·Line-Integrated Slitting Solution
Unlike general-purpose standalone slitters that cannot handle hot, soft SMS and thermal bond nonwovens directly from calendering, this machine is specifically optimized for in-line integration with the company's nonwoven thermal calendering lines. Unwind damping and feed nip structures are tailored to accept warm, bulky webs directly from the calendar without intermediate transfer, eliminating wrinkling and stretching defects inherent in secondary handling. Finished roll edge squareness improves by 90% compared to standalone slitters processing re-wound materials.
·Three-Zone Closed-Loop Tension Control
The system employs independent tension regulation across unwind, slitting, and winding zones using EtherCAT multi-axis synchronized servo drives with floating roll tension sensors providing real-time feedback at each zone. Tension fluctuation is maintained within ±0.2N across all zones. A programmable tapered tension winding program automatically reduces winding tension as roll diameter increases during build-up, preventing the common defects of over-tight inner layers, loose outer layers, and telescoping (telescope rolls) on soft, compressible nonwovens.
·Dual-Model Speed Architecture
The standard configuration delivers 400m/min for general production, while the high-speed heavy-duty configuration achieves 1600m/min with unwind capacity up to Φ3500mm and rewind up to Φ1500mm—significantly exceeding the industry norm of Φ1800mm. Single loading supports over 8 hours of continuous production, substantially reducing roll change downtime. This dual-speed architecture serves both small-batch sample production and 24/7 high-volume hygiene material manufacturing.
·Quick-Change Slitting System
Pneumatic slitting blades with minimum slit width 15mm and axial runout ≤3μm deliver clean, fiber-free cut edges on tightly woven SMS and meltblown materials. Blade holders are mounted on a hardened and dynamically balanced cutter shaft with 5-minute changeover for width adjustments, eliminating the need for complete shaft disassembly. The system prevents fiber shedding at cut edges, meeting EU hygiene material standards without secondary edge trimming.
·Heavy-Duty Frame Construction
The frame is constructed from 40mm thick steel plate with full welding and 60-day natural aging to completely eliminate welding-induced internal stress, combined with integrated vibration-damping bases. Even at 1600m/min on 5400mm ultra-wide webs, the frame remains free from vibration and guide roll deflection. Service life extends 65% beyond conventional sheet-metal framed equipment.