TMW – Takahashi Microstar L3II-W-NCL

The ultra-high precision lathe Takahashi model Microstar L3II-W-NCL is designed for the production of high precision components in the automotive valves and injectors sector and is built entirely in Japan.

The machine is equipped with two electrospindles with a liquid cooling system to avoid errors due to thermal expansion. The temperature of the electrospindles is constantly controlled and maintained within a range of 5 degrees to minimize dimensional variations during turning operations.

Controlled C-axis is optional, it is possible to install pneumatic or electric electrospindles on the boring bar holders to interface with the CNC.

To ensure high productivity, a single or double CNC workpiece loading and unloading manipulator with three controlled axes and a workpiece exchange accessory is available to process the workpiece in two stages.

The bases of the spindle lines and axis slides are independent so that no vibrations are transmitted.

The X- and Z-axis slides are mounted on a dovetail structure for maximum rigidity, superior accuracy and longer tool life. The slides and ball screws are automatically lubricated by the automatic lubrication unit supplied as standard.

The ball screws are of high quality and are preloaded to minimize temperature variations due to the movement of the balls inside the nut. The precision of the X,Z axes are 0,001 mm, the repeatability is +/- 0.001mm and the spindle nose runout is 0.002mm. To obtain greater precision when turning with two axes at the same time, this machine model has the Z axis with spindle movement (the head moves).

The basic machine is prearranged for pneumatic self-centering, while the prearrangement for hydraulic self-centering is optional according to the needs of workpiece grip.

As option the X, Z axes can be provided with optical scales with 0.05 micron resolution.

The TMW – Takahashi Microstar L3II-W-NCL is a gang-type CNC lathe with two parallel spindles, fitted with a gantry loader for automatic cycles. The twin-spindle configuration lets you double output or handle front/back machining, while keeping the compactness and speed typical of the Microstar range. With a turning diameter up to 40 mm, travels of 200 mm in X and 235 mm in Z and a built-in spindle up to 6,000 rpm rated 5.5/2.2 kW, it is a robust solution for series turning of small parts. Rapid feeds of 18 m/min on both axes keep cycle times short.