Extra-wide Nonwoven Calendering Machine

Ultra-wide processing capability with a maximum width of 7,000 mm; one of the widest thermal bonding units available in the industry.

Global roll surface temperature uniformity of ≤±0.65°C across the full 7,000 mm width, achieved through a peripheral deep-hole heat exchange structure and a closed-loop temperature control module.

Transverse basis weight deviation of ≤±2.5 g/m², ensuring consistent quality for large-format products.

Frame made of extra-thick steel plate with extended annealing for stress relief, preventing frame deformation and roll misalignment during ultra-wide operations.

Each roll is dynamically balanced under simulated load (three-stage process) to G0.8 precision; heavy-duty bearing housings support the extended roll assembly.

Servo-hydraulic pressure system combined with a roll-crossing fine-adjustment mechanism (0–30 mm stroke) compensates for roll deflection under pressure across the entire width.

Large-scale geotextile production for road construction, drainage systems, and soil/water conservation; finished width directly affects on-site installation efficiency.

Construction membranes, including base fabrics for waterproof roofing membranes, roofing underlayment, and facing materials for insulation.

Production of heavy-duty industrial nonwovens requiring exceptional widths, thereby reducing the need for downstream splicing processes.