This is a new rodless cylinder.
Double-acting mechanically-jointed rodless linear guide type pneumatic actuator with built-in magnet + single-axis linear guide + air cushion / shock absorber + centralized piping + low-load shock absorber - SMC (MY2 series) - Stroke adjusting unit with adjusting bolt - 40mm (B40mm) bore - 500mm (S500mm) stroke length - body with rod-end male thread - G1/4" pneumatic threaded ports x 2 - Pre-wired with 50cm oil-proof heavy-duty lead-wire terminated with a 4-pin M12 connector (A-coded) - with 2 x pre-assembled solid-state auto sw. (3-wire PNP 2-color status indicator direct-mounting with connector Normally Open (NO) switch(es) in-line entry wiring) - 100-1500mm/s piston speed - Stainless steel top cover and parallel pin material