Part Tolerances

Part tolerances are an important factor to consider when converting materials. Tolerances are allowable variations in the dimensions of manufactured parts. If the part dimensions are not sufficiently precise, performance of the end product can suffer.

Tolerances vary depending on the methods, tools and materials used in a specific project. For example, 1 millimetre deviation is unlikely to matter much on a 33 metre long roll of single sided tape, however, on a CAD software designed 5 millimetre wide die-cut waterproof vent, it would make a significant difference and in the worst case even prevent the vent from sealing properly in the end product.

We have the capability to achieve tight tolerances, required in certain projects, and our R&D engineers are happy to discuss these and offer bespoke solutions, taking into account specific tool and material tolerance values, along with your specifications.

For different converting processes, standard tolerances to which we adhere in most cases are as follows:

• Lathe-slitting
  non-foams ±0.25mm
  foams ±0.5mm
• Re-wind slitting
  ±0.5mm
• Butt-cutting
  width controlled by slitting or bought-in tape width
  length ± 0.25mm
• Guillotining
  Up to 100mm material length: ±0.5mm
  100mm-300mm: ±1.0mm
  300mm-600mm: ±2.0mm
  600mm-900mm: ±3.0mm
  900mm and longer: ±5.0mm
• Laser cutting
  Materials less than 0.25mm thickness: ±0.2mm
  Materials greater than 0.25mm thickness: ±0.4mm
• Die cutting
  Materials less than 0.25mm thickness: ±0.25mm
  Materials greater than 0.25mm thickness: ±0.4mm
• Rotary die cutting
  Materials less than 0.25mm thickness: ±0.3mm
  Materials greater than 0.25mm thickness: ±0.6mm
• Pick and Place – Patented peeling technology for placement accuracy
  Up to ±0.05 mm alignment

Not sure if our tolerances are tight enough for your project? Get in touch and our engineers will have the solution