Replacing plates on SN400-SN500-SN630-SN710

Since the start of the production of the SN400, SN500, SN630 and SN710 in the early 2000’s, the plates on these lathes have undergone several design changes.

Because we cannot keep producing all the possible designs and plates’ variations, we have unified both and created an universal design that fits each lathe model individually, whilst preserving the most important of all – the data on the plates. We have chosen a design that reflects the new and keeps some elements of the old. We created a so called functional package that consist of the plates that are needed the most by the lathe operator.

See further bellow about the design changes and what you must take into consideration when ordering your new set of plates. When placing your order please provide all the necessary variations of your lathe and perhaps provide a picture, we can provide technical assistance.

The final design

This is the functional new design that we came up and can be purchase in our store. For more information contact us at [email protected].

Previous versions of the plates

Latest versions of the plates

Headstock

The older version of the headstock have 1 big and 1 small opening for the levers and comes with 2 round plates positioned on the bigger lever.

The newer version of the headstock have only 2 smaller openings for the lever.

The speed table has been removed as plate on it’s own and the data has been moved to the large plate mentioned above.

The threading chart vary according to two important parameters:

  • the boring diameter of the main spindle for SN400 and SN500
    • 77 mm or 105 mm for the metric execution
    • 3″ or 4 1/8” for the inch execution
  • the boring diameter of the main spindle for SN630 and SN710
    • 77 mm, 105 mm or 130 mm for the metric execution
    • 3″ or 4 1/8” for the inch execution
  • the thread pitch on your longitudal lead screw
    • 6 mm or 8 mm for the metric execution
    • 2/3″ or 3/4″ for the inch execution

Thread cutting box

The older version of the plates on the thread cutting box were composed of three pieces. Now it has been replace by one single larger plate containing all the necessary information from all three plates. The main difference that you need to look to is whether your lathe has 5 or 6 buttons on it.

The version with five buttons includes: Power, Start, Motor, Cooling and Emergency stop

The versions with six buttons includes: Brake release, Start, Motor, Cooling and Emergency stop