Machining Center Series Designed for Single-Clamping, MQL Operations

Licon’s LiFlex series of horizontal, twin-spindle and five-axis machining centers offer a variety of configuration possibilities.

Licon’s LiFlex series of horizontal, twin-spindle and five-axis machining centers offer a variety of configuration possibilities. The machines offer three loading options: direct load, double trunnion or pallet changer. The series includes machines with a range of working envelope sizes, accommodating different application requirements. The LiFlex II 444 has a 450- or 400-mm spindle distance; the LiFlex II 76 has a 750-mm spindle distance; and the LiFlex II 1066 has a 1,050-mm spindle distance. The machines’ high dynamic stiffness achieves high-force machining performance. Heavy-duty applications are made easier with twin spindles.

The LiFlex series is designed for minimum-quantity lubrication (MQL) machining, reducing costs and optimizing chip removal. The LiFlex concept’s five-axis positioning enables machining such parts as suspension knuckles—usually made in two clampings—in only one clamping, reducing reclamping errors. The working envelope is optimized for this, delivering the extra height needed for upright machining. Licon motor spindles range from dynamic to heavy-duty applications, providing torque ranging to 500 Nm. To avoid tool-change times for complex workpieces, the modular LiFlex systems offers tool magazines with capacities ranging to 240.

The use of a pallet changer makes part change-over easy to manage. Workpiece change-over can be done in as little as 20 minutes, the company says. The integrated zero-point clamping system benefits changing pallets with clamping fixtures.

The optional i3 technology enables the twin-spindle setup to act like two independent milling machines. Rotational errors are accommodated by individual offsets for each spindle. The gain in productivity and space are big advantages, the company says. While this technology is optional, each LiFlex machine comes standard with independent Z axes.

For machine monitoring and preventive maintenance, the series includes the company’s LAVA (Licon Added Value Analysis), applying a sophisticated sensor system in conjunction with analysis software for machine diagnostics.

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