Cable damage from vibration, abrasion, and sharp edges causes costly downtime and rework in electrical installations. Standard smooth tubing cracks under flex; rigid conduit won’t bend around tight corners. You need a sheath that protects wires, bends easily, and holds up in real working conditions.This 18.5mm outer diameter plastic corrugated conduit with a 14.5mm inner diameter is built for exactly that. Single-wall corrugated structure made from PE or PP, it slides over wire bundles and locks out dust, moisture, and mechanical stress. Sold in retail lengths — ideal for maintenance jobs, small projects, or field repairs where you don’t need a full roll.Key Specifications
| Parameter | Value |
|---|---|
| Outer Diameter (OD) | 18.5 mm |
| Inner Diameter (ID) | 14.5 mm |
| Wall Thickness | ~2.0 mm |
| Length Options | 50 m / 100 m per roll (retail cut available) |
| Material | PE (Polyethylene) or PP (Polypropylene) |
| Operating Temperature | -40°C to +105°C |
| Color | Black (custom on request) |
| Flame Rating | UL94 V-2 |
| Min. Bending Radius | ~5× OD (92.5 mm) |
| Protection Class | IP54 (when paired with correct fittings) |
Why This Conduit Works in Tough Conditions
- Vibration and impact resistance — The corrugated wall absorbs shock and resists crushing. Holds up in motor housings, conveyor systems, and vehicle chassis where constant vibration loosens smooth tubing over time.
- Low pull-in friction — Smooth inner bore lets you feed wire bundles through long runs without snagging. Cuts installation time on panel wiring and machine harnesses where dozens of cables run through the same path.
- Chemical and moisture barrier — PE/PP resists oil, grease, weak acids, and water absorption. Suitable for damp basements, outdoor junction boxes, and engine compartments without swelling or degrading.
- Tight-space flexibility — Bends to a 92.5 mm radius without kinking. Fits inside control cabinets, behind PLC racks, and along curved machine frames where rigid conduit simply won’t go.
Typical Applications & IndustriesElectrical control panels and distribution boards — internal wire organization. Automotive wiring harnesses — engine bay and door routing. Industrial machinery — CNC, packaging, conveyor cable protection. Building automation — HVAC and lighting circuits. Solar PV installations — DC cable sheathing in combiner boxes. Telecom and data centers — low-voltage cable management.Ordering, Customization & SupportWe sell this 18.5mm corrugated conduit by the meter and by the roll — no forced bulk minimums. Need a different length, color (grey, white, blue), or material (PA nylon for higher heat)? We cut to spec and ship within 3–5 working days for stock items, 7–15 days for custom runs. Every batch is tested for dimensional accuracy and crush resistance before packing. 12-month product warranty included. Send us your cable diameter and routing details — we’ll confirm fit and price within 24 hours.