Pneumatic indexing tables The plate is driven by a very compact rack and pinion swinging device, wich is totally contained within the table frame. This enables the optimum utilization of the space surrounding the table These tables are also fitted with a center swivel joint to supply air line to the fixtures mounted on the plate When indexing the plate does not lift In the T.R.278 model, plate position is ensured by a tapered pin. The plate gets pneumatically locked on the base