Products
Fine Bar Tech’s Products
Fine Bar Tech has developed original technologies on the fields of manufacturing precise rolls, repairing rolls, manufacturing various machines, polishing and mirror finishing, hard chrome plating, and designing and manufacturing various jigs. Since Fine Bar Tech assume to prove worthy of our customers’ trust, we has sedulously improved our technologies to provide high quality products to our customers.
φ40×1800×2015L
Work roll for tension leveling
A cartridge attached.
Circularity tolerance: 0.001mm or less
Cylindricality tolerance: 0.005mm
Run-out tolerance of the circumference: 0.010mm
Hard chrome plating: 40±10μm
Surface-roughness: Ra0.05 or less
φ100×1800L
Work roll for tension leveling
A cartridge attached.
Circularity tolerance: 0.001mm or less
Cylindricality tolerance: 0.005mm
Run-out tolerance of the circumference: 0.010mm
Hard chrome plating: 40±10μm
Surface-roughness: Ra0.05 or less
φ55×1466L
Work roll for roll leveling
Circularity tolerance: 0.001mm
Cylindricality tolerance: 0.005mm
Run-out tolerance of the circumference: 0.010mm
Pair-difference: 10μm
Surface-roughness: Ra0.2 or less
φ32×1480L
Intermediate roll for tension leveling
A cartridge attached.
Circularity tolerance: 0.001mm or less
Cylindricality tolerance: 0.005mm
Run-out tolerance of the circumference: 0.010mm
Surface-roughness: Ra0.05 or less
φ75×155L
Backup roll for tension leveling
A bearing outer ring attached with to the axis
Circularity tolerance: 0.006mm or less
Cylindricality tolerance: 0.006mm or less
Run-out tolerance of the circumference: 0.010mm or less
Pair-difference: 0.010 or less (at the dimension of H)
Surface-roughness: 0.8S or less
φ95×100L
Backup roll for roller leveling
Circularity tolerance: 0.010mm
Cylindricality tolerance: 0.015mm
Run-out tolerance of the circumference: 0.010mm (On the basis by the hole)
Pair-difference: 0.010mm
Surface-roughness: 0.6S or less
Roll for metal rolling φ400×500W×1000L
Circularity tolerance: 0.005mm
Cylindricality tolerance: 0.01mm
Run-out tolerance of the circumference: 0.01mm
Surface-roughness: Ra0.01 or less
Super mirror finished
Hard chrome plating: 150μm
Shot roll φ135×500L
Mid-air type
A macrophotography of the surface of the roll.
Circularity tolerance: 0.01mm
Cylindricality tolerance: 0.01mm
Run-out tolerance of the circumference: 0.01mm on the basis by the axis (the tolerance).
Surface-roughness: Ra2.2
Hard chrome plating: 20-30μm
Static balance: 35g
φ40×1250W×1316L
A macrophotography of the surface of the roll.
A macrophotography of the surface of the roll.
Circularity tolerance: 0.002mm
Cylindricality tolerance: 0.01mm
Run-out tolerance of the circumference: 0.018mm
Surface-roughness: Ra2.5/Rz14.0
Hard chrome plating: 65±5μm
High hardness hard chrome plating (HEEF25)
About the measurement of circularity
The conventional precise measurements of circularity, such as the round test or the Talyrond, could not measure objects with a length over 1000mm, like rolls for leveling, since the length of object that could be measured with those tests was limited to about 500mm long. Recently, however, we make it possible to measure circularity of rolls without reference to the length of the rolls at the same level as the conventional precise measurements of circularity.
About the mentions
SUJ-2: up to 5mm expanding
SC material: up to 3mm expanding
SCM material: up to 3mm expanding
Hardening: the hardness is around HS90UP
The hardness of the Hard chrome plating: around HV1000