PRISMATIC MACHINING

Marwin keeps Boeing up to speed

Boeing Helicopters in Philadelphia claims to be revolutionising production with a high-speed £2.75m cell for machining lightweight aluminium parts up to 4m long. The cell, supplied by Marwin Production Machines of Wolverhampton, is based on the Automax 1V twin-spindle, five-axis machining centre the largest of its kind built by Marwin. Capable of continuous unmanned use, it has three stations for 4,000 x 2,200mm pallets one for machining, one for waiting with a fixtured workpiece and one for unloading and loading. A chip management system compacts the aluminium chips into briquettes within the machine.

MARWIN PRODUCTION SYSTEMS

With a grant from the Accelerate programme, which promotes best practice in small companies, automotive industry patternmaker NPL Technologies of Nuneaton has installed a Bridgeport high-speed vertical machining centre. The machine has a 1,020 x 510 x 500mm working envelope and is fitted with a 22-tool capacity automatic tool changer, enabling complex parts to be machined in a single setup.

NPL TECHNOLOGIES

The Kondia B1050 vertical machining centre, which allows greater productivity for components up to 450kg within a 1,000 x 500 x 610mm envelope, now has a 22-station tool magazine with random bi-directional selection during automatic tool change. Also new is the 20-station, double-arm ATC, giving a 1.4 second- tool change time. It is available with an 11kw or 7.5kw motor.

GEO KINGSBURY

Okuma’s VH-40 vertical- spindle machining centre cuts complex parts in a single setup. It has an optional fifth axis, a 560 x 450 x 450mm working envelope and a 7.5kW 12,000rpm spindle, giving +/-5mm repeatable to +/-2mm. Linear rapids are 30m /min and cutting feeds up to 10m/min.