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Soren20061109
JINGCHENG
3917290000 3904610000 3917390000
JINGCHENG Extruder Heated Hose is an electrically heated flexible connection for extrusion equipment, extruders and line marking machines, with a maximum service temperature up to 250°C and a pressure rating of 35 MPa at 250°C. This page is a spec-sheet reading guide for the JINGCHENG extruder heated hose: five catalog sizes from 3/8" to 1", the 250°C service limit, the 35 MPa rating at 250°C, and how those numbers compare with a general high-pressure heated connection hose.
On extruders and line marking machines, molten or highly viscous material has to travel from the melt source to the die, nozzle or applicator without losing temperature. A rigid heated pipe cannot follow a moving head or absorb frame vibration. An unheated flexible line lets the melt cool, thicken and block. The same hose must also carry extrusion pressure while it is hot. JINGCHENG's extruder heated hose is built for that combination: a flexible, electrically heated melt connection for common extrusion equipment, extruders and line marking machines, with a maximum service temperature of 250°C and a pressure rating of 35 MPa at 250°C.
The table lists five standard inner diameters from 3/8" to 1". Read each row as a complete specification, not as a family headline.
Inner diameter first. Match ID to throughput, then stay on that row for pressure and bend radius.
Working pressure is size-specific: 110 bar (1595 psi) at 3/8", 88 bar (1269 psi) at 1/2", 70 bar (1015 psi) at 5/8", 65 bar (943 psi) at 3/4" and 57.5 bar (834 psi) at 1". Include start-up peaks when you compare these figures with extrusion pressure.
Burst pressure on each row is four times working pressure (440 / 110 bar at 3/8" through 230 / 57.5 bar at 1").
Minimum bend radius is 20, 25, 30, 60 and 85 mm from 3/8" to 1". The step from 30 mm at 5/8" to 60 mm at 3/4" is easy to miss when a die or marking head has little room.
Outer diameter (mm ±0.2) is 15.5, 19, 22.7, 27 and 34 mm.
The headline ratings — 250°C and 35 MPa at 250°C — sit above the table. 250°C is the maximum service temperature. 35 MPa at 250°C is the stated high-temperature pressure capacity of this hose; confirm the rating for your size and operating temperature when you order. Other sizes and lengths are made to order.
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 at your operating temperature with our engineers when ordering.
Heating elements are uniformly braided around the hose so inner-wall temperature differences stay small and the melt leaves at a consistent temperature. High-efficiency insulation is selected with the outer surface temperature in mind, which reduces heat loss around a moving head. The hose can carry a Type J or Type K thermocouple, Ni120, PT100 or PT1000 and the machine's connector pin layout, so it is controlled as an extra heating zone of the extruder.
The special-equipment connection hose (high-temperature, high-pressure service up to 230°C, custom builds up to 40 MPa) publishes eight sizes from 5/16" to 1-1/2". This extruder hose publishes the five middle sizes from 3/8" to 1" and is rated to a higher service temperature (250°C) with 35 MPa at 250°C. If the machine needs 5/16", 1-1/4" or 1-1/2", or a custom pressure above this table, the broader special-equipment range is the catalog place to look. If the duty is extrusion or line marking at up to 250°C, this five-row table is the one to size from.
Typical connections are the heated melt line between melt pump, filter or screen changer and die; flexible heated transfer between extrusion modules; heated delivery of marking material from a melter to the applicator; and OEM hoses built to a machine builder's electrical and fitting standard. The product has been in long-term, stable supply to a number of well-known domestic extruder manufacturers.
Every unit is assembled to order. Catalog options include 380 Vac, 220 Vac, 110 Vac, 12 Vdc or other; the sensor types listed above; lengths of 3 m, 4.5 m, 5 m, 6 m, 10 m or other; inner diameters Φ8, Φ12, Φ16, Φ19, Φ25 mm or other; working-pressure options of 4 MPa, 10 MPa, 20 MPa, 35 MPa or other; 110–200 W/m heating power; and US, British or metric threads.
A code such as JCH-200-16-B-3X220-P2-8 reads as 200°C, Φ16 mm, inner-tube type B (B = stainless steel corrugated tube, TB = PTFE with stainless braid, T = PTFE, X = special), 3X220 supply, PT100 two-wire, 8 MPa.
Give melt temperature and the maximum hose temperature required (up to 250°C).
State maximum extrusion pressure, including start-up peaks, against the row for your ID.
Choose 3/8" to 1" ID and the length between connection points; respect the listed bend radius.
Specify voltage, watts per meter, sensor type, thread standard and the machine's pin layout.
Share machine data and JINGCHENG will propose a matching specification and quotation.
