Tubes – Technical specifications

Manufacturing tolerances for PMMA and PC tubes at 20° ambient temperature

Roundness tolerances
(in % of external diameter)
Ø 30 mm to Ø 249 mm: ± 1.0 %
Ø 250 mm to Ø 500 mm: ± 1.5 %
Wall thickness tolerances (in %) Ø 30 mm to Ø 249 mm: ± 10.0 %
Ø 250 mm to Ø 500 mm: ± 12.5 %
Length tolerances (in mm) Production lengths up to 5,000 mm: ±10.0 mm
(automatic cutting on the extrusion line)
Separate cutting service (special cutting to length by hand)
for lengths (L)
L ≤ 1,000 mm: ± 1.0 mm
1.000 <L ≤ 2,000 mm: ± 1.5 mm
L >2.000 mm: by arrangement
A slight indent of up to approx. 0.2 mm may occur on the cut edges.
Tolerance for lateral straightness Max. permissible deviation over 1,000 mm length: 3.0 mm
Optical properties Possible optical rings and extrusion marks cannot be avoided in production.
Square tubes Specific tolerances on request

Precise fit according to specifications

Our tolerances for PMMA and PC tubes are available as an overview to download.