Description Overview Mattress overlock machine Heavy duty mattress flanging machine Mainly used for mattress material and extra thickness fabric Features Includes 2 straight needles on the head Automatic oil-offerings for full lubrication of each part, easy to unpick and wash Includes cooling equipment with automatic lubricating system to avoid cutting needle and cutting thread Includes double needles with 5 threads, matching well with feeding Nice stitch and good efficiency Includes high-technology motor for high-speed operation Includes automatic presser foot with stream operate, and automatic operate by control Runs stable and low noise Specifications Max. sewing speed: 4000 r.p.m Over-lock width: 30 mm Over-lock thickness: 70 mm Stitch pitch: 2 to 6 mm Needle: DOX5 22# Needle gauge: 0 to 6 mm Air pressure: 0.5 to 0.8 MPa Lubrication: C10 oil for the frame (or use another brand oil in the same level) Differential rate: crinkle 1:2 (max. 1:4), extend 1:0.7 (max. 1:0.6) Binder device: yes Motor: 600 W, 220 V, 50/60 Hz