Published on:2026-05-24 Click:21
ROV cable 2x1.0mm2 with 200kg Kevlar tether strength member. Foamed PUR neutrally buoyant for compact ROV tether with combined power and tensile strength.
The 2x1.0mm² + 200kg Kevlar neutrally buoyant ROV tether is a compact, lightweight tether for small observation ROVs where a moderate tensile strength (200 kg MBS, 50 kg WLL) is required alongside the power supply. The Kevlar aramid strength member allows the tether to serve as both the electrical umbilical and the retrieval/safety rope for the ROV. The foamed PUR jacket provides neutral buoyancy. The foamed polyurethane (PUR) jacket uses a micro-cellular expanded jacket compound with a bulk density lower than seawater (~1.025 g/cm³), giving the cable near-zero or positive net buoyancy. This eliminates tether sag and reduces drag force on the ROV, improving vehicle manoeuvrability and reducing tether management workload during subsea operations.
| Parameter | Specification |
|---|---|
| Power Cores | 2 x 1.0 mm² tinned copper |
| Current Rating | ~10A per core |
| Strength Member | Kevlar aramid |
| MBS | 200 kg (1.96 kN) |
| WLL | 50 kg |
| Jacket | Foamed micro-cellular PUR |
| Buoyancy | Neutrally buoyant |
| Custom | Power CSA, Kevlar MBS, length, connector |
Request datasheet, custom length, or OEM pricing: sales@rovcable.com -- Shanghai Kabel Intelligence Technology Co., Ltd.
The jacket is manufactured from a micro-cellular expanded (foamed) polyurethane compound. During extrusion, a controlled foaming agent creates millions of tiny closed-cell air pockets within the jacket wall. These air cells reduce the bulk density of the jacket below that of seawater (~1.025 g/cm³), producing positive or neutral net buoyancy. The jacket retains all the abrasion resistance, oil resistance, and flexibility of standard PUR while achieving the buoyancy needed for ROV tether applications.
200 kg MBS with a 4:1 safety factor gives a 50 kg WLL. If your ROV weighs less than 30 kg in air (approximately 15 kg in water for a neutrally buoyant vehicle), a 50 kg WLL leaves a comfortable safety margin. For ROVs >30 kg or operations in strong currents, upgrade to the 500 kg (n=671) or 2000 kg variant. A general guideline: select Kevlar MBS = 10x ROV weight-in-air as a minimum for retrieval safety.
