THK Co., Ltd. HSR30-280L Linear Guide Rail System

The THK HSR30-280L Linear Guide Rail System is a precision 30 mm profile rail designed to pair with THK HSR30 series guide blocks, delivering high rigidity and smooth travel for CNC machines and automation equipment. Measuring 280 mm in length, the rail is 28 mm wide, 26 mm tall, with an 80 mm mounting hole pitch, four M8 mounting holes, and an end distance (G) of 20 mm, all in hardened carbon steel at 58–64 HRC. It features precision-ground raceways, four-way equal load capability, low-friction operation, corrosion-resistant finish, and an interchangeable Global Standard design for long service life, and is compatible with THK HSR30 Series blocks. Common applications include CNC machining centers, automated assembly systems, robotic positioning equipment, semiconductor manufacturing machines, packaging machinery, inspection systems, and precision material handling equipment. This compact 280 mm length is well-suited for short-stroke linear motion and is a common choice for maintenance teams, OEM machine builders, and system integrators performing repair, retrofit, expansion, or replacement.