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Small, lightweight and lubricant-free system for positioning small loadsLinear drive expert igus UK introduces the drylin SLN-27 miniature linear axis with polymer bearings and an optional NEMA 11 certified motor. Developed specifically for simple handling tasks in confined spaces, this high-performance miniature linear drive offers design flexibility for positioning small loads.
The drylin SLN-27 miniature linear axis is based on the proven technology of drylin N27 linear guide system and the linear rail is made of durable anodised aluminium. The plastic module has high wear resistance, is maintenance-free, self-lubricating and corrosion-resistant, providing a 'fit and forget' solution. With compact dimensions of only 22mm high by 28mm wide, it is suitable for low load sensor adjustments and feed mechanisms, as well as lightweight handling tasks such as those found in laboratory equipment.
As almost all of the components used in the drylin SLN-27 linear unit are made of either plastic or aluminium, the system is extremely robust and lightweight. The carriage is driven by a 5mm trapezoidal or high-helix thread leadscrew and is available in a range of pitches from 0.8mm to 5mm. The leadscrew nuts are made of iglidur high-performance polymers optimised for lubricant-free operation over the entire stroke length, which can be a maximum of 250mm.
"Weighing in at 69g, the SLN-27 is one of the feather-weights of the driven linear guide industry," says Matthew Aldridge, director at igus UK. "Even with the maximum stroke length of 250 mm, this miniature actuator weighs just 160g."
The compact SLN-27 can be bought as a complete system with a NEMA 11 stepper motor fitted, still achieving 28 x 28mm compact dimensions, and is made using stock components, individually configured to the required length. Alternatively, for customers that already have a stepper motor made by another manufacturer, igus offers a 'quick-fit' aluminium spacer and motor flange connection to fit the NEMA 11 motor.
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