5.0 Robotics QTC HSK40 2.2kW spindle (Copy)

Summary of the Manual Tool Change (MTC) Spindle System

The Manual Tool Change (MTC) spindle is a cost-effective and robust spindle option for the Model 8 and Model 16 Executive CNC machines, offering exceptional power transfer and durability while maintaining a simple and reliable design.

Key Features of the MTC System:

1. High-Performance Spindle:

   • The 2.2 kW MTC spindle from Tekno is optimized for the Executive CNC platform.

   • Unlike the HSK 40 QTC, which uses tool holders for quick swaps, the MTC spindle requires manual tool changes using spanners.

2. Exceptional Power Transfer:

   • Since the collet cone sits directly within the spindle bearing, the power transfer from the spindle to the tool is maximized.

   • The simple double-angle contact bearing assembly enhances efficiency and ensures long service life.

3. Extreme Durability:

   • The spindle system is built for longevity, typically requiring over 3–5 years of use before bearing maintenance is needed.

   • The mechanically simple design makes it highly reliable.

4. Manual Tool Change Process:

   • The operator loosens the collet nut with spanners, removes the tool, inserts a new tool, and re-tightens the collet.

   • Because the tool reference is lost with every change, the Z-axis must be re-zeroed.

Semi-Automation via Fixed Offset Sensor

To improve efficiency, 5.0 Robotics has integrated a semi-automated tool offset setting system:

1. Fixed Automatic Offset Sensor:

   • A touch-off sensor is fixed to the table to automatically capture the Z-offset for each tool change.

   • The operator inserts a new tool, presses the Tool Set button, and the Z-axis moves down to touch the sensor.

   • The system records the tool length automatically.

2. Workpiece Reference and Automation:

   • The operator sets the Z zero on the workpiece manually once.

   • The CNC machine then calculates the offset between the sensor and the workpiece datum.

   • When changing tools during a job, the system automatically applies the correct Z offset using the sensor—eliminating the need to manually re-zero the tool for each change.

3. Multi-Tool Job Execution:

   • When a tool change is required in a multi-tool G-code file, the system prompts the operator.

   • The new tool is inserted, and the offset sensor automatically updates the Z-height.

   • The system resumes machining without requiring manual Z-zeroing.

Advantages of the MTC Spindle System

✅ Cost-Effective: Lower cost than Quick Tool Change (QTC) and Automatic Tool Change (ATC) spindles.
✅ Extreme Reliability: Simple mechanical design with long-lasting bearings.
✅ High Power Transfer: Direct collet-to-spindle design enhances machining performance.
✅ Semi-Automated Z Offset Calibration: Fixed sensor automates tool height setting for efficiency.
✅ Runs on Single-Phase Power: The spindle system is optimized for single-phase VFD operation.

Limitations of the MTC Spindle

⚠ Manual Tool Changes Required: The operator must use spanners to swap tools.
⚠ Not Ideal for High-Volume Production: Slower than QTC or ATC systems.
⚠ Requires Z-Zeroing for First Setup: But this is automated for subsequent changes using the offset sensor.