Electric Linear Actuators
Now Available in 60, 75 and 90 mm Frame Sizes!
The K Series actuators from Exlar provide a truly universal solution for rod style actuator applications. Now available in 60, 75 and 90 mm frame sizes, this series offers the option of two grades of planetary roller screws along with an option for an ACME screw. These multiple grades of screw type allow you to select the configuration best suited to your application and budget.
The K Series provides an ideal replacement for pneumatic cylinders, with dimensions and form factor consistent with ISO Metric pneumatic cylinder specifications.
The availability of high performance planetary roller screw drive allows the K Series to also replace hydraulic cylinders and provide a solution that offers superior life and performance to ball screw actuators.
Multiple Models to Fit your Needs
Three product performance levels are available so you can choose which option best suits your application and budgetary requirements.
KX Series provides a high performance planetary roller screw for performance far superior to competing actuator technologies. The KX is an ideal choice for demanding applications in industrial automation, mobile equipment, process control and others.
KM Series actuators employ a lower cost planetary roller screw design suited for applications that do not require the long life offered in the KX Series. This option still provides twice the life of similarly sized ball screw actuators along with the efficiency and resistance to shock associated with roller screws.
KA Series actuators are constructed with an ACME screw for low duty cycle applications with 2.54 mm and 5.08 mm leads. The KA Series can provide non-back driving solutions with a 2.54 mm lead. The KA Series is an excellent choice for applications that position and hold a load, or need effective low duty cycle electro-mechanical motion.
K Series Features
- Proven Exlar roller screw technology
- Flexible mounting options
- Adapts to various types of motors
- Optional gear drives for high force output from lower motor torques
Universal Mounting Options
The K Series offers a wide variety of fixed and adjustable mounting accessories, consistent with NFPA inch and ISO Metric pneumatic cylinder standards. Mounting options include:
- Front flange
- Rear flange
- Rear clevis
- Rear eye
- Adjustable side trunnion
- End angles
- Foot mount
Standard Actuator Construction
The standard K Series actuator design provides an anodized aluminum housing offering a high level of corrosion resistance in many environments. The standard main rod is plated steel with a stainless steel rod end insert, providing excellent wear characteristics.
Special Materials and Coatings
Exlar offers a variety of special materials and coating options for applications which require a higher level of corrosion-resistance. The aluminum actuator body components can be manufactured with alternative coatings such as Type III hard coat anodizing, electroless nickel plating or epoxy coating. The actuator's main rod can be provided in stainless steel construction.
Sealed Body Design
The standard body design of the K Series provides an IP54S sealed housing. IP65S sealing is available when allowable by the design of motor to be used. This allows the actuators to be used in applications where water spray is present.
Motor Mounting Options
The K Series allows for complete flexibility in the type and style of motor to drive the actuator. Types of motors compatible with K Series actuators include DC motor, stepper and servo motors. The K Series can be ordered as a base unit without motor mounting allowing customers to manufacture their own mount.
For convenience these actuators are available with preconfigured motor mounts. Exlar maintains a large library of motor mounting dimensional information for most manufacturers’ servos and stepper motors.
The inline mount places the motor on the input end of the actuator and allows the most compact form factor. In addition, Exlar offers a clevis mount attached to the rear of the inline-mounted motor for rear mounting.
The parallel motor mounts (side mount) utilize a belt drive system to transmit the motor torque to the actuator input shaft. Belt reductions of 1:1 and 2:1 are offered allowing you to conveniently match the speed and output force to properly apply your K Series actuator to your specific application.