Automatic High-Speed Tension Clamp

Automatic Tension Clamp – Self-Adjusting Dead-End for Fiber Optic Cables

Automatic tension clamps (also called constant/self-tensioning clamps) are spring-loaded, self-adjusting anchoring fittings designed to automatically maintain consistent tension on ADSS and FTTH drop cables. Ideal for outdoor networks where thermal expansion/contraction, vibration, or cable creep requires no manual retightening over time.

Key Features

• ✅ Self-Adjusting Spring Mechanism: Integrated Belleville disc springs automatically compensate for temperature changes, vibration, and cable relaxation—no retightening needed.

• ✅ Tool-Free Installation: Hand-operated wedge design; install in seconds without hydraulic tools or specialized equipment.

• ✅ UV & Weather Resistant: Body in UV-stabilized PA66 GF; springs in stainless steel (SS304); service life ≥25 years.

• ✅ Cable-Safe Grip: Anti-slip cleats hold cables firmly without damaging fiber jackets; grip strength ≥90% of rated tensile strength.

• ✅ Consistent Tension Control: Maintains stable 1.5–10kN tensionacross -40°C to 85°C operating range.

• ✅ Vibration & Fatigue Resistant: Withstands wind-induced vibration; tested for >10⁷ cycles without loosening.

• ✅ Universal Compatibility: Fits 0–15mm diameterADSS, FTTH drop, and mini-span fiber cables.

• ✅ Industry Certified: CE, RoHS, ISO 9001 compliant; meets IEC 61284 for overhead fiber fittings.

Applications

• ADSS fiber optic cables (3–15mm diameter)

• FTTH drop cables (2.0–5.0mm diameter, round/butterfly)

• Outdoor telecommunication distribution lines

• Dead-end poles, angle poles, and building service drops

• Street lighting fiber links and utility pole anchoring

• Projects requiring zero-maintenance tension control(remote/harsh areas)

Material

• Body: UV-stabilized fiberglass-reinforced polyamide (PA66 GF)

• Wedges: High-friction anti-slip thermoplastic

• Spring: Stainless steel (SS304), corrosion-resistant

• Bail/Link: Stainless steel (SS304) or hot-dip galvanized steel

• Surface Finish: Black (UV-protective)

Quality Standard & Certification

• CE, RoHS, ISO 9001

• Compliant with IEC 61284 (overhead fiber fittings)

Technical Parameters

• Installation Method: Tool-free wedge insertion (hand-tighten)

• Color: Black

• Service Life: ≥25 years

• Operating Temperature: -40°C to 85°C

• Tension Adjustment: Automatic (spring-loaded)

Shipping & Packaging

• Unit Weight: 0.20–0.42 kg/pc (depends on model)

• Carton Size: 35×25×20 cm

• Quantity per Carton: 200 pieces

• HS Code: 8536909000

• Origin: China