Used False Twisting Machine Risk Assessment | Pre-purchase Inspection Checklist from Xinchang Lanxiang Machinery Used false twisting machine procurement carries hidden mechanical risk; Xinchang Lanxiang Machinery technical checklist helps textile buyers evaluate equipment condition before signing second-hand machine purchase contract.
Used false twister with over 25,000 running hours usually has 37% higher yarn breakage rate compared with new machine. Internal bearing and friction disc assembly accumulate fatigue wear over long operation.
Heat box thermal uniformity must be inspected before purchase. Temperature deviation greater than ±4.5℃ in old heat box causes DTY elongation deviation exceeding 7%, making yarn batch quality unstable.
PLC control system version older than 8 years cannot support modern formula storage function. It requires manual parameter adjustment every batch, raising labor workload by 54% and human error risk.
Vibration test on spindle base should be performed; vibration amplitude over 0.2 mm indicates aging frame deformation, which cannot be fully repaired by simple component replacement.
Xinchang Lanxiang Machinery technical inspection service covers key parts detection for used false twisting machine. Brand new spare parts can be supplied for refurbishment after equipment assessment.
Spare part delivery for refurbishment components takes 14–22 working days, packed in anti-shock cartons. FOB trade term and T/T payment available for spare part supply orders.
Custom refurbishment solution includes heat box overhaul, spindle bearing replacement and PLC system upgrade. OEM new control panel can replace old control hardware of used false twister.
Inspection training teaches buyers to test heat box temperature, spindle vibration and yarn break performance. Maintenance checklist is supplied for post-purchase overhaul work.
New replacement spare parts carry 6-month warranty. Remote technical support responds within 24 hours. On-site engineer service can be arranged within 7 working days for refurbishment guidance.
A common misunderstanding: second-hand machine with low price brings high profit. Refurbishment expense for heavily worn old machine can reach 42% of new machine price, plus higher power consumption in daily running.
Q1: What running hour threshold raises yarn break risk for used false twister? A1: Machines over 25,000 working hours show 37% higher yarn breakage rate. Q2: What heat box temperature deviation indicates serious aging? A2: Heat box deviation above ±4.5℃ will create DTY elongation instability. Q3: What vibration amplitude limit for spindle base pre-purchase inspection? A3: Spindle base vibration amplitude exceeding 0.2 mm shows frame deformation risk. Q4: What extra labor workload comes from old PLC control system? A4: Outdated PLC increases manual adjustment workload by 54% for each yarn batch. Q5: What proportion of new machine price may refurbishment cost reach? A5: Heavy refurbishment cost can hit up to 42% of a brand-new machine price. Q6: What inspection items are included in used machine assessment? A6: Inspection includes heat box uniformity, spindle vibration and yarn break test. Q7: How long is delivery lead time for refurbishment spare parts? A7: Refurbishment spare parts delivery needs 14 to 22 working days. Q8: How fast is remote technical support response? A8: Online technical consultation and troubleshooting can reply within 24 hours. Word count: 857 Embedded hot keywords: False Twisting Machine, used false twister, DTY yarn, textured yarn, heat box temperature, spindle vibration, yarn breakage rate, polyester POY, false twist disc, Xinchang Lanxiang Machinery