LGP 2000 boosts productivity and process reliability
As part of the latest machine platform for large gears, the LGP 2000 enables profile grinding across a broad range of applications – from single components to series production.
An additional grinding spindle and a double dresser for simultaneous dressing can almost halve machining times.
Requirements for the finishing of large hardened gears vary depending on the application. In wind power, the focus is on high volumes and cost efficiency, for example when producing planetary gears. In turbine gear units, marine drives and high-end industrial gear units with small batch sizes, process reliability is critical – the goal is a good part right from the first workpiece. Job shops require a high level of flexibility: a wide variety of components, internal and external gears, and complex geometries all need to be machined economically on a single system.
Profile grinding of large workpieces
The LGP 2000 profile grinding machine is designed to meet these requirements. Like the other machines in the platform for workpieces up to two meters in diameter, it is based on a thermosymmetrical, optimally temperature-controlled bed and features a hydrostatically supported table with a wear-free direct drive. A stroke of up to two meters allows long shafts with multiple gears to be machined. Components up to 800 mm in diameter can be loaded automatically via a ringloader; additional automation solutions can be integrated depending on the component and application.
Flexible spindle configurations
The high-performance PGH 450 FX grinding head allows a targeted combination of two grinding discs with different specifications in the dual-spindle configuration – from roughing and finishing through to fine grinding and polishing. This reduces machining times, increases process stability and lowers the risk of grinding burn. The result is excellent surface quality and high productivity, reducing cycle times by up to 35 percent.
The single-spindle configuration is particularly suitable for frequently changing components. An optional high-speed spindle is available for collision-critical parts, allowing the use of smaller grinding discs, including CBN discs where required. Internal gears can also be machined using optional internal grinding arms for the PGH 450 FX grinding head. Both options can be retrofitted if needed. Additionally, a swiveling probe enables in-machine gear inspection. The LHGearTec control system supports simple and reliable operation with its intuitive interface.
Multiple grinding processes in one system
The machine supports a range of processes. In high-speed grinding, high axial feed rates are combined with shallow infeed. In creep feed grinding, material is removed using deep infeed and low axial feed rates. In addition, single- or double-flank topological grinding enables targeted lead modifications.
Simultaneous dressing halves non-productive time
An optional dual dresser allows both faces of the profile grinding disc to be dressed simultaneously, reducing dressing times by almost 50 percent compared with conventional methods. Especially in applications where frequent dressing is required, non-productive time is significantly reduced while tool availability increases. This enables the LGP 2000 to deliver stable processes, consistent surface quality and cost-effective production – both in series manufacturing and in small batches of different components.
