The standard horizontal milling and boring machines series BFR (RAM-design) and BFR (Slide design) have been designed especially for high precision machining of large sized work pieces.

Machines are provided with four NC-axes which enable machining of any given path contour including circular milling.

The rigid design of the machine enables to machine economically and precise even in extreme positions, which the spindle or RAM moved far out in the upper position.

To achieve the outstanding high machine rigidity and at the same time a high accuracy a special flow-controlled hydrostatic is used in the machine. This hydrostatic system works with a minimum gap widths and very low amount of oil. It has a positive effect on the static and dynamic performance of the machine. The system is almost free of wear over the machine live cycle and guarantees a constant accuracy over the complete guiding length.

Simplified and almost maintenance free gear units guarantee a high availability of the machines and reduced maintenance.

Technical data *:

* - other machine sizes are available upon request

Essential advantages of hydrostatic with PM-flow controller

The special design of hydrostatic with PM-flow controller provides high rigidity and stiffness of the guide ways. This design principle enables minimized gap height adjustments and uses proportional flow controllers to do this. As a side effect the amount of oil needed is reduced. Also the necessary amount of energy and thus machining costs are minimized.

 four to five time higher stiffness than with conventional hydrostatic systems
 adjustment of stiffness through pre-stressing
 each hydrostatic pocket will be controlled by a separate proportional flow controller
 gap width is constant within a tolerance range and independent from the machining load
 significantly reduced oil consumption
 pumps and motors can be selected more economically
 no influence from changing oil viscosity due to changing temperatures

Design of accessories according to customer requirements

 boring spindle with automatic, hydro-mechanical tool retract and internal coolant flow through spindle
 milling heads are provided based on machining requirements
 automatic milling head changer with pick-up station
 control unit make SIEMENS or HEIDENHAIN
 automatic tool changer
 chip conveyor
 coolant filtration unit
 operator platform