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.
