Akari HS-630i delivers metre cube capacity high precision machining to a budget

The 4-axis, twin-pallet Akari HS-630i incorporates THK roller guideways, Tsubaki ballscrews, a Tsudakoma full 4th axis rotary table, and 30 bar coolant delivery through a BT 50 BIG-Plus face-and-taper-contact spindle. A Fanuc 31iMB Nano CNC offers artificial intelligence contour control with 200-block look-ahead and jerk control for accurate and productive high speed profiling. The 18-tonne machine, built around a single-piece casting for rigidity, is combined with a 47.5 kW/10,000 rpm spindle motor delivering 600 Nm of torque. Al 55 kW/6,000 rpm spindle with 1,309 Nm of torque is optionally offered. Thermal control of the ballscrews and nuts, thrust bearings, Y-axis servo mounting and spindle cartridge by means of recirculating chilled oil also support high precision metal cutting. Rapid traverses of 50 m/min in each of the 1,050 by 900 by 1,020 mm linear axes, up to 1.4 g acceleration/deceleration and 2 sec exchange of BT 50 tools from the 60-station magazine (120 or 220 options) minimise non-cutting time. The flexible manufacturing centre also allows prolonged periods of unmanned machining of large batches, small-lot multiple-part runs, or cost effective production in ones and twos. Field expandability by retrofitting a 6-station automatic changer for 630 mm square pallets allows purchasers to expand their investment in line with growing business requirements. The Akari HS-630i horizontal machining centre joins a smaller HS-450i model launched during the first half of 2012.