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Soren20061028
JINGCHENG
3917290000 3904610000 3917390000
On extruders and line marking machines, molten or highly viscous material must travel from the melt source to the die, nozzle or applicator without losing temperature. Rigid heated pipes cannot follow moving heads or absorb vibration, while an unheated flexible line lets the material cool, thicken and block. JINGCHENG's extruder connection hose is an electrically heated flexible melt hose designed specifically for this duty. It is suitable for the soft material connection on all common types of extrusion equipment, extruders and line marking machines, reaches a maximum service temperature of 250°C and withstands a pressure of 35 MPa at 250°C. The product has been in long-term, stable supply to a number of well-known domestic extruder manufacturers.
No freezing of the melt: polymer melts and marking materials solidify quickly when heat is lost
Stable viscosity: a temperature drop along the line causes uneven output at the die or nozzle
Pressure at full temperature: extrusion pressure must be held while the hose runs hot
Flexibility: moving heads, adjustable modules and vibrating frames need a soft connection rather than a rigid pipe
The JINGCHENG extruder hose meets all four needs in one flexible, pressure-rated, actively heated line.
Heating elements are braided evenly around the hose, spreading heat along and around the bore so that inner-wall temperature differences are minimized and the melt exits at a consistent temperature.
Highly efficient insulation surrounds the heating layer. The materials are chosen with the outer surface temperature in mind, reducing heat loss and making the hose safer to work near.
The hose can be equipped with a Type J or Type K thermocouple, Ni120, PT100 or PT1000 sensor and with your machine's connector and pin layout, so it can be controlled as an additional heating zone of the extruder.
Maximum service temperature up to 250°C
35 MPa pressure capacity at 250°C
Even inner-wall temperature from uniformly braided heating elements
Energy-efficient insulation designed around surface temperature
Flexible soft connection between melt pumps, filters, dies and applicators
Five catalog sizes from 3/8" to 1" ID, other sizes and lengths to order
Field-proven supply to multiple well-known domestic extruder manufacturers
Plastic extruders: heated melt connection between melt pump, screen changer and die
Extrusion equipment: flexible heated transfer between machine modules
Line marking machines: heated delivery of marking material from the melter to the applicator
OEM machine building: heated connection hoses made to the builder's electrical and fitting standard
Inner Diameter (inch) | Outer Diameter (mm ±0.2) | Working Pressure (bar) | Working Pressure (psi) | Burst Pressure (bar) | Burst Pressure (psi) | Min. Bend Radius (mm) |
|---|---|---|---|---|---|---|
3/8" | 15.5 | 110 | 1595 | 440 | 6380 | 20 |
1/2" | 19 | 88 | 1269 | 350 | 5075 | 25 |
5/8" | 22.7 | 70 | 1015 | 280 | 4060 | 30 |
3/4" | 27 | 65 | 943 | 260 | 3770 | 60 |
1" | 34 | 57.5 | 834 | 230 | 3335 | 85 |
Data source: JINGCHENG 2025 Electrically Heated Hose Catalog. Maximum service temperature up to 250°C; 35 MPa at 250°C. Confirm the rating for your size and operating temperature with our engineers when ordering.
Each JINGCHENG electrically heated hose is assembled to the buyer's specification. The catalog order form covers the following items:
Parameter | Options listed in the catalog |
|---|---|
Supply voltage | 380 Vac, 220 Vac, 110 Vac, 12 Vdc or other |
Temperature sensor | Type J thermocouple, Type K thermocouple, Ni120, PT100, PT1000 or other |
Hose length | 3 m, 4.5 m, 5 m, 6 m, 10 m or other |
Inner diameter | Φ8, Φ12, Φ16, Φ19, Φ25 mm or other |
Working pressure | 4 MPa, 10 MPa, 20 MPa, 35 MPa or other |
Heating power | 110 W/m, 150 W/m, 170 W/m, 200 W/m or other |
End fittings | US, British or metric threads, or other |
Wiring | Pin number, wire color and function at the controller end and the gun/tool end |
A typical code such as JCH-200-16-B-3X220-P2-8 is read as follows: 200 = working temperature 200°C; 16 = inner diameter Φ16 mm; B = inner tube type (B stainless steel corrugated tube, TB PTFE hose with stainless steel braid, T PTFE hose, X special material); 3X220 = supply (220 = 220 V single phase, 3X220 = three-phase four-wire 220 V); P2 = sensor (P2 PT100 two-wire, P3 PT100 three-wire, K Type K, J Type J, W no sensor, T special sensor); 8 = working pressure 8 MPa.
Ambient temperature -40°C to +55°C, relative humidity not above 85%
Atmospheric pressure 86 kPa to 106 kPa; voltage range 12 Vac to 380 Vac
No gases that corrode metal or damage insulation, no conductive media and no severe mold in the surroundings; other environments are handled as custom builds
Connect the hose strictly according to its technical data and the pin table delivered with it.
Never twist the hose sideways during or after installation; torsion can lead to leakage, flow loss, hose damage or fire.
Keep bends generous; over-bending can damage the hose and cause short circuit, leakage or fire.
Let only authorized, trained operators handle the hose, ideally a dedicated team.
Unauthorized modification or adjustment voids the warranty.
For any situation not covered by the instructions, contact JINGCHENG engineers for installation guidance.
Send your inquiry by phone, fax or the website inquiry form.
Our engineers confirm the most suitable specification as the basis for quotation.
You receive a quotation and confirm with a purchase order.
The hose is produced in our factory to the confirmed specification.
Every hose is inspected for defects and packed.
The order is shipped to your designated address.
Melt temperature: give the process temperature and the maximum hose temperature required (up to 250°C).
Extrusion pressure: state maximum pressure, including start-up peaks.
Size and length: choose the inner diameter for your throughput (3/8" to 1") and the distance between connection points.
Electrical data: supply voltage, power per meter and the sensor type of your temperature controller.
Mechanical and electrical interfaces: thread standard at each end (US, British or metric) and the connector and pin layout of the machine.
Shenzhen Jingcheng High-Tech Co., Ltd. has manufactured PTFE hoses and PTFE electrically heated hoses since 2005 and delivers complete insulated hot-fluid conveying solutions. Its extruder connection hose is in long-term, stable supply to domestic extruder manufacturers, and every unit is built to the customer's electrical and mechanical parameters. Share your machine data and we will propose a matching specification and quotation.
