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Soren20061009
JINGCHENG
3917290000 3904610000 3917390000
In automotive manufacturing, adhesive and sealant dispensing systems are expected to operate consistently across thousands of production cycles.
The quality of the final application depends on several connected components.
The pump must deliver material at the required pressure. The temperature-control system must maintain suitable processing conditions. The applicator must dispense material according to the programmed production sequence.
Between these components, the high-pressure hose performs an essential function.
It transfers the material while remaining compatible with the pressure, temperature and mechanical conditions of the dispensing system.
A hose that appears correct on paper may still create difficulties during production if its fittings, electrical configuration or installation geometry are not properly matched.
For this reason, high-pressure heated hose selection should be included in the commissioning and quality verification process for automotive dispensing equipment.
Jingcheng's automotive production line hose is developed for high-pressure industrial fluid applications, including automotive adhesive, sealant and coating systems.
The product catalog identifies applications involving domestic and imported equipment, including systems associated with SCA, ATN and GRACO.
Key catalog specifications include:
Maximum temperature capability of approximately 200°C
Working pressure up to 475 bar, depending on hose diameter
Multiple sizes from 3/8" to 1"
Heating and insulation construction
Custom hose lengths
Customized pressure connections
OEM hose assembly development
These characteristics make the product relevant to demanding automotive material-delivery equipment.
Automotive production systems normally follow defined operating parameters.
The hose between a pump and applicator must support those parameters without introducing unacceptable mechanical or thermal limitations.
Potential problems during equipment commissioning can include:
Leakage at a hose connection
Incorrect fitting dimensions
Insufficient installation clearance
Incompatible temperature-control components
Unexpected material delivery behavior
Mechanical interference with surrounding equipment
These problems are easier to address before the system enters normal production.
For this reason, the hose assembly should be reviewed as part of the complete dispensing cell rather than approved solely according to its nominal diameter.
At several hundred bar, the hose body is only one part of the pressure boundary.
A complete assembly includes the flexible tube, reinforcement and pressure connections.
Depending on the design, these may include:
End fittings
Ferrules
Crimped connections
Sealing interfaces
Adapters
Machine ports
Each connection must be suitable for the pressure and material being handled.
The complete assembly should therefore be specified and verified as a unit.
A high working-pressure rating for the hose body does not automatically establish the pressure capability of every possible fitting configuration.
The catalog provides the following nominal sizes and working-pressure ratings.
Nominal size | Working pressure | Working pressure (psi) | Minimum bending radius |
|---|---|---|---|
3/8" | 475 bar | 6,888 psi | 110 mm |
1/2" | 450 bar | 6,525 psi | 150 mm |
5/8" | 400 bar | 5,800 psi | 175 mm |
3/4" | 300 bar | 4,350 psi | 200 mm |
1" | 275 bar | 3,988 psi | 240 mm |
These catalog ratings demonstrate the substantial pressure capability of the hose family.
However, the final allowable working pressure must be confirmed for the assembled configuration at its actual operating temperature.
The highest burst-pressure rating should never be used as the continuous operating-pressure limit.
High-pressure adhesive and sealant systems may experience different operating conditions during:
Pump startup
Material delivery
Applicator activation
Valve closure
Production interruption
Equipment shutdown
The pressure at one operating condition may differ from the pressure during another.
An equipment manufacturer should therefore identify the normal working pressure and any expected transient conditions.
The hose assembly should then be selected according to the complete operating envelope.
Where required, an agreed pressure or leak test can be included in the acceptance procedure.
Before a new hose is installed, the technician should confirm that the mechanical connections match the equipment.
Important parameters include:
Thread type
Thread size
Sealing method
Fitting material
Connection angle
Required assembly length
A hose should not need to be twisted excessively to align with the equipment.
It should also not be stretched tightly between connection points.
Correct mechanical installation helps avoid unnecessary loads on fittings and machine ports.
The catalog specifies a maximum temperature capability of approximately:
200°C
Automotive adhesives and sealants can have different temperature requirements.
The correct temperature depends on the material formulation and dispensing process.
For materials whose viscosity varies with temperature, a stable thermal condition can support more predictable delivery.
The heated hose therefore forms part of the broader material-conditioning system.
The machine's specified operating temperature should be confirmed before selecting the hose heating configuration.
The product catalog describes uniformly arranged heating elements intended to reduce temperature differences along the hose.
This arrangement is useful where the material must remain within a defined processing temperature range.
However, temperature behavior depends on the complete assembly.
Important factors include:
Hose length
Inner diameter
Heating power
Insulation
Ambient conditions
Material flow
These variables should be coordinated during OEM development.
A hose with the correct temperature rating but an unsuitable heating specification may not perform as required in the actual machine.
Where the hose uses electrical heating, its electrical interfaces must match the machine controller.
These can include:
Rated voltage
Heating power
Temperature sensor
Electrical connector
Connector pin arrangement
Cable length
The same-looking connector may not always use the same internal wiring.
For replacement projects, connector identity and wiring information should therefore be confirmed before production.
The fitting is one of the most important components in a high-pressure hose assembly.
Automotive dispensing systems may use different connection standards according to the pump, metering system and applicator.
Selecting the correct thread alone is not sufficient.
The sealing geometry must also be appropriate.
A fitting with an incorrect seat or sealing method may not form a suitable connection even when the thread appears to match.
For this reason, customers are encouraged to provide technical drawings or detailed photographs of both hose ends.
An automotive production cell may contain:
Material pumps
Metering units
Dispensing valves
Application robots
Structural frames
Electrical and pneumatic equipment
The hose must be routed around these components while respecting its bending radius.
Potential mechanical problems include:
Twisting during installation
Contact with sharp metal edges
Unsupported hose weight
Excessive bending near fittings
Interference with moving equipment
A suitable routing design can help reduce unnecessary mechanical stress.
For hoses installed on moving machinery, the actual motion cycle must also be reviewed.
Before a new material-delivery system begins normal production, the equipment manufacturer should verify that the installed hose meets the approved specification.
Depending on the system, commissioning may include:
Confirmation of mechanical connections
Verification of temperature-control compatibility
Appropriate leak checks
Controlled pressure increase
Inspection of hose routing
Confirmation of stable material delivery
The exact procedure should be determined by the equipment manufacturer and the applicable safety requirements.
The objective is to identify installation or specification problems before the machine enters repetitive production.
A damaged or aging hose may require replacement during scheduled maintenance.
The new assembly should match the original design requirements.
Important information includes:
Original hose size
Working pressure
Working temperature
Hose length
End fittings
Heating specifications
Sensor and connector details
An original sample or hose drawing can help simplify the replacement process.
The Jingcheng catalog references applications involving equipment associated with SCA, ATN and GRACO.
These platforms may use different pressure connections and electrical configurations.
Therefore, compatibility should be evaluated according to the specific equipment model and original hose specification.
A manufacturer name alone does not establish that a hose is a certified or direct-fit replacement for every machine from that supplier.
For accurate matching, customers should provide the machine model, hose photographs and available technical parameters.
Automotive equipment manufacturers often benefit from defining repeatable component specifications.
A standardized hose part number can include:
Hose diameter + length + pressure + temperature + fittings + electrical configuration + machine application.
Maintaining these records can simplify:
Repeat purchases
Equipment assembly
Technical support
Maintenance
Spare-parts identification
For approved configurations, purchasing teams can use the same technical specification during future orders.
Jingcheng supports custom automotive hose assemblies according to OEM equipment requirements.
Customization may include:
Hose length
Inner diameter
End fitting type
Thread specifications
Fitting orientation
Working temperature
Voltage and heating power
Temperature sensor
Electrical connector
Complete hose assembly
These options support both new equipment development and replacement applications.
To prepare a quotation, please provide:
Machine brand and model
Adhesive, sealant or coating material
Working temperature
Normal working pressure
Maximum operating pressure
Required material flow
Hose length
Inner diameter
Pump-side fitting
Applicator-side fitting
Heating voltage and power
Sensor type
Electrical connector details
For replacement hoses, the original assembly can be used as a reference.
Jingcheng manufactures customized PTFE and heated hose assemblies for industrial equipment.
Our capabilities include:
Factory-direct manufacturing
Custom high-pressure hose solutions
OEM hose development
End fitting customization
Electrical heating integration
Replacement hose matching
Sample support
Short production lead times
Engineering assistance
International export experience
For automotive equipment manufacturers, we focus on matching the complete hose assembly to the machine's operating requirements.
In automotive adhesive and sealant dispensing systems, high-pressure hose reliability is closely connected to machine commissioning and quality control.
A suitable assembly must satisfy more than the required pressure rating.
It must also match the fittings, temperature-control system, electrical interface and available installation space.
Jingcheng's high-pressure heated hose family provides configurations with working pressures up to approximately 475 bar and catalog temperature capability up to 200°C.
For automated automotive production equipment, the correct engineering approach is to verify the complete hose assembly before production and maintain a controlled specification for future replacement.
