Linear electric - Import export

Hochrainer - Handling and gantry systems

Electric cylinders are self-locking. So they do not need energy when they stand still. This makes the electric cylinders to be an interesting alternative to pneumatic and hydraulic actuators. Powerful DC motors, signal lines, potentiometers and Hall-ICs for position indication, as well as integrated end switches uncomplicatedly serve for meeting the most frequent requirements.

From here onwards, we are only concerned with the linear characteristics (linearity). Relationships must be suitably adapted for applications with non-linear characteristics (conformity) but there are no essential differences. As already mentioned in Section 2, the required linearity values can only be utilized so long as the signal output by the sensor "potentiometer" carries no current. We have now to consider the effect of wiper current on linearity. Fig. 10a illustrates the functional relationship between wiper current, contact resistance and linearity error. As is shown by the example in Fig. 10b (Characteristic 4), with a wiper current of 10 µA and a contact resistance of 10 kOhm, a potentiometer which has a resistance of 2 kOhm already has linearity error of 1.1 %. A similar situation arises with an ohmic load. This clearly shows how important are the roles played by both wiper current and contact resistance. Fig. 10a Fig. 10b

The linear rod type actuators from the RoboCylinder series are available with 24V stepper motor, 24V servo motor or 230V servo motor. They are characterized by their compact design, mechanical stability and high positioning accuracy of up to ± 5 μm. The linear actuators are available in two design variants: As a directly driven rod type with motor in extension of the cylinder longitudinal axis and as a shorter variant with deflection, in which the motor and axis are parallel to each other. Both variants are also suitable as heavy-duty electric actuators for high payloads. In addition to the standard version, many linear actuators are also available as cleanroom versions and for special environmental conditions also as dustproof, splashproof or waterproof models with IP54 to IP67 protection.

Electric linear actuators from IAI are available as rod, slider and slide table types as well as with toothed belt drive. They are equipped with a stepper motor or servo motor and often already have a battery-free absolute encoder as standard. On request, they can also be supplied without an electric drive unit. The product range of linear actuators consists of the RoboCylinder series, which are characterised by high user-friendliness, simple programming as well as compact design. Their focus is on covering common customer requirements and are therefore relatively inexpensive. Electric slider type actuators and axes with toothed belt drive from the IntelligentActuators product line complete the product portfolio. They meet higher requirements than RoboCylinders in terms of payload, speed, acceleration and precision.

RoboCylinder & IntelligentActuator Slider Types Slider type actuators are mainly used for transporting and positioning workpieces horizontally or vertically. To meet the requirements in terms of payload, speed, spindle pitch, precision and much more, IAI offers many choices in both the RoboCylinder and IngelligenActuator series. These include extra-wide slide axes whose base frames have increased bending strength. Many linear actuators are available in two design variants: As a directly driven slider type with motor in extension of the cylinder's longitudinal axis and as a shorter version with angled motor if the available working space is limited.

Efficient positioning, assembly and handling of workpieces are key components in many manufacturing companies to meet growing cost pressures. Replacing pneumatic cylinders with electric linear drives can save up to 90 % of energy consumption. In addition, there are numerous advantages in motion control. IAI has the world's largest portfolio of electric actuators with 24 or 230 volt stepper or servo motors. The electric cylinders perform linear, rotary or gripping movements and are characterised by the uniquely compact design including motor and encoder as well the high quality. In addition to the standard version, electric cylinders are also available for cleanrooms and as IP-protected models for dusty or wet production environments.

The product portfolio at SIM Automation ranges from the effective design of individual manual workstations all the way through to completely interlinked, highly automated process lines. We handle all common transfer systems and can thus offer solutions that are independent from the branches of our customers. In addition to all standardized joining, measuring, testing and inspection systems, our assembly plants can also implement the customer’s own processes, including: - Joining, screwing, bonding, riveting, welding (laser, ultrasonic, resistance) - Testing, measuring, inspecting (optical, tactile, electrical, thermal) - Robot systems - Linear systems (pneumatic, electrical, mechanical) - Cam-controlled drives, linear and handling systems Testing and inspection lines we have been involved in: - Electric high-performance gear components (up to 6 kV) - Electric central locking systems (vehicles)