When sourcing hook-and-loop fastener hot melt coating lines, many purchasers only compare price and maximum speed while ignoring core details such as effective coating width, tension stability, glue supply synchronization and after-sales warranty. Improper selection easily leads to uneven glue layers, material wrinkling, glue carbonization and frequent downtime. Ruian Jundingda Machinery Co., Ltd. sorts out a full checklist from coating specification, hardware configuration, production adaptability, delivery and after-sales, taking the XD-TB300mm hook-and-loop fastener coating system (matched with XD-Z100L hot melt adhesive machine) as the reference case for hook-and-loop manufacturers.
The first point to verify is the effective coating width and adjustable glue gun range. The XD-TB300mm unit comes with a 320mm high-temperature alloy coating head, with 300mm effective coating width; its supporting glue gun supports 0–300mm adjustment, which can produce both narrow-width and standard hook-and-loop fasteners. Buyers must distinguish between total die head width and actual usable coating width to avoid mismatching product specifications.
Coating weight accuracy directly determines finished product quality and glue cost. Confirm the adjustable gsm range and synchronous control logic. This set of equipment supports 10–30g/㎡ adjustable coating weight, controlled by PLC synchronous glue pump, which keeps consistent glue output and low deviation for different hook-and-loop thicknesses. Meanwhile, 6-channel PLC intelligent constant temperature control prevents hot melt adhesive carbonization, glue blocking and uneven discharging, a common failure point for low-end coating machines.
Tension control decides whether the hook-and-loop substrate runs flat at high speed. The XD-TB300mm coating host is equipped with 3 sets of independent tension control systems, dual unwinding and dual winding structure, plus steel-silicone composite compound rollers. The maximum unwinding diameter reaches 600mm, which fits large-diameter raw material rolls and reduces frequent roll changes.
Many suppliers mark high maximum speed, yet the line cannot run stably under full load. It is necessary to confirm whether the high-speed state supports continuous mass production. The XD-TB300mm’s max design speed is 50m/min, with independent cooling system and frequency conversion synchronous control, realizing stable operation without web deviation, wrinkles or broken coating during 24-hour continuous production. Transition wheels and auxiliary accessories can be added according to actual production processes, which is another item for confirmation before ordering.
Do not separate the coating host and hot melt adhesive machine for quotation comparison; the matching performance of the whole set is critical. The matched XD-Z100L hot melt machine has a 100L glue tank, 72kg/h max glue supply capacity and 90kg/h melting speed, equipped with a 20CC gear pump and Teco inverter. It is specially configured for hook-and-loop hot melt coating process and avoids the risk of glue supply lagging behind line speed.
Check the die head material and hardness for long-term production. The 60° high-temperature alloy coating head has good high-temperature resistance and wear resistance. Daily maintenance only requires regular cleaning and drying, without complicated disassembly, which lowers long-term maintenance labor cost.
Confirm the control method and operation difficulty for your on-site workers. This line adopts visualized PLC human-machine interface and standardized frequency conversion adjustment. Complete operation training, parameter setting guidance and basic troubleshooting tutorials are included, helping new operators get independent operation quickly. For buyers with diversified production, confirm whether the equipment can adapt to multiple application scenarios such as medical protection, home textiles, automotive and non-woven composite hook-and-loop fasteners.
Check whether the quoted price is tax-inclusive and clarify the VAT invoice. The XD-TB300mm complete set is quoted at 98,000 RMB including 13% VAT. Clarify payment terms and production cycle in advance; the standard cycle is 10–15 working days after payment confirmation.
Warranty and technical support are core risk prevention points for industrial equipment. Jundingda provides one-year full machine warranty for non-artificial damage, and extended quality guarantee for core parts including PLC, inverter and heating system. The service package covers 24/7 online technical guidance, remote debugging, on-site installation & commissioning, stocked standard wearing parts and long-term regular inspection & parameter calibration service.
Before signing the order, verify the manufacturer’s R&D capacity, certification and mass delivery record. Ruian Jundingda Machinery Co., Ltd. was founded in 2011. It holds ISO and CE certificates, occupies about 80% market share in domestic filtration and purification hot melt equipment sector, and delivers more than 20 composite lines to filter material customers every year. Stable mass production capacity and verified market application cases can reduce procurement risks.
Ruian Jundingda Machinery Co., Ltd. focuses on R&D and manufacturing of hot melt coating and lamination equipment. It owns an independent factory, provides standard hook-and-loop coating lines and personalized modification service.
Official website: https://www.jddmachinery.com/
