一．Application & Production Capacity FAQs

Q1: What footwear and crafts is this 8-station heel shaping machine suitable for?

A1: It is specially developed for hot & cold shaping of TPU heel counters of men’s, women’s and sports shoes. Equipped with 4 heating stations + 4 cooling stations integrated layout, it can process 8 pairs of shoes at the same time by one single operator, greatly lifting mass production efficiency.

Q2: What is the 8-hour stable output of ACH-720B-4C4H?

A2:Standard continuous production capacity reaches 2200 pairs per 8-hour shift, nearly double the output of 2C2H dual-station heel machines.

二. Core Mold Structure Advantages FAQs

Q3: What is the unique design of cold mold outer frame?

A3:It adopts one-piece integrated airbag cold outer mold:

Q4: What material is used for hot outer mold? What are its strengths?

A4:The hot mold is made of industrial environmental silicone film:

三. Clamping & Positioning System FAQs

Q5: What adjustment functions do the machine’s clamping jaws have?

A5:Independent full-range multi-directional claw adjustment system, supporting large-scale fine-tuning in all directions. Operators adjust clamping tension and position according to different heel heights and radian, making uppers closely attach to shoe lasts and eliminate wrinkling & folding defects at heel edges.

Q6: What’s the function of three-axis red LED positioning lamp?

A6:Wide-angle adjustable energy-saving positioning lamp with real-time sensor monitoring, accurately locks heel placement position for all shoe types, avoids offset shaping caused by manual misoperation and ensures consistent finished heel appearance.

Q7: What material are all adjustable fixtures made of?

A7:The whole set of clamps and adjusting components adopt stainless steel + aluminum alloy composite material, high hardness, rust-proof and abrasion resistant for long-term workshop continuous operation.

四.Refrigeration System FAQs

Q8: What cooling configuration does this machine adopt?

A8:Equipped with imported energy-saving environmental compressor matched with eco-friendly refrigerant:

Q9: Why design 30° adjustable tilt angle for cold mold base?

A9: The cold mold tilt angle can be adjusted freely based on shoe last shape and workers’ operating habits, easier to load and unload shoe uppers, effectively prevent uppers slipping during cold pressing, reduce long-hour labor fatigue.

五.PLC Touch Screen Control FAQs

Q10: Can each of the 8 stations set parameters independently?

A10: Yes, PLC touch screen centralized control supports separate digital setting of heating temperature, cold holding time and function switches for every single hot/cold station. Parameters can be customized according to leather, fabric and hot melt materials of different shoes.

Q11: Does the touch screen support bilingual display?

A11: Standard Chinese & English bilingual switching interface, convenient for overseas factory operation and foreign staff training.

六.Complete Standard Technical Parameter FAQs

Q12: What are the full machine specifications of ACH-720B-4C4H?

A12:

• Model: ACH-720B-4C4H Four Cold Four Hot Heel Molding Machine
• Power supply: AC220V / 50Hz Single Phase
• Total power: 3.5KW
• 8-hour production capacity: 2200 pairs
• Max heating temperature: 200℃
• Temperature control precision: ±2℃
• Refrigerator power: 3/8P
• Max working air pressure: 6-8KGS
• Overall machine dimension: 224610402100mm
• Export package dimension: 234611402200mm
• Net weight: 560KG; Gross weight: 660KG

七.Standard Startup & Production Operation Flow FAQs

Q13: What is the correct startup operation sequence?

A13:

• Connect single-phase power supply and air compressor with pressure stabilized at 5-6kg/cm², check lubricant of air three-point unit;
• Turn on control panel power, refrigeration compressor and all hot mold switches;
• Set independent temperature and time parameters for each station on touch screen;
• Adjust cold mold tilt angle, claw position and positioning lamp angle according to shoe last;
• Wait hot molds reach preset temperature, place uppers on hot stations for heating & softening;
• Transfer softened uppers to cold molds, step foot switch to execute airbag cold shaping;
• Automatic mold release after timing ends, take finished shoes out.

Q14: How to handle emergency abnormal conditions during operation?

A14:Each station is equipped with independent emergency stop button. Press the corresponding emergency stop instantly if material jamming, hand pinching risk or equipment abnormal occurs, all pressing cylinders will retract automatically to avoid injury and machine damage.

八. Troubleshooting Common Failures FAQs

Q15: Thick frost accumulates on cold mold heads after long standby, how to solve?

A15: Shut down refrigeration compressor completely and wait frost melts naturally; do not restart compressor within 5 minutes after shutdown to prevent internal liquid impact damage.

Q16: Unstable airbag pressure during shaping, what to check first?

A16: 1. Check if air compressor output pressure meets 6-8KGS standard;

2. Inspect all air pipe joints for air leakage;

3. Replace aging airbag if partial air leakage appears.

九. Regular Daily & Periodic Maintenance FAQs

Q17: What scheduled maintenance items are required for stable long-term operation?

A17:

• Daily: Wipe glue residue on airbags and silicone hot molds, drain water from air three-point combination unit, clean refrigeration radiator filter screen, listen for abnormal compressor noise;
• Weekly: Add lubricating grease to all clamping claw guide rails and cylinder moving parts, inspect air pipeline tightness;
• Monthly: Calibrate temperature sensor accuracy, check airbags for tiny cracks, clean internal dust of electrical control box.

十. Drawings, Spare Parts & After-sales Service FAQs

Q18: What supporting documents and drawings will be delivered with the machine?

A18:Complete English operation manual, full spare parts list, machine 2D/3D assembly drawings, electrical schematic, refrigeration circuit and air circuit diagrams are supplied. Electronic PDF files can be sent to customers in advance by email before shipment.

Q19: What components are included in the spare parts catalog?

A19:It contains airbags, silicone hot molds, heating tubes, refrigeration compressor accessories, cylinders, solenoid valves, touch screen sensors, clamping adjustment screws and all standard replacement parts for each station.

Q20: What is the machine warranty policy and technical support?

A20:12-month whole machine warranty (consumables like airbags, silicone molds, heating tubes excluded). We provide lifelong supply of all spare parts at factory cost price, plus 24-hour online remote video debugging and operator training. Overseas on-site technical service can be arranged if needed (customer bears engineer travel & accommodation expenses).

十一. Customization FAQs

Q21: Can molds, fixtures and station modules be customized according to exclusive shoe samples?

A21:Yes, we support ODM customization. Silicone hot molds, cold inner molds and Teflon clamping tighteners can be tailor-made based on customer shoe lasts and special heel radian requirements.