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| Brand Name: | Cholly |
| Model Number: | SJ110-FMS2400 |
| MOQ: | 1 |
| Price: | Negotiable |
When PE or PP is applied to mineral powder sack fabric, the extrusion system must continuously supply molten resin at a rate matched with the coating width, thickness and line speed.
This 400–450 kg/h Extrusion Output Film Coating Machine uses two 110 mm extrusion units with a 33:1 screw L/D ratio. It is designed for single- or double-sided coating of PP woven mineral powder sack fabric.
The 400–450 kg/h value describes extrusion output, not the total weight of finished coated rolls produced per hour.
Resin demand is mainly determined by:
text{Resin demand}propto text{Coating width}times text{Coating thickness}times text{Line speed}times text{Number of coated sides}
| Parameter change | Influence on resin demand |
|---|---|
| Increased coating width | Covers more substrate per unit time |
| Increased coating thickness | Uses more resin per unit area |
| Higher line speed | Processes more substrate per hour |
| Single-side to double-side coating | Requires coating on both surfaces |
| Change of resin | Requires different melting and temperature settings |
| Change of substrate surface | May affect preheating and lamination conditions |
The production setup must balance the 400–450 kg/h extrusion output with an 800–2200 mm coating width, 0.008–0.050 mm thickness and 20–130 m/min line speed.
The line has two 110 mm extruders and two lamination units, allowing resin to be applied to both sides of the woven substrate.
Each extruder includes a 75 kW motor, frequency converter, 60 kW ceramic heater, hydraulic screen changer and automatic temperature control. A 2500 mm adjustable die controls the extrusion width.
For double-sided coating, the following parameters should be defined separately for each side:
The specification does not clearly state whether 400–450 kg/h is the combined output of both extruders or the output of each unit. This should be defined in the technical agreement.
The machine is used for PE or PP extrusion coating of woven fabric for industrial mineral powder, mineral granules, inorganic fillers and metallurgical raw-material sacks. The coated fabric can proceed to printing, cutting and sewing and may improve surface coverage, airtightness and moisture resistance according to the final structure. Fine-powder containment, electrostatic control, chemical compatibility and dangerous-goods compliance require separate evaluation of coating continuity, liner, seams and finished sack testing.
| Specification | Machine configuration |
|---|---|
| Model | SJ110-FMS2400 |
| Extrusion output | 400–450 kg/h |
| Extrusion configuration | Twin extruders |
| Number of screws | Two |
| Screw diameter | 110 mm |
| Screw L/D ratio | 33:1 |
| Screw speed | 104 rpm |
| Extruder motors | 2 × 75 kW |
| Coating material | PE or PP |
| Coating width | 800–2200 mm |
| Coating thickness | 0.008–0.050 mm |
| Line speed | 20–130 m/min |
| Die width | 2500 mm |
| Roller length | 2400 mm |
| Maximum roll diameter | Ø1300 mm |
| EPC correction range | ±100 mm |
| Control system | S PLC and touchscreen |
| Total power | 280 kW |
Trial production should record more than screw speed:
These records help establish settings for each mineral sack fabric specification instead of treating 400–450 kg/h as a fixed operating value.
No. It is the resin extrusion output. Finished roll output also includes the weight of the PP woven substrate.
The twin-extruder configuration allows the two sides to be set separately. The final combination should be confirmed through trial production.
This cannot be guaranteed from coating alone. Powder containment also depends on coating continuity, openings, seams, liner and finished sack construction.
No. It performs coating and rewinding. Printing, cutting and sewing require downstream equipment.
