Polyester Braided Binding Rope for Motor Transformer
Main Parameters:
Thermal Class: Class F / H (up to 155°C – 180°C typical)
Common Diameters: 0.5 mm, 1.0 mm, 1.5 mm, 2.0 mm, 3.0 mm, Customizable
Breakdown Voltage: Excellent electrical insulation (often >5 kV for dry condition, dependent on thickness)
Braided polyester binding rope is a specialized wound-rope product designed for securing and banding motor windings, commutators, and armatures.
Polyester Braided Binding Rope for Motor Transformer Description
Braided polyester binding rope is a specialized wound-rope product designed for securing and banding motor windings, commutators, and armatures. Woven from high-tenacity polyester (PET) fibers, this rope offers a flexible yet robust solution for mechanical and electrical binding applications. Unlike traditional banding tapes, its compact, cord-like structure allows it to access narrow or hard-to-reach areas within a motor’s core. This material combines the handling ease of traditional cotton tape with the superior strength and insulation properties of modern synthetics, making it a direct upgrade for winding fixation.
Polyester Braided Binding Rope for Motor Transformer Technical
| Parameter | Typical Value / Range | Remarks / Test Condition |
| Material | 100% Polyester (PET) fiber | High-tenacity, continuous filament |
| Construction | Braided (8/16/24 carrier) | Round or flat (oval) cord available |
| Color | White / Natural | May also be available in black or custom colors |
| Diameter (nominal) | 0.5 mm / 1.0 mm / 1.5 mm / 2.0 mm / 2.5 mm / 3.0 mm | Other sizes available upon request |
| Tensile strength | 60 – 500 N (depending on diameter) | Example: ~100 N for 1.0 mm, ~350 N for 2.0 mm |
| Elongation at break | 8 – 15% | Typical for PET braided cord |
| Heat shrinkage | 2 – 5% (at 150°C – 170°C for 30 min) | Shrinks upon heating → self-tightening effect |
| Thermal class | Class F (155°C) or Class H (180°C) | Depends on resin/varnish compatibility |
| Moisture absorption | < 0.5% | Much lower than cotton or rayon |
| Dielectric strength | > 5 kV (dry, as-received) | For reference; actual depends on installation |
| Chemical resistance | Good | Resistant to oils, acids, solvents (except strong alkalis/phenols) |
| Recommended tension during winding | 5 – 30 N (typical for 1–2 mm rope) | Avoid over-stretching to maintain shrinkage effect |
| Heat activation temperature | ≥ 120°C after binding | Polyester resin curing (oven or varnish bake) |
| Storage condition | Cool, dry (<50°C, <80% RH) | Avoid UV / direct sunlight |
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Polyester Braided Binding Rope for Motor Transformer
Polyester Braided Binding Rope for Motor Transformer Applications
Motor windings: securing end windings and commutator risers (especially in tight or hard-to-reach spaces)
Transformer coils: fixing lead wires and end coil turns
Armatures: binding winding overhangs in DC motors
Generators: retaining rotor and stator coil ends
Polyester Braided Binding Rope for Motor Transformer Detail Display
