Expert in cold processing on cylindrical bars and tubes, CALIBRACIER operates on all types of steel grades or non-ferrous alloys: carbon steel, alloy steel, stainless steel, nickel, aluminium, titanium bases...
● Complete Supply : High-technicity products
● Performing grinding services on your materials
● Long bars : up to 13 meters
Analysis of your specifications to offer the most suitable technical and organizational solution.
Peeling process : CALIBRACIER's cutting tool removes the superficial layer and surface defects while calibrating the piece to obtain the requested diameter. On cylindrical steel bars, each peeling step allows the removal of one to several millimeters. This peeling process is followed by a straightening step.
Ø 10mm -
Ø 200mm
ISO IT 10, 11, 12
(≈ 0,10mm)
Min : 2,8m -
Max : 12m
CALIBRACIER's roller straightening machines and presses ensure the straightening of bars, guaranteeing the required straightness and enhancing overall quality. This is a fundamental step before any grinding process.
Ø 6mm -
Ø 200mm
up to 0.05mm/meter
up to 13 meters
After the preliminary steps of peeling and straightening processes, centerless grinding guarantees high-precision geometric parameters: a very strict tolerance on diameter, an improved surface quality (roundness, roughness: up to 0.30µm Ra...).
Cylindrical centerless grinding is a cold process in which the round bar passes through the machine and between two grinding wheels. During the centerless grinding process, the metal removal rate is very gradual and allows CALIBRACIER to work on round and very long bars (up to 13 meters).
Ø 1,5mm -
Ø 200mm
ISO IT 5, 6, 7, 8, 9 (0.005 mm)
up to 13 meters
As a final step, polishing improves the overall surface state of the bars. It is commonly used on bars involved in critical application.
Ø 2mm -
Ø 160mm
RA up to 0.20 µm
up to 10 meters
As an additional service, individual bars can be cut-to-length by milling saws or band saws.
Ø 6mm -
Ø 400mm
of the order of a milimeter
15 mm minimum