SX-820 fully automatic transfer line for "Bonell” type innerspring unit is latest model for produce "Bonell” type innerspring units directly from wire. Firstly the steel wire is coiled to a spring, and then transferred and inserted to the assembler by the automatic feeding system. After this ,the upper and lower springs are coiled together at the same time and helical wire is coiled , cut and clamped at both ends automatically. When a unit is finished, it could be ejected automatically. Technical Data Spring Type Bonell Capacity 80 Sheets/8 Hours (1800MM*2000MM) Max Width 2M Spring End Ring Φ65-Φ90MM Steel Wire Gauge Φ1.9-Φ2.4MM Spring Height 100-180MM Convolutions 4-7 Turns Total Power 10 KVA Weight Net Approx:5355KG Power Requirement 380V,3 Phase,50-60HZ (Option:415V-480V,220V)