Telephone - 01926 438363

Maintenance Course for CNC twin-spindle & 4 axis Lathes with Siemens Controls

Course duration is 2 days

This course is run at the Mills Mills CNC Training Academy, Leamington Spa (depending on availability) or on-site.

To ensure a positive learning experience course size is limited to 4 attendees.

Cost of course is £600.00 + VAT per attendee (at Leamington only).

This Course is designed to follow on from the single-spindle 2 axis Siemens maintenance course.

Call the Academy for availability or complete the form below

Course information

This is a practical course aimed at companies, including Mills CNC customers, who have Siemens-controlled Doosan twin-spindle lathes or similar Siemens-controlled machines manufactured by other machine tool builders.

The course will appeal to companies who have an in-house Machine Tool Maintenance or Service Department and need to increase the skill levels of their employees, thus enabling them to plan and undertake systematic trouble-shooting and preventative mechanical maintenance on Siemens-controlled lathes.

To get the most from this course it is important that attendees have experience of a machine tool's mechanical operation and the CNC control's  systems and functions.

Specific course content includes:

  • Explanation of the Siemens Control system
  • Introduction to the Lathe and its 4 axis twin spindle layout and configuration
  • Turret Build Up, Workings and alignment both Radially and Perpendicular to Both Spindles
  • Ball-screw accuracy, checking backlash and rectifying issues
  • Undertaking axis realignment to take in the Both Spindles, allowing faultless Passovers
  • Calibrating Tool Probes and setting (if applicable)
  • Understanding Sub-Spindle assembly including Chuck & Brake operation and mechanisms
  • Hydraulic and pneumatic mechanisms
  • Passover Testing, Spindle Acceleration & Deceleration Synchronised. Chuck Phase in alignment
  • Operation, fault-finding and preventative maintenance

This course can occasionally be run at the Mills Mills CNC Training Academy's facility in Leamington (depending on a availability) or can be held at a customer's facility. (Charges will be different to above.)

This course is practical with some theoretical and classroom instruction. Training on a Siemens-controlled lathe depends on availability, but the same principles may apply to other makes of controls.

If training is required at a customer's facility, it is important that attendees have a machine in a good working order available and not in a production situation.

A room with a projector & whiteboard available would also be beneficial.

If a machine has a fault before training commences, we will not undertake a repair on it, and the course may be cancelled with no refund given.

To find out more about this course call the Mills Mills CNC Training Academy on 01926 438363.

Safety Shoes and other P.P.E. Equipment is required.

Should you not have the appropriate Safety Shoes, training can not be given and no refund will be offered.

Siemens Mechanical Maintenance courses run at the Mills Mills CNC Training Academy last for 2 days:

  • Day 1: Start: 9.30am - Finish: 5.00pm
  • Day 2: Start: 9.00am - Finish: 4.00pm


Machine availability will be decided on the day.

Light lunch and soft drinks are provided. For special dietary requirements please contact the Mills Mills CNC Training Academy on 01926 438363 or email

Do you have a question about this course?

Where to find us

Mills CNC Limited
The Mills CNC Technology Campus,
Tachbrook Link,
Tachbrook Park Drive
Leamington Spa, Warwickshire, CV34 6SN

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