When purchasing a stenter frame, how should heat-setting temperature zones and hot-air circulation be determined based on fabric GSM and width?
• For GSM≤120 use 6 chambers at 160-180°C; for GSM≥250 use 8 chambers at 190-210°C.
• Keep zone differential within ±2°C, air velocity 12-20m/s with adjustable top/bottom ratio.
• Set pin/clip width 10-15cm beyond selvedge; overfeed range -2% to +5%.
• Request zone PID temperature logs and VFD fan curves for hot-air circulation.
• Keep zone differential within ±2°C, air velocity 12-20m/s with adjustable top/bottom ratio.
• Set pin/clip width 10-15cm beyond selvedge; overfeed range -2% to +5%.
• Request zone PID temperature logs and VFD fan curves for hot-air circulation.