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Soren20061110
JINGCHENG
3917290000 3904610000 3917390000
JINGCHENG Solvent-Free Laminator Hose is an electrically heated hose for all kinds of imported and domestic solvent-free laminating machines, heat resistant up to 230°C and developed in long-term, stable cooperation with many laminating machine brands. This page explains why the laminator hose table stops at 1/2", compares the four bores row by row — pressure, outer diameter and the jump in bend radius from 60 mm to 150 mm — and gives a step-by-step way to choose a size for the adhesive metering line.
Most JINGCHENG heated-hose tables run from 1/4" up to 1" inner diameter. The solvent-free laminator hose is different: the catalog lists only four small bores — 1/4", 5/16", 3/8" and 1/2". Solvent-free laminators meter relatively small, precisely controlled volumes of adhesive, so the hose is sized for accurate, temperature-stable delivery rather than bulk flow. This guide explains how to choose between those four rows.
JINGCHENG's solvent-free laminator hose is an electrically heated hose applied on all kinds of solvent-free laminating machines, both imported and domestic. The catalog notes that many laminating machine brands in the industry have long-term, stable cooperation with JINGCHENG. Heat resistance is up to 230°C, with higher temperature on request.
Hold viscosity steady: adhesive viscosity depends on temperature, so the hose must keep the adhesive at a stable temperature from the metering and mixing unit to the coating station.
Avoid cold and hot spots: uniformly braided heating elements minimize the temperature difference along the inner wall.
Keep heat in the line: high-efficiency insulation, selected with the hose surface temperature in mind, limits heat loss in the machine frame and keeps the jacket safer to touch.
Report the right temperature: the sensor — Type J or Type K thermocouple, Ni120, PT100 or PT1000 — is matched to the laminator controller.
1/4" (9 mm OD) — working pressure 173 bar (2501 psi), burst 690 bar (10005 psi), minimum bend radius 30 mm. The tightest routing of the four sizes, for short, compact connections.
5/16" (11 mm OD) — working pressure 158 bar (2284 psi), burst 630 bar (9137 psi), bend radius 40 mm.
3/8" (12.4 mm OD) — working pressure 135 bar (1958 psi), burst 540 bar (7830 psi), bend radius 60 mm.
1/2" (15.9 mm OD) — working pressure 118 bar (1704 psi), burst 470 bar (6815 psi), bend radius 150 mm. The largest bore in this table, for higher adhesive volumes, with a bend radius more than double that of 3/8".
Two practical points follow from the table. First, moving from 3/8" to 1/2" changes the routing more than the pressure: the radius rises from 60 mm to 150 mm, so check the space around the coating station before you upsize. Second, all OD values are ±0.2 mm, which matters when the hose passes through clamps and cable guides on the laminator frame.
Note: the catalog prints the 5/16" burst figure as 3915 psi; 630 bar corresponds to about 9137 psi, which is the value used here.
Inner Diameter (inch) | Outer Diameter (mm ±0.2) | Working Pressure (bar) | Working Pressure (psi) | Burst Pressure (bar) | Burst Pressure (psi) | Min. Bend Radius (mm) |
|---|---|---|---|---|---|---|
1/4" | 9 | 173 | 2501 | 690 | 10005 | 30 |
5/16" | 11 | 158 | 2284 | 630 | 9137 | 40 |
3/8" | 12.4 | 135 | 1958 | 540 | 7830 | 60 |
1/2" | 15.9 | 118 | 1704 | 470 | 6815 | 150 |
Data source: JINGCHENG 2025 Electrically Heated Hose Catalog. Heat resistance up to 230°C; higher temperature on request. Confirm the rating at your operating temperature with our engineers when ordering.
Start from the adhesive system: state the adhesive and its working temperature and confirm it against the 230°C rating.
Pick the smallest bore that carries the required volume — smaller bores bend tighter and fit more easily in the machine.
Measure the route from the metering and mixing unit to the coating station and check every bend against the radius for your row.
Define the electrical interface: supply voltage (380 Vac, 220 Vac, 110 Vac, 12 Vdc or other), rated power (110, 150, 170 or 200 W/m or other) and the sensor type.
Define the ends: US, British or metric threads, and the pin number, wire color and function at each connector.
Every hose is built to order; catalog lengths are 3 m, 4.5 m, 5 m, 6 m, 10 m or other. A model code such as JCH-200-16-B-3X220-P2-8 reads as 200°C, Φ16 mm ID, inner-tube type B, three-phase four-wire 220 V, PT100 two-wire and 8 MPa.
Do not twist the hose sideways during installation or operation; torsion can cause leakage, flow loss, hose damage or fire.
Avoid sharp bends next to the fittings.
Wire the hose according to its technical data and the pin table supplied with it.
Keep ambient conditions within -40°C to +55°C and relative humidity not above 85%.
Send your laminator model, adhesive, temperature, bore, length and connection details. JINGCHENG engineers will confirm a matching solvent-free laminator hose specification and quotation.
