1. What is a hot melt glue machine?

A hot melt glue machine is an environmentally friendly solvent-free bonding device that melts solid hot melt adhesive into liquid state through electric heating. As a professional manufacturer, YONGTAI MACHINE designs and produces high-quality hot melt glue machines that transport molten glue via gear pump or air pressure to spray guns and nozzles for dot coating, bead coating and spray coating. It features instant cooling curing, stable bonding strength and high working efficiency, widely matching automatic industrial production lines.

2. What types of hot melt adhesive can this machine support?

This hot melt glue machine produced by YONGTAI MACHINE, a reliable manufacturer with years of experience, is compatible with most mainstream industrial hot melt adhesives, including EVA hot melt glue, PO polyolefin glue, PES polyester glue, PUR reactive hot melt glue and pressure sensitive adhesive. We, as the direct manufacturer, can recommend the most suitable glue type and working parameters according to your bonding materials, production process and industry application demands.

3. What is the difference between hot melt glue machine and cold glue machine?

Hot melt glue machine adopts solvent-free hot melting technology with no peculiar smell, fast curing speed and no extra drying process required, which perfectly adapts to high-speed automated production. YONGTAI MACHINE, a professional manufacturer, focuses on optimizing hot melt glue machine performance to meet modern production needs. Cold glue machines use water-based or chemical solvent glue, featuring slow drying speed, obvious odor, low bonding efficiency and poor weather resistance, not suitable for modern mass production.

4. What kinds of materials can the hot melt glue machine bond firmly?

It can form stable and firm bonding on various common industrial materials such as paper board, carton, gift box, non-woven fabric, sponge, leather, textile fabric, plastic parts, solid wood board and multiple composite materials. YONGTAI MACHINE, as a professional manufacturer, ensures that our hot melt glue machines meet the bonding needs of packaging, automotive, textile and electronic industries with strong adaptability and reliable performance.

5. How can customers choose a suitable hot melt glue machine model?

You need to confirm four key factors to select the right model: production line running speed, required glue output per minute, coating ways like dot, bead or spray, and your actual bonding materials and application industry. As a professional manufacturer, YONGTAI MACHINE provides customized suggestions for each customer, recommending small capacity models for small-batch production and multi-pump, multi-nozzle models for large-scale assembly line work.

6. What is the difference between manual and automatic hot melt glue machine?

Manual hot melt glue machine is designed for single workstation and small-batch production, allowing handheld flexible gluing and quick product switching. Automatic models produced by YONGTAI MACHINE, a professional manufacturer, can be perfectly connected with assembly lines, manipulators and other automation equipment to realize continuous unmanned operation, greatly saving labor cost and improving overall production capacity for our global customers.

7. What tank capacities and configurations do you provide?

YONGTAI MACHINE, a direct manufacturer, supplies standard hot melt glue machine with tank capacities of 2L, 5L, 10L, 20L and 30L for different production demands. It can be equipped with single pump, double pump and multi-pump structures, and we, as the professional manufacturer, also support non-standard customization of large capacity, special voltage and multi-nozzle layout according to customer’s factory site conditions and production requirements.

8. What is the standard working temperature range for the machine?

The recommended temperature is 150℃ to 180℃ for ordinary EVA hot melt glue, and 120℃ to 160℃ for PUR reactive hot melt glue. YONGTAI MACHINE, as a professional manufacturer, optimizes the heating system of our hot melt glue machines to ensure keeping a reasonable constant temperature, which can effectively prevent glue carbonization and blackening, avoid poor fluidity of molten glue, and ensure uniform glue output and stable bonding effect all the time.

9. What precautions should we take for the first use of the new machine?

When using the new machine for the first time, you must power on to preheat the equipment fully, and never start the glue pump until the solid glue is completely melted. As a responsible manufacturer, YONGTAI MACHINE reminds you not to set an ultra-high temperature at the beginning, and avoid forced operation of the pump with unmelted glue to protect the heating system and internal pump parts from damage, ensuring long service life of the machine.

10. Why does the hot melt glue machine have no glue output suddenly?

The main reasons include the actual temperature not reaching the set melting standard, nozzle or internal filter being blocked by carbonized glue, insufficient glue in the tank, gear pump aging and failure, or constant temperature heating pipeline losing heat preservation effect. YONGTAI MACHINE, as a professional manufacturer, provides detailed operation manuals for each machine, guiding you to check and eliminate these problems one by one easily.

11. Why is the glue output unstable with big and small flow changes?

Unstable glue output is usually caused by fluctuating working temperature, unstable air pressure supply, blocked nozzle hole, accumulated carbon on the filter screen or long-term wear of the gear pump core. As a professional manufacturer, YONGTAI MACHINE suggests you clean the nozzle and filter regularly, calibrate temperature and air pressure parameters, and inspect pump parts to restore stable glue supply, and we also provide original spare parts for replacement.

12. How to effectively solve the problem of machine glue leakage and flowing glue?

Glue leakage and flowing glue are mainly caused by aging and damaged sealing parts, incorrect installation position of nozzles, excessive working pressure or too high temperature leading to overly thin glue liquid. YONGTAI MACHINE, as a direct manufacturer, provides high-quality original sealing accessories, and you only need to replace them, reinstall the nozzle accurately, and properly lower the pressure and temperature to solve the problem completely.

13. How to prevent hot melt glue from carbonization and blackening easily?

To avoid glue carbonization, do not keep the machine running at high temperature with empty tank for a long time, maintain a stable and reasonable working temperature during production, clean up residual old glue and carbon deposits in the tank regularly, and choose high-quality qualified hot melt adhesive. As a professional manufacturer, YONGTAI MACHINE designs our hot melt glue machines with advanced temperature control system to reduce glue carbonization effectively.

14. Which industries are hot melt glue machines widely applied in?

YONGTAI MACHINE, a professional manufacturer of hot melt glue machines, provides products widely used in carton packaging, luxury gift box making, courier bag sealing, automotive interior parts bonding, mattress and home textile compounding, garment lamination, electronic components fixing, filter element processing, non-woven hygiene materials, label sticking and wood furniture manufacturing industries.

15. Do you support customized non-standard hot melt glue machines?

Yes, YONGTAI MACHINE, as a professional manufacturer with strong R&D and production capacity, provides full non-standard customization services for global customers. We can customize tank capacity, multi-group nozzle arrangement, automatic lifting structure, production line docking design, PLC intelligent control system and constant temperature heat preservation pipeline, to meet your special production and site layout requirements.

16. What about your warranty policy and after-sales service?

YONGTAI MACHINE, a reliable manufacturer, provides formal whole-machine warranty service for all hot melt glue machines, and supplies original wearing parts such as nozzles, filters, heating tubes and sealing accessories for long-term purchase. We also provide detailed user manuals, operation video tutorials and professional technical consultation for all customers, ensuring worry-free use after purchase.

17. Can you provide installation guidance and technical training?

As a professional manufacturer, YONGTAI MACHINE offers free one-on-one remote installation guidance and daily operation training online all the time. For large order projects and factory assembly line overall matching, we can negotiate on-site installation, equipment debugging and professional operation training for your workers, ensuring smooth production and maximum efficiency of our hot melt glue machines.