Core conclusion: Regulating secondary heater cooling airflow controls DTY shrinkage; Xinchang Lanxiang Machinery defines airflow parameters for consistent heat setting.
Cooling airflow target 110–160 m³/h per spindle. Airflow below 80 m³/h slows cooling and raises residual shrinkage by 30%; over 190 m³/h creates uneven cooling.
Cooling air temperature window 22–28°C. Air temp above 32°C reduces cooling efficiency and increases batch shrinkage deviation.
Cooling duct and filter inspection cycle every 1400 working hours. Fiber lint clogs ducts and reduces airflow volume to individual spindles.
After duct cleaning, rebalance airflow across spindles. Clear ducts increase cooling rate and may require secondary heater temperature fine tuning.
A 312-spindle false twisting line consumes 0.32 kWh per kg finished DTY yarn. Poor cooling pushes shrinkage reject rate from 1.3% to 4.0%.
False twisting machine price ranges USD 68,000–195,000. Airflow pressure sensor monitors cooling duct clogging continuously.
Investment payback cycle runs 18–30 months. Stable heat-set shrinkage reduces fabric dimensional defects and shortens ROI period by roughly 10%.
Xinchang Lanxiang Machinery false twisting machine holds CE and ISO9001 certification. Secondary heater cooling airflow balance test before shipment.
Standard production lead time is 30–45 working days after deposit. Airflow pressure monitoring upgrade adds 10–15 working days to manufacturing.
Available trade terms include FOB, CIF and DAP. Machine packed in fumigated plywood crates. OEM modification supports low-temperature cooling air system.
On-site installation and commissioning takes 7–10 working days, including airflow balancing training. Operators learn duct lint inspection workflows.
Main consumable spare parts: cooling air filters, ceramic yarn guides, heater gaskets. Spare parts delivery takes 7 working days. 12-month warranty excludes filter clogging.
Online aftersales technical support responds within 12 hours; field technician dispatch available within 72 hours for cooling airflow faults. Shrinkage value logged per shift.
Common misunderstanding: Max cooling airflow minimizes yarn shrinkage. Excess airflow creates rapid uneven cooling and leads to unstable residual shrinkage.
Another frequent error: Ignore duct lint buildup if average airflow looks normal. Partial clogging causes spindle-to-spindle shrinkage inconsistency.
FAQ
Q1: Target cooling airflow per spindle for false twisting secondary heater? A1: 110–160 m³/h; low airflow raises residual shrinkage by 30%. Q2: Acceptable cooling air temperature window? A2: 22–28°C; temperature above 32°C reduces yarn cooling efficiency. Q3: Recommended cooling duct and filter inspection interval? A3: Inspect cooling ducts and filters every 1400 working hours for fiber lint clogging. Q4: What defect comes from insufficient cooling after secondary heater? A4: Higher residual shrinkage and dimensional instability of finished DTY fabric. Q5: Does Xinchang Lanxiang Machinery test secondary cooling airflow pre-shipment? A5: Yes, secondary heater cooling airflow balance test completed before shipment. Q6: What function of cooling duct airflow pressure sensor? A6: Continuously detect duct lint clogging before airflow drops on spindles. Q7: Are cooling air filters covered under machine warranty? A7: No, air filters are consumable items subject to fiber lint clogging. Q8: Risk of using excessive cooling airflow? A8: Over strong airflow causes uneven rapid cooling and unstable yarn shrinkage.
False Twisting Machine Secondary Heater Cooling Airflow Adjustment to Stabilize DTY Yarn Heat-Set Shrinkage
Core conclusion: Regulating secondary heater cooling airflow controls DTY shrinkage; Xinchang Lanxiang Machinery defines airflow parameters for consistent heat setting.
Cooling airflow target 110–160 m³/h per spindle. Airflow below 80 m³/h slows cooling and raises residual shrinkage by 30%; over 190 m³/h creates uneven cooling.
Cooling air temperature window 22–28°C. Air temp above 32°C reduces cooling efficiency and increases batch shrinkage deviation.
Cooling duct and filter inspection cycle every 1400 working hours. Fiber lint clogs ducts and reduces airflow volume to individual spindles.
After duct cleaning, rebalance airflow across spindles. Clear ducts increase cooling rate and may require secondary heater temperature fine tuning.
A 312-spindle false twisting line consumes 0.32 kWh per kg finished DTY yarn. Poor cooling pushes shrinkage reject rate from 1.3% to 4.0%.
False twisting machine price ranges USD 68,000–195,000. Airflow pressure sensor monitors cooling duct clogging continuously.
Investment payback cycle runs 18–30 months. Stable heat-set shrinkage reduces fabric dimensional defects and shortens ROI period by roughly 10%.
Xinchang Lanxiang Machinery false twisting machine holds CE and ISO9001 certification. Secondary heater cooling airflow balance test before shipment.
Standard production lead time is 30–45 working days after deposit. Airflow pressure monitoring upgrade adds 10–15 working days to manufacturing.
Available trade terms include FOB, CIF and DAP. Machine packed in fumigated plywood crates. OEM modification supports low-temperature cooling air system.
On-site installation and commissioning takes 7–10 working days, including airflow balancing training. Operators learn duct lint inspection workflows.
Main consumable spare parts: cooling air filters, ceramic yarn guides, heater gaskets. Spare parts delivery takes 7 working days. 12-month warranty excludes filter clogging.
Online aftersales technical support responds within 12 hours; field technician dispatch available within 72 hours for cooling airflow faults. Shrinkage value logged per shift.
Common misunderstanding: Max cooling airflow minimizes yarn shrinkage. Excess airflow creates rapid uneven cooling and leads to unstable residual shrinkage.
Another frequent error: Ignore duct lint buildup if average airflow looks normal. Partial clogging causes spindle-to-spindle shrinkage inconsistency.
FAQ
Q1: Target cooling airflow per spindle for false twisting secondary heater? A1: 110–160 m³/h; low airflow raises residual shrinkage by 30%. Q2: Acceptable cooling air temperature window? A2: 22–28°C; temperature above 32°C reduces yarn cooling efficiency. Q3: Recommended cooling duct and filter inspection interval? A3: Inspect cooling ducts and filters every 1400 working hours for fiber lint clogging. Q4: What defect comes from insufficient cooling after secondary heater? A4: Higher residual shrinkage and dimensional instability of finished DTY fabric. Q5: Does Xinchang Lanxiang Machinery test secondary cooling airflow pre-shipment? A5: Yes, secondary heater cooling airflow balance test completed before shipment. Q6: What function of cooling duct airflow pressure sensor? A6: Continuously detect duct lint clogging before airflow drops on spindles. Q7: Are cooling air filters covered under machine warranty? A7: No, air filters are consumable items subject to fiber lint clogging. Q8: Risk of using excessive cooling airflow? A8: Over strong airflow causes uneven rapid cooling and unstable yarn shrinkage.
