Concentricity test devices
For the precise clamping of rotationally symmetrical workpieces, e.g. to perform true-running measurements.
On the basis of JFA Bench centers, we design individual measuring systems, complete measuring systems for the production-related application or the fine measurement room.
For more information and examples, see the special 'tailor-made measurement systems'.
Construction test bench
Test bench made of cast iron or hard natural stone - granite. With medium-length T-guiding and clamping slot to DIN 650 nominal 14 H8 The measuring surface of the cast test bench is hand-scraped and finely touched. The test bench of the natural granite - granite is ground and hand-lapped. Flatness of measuring surfaces as desired.
Sizes of the cast test benches
800 x 200 - 1000 x 220-1200 x 200 - 1500 x 250 - 2000 x 300 mm.
Other sizes available upon request.
Sizes of the test benches of natural hardstone - granite
1000 x 300 - 1200 x 300 - 1600 x 300 - 2000 x 400 - 2500 x 600 mm, or as desired.
Additional T-slots, tapped holes, threaded inserts, machined outer sides exactly as desired.
Storage of the test bench
On table sets or steel frame bases. Steel ball inserts at the bottom of the measuring benches are included.
Construction tailstock pair
Body made of special cast. The quills, which T-nuts and the interchangeable tips 60 ° are made of hardened steel. One rigid tailstock quill and one tailstock with axially adjustable and lockable quill. The tailstock can be adjusted to T-slots, nominal size 14 according to DIN 650.
Up to 300 mm center height allows the tailstock set over by an eccentric clamping lever. Tailstocks with center heights 250 and 300 mm additionally with T-slot screws. Fitted from peak height 400 mm exclusively with T-slot screws.
Tailstock pair - Hand lever
The spindle of a tailstock is spring loaded and adjustable via a hand lever.
Up to and including 300 mm center height.
Tailstock pair - Handwheel
The spindle of a tailstock is adjustable by a self-locking drive with the help of a hand wheel. Particularly suitable for the sensitive ranges from mild to severe and deforming specimens.
Technical data on JFA Tailstocks see 'Tailstocks'.