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Aluminum Trunnion Suspension Clamp

The Trunnion suspension clamp is a heavy-duty overhead line fitting designed to support and suspend conductors from transmission and distribution line structures while allowing limited conductor movement under mechanical loading. Its trunnion-mounted design minimizes stress concentrations, reduces conductor wear, and accommodates angular displacement caused by wind, temperature variations, and line vibration. Manufactured from high-strength, corrosion-resistant materials, the clamp provides reliable mechanical performance and long-term durability in demanding outdoor environments.

Key Features

  • Manufactured from hot-dip galvanized forged steel, ductile iron, or high-strength aluminum alloy.
  • Designed to securely suspend AAC, AAAC, ACSR, ACAR, and other overhead conductors.
  • Trunnion pivot mechanism allows controlled conductor movement and reduces bending stress.
  • High mechanical strength for transmission and distribution line applications.
  • Precision-machined conductor grooves prevent conductor damage and slippage.
  • Corrosion-resistant finish ensures long service life in harsh environmental conditions.
  • Compatible with suspension insulator strings and standard utility hardware.
  • Excellent resistance to vibration, wind loading, and thermal expansion effects.
  • Available in multiple sizes to suit various conductor diameters and load requirements.
  • Manufactured under stringent quality control and compliant with applicable IEC, ASTM, and utility specifications for overhead line hardware.

Product Details

General

Accessory TypeClamptop Clamp
Bolt Installation Torque (Recommended)300 in-lbs
Material – ClampAluminum
Material – HardwareGalvanized Steel
Number of Bolt Holes0
Number of Sheds0.50 in -1.06 in
Product CategorySuspension Clamp
Strength Rating – Ultimate Body2800 lb
TypeStandard Voltage Suspension Clamps

Dimensions

Angle – Take-Off Maximum20 °
Weight0.98 lb (0.44 kg)

Electric Ratings

Voltage ApplicationStandard

Logistics

Pallet Quantity1080
Standard Package30

Resources and Downloads

SpecificationsDownload PDF
Technical DrawingsDownload PDF