How to choose a suitable PUR hot melt glue machine

PUR hot melt adhesive machines have undergone over a decade of development, and their technology is now highly mature. Furthermore, compared to EVA hot melt adhesives and pressure-sensitive adhesives, PUR hot melt adhesives possess stronger adhesion, durability, and melt resistance. When cured EVA adhesives, pressure-sensitive adhesives, and PUR adhesives are placed in oils and solvents (such as methyl ethyl ketone and alcohol), the EVA adhesives and pressure-sensitive adhesives melt, but the PUR hot melt adhesive retains its original cured state. This demonstrates that PUR hot melt adhesives have very stable durability and strong adhesion after curing. With the increasing trend of automation transforming production and setting higher requirements, the application of PUR hot melt adhesive machines in various industries is becoming increasingly diverse. Different industries require different application methods, such as dispensing, spraying, and scraping. Today, we will explain how to choose the appropriate PUR hot melt adhesive machine and glue gun for different industries.

1.Paper packaging, food, and beverage packaging industries: These industries typically use dispensing, and the amount of glue used per product is relatively small. Therefore, our 2kg PUR hot melt glue machine paired with dot or strip glue guns is sufficient. Equipping it with a production line and a three-axis dispensing machine enables fully automated dispensing, resulting in higher production efficiency, making it highly recommended.

2.For industries such as electronics, electrical appliances, and automotive interior parts: these industries still use dispensing methods, but the amount of glue used is relatively larger. Therefore, 5-gallon or 55-gallon PUR hot melt glue machines, as well as 25 kg instant hot melt glue machines with strip or dot glue guns, are suitable choices. The first two industries mostly use three-axis dispensing machines, while automotive interior parts typically use intelligent robotic arms for dispensing.

3.Coating and laminating, metal sheet and wood panel flat lamination industries: These industries use a lot of glue, usually using a 55-gallon PUR hot melt glue machine with a strip glue gun, using roller grooves and rollers to apply glue, and also require large flat lamination machines.

4.For industries like shoe outsoles and sanitary napkins: These industries use spray adhesive, which requires relatively small amounts of glue. A small PUR hot melt glue machine with spiral or fiber spray guns is sufficient.

The choice of glue machine and glue gun depends primarily on the adhesive application process and the amount of glue needed. Of course, some industries may have multiple adhesive application methods; the best approach is to determine which is most suitable for the company's products.

Dongguan Saipu Electromechanical Device Co., Ltd. invites industry partners to upgrade their production lines with advanced Hot Melt Glue Machine solutions.

By choosing Saipu’s Hot Melt adhesive Machine, manufacturers gain a stable, efficient, and future-ready bonding system that supports long-term growth and quality assurance.