Ultra-High-Pressure Thermal Hose for Automotive Sealant Application

Introduction

An ultra-high-pressure thermal hose for automotive sealant application transfers temperature-sensitive adhesives, mastics and sealing compounds from the pumping system to the robotic or manual dispensing head.

Automotive adhesives are often highly viscous and require both temperature control and high transfer pressure. If the material cools inside the hose, viscosity may rise, pressure may fluctuate and the final adhesive bead may become inconsistent.

Shenzhen Jingcheng High-tech manufactures customized automotive heated hose assemblies for domestic and imported adhesive equipment, including configurations associated with SCA, ATN and GRACO systems.

Growing Use of Adhesives in Automotive Manufacturing

Automotive manufacturers increasingly use adhesives and sealants for:

• Structural body bonding

• Seam sealing

• Windshield installation

• Roof bonding

• Door and panel assembly

• Battery pack bonding

• Underbody sealing

• Sound insulation

• Robotic mastic application

• Electric vehicle production

These applications require accurate and repeatable material delivery.

The hose must maintain a stable temperature while withstanding the high pressure required to move thick adhesives through pumps, valves and dispensing nozzles.

Why Temperature Control Matters

Temperature directly affects adhesive viscosity.

If the adhesive becomes too cold, the system may experience:

• Reduced flow

• Increased pump load

• Pressure fluctuation

• Delayed valve response

• Uneven adhesive bead

• Material accumulation

• Hose blockage

• Higher energy consumption

• Increased cleaning time

• Production downtime

A heated hose helps maintain the adhesive within its required processing range between the pump and application head.

Ultra-High-Pressure Construction

The product series is designed for demanding automotive adhesive systems.

The listed 3/8-inch specification has a reference working pressure of:

• 475 bar

• 6,888 psi

Its reference burst pressure is:

• 1,900 bar

• 27,550 psi

The final allowable pressure depends on temperature, fittings, crimping, hose movement and complete assembly design.

Key Features

Temperature Resistance up to 200°C

The standard automotive hose supports operating temperatures up to 200°C.

High Working Pressure

The catalog includes reference working pressures from 275 bar to 475 bar, depending on hose diameter.

Uniform Heating Elements

Uniform heating helps reduce localized cold sections and stabilize adhesive viscosity.

Thermal Insulation

The insulation structure reduces heat loss between the pump and dispensing valve.

Compatibility With Automotive Dispensing Systems

The hose can be customized for configurations associated with:

• SCA

• ATN

• GRACO

• Robotic adhesive systems

• Metering and mixing equipment

• High-pressure sealant pumps

• Domestic dispensing equipment

Custom Sensor and Electrical Plug

Available customizations include:

• PT100

• PT1000

• J-type thermocouple

• K-type thermocouple

• Aviation connectors

• Custom pin arrangements

• Equipment-specific voltage and power

Typical Applications

• Automotive structural adhesive dispensing

• Body seam sealing

• Battery pack adhesive transfer

• Windshield bonding

• Underbody sealant application

• Robotic glue dispensing

• Vehicle assembly lines

• Body-in-white production

• High-viscosity mastic transfer

• Automotive coating systems

• Electric vehicle battery manufacturing

• Replacement hoses for adhesive pumps

Technical Specification Options

Reference Product Data

These values are catalog reference figures. Final operating limits must be verified for the complete hose assembly.

Benefits for Automotive Production Lines

A correctly matched heated hose can help:

• Maintain stable adhesive viscosity

• Improve dispensing accuracy

• Reduce cold spots

• Lower pressure fluctuation

• Improve robotic repeatability

• Reduce material blockage

• Support high-pressure pumping

• Reduce production interruptions

• Improve compatibility with existing equipment

• Reduce replacement errors

Information Required for Selection

Please provide:

• Adhesive or sealant type

• Material operating temperature

• Normal working pressure

• Maximum pressure

• Required flow rate

• Hose length

• Inner diameter

• Voltage

• Heating power

• Sensor type

• Pump-side fitting

• Dispensing-side fitting

• Electrical plug

• Pin arrangement

• Equipment brand and model

• Original hose sample or drawing

Why Choose Shenzhen Jingcheng?

High-Pressure Hose Manufacturing Capability

We manufacture reinforced heated hoses for demanding adhesive and sealant transfer systems.

Customized Equipment Matching

The hose can be produced according to equipment models, drawings, original samples and connector dimensions.

Factory-Direct Supply

Direct production supports shorter technical communication and competitive pricing.

Short Lead Time

We support maintenance replacement, equipment projects and OEM requirements.

Sample Support

Prototype hoses can be manufactured for equipment compatibility testing.