Description:
Grey cast iron double-sided tombstone with 50 mm grid holes.

Application:
For modular fixture construction on horizontal machining centres.

Material:
GJL 300 grey cast iron.

Version:
Support and mounting surfaces precision machined.

Features:
- Alphanumerically labelled grid holes enable defined assignment of clamping elements for repeat setups
- Conforms to machine tables according to DIN 55201 and JIS 6337-1980

Dimensions / Technical Data:
- L: 400 mm
- H: 650 mm
- H1: 50 mm
- D / Reamed hole: 12 F7 mm
- D1 / Grid thread: M12
- D2 H6: 20 mm
- D3: M16
- D4: M12
- D5: M16
- H3: 18 mm
- L1: 150 mm
- L2: 320 mm
- L3: 300 mm
- L4: 200 mm
- L5: 200 mm
- L6: 150 mm
- L7: 55 mm
- L11: 25 mm
- N1 / Number of grid holes: 176
- NL / Number lengthwise: 7
- NB / Number across: 10
- Grid spacing: 50 +/-0.02 mm
- Central locating bore: Dia.50 H6
- L1 tolerance: +/-0.03 mm
- L5 tolerance: +/-0.03 mm
- L6 tolerance: +/-0.013 mm
- Flatness reference: 0.02/300
- Reference relation C-D: 0.04
- Drawing surface finish reference: Ra 1.6

Supplied With:
- Ring bolts for hoisting

Accessories / Compatibility:
- Locating pins for positioning on machine tables according to DIN 55201 must be ordered separately
- Protection plugs for unused grid holes must be ordered separately

Notes:
Other dimensions are available on request.

Drawing Reference:
- Grid hole
- D3 / D4: hole for DIN 912 cap screw