FRP

Gantry Machining Center FRP

FRP – portal CNC machine by TOS Kuřim

The gantry machining center FRP is designed for standard and high-speed machining of large and highly complex workpieces. The machine combines high performance, accuracy and flexibility for multi-axis machining applications.

As a result, it is suitable for demanding operations requiring both precision and high material removal rates.

Design and technical concept

The FRP gantry machining center features a fixed portal and a movable table. This configuration ensures efficient use of the working area while maintaining high structural rigidity.

The machine consists of the following main components:

• bed and working table
• columns
• crossrail
• cross slide
• headstock

The design is based on an optimized structural concept focusing on:

• high rigidity and stability
• minimal deformation under load
• long-term geometric accuracy

Bed and table

The working table is made of a ribbed cast iron structure with a machined surface equipped with T-slots for secure workpiece clamping.

Table characteristics:

• supported by rolling elements
• enables smooth movement along the X-axis
• designed for large and heavy workpieces

The bed consists of rigidly connected castings with precision guideways. These guideways are protected by telescopic metal covers.

Columns and portal structure

The columns are robust ribbed castings firmly fixed to the machine base. At the top, they are connected by the crossrail, forming a rigid portal structure.

This design ensures:

• high structural stiffness
• stable machining conditions
• precise tool guidance

Crossrail and cross slide

The crossrail is a cast iron component firmly connected to the columns. It carries the guideways for the cross slide movement.

The cross slide:

• uses preloaded linear roller guide elements
• enables precise movement in the Y-axis
• provides stable support for the headstock

The guideway system is designed to combine high load capacity with precision.

Spindle head and machining performance

The machine is equipped with a versatile spindle head designed for a wide range of machining operations.

Key features:

• high torque for heavy-duty roughing
• spindle speeds up to 4,000 (6,000) rpm
• automatic exchange of spindle heads
• axial tool cooling

This configuration allows both roughing and finishing operations with high efficiency.

Guideways and drives

The FRP gantry machining center can be equipped with:

• linear roller guideways
• hydrostatic guideways

This allows the machine to be configured according to requirements for precision, load capacity and dynamic performance.

Rapid traverse speeds reach up to 30 m/min, reducing non-productive time.

Extended machining capabilities

In addition to milling, the FRP can also perform turning operations using an optional vertical turning table (VTL).

This significantly expands machining possibilities, including:

• turbine casings
• large rotational parts
• combined machining operations

Industrial applications

The FRP gantry machining center is widely used in demanding industries such as:

• aerospace (aircraft engines)
• railway industry (locomotive diesel engines)
• energy sector (steam turbine casings)
• heavy engineering

Installation and operation

The machine is intended for installation in industrial facilities with sufficient floor load capacity. Proper foundation and precise leveling are essential.

Delivery includes:

• transport and installation
• commissioning
• operator training
• technical documentation

Service and support

The machine is supplied as new equipment with full service support, including:

• warranty and post-warranty service
• spare parts supply
• technical consultancy
• long-term service support