During stenter factory acceptance, how to verify actual working width of pin chain and crosswise temperature uniformity?
• Effective width is inner pin-plate distance; measured value must be within ±5 mm of nameplate.
• Measure width at entry, middle and exit; deviation over 10 mm indicates worn chain rail.
• Check crosswise temperature uniformity at 9 points; variation should be ≤±2°C.
• Pin chain pitch is commonly 60 mm or 75 mm; match to fabric edge weight to prevent edge loss.
• Run empty machine to 180°C, stabilize 15 minutes before temperature testing.
• Measure width at entry, middle and exit; deviation over 10 mm indicates worn chain rail.
• Check crosswise temperature uniformity at 9 points; variation should be ≤±2°C.
• Pin chain pitch is commonly 60 mm or 75 mm; match to fabric edge weight to prevent edge loss.
• Run empty machine to 180°C, stabilize 15 minutes before temperature testing.