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| Brand Name: | Cholly |
| Model Number: | SJ110-FMS2400 |
| MOQ: | 1 |
| Price: | Negotiable |
The coating structure of FIBC fabric depends on the packaged material, liner configuration, transportation environment and moisture or powder-control requirements. Some FIBC fabrics require coating on one side, while others require surface coverage on both sides.
This Double-Sided Twin-Extruder Film Coating Machine has two 110 mm extrusion units and two lamination sections. It can apply PE or PP coating to one or both sides of FIBC and jumbo bag woven fabric.
The twin-extruder structure provides separate extrusion and temperature-control conditions for the two coating stages. It does not mean that every FIBC fabric requires double-sided coating.
| System | Main configuration | Function for FIBC fabric |
|---|---|---|
| First extruder | 110 mm screw and 75 kW motor | Applies resin to the first side |
| First lamination unit | Chill, silicone and pressing rollers | Presses and cools the first coating |
| Second extruder | Independent 110 mm screw and temperature control | Supplies resin for the second side |
| Second lamination unit | Independent cooling and pressing system | Completes the second coating |
| Double-station unwinder | Ø90 mm air-expanding shafts and tension control | Supplies FIBC fabric |
| Double-station rewinder | Friction rewinding and automatic tension control | Collects the coated rolls |
The two extruders can be set according to the order requirements. Different resin or thickness settings on each side should be verified through trial production.
| FIBC fabric requirement | Possible coating arrangement | Information to confirm |
|---|---|---|
| Coverage required on one surface | Single-sided coating | Coated-side orientation |
| Surface coverage required on both sides | Double-sided coating | Thickness and continuity on each side |
| Separate inner liner included | Select according to packaging needs | Functions of the coating and liner |
| Downstream printing required | Confirm the printing surface | Ink compatibility |
| Fine powder packaging | Coating alone is not sufficient | Seams and liner construction |
| Outdoor transportation | Combined evaluation required | UV, rain and covering conditions |
Double-sided coating does not automatically create a completely waterproof or leak-proof FIBC. Finished performance also depends on coating continuity, seams, spouts and liner construction.
The FIBC substrate enters through the double-station unwinder and passes through double-sided brush cleaning and preheating.
The first extrusion and lamination unit applies coating to one side. The fabric then enters the second extrusion and lamination section for coating on the other side.
Each lamination stage uses a Ø600 mm double-jacket water-cooled mirror roller. After coating, the web passes through photoelectric edge tracking, trimming, waste removal and tension-controlled rewinding.
The machine is used for single- or double-sided extrusion lamination of FIBC, jumbo bag and bulk bag woven fabric. The coated material can be converted into outer fabric for bulk packaging of fertilizer, minerals, metallurgical materials, cement and other industrial products. Printing, cutting and sewing follow the coating process. Airtightness, moisture resistance, electrostatic properties, chemical compatibility and rated load must be verified through the coating, woven fabric, liner, lifting construction and finished-FIBC testing.
| Specification | Machine configuration |
|---|---|
| Model | SJ110-FMS2400 |
| Machine structure | Double-sided twin-extruder coating line |
| Extrusion units | Two |
| Screw configuration | 2 × Ø110 mm |
| Screw L/D ratio | 33:1 |
| Extruder motors | 2 × 75 kW |
| Lamination units | Two |
| Coating material | PE or PP |
| Coating width | 800–2200 mm |
| Coating thickness | 0.008–0.050 mm |
| Line speed | 20–130 m/min |
| Extrusion output | 400–450 kg/h |
| Die width | 2500 mm |
| Chill roller | Ø600 mm double-jacket water-cooled roller |
| Maximum roll diameter | Ø1300 mm |
| EPC correction range | ±100 mm |
| Control system | S PLC and touchscreen |
| Total power | 280 kW |
Buyers should provide:
The relevant extrusion and lamination section can be used according to the production setup. The web path should be confirmed during commissioning.
The twin-extruder configuration allows separate parameter settings. The selected thickness combination should be verified through trial production.
Not necessarily. Coating and liners perform different functions. The need for a liner depends on particle size, moisture, cleanliness and closure requirements.
No. It coats and rewinds FIBC fabric. Printing, cutting, sewing, lifting-loop installation and finished-product testing require downstream processes.
