CyTec M21 fork 5-Axis NC milling head

CyTurn M21 fork 5-Axis NC milling head 

CyMill YTE

Machining Head Series M21 Fork

The medium-sized milling head series M21 is designed for universal applications in general workpiece machining.

Application Areas

5-axis machining in the aircraft and automotive industries.

Standard applications in tool machining: milling, drilling, grinding, etc.

Key Features

Dynamic Direct Drives: Patented technology developed by CyTec, integrated into all axes.

High-Precision Bearings: CyTec axial-radial bearings for superior accuracy.

Control System Compatibility: Compatible with Siemens, Heidenhain, Fagor, NUM control systems.

Spindle Options: Equipped with motor spindles from a versatile product range, including:

Powerful rough machining spindles.

High-speed spindles.

Newly developed turning-milling spindles with spindle shaft clamping capabilities.

Power Range: Spindles offering between 21 and 60 kW.

Options

Automatic Head Docking: Integrated indexing with media and energy couplings.

Attachable Fixed Heads: Vertical or 90° design for powerful rough machining of large, bulky parts, as an alternative to the swiveling A-axis.

Components (Schematic Overview)

C-Axis

Supply Connections: Includes motor current, measuring systems, cooling, and hydraulics for both swivel axes and motor spindle.

Media Transfer: Rotary union system for seamless media transfer.

Position Monitoring: Absolute angular measuring system.

Torque Motors: High-power motors, similar to the A-axis design.

Clamping Bushes: Hydraulically operated with brake action.

Bearings: Radial and axial bearings for stability.

A-Axis

High-Power Torque Motors: Direct drives with integrated cooling.

Crossed Roller Bearings: Stable rotor support.

Clamping Bushes: Hydraulically operated.

Swivel Housing: Incorporates the motor spindle.

Tool Clamping System: Automatic clamping and tool cooling with CTS, EC, and MQL options.

Position Monitoring: Absolute angular measuring system for precision.

Optional Features:

Turning Tools: Spindle interlock for turning applications.

Vertical Attachment: Optional vertical head (e.g., CSV-21-400) for additional flexibility.

The safe docking and locking of the head/spindle is enabled by the hydromechanical CyTrac clamping systems with preload. The systems are integrated in the C-axis swivel housing and couple the corresponding bolts of the head A-axis during the feed process. 

The clamping jaws grip the bolts, lock them securely, and hold them under preload. 

For the transmission of liquid and gaseous media, including coolant, hydraulic, and pneumatic systems, quick coupling systems are used. These systems are leakage-free, very compact, and feature high volumetric flow rates. Thanks to the integrated offset and angle compensation, it is possible to countervail production tolerances.