What is the difference between single and double cantilever arms?

Single arms use one channel section; double arms use two back-to-back sections (e.g. 21D, 41D) for higher load capacity and longer spans.

What is the material and finish?

Q235B carbon steel to GB/T 700-2006, electro-galvanized as standard, with hot-dip galvanizing available on request.

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41 single cantilever arm channel bracket with base plate

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41 single cantilever arm channel variant

Product 03

Cantilever Arm Channel

L-shaped cantilever brackets — a base plate fixes to the wall or column, and a horizontal channel arm supports pipe, cable tray and duct clear of the structure. Single & double (back-to-back) arms, KIS 21–72.

KIS 21 / 41 / 52 / 72Single & DoubleArm 300–1000 mmQ235B SteelGalvanized

Type

Single & double (back-to-back) cantilever arm

Sections

KIS 21 / 41 / 52 / 72 / 21D / 41D

Arm length

300, 450, 500, 600, 800, 1000 mm

Material

Q235B carbon steel (GB/T 700-2006)

Finish

Electro-galvanized; HDG on request

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Overview

Wall-Mounted Cantilever Support

A cantilever arm channel is an L-shaped strut bracket: a base plate bolts to a wall, column or structural face, and a horizontal channel arm projects outward to carry pipe, cable tray or duct away from the surface. It's the standard way to run services along a wall without floor or ceiling support.

We supply single cantilever arms (one channel section) and double back-to-back arms (e.g. 21D, 41D) for higher loads and longer spans, with arm lengths from 300 to 1000 mm. All arms are made from rolled C-channel with anti-slip serrations for secure component clamping.

Specifications

Cantilever Arm Range

Single Cantilever Arm Channel

Part No.	Description	Arm Section	Arm Length (mm)
201-300-200-235-4-00	Cantilever Arm 21×300	KIS 21	300
201-200-200-235-4-00	Cantilever Arm 21×500	KIS 21	500
202-300-200-235-4-00	Cantilever Arm 41×300	KIS 41	300
202-450-200-235-4-00	Cantilever Arm 41×450	KIS 41	450
202-600-200-235-4-00	Cantilever Arm 41×600	KIS 41	600
202-800-200-235-4-00	Cantilever Arm 41×800	KIS 41	800
203-450-250-235-4-00	Cantilever Arm 52×450	KIS 52	450
203-600-250-235-4-00	Cantilever Arm 52×600	KIS 52	600
204-500-250-235-4-00	Cantilever Arm 62×500	KIS 72	500
204-800-250-235-4-00	Cantilever Arm 62×800	KIS 72	800

Double Cantilever Arm Channel

Part No.	Description	Arm Section	Arm Length (mm)
211-300-200-235-4-00	Double Cantilever Arm 21D×300	KIS 21D	300
211-450-200-235-4-00	Double Cantilever Arm 21D×450	KIS 21D	450
211-600-200-235-4-00	Double Cantilever Arm 21D×600	KIS 21D	600
212-010-200-235-4-00	Double Cantilever Arm 41D×1000	KIS 21D	1000

Features

Why It Works

Bolt-on base plate for fast fixing to walls, columns and structural faces.
Serrated channel arm grips channel nuts and fittings — no slip under load.
Single & double versions cover a wide load range and spans to 1000 mm.
Galvanized finish — electro-galvanized standard, hot-dip on request.

Applications

Where It's Used

Wall-mounted pipe runs — water, HVAC and process piping.
Cable tray & conduit supported along walls and shafts.
Utility tunnels & basements — multi-tier service racks.
Plant rooms & mechanical spaces requiring wall-side support.

FAQ

Common Questions

What is a cantilever arm channel?

An L-shaped strut bracket — a base plate fixes to a wall or column, and a horizontal channel arm supports pipe, cable tray or duct away from the surface.

What arm lengths are available?

Single arms from 300 to 800 mm (KIS 21/41/52/72); double back-to-back arms from 300 to 1000 mm (KIS 21D/41D).

Single vs double cantilever arm?

Single arms use one channel section; double arms use two back-to-back sections for higher load capacity and longer spans.

Material and finish?

Q235B carbon steel to GB/T 700-2006, electro-galvanized as standard, hot-dip galvanizing on request.

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Tell us the sections and arm lengths you need — we'll quote within 24 hours.