Product Description
The PE Form-Fit Liner is engineered to take the exact internal shape of your FIBC bags — including the fill spout and discharge spout — eliminating the folds, pleats, and loose material that can trap product or restrict flow in standard tube liners. The result is a liner that fills evenly, discharges completely, and leaves minimal residue behind.
For operations where filling-line efficiency, product purity, and complete discharge are business-critical — pharmaceutical intermediates, high-value chemical powders, precision food ingredients — form-fit construction delivers a measurable improvement over standard lay-flat liners. We manufacture form-fit liners to match your specific FIBC dimensions and spout configuration, supplied loose, tabbed, or glued for factory installation.
Why Choose This Liner?
- Precision shape matches bag geometry exactly — no folds or pleats that trap product or restrict flow
- Significantly reduces product residue at discharge — improves yield on high-value materials
- Smoother, more consistent filling on automated lines due to predictable liner geometry
- Maximises usable bag volume by eliminating wasted space from loose-fitting tube liners
- Available in food-grade and antistatic film variants for sensitive applications
Typical Applications Industries
- Pharmaceutical intermediates and high-value API powders
- Premium food ingredients: spices, specialty starches, nutraceutical powders
- Fine chemical powders where residue loss represents significant cost
- Automated high-speed filling lines requiring consistent liner geometry
- Polymer resins and masterbatch requiring complete, clean discharge
Technical Specifications
| Construction | Form-fit (matched to FIBC internal geometry, incl. spouts) |
| Material | Virgin LDPE / LLDPE |
| Thickness Range | 50 – 200 micron (3.2 – 8 mil) |
| Fit Customisation | Manufactured to your specific FIBC bag drawing/dimensions |
| Spout Matching | Fill spout and discharge spout liner sections included |
| Fitting Method | Tabbed (8-point) / Glued / Sewn-in (factory installation) |
| Food Grade | Available — FDA 21 CFR / EC No. 10/2011 compliant |
| Antistatic Option | L2 antistatic resin film available on request |
| Residue Performance | Typically 30-50% lower residual product vs lay-flat liners |
| Colour | Natural / White / Black (light-block) / Custom |
| Reusability | Single-use (standard) / Multi-trip (heavier gauge on request) |
| Certification | ISO 9001; SGS tested |
Frequently Asked Questions
Q1: How much product residue can I expect to save with a form-fit liner vs a tube liner?
Performance varies by product flow characteristics, but customers handling fine powders typically report 30-50% lower residual product remaining in the bag after discharge compared to standard lay-flat tube liners. For high-value materials, this directly improves yield and reduces waste disposal costs.
Q2: Do you need my FIBC bag drawing to manufacture a form-fit liner?
Yes — form-fit liners are manufactured to match the specific internal dimensions of your FIBC, including base shape, height, and spout positions. Please provide your bag’s technical drawing or specification sheet, or order the liner together with matching FIBC bags from our FIBC product range for guaranteed compatibility.
Q3: Can form-fit liners be used with automated bulk filling equipment?
Yes — in fact, form-fit liners are the preferred choice for automated filling lines because their predictable, consistent geometry reduces filling variability and the risk of liner misalignment that can occur with loose tube liners.
Q4: Are form-fit liners more expensive than tube liners?
Yes, form-fit liners typically cost 15-30% more than equivalent tube liners due to the additional manufacturing precision required. For lower-value bulk commodities, a standard tube liner may be more cost-effective.
Contact Us
| Maximise yield and filling efficiency with a precision PE form-fit liner. Send us your bag specifications for a matched quote.
→ Request a Custom Quote |
