Description Overview Queen size Specifications Maximum mattress height: 18 in Voltage: 208-240 vac Frequency: 50/60 hz Phase: 1 Full load: 11a Power: 2500 w Largest motor: 1 hp Sscr: 5 ka Factory preset speed: 2700 rpm Needle system: sn62 x 5924 Needle size: 24/180 Maximum stitch length: 4 spi Shipping weight: 2100 lbs Weight: 952.5