Specify Thin PE Film Width with the Usable Web and Order Tolerance
Write the required slit width and the usable width needed by your membrane process separately where they differ. Confirm the tolerance and roll format so a nominal-width quotation can be translated into a workable production order.
Begin with the production requirement
Identify the membrane construction and the width needed at the relevant process stage. If your process includes edge trim, overlap or another allowance, state that allowance as your own design input. Do not assume a universal allowance for every membrane line.
Merily’s thin PE surface-film page lists widths within 1050–1100 mm. The range describes available supply options. Select the width required for your actual order and confirm feasibility with the chosen gauge and quantity.
Separate range from tolerance
The published reference grade is 12±1 μm with width 1080±10 mm. Those figures belong to the stated reference. A supply-width range is not permission for arbitrary variation around any selected width.
If your line requires another tolerance, include it in the RFQ. Ask for the agreed width requirement to appear in the quotation and order rather than relying on a general catalogue range.
Width selection fields
On a phone, swipe the table sideways to see every column.
| Field | Define |
|---|---|
| Required slit width | Actual ordered width |
| Usable width | Your process requirement, if different |
| Allowance | Any buyer-defined trim or overlap |
| Tolerance | Agreed acceptance basis |
| Quantity | Calculation using actual width |
| Roll format | Core, winding, length or weight |
Keep width changes in quantity calculations
At 8 μm, the theoretical PE area reference is about 135 m²/kg. At 1050 mm this is about 128.6 linear metres/kg, while at 1080 mm it is 125 m/kg. A change in width changes the linear length represented by the same material mass.
Use the actual width when comparing quoted roll lengths or material consumption. Keep any production trim-loss assumption distinct from the film-only theoretical calculation. Both should be visible in a meaningful cost comparison.
Confirm the whole roll
Include core, winding, roll length or maximum weight and any diameter limit. A suitable width on paper does not resolve the rest of the handling specification. If matching an existing roll, send a clear label and measurement reference with the request.
Send Merily your selected width, gauge, tolerance requirement, quantity and destination. We can prepare a quotation that keeps the production fit and supply unit together.
Questions for This Purchase
Is 1050–1100 mm a tolerance for every roll?
No. It is the listed supply range. Confirm the selected width and its tolerance.
Can I keep the same metres-per-kilogram figure after changing width?
Recalculate using the actual width and the stated gauge.
Should trim allowance be hidden inside the requested width?
State the production requirement and any allowance clearly so both teams interpret the order consistently.
Send your specification.
Get a clear material quote.
Tell us what you produce, the material you need and your required roll format. Include the quantity and destination port so we can prepare the product and packing details together.
Useful details: thickness or basis weight, width, roll length or weight, core, quantity and application. For release film, add coated side and release requirements.
Standard production: approximately 10 days for one 40-ft container order. Customized specifications: approximately 10–15 days. Confirm the schedule with the final order.