How does the GC90-FMS800 dual-host laminating machine define a new standard for woven bag lamination?

In the field of woven bag packaging, such as valve bags, the quality and efficiency of lamination directly determine the product's moisture resistance, aesthetics, and final strength. Facing industry pain points such as low efficiency of single-sided lamination, inconsistent quality between two processes, and high energy and labor costs, the GC90-FMS800 dual-host double-sided extrusion lamination unit was developed. With its forward-looking "one-process, double-sided forming" concept, it provides the ultimate solution for companies pursuing ultimate efficiency and stable quality.

I. Industry Challenges: Constraints of Traditional Lamination Processes

Traditional single-sided lamination or multi-stage lamination processes have significant bottlenecks:

Low Efficiency: Completing double-sided lamination requires two independent processing steps, resulting in long production cycles and limited capacity.

Quality Fluctuations: The process parameters between the two processes are difficult to completely match, leading to differences in the uniformity and adhesion strength of the lamination on both sides of the fabric.

High Costs: Repetitive energy consumption, increased manual intervention, and more complex production management drive up overall manufacturing costs.

Complex Operation: Requires multiple loading and unloading operations, alignment, and parameter adjustments, demanding high worker skills and prone to errors.

II. Breakthrough Solution: The Core Revolution of GC90-FMS800 – Synchronous Double-Sided One-Step Molding

GC90-FMS800 is not simply a combination of equipment, but a redesign based on an integrated process.

1. Dual-Core Driven, High-Efficiency Synchronization:

The core of the unit is equipped with two 90mm diameter high-efficiency screw extruders, paired with dual T-die heads and dual composite roller devices. This allows the plastic melt to be extruded synchronously, independently, and precisely, completing the coating of both sides of the cylindrical woven fabric in one step on the same production line. The mechanical design speed reaches up to 250 meters per minute, elevating production efficiency to a new level.

2. Intelligent Control, Precise and Stable:

* Fully Automatic Tension Management: From automatic unwinding of 140-meter large-diameter rolls to the entire winding process, a closed-loop control system using tension sensors and controllers ensures stable and constant tension delivery of the base fabric during high-speed operation, preventing wrinkling and stretching deformation.

* EPC Automatic Deviation Correction: The unwinding stage is equipped with an automatic deviation correction system with a stroke of ±100mm, correcting roll deviation in real time and laying the foundation for precise lamination.

* Direct Weight Input: The intelligent control system allows operators to directly input the target lamination weight (g/㎡) on the touchscreen. The system automatically coordinates parameters such as extrusion rate, making quality control simpler and more precise than ever before.

3. High-End Configuration, Guaranteed Superior Quality:

* Precision Temperature Control: Employing Omron PID self-tuning temperature controllers and Taiwanese-made thermocouples, precise temperature control is achieved at key points such as the extruder, die head, and filter, ensuring optimal plastic melt flow and lamination effect.

Precision Manufacturing of Core Components: Utilizing a 5CrNiMo internally heated T-shaped die head ensures uniform and stable material output; the 700mm diameter matte-finish cooling roller (spiral cooling) is manufactured by a professional roller factory, ensuring rapid and uniform cooling and shaping of the film layer.

Automated Auxiliary System: Integrating automatic edge trimming, edge material recycling and crushing, punching, and non-stop automatic roll changing devices minimizes manual intervention, achieving continuous and clean production.

III. Core Value We Bring You

Efficiency Multiplier: Double-sided lamination is completed in a single process at a speed of up to 250m/min, significantly shortening delivery cycles and improving market responsiveness.

Consistent Quality: Synchronized processes ensure consistent thickness, adhesion strength, and appearance on both sides of the fabric lamination, significantly improving product performance and reliability.

Cost Optimization: Reduced heating and cooling processes result in lower energy consumption; high automation saves labor; reduced intermediate steps lower losses and management costs.

Easy to operate: Based on a Siemens PLC and Chinese touchscreen intelligent control system, parameters are centrally set and synchronously controlled. Production and error records for each shift are clearly displayed, reducing reliance on skilled workers.

IV. Robust Reliability Commitment:

From the 38CrMoAlA alloy steel screw and barrel to the Shihlin/Huichuan brand motor inverters, and to key pneumatic and transmission components, the GC90-FMS800 uses high-quality components in every aspect related to durability and stability. We provide comprehensive technical support and training to ensure the equipment performs at its maximum efficiency in your factory.

The GC90-FMS800 dual-main-machine laminating unit is more than just a piece of equipment; it's a strategic investment to upgrade your woven bag products, strengthen your market competitiveness, and achieve cost reduction and efficiency improvement.