Engineers building linear motion systems can use ground-up DIY approaches or purchase complete turnkey solutions. Here we explain where each tactic is most profitable. By John Brokaw and Kent Martins | Valin Corp. How should designers pick between building linear-motion designs in-house or purchasing pre-engineered assemblies? What is there to consider when determining the best […]
Can a linear actuator provide the rigidity and accuracy of a linear stage?
Although there are no industry standards that define linear actuators and linear stages, generally accepted terminology indicates that a linear actuator is typically constructed with an aluminum extrusion or base, while a linear stage is typically built on a flat, machined steel or granite base. This distinction implies that linear actuators can typically provide longer […]
Tolomatic electric actuators with longer strokes (to replace fluid-power cylinders)
Tolomatic high force electric rod-style actuators now feature stroke lengths to 1.5 m (60 in.) for more flexibility for converting motion control applications with hydraulic or pneumatic cylinders to electric linear motion. Designed for high duty-cycle performance in demanding applications, the RSX, RSA and ERD electric rod-style product families use planetary roller screws for longer […]
Tolomatic integrated servo motor and drive (with PROFINET) automates simple motion axes
The Tolomatic ACSI integrated servo/motor/controller is now available with PROFINET Industrial Ethernet protocol — to let engineers design easy-to-use and cost-effective electric actuator setups for single-axis applications. The integrated package is suitable for replacing pneumatic cylinders and automating any simple axis of motion with Siemens or other PROFINET enabled PLCs. With built-in configurations for Tolomatic […]
Lead screw selection: What should I consider besides diameter and lead?
Once you’ve gone through the process of sizing a lead screw, you know what diameter and lead will provide the required load capacity, speed, and back driving torque for the application. But there are hundreds — maybe thousands — of lead screw designs on the market. Beyond the basics of diameter and lead, how do you […]
Closed-loop linear actuator operates at high torque for high acceleration applications
A new closed-loop linear actuator from Applied Motion Products offers greater acceleration rates, shorter move times and higher throughput than conventional step motor-based linear actuators. Creating peak torques up to 50% higher than holding torque, TBSM11 Linear Actuators accelerate and decelerate faster, making them ideal for high throughput processes that require linear actuators to start […]
New high load capacity BG actuator from NB
NB Corporation presents a compact, single axis actuator with a unique “U” shaped integrated slide guide and ball screw. The BG actuator’s highly rigid structure may be one-end supported, and the four ball circuits contained in its slide block deliver high load capacity, accuracy, and rigidity. To accommodate a wide range of installations and applications, these […]
35-mm CBL35C programmable electric moving-coil servo actuator from SMAC Corp.
Now a 35-mm-diameter SMAC Corp. CBL35C electric cylinder has a built-in controller. The latter lets the CBL35C control force, position, and velocity — and facilitates simple installation. The actuator works for applications with limited space but needing accurate control … Plus the CBL35C provides significantly longer life, programmability, high speed, accuracy, and energy efficiency maintaining […]
New linear motor designs improve speed and positioning
Linear motors enable maximum precision and dynamic performance in various motion control tasks. These include not only rapid traverse, but slow, constant speed traverse of machine heads, spindle slides, tool management systems, part handling devices and more. There are considerable cost savings to be realized when various mechanical components are replaced by simple and efficient […]
Lead screw sizing in 4 steps
Lead screw sizing is a bit of a hybrid exercise, with similarities to the process of ball screw sizing, but incorporating some of the considerations that come with sizing a plain bearing. While many factors are involved in the selection of a specific lead screw assembly, lead screw sizing — choosing the right diameter and […]
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