Views: 0 Author: Site Editor Publish Time: 2026-05-02 Origin: Site
1. What is a Hot Melt Adhesive Hose
A hot melt adhesive hose, also known as a heated glue delivery hose or heating hose, is a special matching pipeline for hot melt adhesive machines. It connects the main body of the adhesive machine with the spray gun or coating head, and its core functions are high-temperature transportation and constant temperature insulation. It ensures that hot melt adhesive will not cool, carbonize or block during delivery, guaranteeing stable adhesive application.
2. Core Structure (Five-Layer Composite Design)
1. Inner Tube Layer (Core Component)
- Material: High-purity Teflon (PTFE) tube
- Function: Featuring high temperature resistance (-80℃~250℃), anti-adhesion, low friction and chemical corrosion resistance, it greatly reduces adhesive carbonization and blockage.
2. Heating Layer
- Material: Nickel-chromium alloy heating wire + K-type/PT100 temperature control wire
- Function: Evenly wound around the inner tube, achieving precise temperature control (120℃~230℃). The entire hose is heated uniformly, avoiding local overheating or cold spots.
3. Insulation Layer
- Material: Imported high-temperature resistant insulation cotton/flame-retardant foam layer
- Function: Provides efficient heat insulation and reduces heat loss, lowering energy consumption and keeping the surface temperature low to prevent scalding.
4. Reinforcement Layer
- Material: Stainless steel braid/fiber braid
- Function: Improves pressure resistance (3~10MPa) and tensile strength, with good bending resistance and aging resistance.
5. Outer Protective Layer
- Material: Wear-resistant and flame-retardant rubber/PU coating
- Function: Resists wear and oil stains, anti-aging, suitable for complex industrial environments.
3. Key Characteristics (Six Core Advantages)
1. Precise Constant Temperature (Adjustable 120℃~230℃)
Suitable for various hot melt adhesives such as EVA, PA, PES and PUR, with temperature fluctuation ≤±2℃, eliminating adhesive condensation or degradation.
2. Anti-Adhesion and Anti-Clogging (PTFE Inner Tube)
The inner wall is non-stick to adhesive and not easy to coke and carbonize, requiring frequent cleaning during long-term use and reducing downtime maintenance costs.
3. High Flexibility and Bending Resistance
The minimum bending radius is ≤20cm, adapting to the dynamic movement of equipment without cracking or wire breakage after repeated bending.
4. High-Pressure Delivery (Pressure Resistance 3~10MPa)
The reinforcement layer design meets industrial high-pressure adhesive delivery requirements, with no leakage and low risk of pipe bursting.
5. Safety and Durability (Flame Retardant + Insulation)
The heating layer has a high insulation grade, and the outer protective layer is flame-retardant, featuring leakage prevention, scalding prevention and aging resistance for a long service life.
6. Customized Specifications (Suitable for Multiple Scenarios)
Inner diameter: 6/8/13/16mm; Length: 1.2~4.8m (customizable); Voltage: 220V/110V.
4. Main Application Fields
1. Packaging Industry: Carton sealing, box forming, express bag gluing (EVA adhesive, 120℃~180℃).
2. Furniture and Woodworking: Plate edge sealing, wooden door assembly, mattress bonding (PUR adhesive, 180℃~220℃).
3. Automobile Manufacturing: Interior roof, carpet, lamp sealing (PA/PES adhesive, 180℃~230℃).
4. Electronics Industry: Wire harness fixing, battery packaging, component bonding (low-temperature EVA adhesive, 120℃~150℃).
5. Sanitary Products: Structural adhesive delivery for diapers and sanitary napkins (EVA adhesive, 150℃~180℃).
6. Construction Industry: Insulation board composite, waterproof roll gluing (high-temperature PUR adhesive, 200℃~230℃).
