MicroStar
Microfinish/superfinish flat processing with Thielenhaus MicroStar
Plan processingRotating cup wheel tools are used for processing flat surfaces, which can also have a convex or concave shape. The axis of rotation of the tool is offset to the axis of rotation of the workpiece. If the tool axis is now tilted in relation to the workpiece axis, convex or concave surfaces are generated by superimposing the rotary movement of the workpiece and the tool, which are reliably produced with 0.1 µm precision thanks to our adaptive MicroSens force control technology.
The finish pattern can be influenced by the transverse inclination of the tool axis to the workpiece axis, so that ray sanding (R), cross sanding (X, R), but also concentric trace positions (C) can be produced. The units can be tilted manually, with EasyTilt support or fully automatically. Ceramic-bonded cup wheels made of aluminum oxide, silicon carbide, CBN or diamond are generally used as tools, which usually work in self-dressing mode, i.e. without cyclical dressing. Face machining is generally used for the machining of sealing surfaces, for components from injection technology, hydraulics and pneumatics, the fittings industry as well as thrust surfaces for drive technology components.
Depending on the required quantity and task, we offer you solutions from our MicroStar machine platform with one workpiece spindle (MicroStar 300) through to rotary transfer solutions with 3, 4, 6, 8, 9 or 12 workpiece spindles. This means that multi-stage machining, multiple loads and additional machining operations such as brush deburring, internal grinding and honing can be carried out in a very confined space in a single clamping operation.
The centrally positioned column, to which any number of processing units can be attached, guarantees optimum accessibility with minimum space requirements. Thanks to the modular design and the associated high reusability of this machine platform, you are also securely positioned for the future with a machine from the MicroStar series.
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The MicroStar series
Solution for processing flat surfaces
200 series
With unrivaled workpiece qualities, the MicroStar 200 is the most successful superfinishing machine on the market. Depending on requirements, it can be upgraded to a precision machining center. Fully equipped with eight stations, workpieces can be pre-finished and finish-finished on both sides and brush-deburred in a single pass, for example. Double loading is also possible. Thanks to the rotary indexing principle, all operations run simultaneously so that finished parts can be unloaded and raw parts loaded after each cycle.
- Rotary transfer machine with 3, 4, 6 or 8 workpiece spindles and up to 7 processing units
- Can be combined with additional operations, e.g. brush deburring, internal grinding, honing, measuring, turning, etc.
- Modular design and high reusability
- Low space requirement
- Simple operation and optimum accessibility
- Workpiece height:
max. 230 mm - Workpiece diameter:
max. 200 mm - Or in special design
300 series
The machines in this series are designed for both small and large workpieces with complex contours and for small or medium batch sizes. In contrast to the rotary transfer machines, a linear processing concept with a sequential process sequence is implemented here. The workpiece spindle moves horizontally to the machining units mounted above it.
This means that up to 4 process combinations can be run flexibly. With the optional swivel workpiece spindle, spherical surfaces can also be machined on the same machine in addition to flat surfaces. This gives you maximum flexibility in precision machining.
Here too, modules from the rotary actuator series have been consistently continued, so that processes developed for this model can also be transferred.
- Flexibly customizable with manual and automatic use
- Multi-stage machining for a wide range of tools
- Advanced functions with precise control
- Sequential process sequence with combination of additional operations, e.g. brush deburring, measuring, turning, reaming, internal grinding, honing, etc.
- Expandable to ball machining
- Heavy workpieces can be loaded from above using a crane
- Workpiece weight:
max. 80 kg - Workpiece diameter:
max. 550 mm - Workpiece height:
max. 470 mm
EVO 1200
The MicroStar EVO(lution) 1200 sets new standards in precision machining. It continues the successful rotary table concept of the 200 MicroStar series, but has up to twelve stations.
This guarantees sufficient flexibility for process combinations and the greatest possible output. Depending on the task, up to four workpieces can be loaded and unloaded simultaneously after each cycle of the machine.
During development, the successful concept of the MicroStar 200 was consistently continued. Processes are easily transferable.
- Parallel processing saves machines and units
- Increased productivity through multiple loading at four stations
- High flexibility and quality, error prevention in the process
- Workpiece height:
max. 230 mm - Workpiece diameter:
max. 200 mm
Application examples
MicroStar product brochure
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Process combinations increase quality
Sequencing of process stepsIt is becoming increasingly important that the components to be machined achieve maximum accuracy with short cycle times. Repeated clamping of workpieces on one or more machines connected in series is increasingly unsuitable due to the associated clamping errors. By stringing together process steps in one machine and in one clamping, considerably higher qualities can be achieved in face machining.
Our Microfinish-/
Superfinish
Machines
Engineering according to customer requirementsNot possible for us. No matter which workpieces you want to optimize with our Microfinish/Superfinish technology, we have the right machine. Benefit from the expertise we have gained over decades of implementing ever new customer requirements. Because every new application, every new workpiece increases our expertise. In this way, we are constantly developing and optimizing our technology in close cooperation with our customers.
