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Efficient Automated Green Part Machining

Drilling and Brushing Know-how

Green and pre-sintered parts often require machining. ROBOWORKER therefore has special systems for drilling or brushing operations in its program. These systems achieve their particularly high efficiency through integrated component buffering and automatic handling.

The Alternative to Cross-Hole Pressing

For the production of special cutting insert geometries, e.g. tangential milling inserts, the purchase of a cross hole press often only pays off with high recurring quantities.

Manual green compact machining processes are generally less efficient due to the associated high labor intensity and scrap rates.

With the automated RDS drilling station, ROBOWORKER offers a powerful and cost-effective alternative to both methods, including small and medium batch sizes.

Your Advantages with ROBOWORKER Drilling Stations

Increased productivity due to fast adjustment of borehole geometries and short time-to-market

Cost savings due to reduced engineering time and low tool costs

Process stability through optimum compaction on standard presses and thus minimum borehole distortion after sintering

Possible distortion of cross hole pressed cutting insert after sintering

Possible distortion

on cross-hole pressed insert after sintering

Minimal distortion after sintering

Minimal distortion

of pressed blank without hole and efficient green machining process

Drilling Station

  • NC controlled drilling spindle from above and below in different speed ranges
  • Individually programmable drilling axis (Z)
  • Individually programmable X/Y axes, e.g. for two drilling holes
  • Product specific clamping units with hold-down devices for exact positioning of the part
  • Special suction devices for eliminating the metal powder during the drilling process and cleaning the pressed part after drilling
  • Convenient HMI for programming and parameter setting
  • Camera systems for borehole check (as an option)


  • Compact modular system, especially for horizontal loading and unloading based on proven PAG technology
  • 3-axis linear robot
  • Double conveyor belt for all types of sinter trays
  • Touch screen operation
  • Gentle and flexible gripping systems
  • Optional cleaning and inspecting of component

Repeatable and Consistent Brushing Results

With the ROBOWORKER brushing systems, the burr root, which adheres to the indexable inserts after pressing, is completely and evenly removed. Thus, cutting performance and product life time can be increased.

The brushing process can be flexibly adapted to the nature of the press burr.

BEFORE - Cutting insert with burrs at cutting edge
BEFORE - Cutting insert with burrs at cutting edge
Evenly distributed burrs: all sides equally brushed
Evenly distributed burrs: all sides equally brushed
Unevenly distributed burrs: different brushing
Unevenly distributed burrs: different brushing

Your Advantages with ROBOWORKER Brushing Stations

Increased quality due to increased cutting edge honing accuracy, improved cutting performance and longer service life of the end product

Maximum process reliability through repeatable parameterization and adaptation of the brushing process to the nature of the press burr

Maximum process repeatability through program storage

Brushing Stations RBS

Up to three trays of green compacts can be inserted into the ROBOWORKER brushing stations and automatically processed one after the other.

The brushing process takes place via a high-precision axis system with various brushes:

  • Flexible parameterization for complex geometries
  • Storage of component-relevant data

The system is equipped with a suction device, a table for manual optical inspection and a mobile touch screen for system control.

Brushing station with automatic loading/unloading and optical inspection station

Brushing Stations RBS Compact

One tray with green compacts is manually inserted into the footprint-optimized compact version of the brushing station.

It is equipped with the same hardware and software features for processing the green compacts as the larger versions.

Brushing station for manual loading/unloading
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