HMCs Machining centres receive upgrades to boost productivity

Editor: Eric Culp

Supplier touts advantages of chip evacuation.

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A range of sizes makes the line suitable for a wide variety of applications in mould and die making, the supplier said.
A range of sizes makes the line suitable for a wide variety of applications in mould and die making, the supplier said.
(Source: Handtmann)

Handtmann has further developed its HBZ Trunnion 5-axis horizontal machining centres, which are said to offer improved productivity, especially when it comes to machining workpieces that required deep pockets and drilled holes.

On a horizontal machine the chips fall out of the cavity and so there is no chip build-up to cause problems with quality or reduce cycle time, Handtmann explained. The company said customer reports indicate that machining on the HBZ Trunnion 80 can be up to 30% more productive than machining with competing units currently in the market.

The X, Y and Z-axis travel is independent from the workpiece and the rotary and swivel C and A-axes, and combined in an NC rotary swivel table, together with a single piece machine bed and three point floor mounting, give rigidity and process reliability, the supplier pointed out. The spindle is horizontally arranged and is said to allow economic machining of titanium, steel, aluminium and composites. With its wide range of sizes – including 800 mm, 1,200 mm and 1,600 mm table sizes – and various spindle options, the HBZ Trunnion is a suitable for a wide range of applications in mould and die making, general metal machining, machine construction, energy and power generation, automotive and aerospace, Handtmann said.

Furthermore, the centre comes equipped with a pallet changing system, and by installing an additional pallet rack, the automation can be extended to accommodate any number of pallets. The machine is also equipped with an additional turning option, which expands the machining centre into a 5-axis milling and turning unit, the company explained. Components that need both milling and turning can be machined economically.

The HBZ Trunnion 120 offers axis travels of 1,270 mm in X, 1,100 mm in Y and 900 mm in Z direction, with travel speeds of up to 60 m/min. The spindles on offer are said to range from 31 Nm to 1,010 Nm, with speeds from 6,000 to 30,000 min-1 and powers from 31 kW to 125 kW.