Model: r-6-300 Input voltage: 380v(3-phase) or customized Power freq.: 50/60hz Rated power: 18kva Cooling: natural cooling Air flow: 250l/min Air pressure: 0.6-0.8mpa Wire thickness: 2.8mm-6mm Max ring diameter: 300mm Min ring diameter: a. 88mm (wire thickness less than 4mm) b. 90mm (wire thickness between 4 mm and 5mm) c. 105mm (wire thickness between 5mm and 6mm) Throughput: about 1200pcs/hour(for ring diameter 150mm) Ring diameter tolerance: less than 0.16mm Weight: 1200kg Features: 2nd generation ring making and welding machine r-6-300 Two years ago, the release of ring making and welding integrated machine had been the first of its kind in china; now, the 2nd generation machine is even more powerful: 1. High precision: intelligent "s" shape speed curve, the encoder and the servo motor form a closed-loop wire feeding control system, secure a diameter tolerance less than 0.16mm, eventually solve the ring precision issues inherent in Standard packing