Description Overview Mainly used for spring mattresses Can also be used for upholstered sewing mattresses, sleeping bags, and tents Specifications Sewing head: chain stitch 300U Singer Corner speed control: yes Table lifting range: 140 mm Mattress thickness: 30 to 450 mm Working table size: 1600 x 2000 mm Productivity: 10 to 20 mattresses per hour Power: 1.2 kW