Custom-Size Pre-Opened Bags on a Roll are pre-opened bags supplied on a roll developed around this product-specific requirement: Application-specific width length gauge opening perforation core and roll configuration. Material and construction chosen after the nonstandard dimensions and packing process are defined. It is intended for OEM packing lines, unusual product geometries and equipment that cannot use a routine stock dimension. Runsheng manufactures this product to confirmed project requirements, with width, length, opening direction, thickness, material, perforation pitch, core, winding and roll quantity reviewed before production.
About Custom-Size Pre-Opened Bags on a Roll
- Format: Pre-opened bags supplied on a roll
- Product distinction: Application-specific width length gauge opening perforation core and roll configuration
- Material or construction: Material and construction chosen after the nonstandard dimensions and packing process are defined
- Critical specification: application-specific width, length, opening, thickness, perforation, core and winding
- Customization: width, length, opening direction, thickness, material, perforation pitch, core, winding and roll quantity
Key Specifications
| Product format | Pre-opened bags supplied on a roll |
|---|---|
| Primary differentiator | Application-specific width length gauge opening perforation core and roll configuration |
| Material or construction | Material and construction chosen after the nonstandard dimensions and packing process are defined |
| Critical specification | application-specific width, length, opening, thickness, perforation, core and winding |
| Thickness or caliper | Quote-specific; requested mil or micron value must be confirmed for the selected structure |
| Customization | width, length, opening direction, thickness, material, perforation pitch, core, winding and roll quantity |
| Final approval basis | Buyer specifications, application review, samples or drawings, and confirmed production requirements |
Available Custom-Size Pre-Opened Bags on a Roll Sizes
Frequently specified dimensions for this application include the examples below. They are producible pre-opened-bag configurations, not fixed limits, and final sizing must account for the product, opening clearance, material, filling, sealing and equipment.
| Width × Length | Approximate metric size | Product-specific use |
|---|---|---|
| 3 × 4 in | 76 × 102 mm | compact custom packs |
| 4 × 8 in | 102 × 203 mm | long narrow formats |
| 6 × 10 in | 152 × 254 mm | extended component bags |
| 8 × 12 in | 203 × 305 mm | large assemblies |
| 10 × 15 in | 254 × 381 mm | maximum listed example |
Custom widths and lengths can be manufactured according to product dimensions, packaging equipment, filling, sealing, material and application requirements.
Product-Specific Features
The design centers on application-specific width, length, opening, thickness, perforation, core and winding. Unlike a generic package, the quotation must connect the material and construction to OEM packing lines, unusual product geometries and equipment that cannot use a routine stock dimension. Any functional performance requirement must be defined by the buyer and confirmed rather than inferred from the product name.
Custom Manufacturing Options
Quote variables include width, length, opening direction, thickness, material, perforation pitch, core, winding and roll quantity. Availability and final construction depend on technical review; optional features are not treated as standard unless confirmed for this product and application.

Automation and Packaging Equipment
Equipment fit is not assumed. Review machine envelope, feed path, index length, sealing jaws, core support and maximum roll diameter. Provide equipment drawings or specifications, the current package where available, filling and sealing details, and operating constraints before the final format is approved.

How Custom-Size Pre-Opened Bags on a Roll Work
Custom-Size Pre-Opened Bags on a Roll are presented as connected, pre-opened bags on a roll. During packing, the accessible opening is presented for loading; the filled bag is separated at the specified perforation and sealed by the selected process. The operating result depends on application-specific width, length, opening, thickness, perforation, core and winding. The application-specific width length gauge opening perforation core and roll configuration must therefore be confirmed with the roll, feed and sealing requirements rather than assumed to fit every machine.
Applications
Custom-Size Pre-Opened Bags on a Roll are intended for OEM packing lines, unusual product geometries and equipment that cannot use a routine stock dimension. Suitability depends on the packed product, handling environment, required function and downstream process. Buyers should identify critical risks or acceptance criteria so the proposed construction can be evaluated.

How to Select Custom-Size Pre-Opened Bags on a Roll
Start with application-specific width, length, opening, thickness, perforation, core and winding. Then confirm width, length, opening direction, thickness, material, perforation pitch, core, winding and roll quantity. Buyer specifications, application review, samples or drawings, and confirmed production requirements. This prevents a material, fit, presentation or equipment assumption from being treated as a confirmed production specification.
Review the Pre-Opened Bags on a Roll category for the broader product family, or compare Clear Pre-Opened Bags on a Roll when that configuration may better match the application.
What distinguishes Custom-Size Pre-Opened Bags on a Roll from related configurations?
Application-specific width length gauge opening perforation core and roll configuration. The distinction must be evaluated together with the packed product, process and required presentation or functional result.
What must be confirmed before Custom-Size Pre-Opened Bags on a Roll are manufactured?
Confirm application-specific width, length, opening, thickness, perforation, core and winding, together with width, length, opening direction, thickness, material, perforation pitch, core, winding and roll quantity. Exact values remain project-specific unless they are stated in the specification or size tables above.
How to Specify and Request a Quote
Provide finished dimensions, requested thickness or material caliper, material or functional requirement, packed product, quantity, artwork, construction details, intended application, filling and sealing method, packing format, required date, and equipment information where relevant. Include a current sample or controlled drawing when fit or process compatibility is critical.
Frequently Asked Questions
Which dimensions define a custom bag?
The answer depends on application-specific width, length, opening, thickness, perforation, core and winding. Supply the relevant product, process and acceptance information so the requirement can be confirmed in the quotation.
What equipment measurements are needed?
This option can be evaluated when the required construction, material, dimensions and application are supplied. It is not assumed to be available for every configuration.
Can nonstandard perforation pitch be reviewed?
Provide a sample or drawing, expected quantity and the operating or presentation requirement. The final recommendation follows technical and artwork review rather than a generic compatibility statement.
What distinguishes Custom-Size Pre-Opened Bags on a Roll from related configurations?
Application-specific width length gauge opening perforation core and roll configuration. The distinction must be evaluated together with the packed product, process and required presentation or functional result.
What must be confirmed before Custom-Size Pre-Opened Bags on a Roll are manufactured?
Confirm application-specific width, length, opening, thickness, perforation, core and winding, together with width, length, opening direction, thickness, material, perforation pitch, core, winding and roll quantity. Exact values remain project-specific unless they are stated in the specification or size tables above.













