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Tinsley Bridge Group

Machine Tool Slideways

The ultimate in manufacturing precision

Tyzack Machine Knives meet the tightest of tolerances required by high end, heavy duty machine tools. They are the pinnacle of dimensional control and surface finish in the most demanding applications.

  • Manufactured from the finest AISI A4 tool steel.
  • Extensive stocks of raw material provide short lead times.
  • Uniformly through hardened heat treated to HRc 60 +- 2HRc
  • Maximum dimensional stability.
  • Ultimate shock and vibration absorption compared to linear track systems.
  • Complete homogeneity and uniform mass.
  • Complex sections considered.

Download our ULTIMAX Slideways brochure

ULTIMAX Through Hardened Slideways

Raw Material Through Hardened EN 10083-1 (SIM. EN9 – W1.0535)
A.I.S.I. A4 Grade 425
Hardness Through Hardened 58-62 HRc


Specification Metric Imperial
Maximum Length Individual Piece 4500mm 177″
Parallelism 0.005mm 0.0002″
Surface Finish 0.4-0.8mmR a 16-32 micro inches CLA
(in free state)
Face Bow
Edge Bow
Squareness 0.005mm/100mm 0.0002″/4″
Angularity 0.013 0.0005″
Tenons Parallelism to edge 0.005mm 0.0002″
Holes Position from Datum
(Drilled in the hard)
Butt Ground in sets Maximum Step at Joints 0.005mm 0.0002″

Joanne Gibson

Sales Office Manager
Phone: +44 (0) 114 221 1166

Andy Wake

Sales Manager
Phone: +44 (0) 114 221 1165
Mobile: +44 (0) 7884 310 702

David Doman

Product Manager
Phone: +44 (0) 114 221 1080
Mobile: +44 (0) 7432 723784

Nico Rohm

Tyzack representative in Germany, Switzerland, Lichtenstein and Austria.
Phone: +49-(0)89-210258-89