axis without screw piston rod, with V-Lock interface.
The cylinder frame is made of anodized extruded solid aluminium, which gives the cylinder optimal torsional and flexural rigidity. The typical V-Lock dovetail is provided on three sides of the channel for easy fixing with QS elements.
The carriage features an interchangeable fixing interface plate, which is available with V-Lock axial or V-Lock orthogonal ports or in the blank type for custom solutions.
The carriage is driven by two sturdy pre-loaded ball recirculation bearings that ensure great accuracy of movement.
Threaded holes for the lubrication of the guides and ball recirculation screws are provided on both sides of the carriage.
The carriage is driven by a system consisting of a hardened and tempered screw and a ball recirculation lead nut. The screw is pre-stressed with an elastic load device by means of cup springs in order to reduce vibration and hence noise level and the useful life of the system.
A series of slots for the fixing of magnetic sensors are provided on the two sides of the liner.1
Various BRUSHLESS and STEPPER motor drives are available with optional motor brake and/or built-in encoder.
The cylinder can also be supplied without motor drive or, on request, with modules for interfacing with motors from the trade.
The motors can be installed in line with the liner or geared using toothed belt transmission gears.
Electric axis - ELEKTRO SHAK SERIES
The cylinder structure features a sturdy anodised aluminium extruded profile to ensure optimal rigidity. The typical V-Lock dovetail (no grooves) is provided for easy installation using QS elements. The V-Lock interface with a dovetail and standard grooves is mounted on the moving plate to fix the other components using K or QS elements. The slide is moved by means of adjustable casters running along hardened and tempered guides inserted into the extruded profile, to obtain a rigid system with adjustable clearance. Guide lubrication nipples are also mounted on the slide plate. The slide is driven by a reinforced belt that is in turn operated by a pulley keyed onto the motor; a mechanical belt-tensioning system is mounted on the cylinder. Different drives are available, both brushless and stepper. The versions with a brushless motor can be equipped with a 1:3 speed gear unit, when you want to make the most of the available torque.
In addition to the standard drives included in the catalogue, custom cylinder can also mount other types of motor. The homing position is identified by a inductive sensor included in the supply.
Two different size are available, SHAK 340 and SHAK 470, with pre-set standard strokes. For each size it is possible to choose side on which to mount the motor (4 positions). A version with a smooth tree-type output, mounted in a pre-set position, is also available. The SHAK cylinder can be mounted both horizontally and vertically. With vertical installation, it is advisable to use motors with a holding brake that only activates in the event of a power failure but not when there is a motor overload. For the correct operation of the brake, it is necessary to meet the limits required by the axial load curves according to the speed. Among the accessories available there is a cable guiding system with a handy cable channel and bracket.
Electric axis – SERIES ELEKTRO SHAK GANTRY
The gantry consists of two parallel belt-driven axes, of which one acts as drive axis (drive X-axis) and the other as driven axis (geared X-axis). Both axes are connected one to the other by means of an anodized aluminium shaft and two flexible couplings that compensate for any minor misalignments between the axes caused by the support base. The shape of both coupling and drive shaft is designed to facilitate disassembly.
The carriages of the drive axis and the driven axis (both with a V-Lock interface featuring a typical shape and grooves) move synchronously thanks to the drive shaft. On the extruded body of both axes, on the side opposite to the carriages, the typical (no grooves) V-Lock dovetail is provided for easy fixing to the support to the support structure using QS elements. On the carriages of the X-axes another SHAK electric axis (Y-axis) is mounted transversally. The motion is the same as for the single axis and has the same advantages: rigid structure, movement of the carriage with adjustable clearance, the presence of guide lubrication nozzles, the possibility of adjusting belt tensioning.
A BRUSHLESS motor with a 1:5 speed gear unit has been adopted as it ensures optimal load capacity without sacrificing the dynamic and speed performance typical of this product.
In addition to the standard drives proposed in the catalogue, the cylinder can be customised with the installation of other motors.
The homing position is identified by an inductive proximity sensor included in the supply.
Two sizes are available, SHAK-GANTRY 340 and SHAK-GANTRY 470, with standard pre-set strokes. For each size, it is also possible to choose on which side to mount the motors (right- or left-hand).
The Elektro SHAK-GANTRY was designed and optimized for horizontal installation. On request, the motors can be supplied with a holding brake, which activates only in the event of a power failure but not when there is a motor overload. For correct operation of the brake, it is important to comply with the limits required by the axial load curves according to speed. Among the accessories available there is a cable-guiding system with a handy cable channel and bracket (in the version with motors on the left-hand side).
Electric cylinder - ELEKTRO ISO15552 SERIES
An electric cylinder with a connection interface in accordance with ISO 15552.
The piston rod extension is controlled by a system with a hardened screw and recirculating ball screw. The piston has a guide strip calibrated to reduce to a minimum play with the barrel and hence vibration during ball screw rotation.
The cylinder can be equipped with a built-in non-rotating system featuring two opposing slides that run in separate longitudinal slots in the barrel.
The piston comes with magnets and the barrel has longitudinal slots for housing sensors. The piston rod has increased outside diameter and thickness to make it extra rigid and more resistant to radial and peak loads.
A system for greasing the screws is included. Numerous standard accessories for pneumatic cylinders, including intermediate hinge, can be used for mounting the cylinder. The motor can be selected from an optimised range, which encompasses both STEPPING and BRUSHLESS motors.
There is a version for in-line assembly, where the drive shaft is jointed directly onto the screw. There is also a geared motor version, where transmission is provided by pulleys and a cog belt with a transmission ratio of 1:1.
Suitable motor drives are provided.
Special adaptor flanges and joints can be provided if the customer wishes to use a particular make of motor.
Electric cylinder series ELEKTRO ROUND DC
In the ELEKTRO ROUND DC cylinder, the forward movement of the piston rod is obtained via an acme screw and a self-lubricating technopolymer nut. This piston has a guide ring that is calibrated to minimize the backlash with the cylinder liner and reduce vibration during rotation of the screw.
The piston also comes with a magnet for magnetic sensors.
The system is driven by a direct current motor available in two versions, 12 and 24VDC. The position of the motor can be controlled using an optional encoder. A resettable optional fuse can be inserted in the cylinder for motor thermal overload protection. The motor used has a planetary gearbox with a 1/13 or 1/25 ratio. Depending on the configuration (screw pitch and gear ratio), this cylinder can be either irreversible (supporting the load with the motor off) or reversible under load. Both versions are supplied without piston rod anti-rotation device, which will be provided by the customer outside the cylinder.
It is available in two versions:
- with an in-line motor, where the motor shaft is connected directly to the screw via a coupling
- with a geared motor, where the transmission of motion is ensured by three cogwheels with a ratio of 1:1.
This cylinder is designed for use with IP65 protection rating.
The solutions with the acme screw are generally suitable for applications where the number of operations per time unit is reduced; the degree of accuracy is not particularly high due to heating of the screw-leadscrew assembly; wear over time does not create inconveniences, no high forces and speeds are required at the same time.