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PRODUCTS MOTION CONTROL/LINEAR MOTION


LINEAR ACTUATOR RANgE NOw hAS A ROTARy ENCODER AS STANDARD OPTION


New from Thomson Industries is a rotating-nut stepper motor linear actuator (SMLA) with a rotary encoder as a standard option. Machine designers with applications requiring positional feedback can now specify the full line of SMLAs integrated with this enhancement, the company explains. The SMLAs use a stepper motor and lead screw shaft to translate rotary


motion to linear motion for all three configurations: linear actuator, rotating screw and rotating nut. Previously, designers requiring positional monitoring on either the actuator or rotating screw configurations had to request a custom encoder assembly. As machine designers are developing more complex applications requiring monitoring for speed, distance and position, the integration


of encoders has been the most requested SMLA


customisation for Thomson. This strong demand led the company to offer encoders as a


standard option for all three SMLA configurations. Ojesh Singh, product manager Lead Screws, Thomson Industries,


commented: “Standardising encoder availability is a great leap forward in what machine designers can do with an SMLA platform. They have more flexibility in designing applications that require advanced data gathering and analysis and, given the SMLAs’ immediate availability, can get the units into production faster.”


Thomson Industries www.thomsonlinear.com/mls


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lInear sTage acTuaTors offer 2,200mm sTroke lengTh


Extending the capability of its twin profile rail linear stage actuator, Tolomatic’s new TRS 225 doubles the maximum stroke length – now up to 2,200mm – and boosts maximum load up to 1,960kg. According to the company,


its Twin Rail Stage system gives machine build OEMs a two or three axis linear motion system with a configurable stroke length to meet application needs. The TRS can then be driven with the OEMs choice of motor. The TRS225 pushes total force up to 14,880N and raises the speed


to 1,270mm/sec. This wide capability is intended for machine builders requiring linear motion for applications such as machine centres, gantries, and heavy-duty material handling applications. It also enhances robotics integration and can extend the reach of cobots by providing an additional axis. TRS actuators ensure high accuracy along the length of travel, with a


choice of either a roller screw, offering ±0.0102mm/300mm, or a ball screw, providing ±0.100mm/300mm. The linear stages are also highly rigid, thanks to twin rails per actuator and an enclosed design with an extruded body and machined base. This minimises deflection, making the TRS a highly stable platform for cutting and drilling applications. Tolomatic’s linear actuators are designed with Endurance Technology


features for maximum durability and extended service life. The linear system is supported in the UK by INMOCO.


Inmoco https://inmoco.co.uk/


sustainable and cost effective linear guides


igus has expanded its portfolio of linear guides with a new, low cost, entry-level series called drylin Econ. Injection-moulded from regranulated, high- performance plastic, these offer a sustainable and cost effective solution for simple adjustment and positioning tasks. “Thanks to this less time-consuming series production in a single tool,


the cost of a linear slide in size 0630 is more than 50% lower,” said Rob Dumayne, drylin and bearings director at igus UK. The operation of drylin Econ is also economical. Microscopic solid lubricants are integrated into the high- performance plastic bearing over which the carriage moves on the rail. Unlike classic rolling bearings, for example, they allow dry running without additional lubrication, saving users maintenance time and material costs while retaining its sustainable integrity. Of additional benefit, the system is also exceptionally light. igus


manufactures the anodised aluminium linear rails not only in a straight line, but also following a curved design. This enables travel in a quarter, half or full circle as well as convex and concave curve guides. The polymer bearings of the cam carriages adapt to the rail’s geometry by means of spherical adjustment.


igus 4 DesIgn soluTIons FEBRUARy 2024 4 www.igus.co.uk


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