FRP Double-chamber Square Tube

FRP Double-chamber Square Tube

The Jinyang FRP double-chamber square tube is a pultruded composite profile with two parallel internal cavities within a square outer shape. This design increases section stiffness and provides separate channels for cables or fluids, making it a versatile structural member for FRP structures and cable management.

How It Works

Glass fibers are pulled through a precision die that forms both outer walls and the internal dividing web, creating two closed cavities in one pultruded profile. The double-chamber section resists bending and torsion better than a single hollow tube, while the separate channels keep cables or services isolated.

Key Features

• Enhanced stiffness - internal web increases bending and torsion resistance.

• Dual channels - separate cavities for cable routing or service separation.

• High strength-to-weight - lighter than steel yet structurally efficient.

• Corrosion resistant - FRP resists moisture, chemicals, and outdoor weathering.

• Electrical insulation - non-conductive for cable and electrical structures.

• Consistent cross-section - pultrusion holds dimensions along full length.

Technical Options

Square outer sections from 50x50 mm to 200x200 mm, various web positions and wall thicknesses. Standard or UV-stabilized resin, custom colors, and lengths up to 6 m.

Typical Applications

Structural frames, cable trunking, railings, equipment supports, walkway structures, and dual-channel services.

Why Choose Jinyang

With over 20 years of FRP manufacturing, Hebei Jinyang Environmental Protection Equipment Co., Ltd. produces custom pultruded profiles to drawings. Contact Jinyang for double-chamber sizes and a quote.