Product Overview
This Lightweight Aluminum Extension Ladder is a lightweight 9-meter two-section fire ladder, model TEL9-A. The main body is made of aluminum alloy and complies with the XF137-2007 Fire Ladder standard.
The Lightweight Aluminum Extension Ladder has passed type testing conducted by the National Fire Equipment Quality Inspection and Testing Center and has obtained CCC certification from the Fire Product Conformity Assessment Center of the Ministry of Emergency Management. All test results meet the required standards.
Core Specifications
The working length is 9 meters, with a tolerance of ±0.2 meters.
The minimum ladder width is 300 mm, with a tolerance of ±3 mm.
The rung spacing is 340 mm, with a tolerance of ±2 mm.
The total ladder weight is 25 kg, with a tolerance of ±1 kg.
Core Materials
The side rails are made of 6061-T6 aluminum alloy.
The rungs and support legs are made of 6463 aluminum alloy.
All core components are manufactured from specialized aluminum alloys, achieving an optimal balance between lightweight construction and structural strength.
Structural Strength Performance
The horizontal bending residual deformation ratio is no greater than 0.10%, which is far below the standard requirement of 0.30%.
The rung bending residual deformation ratio does not exceed 0.1%, meeting the applicable standard requirements.
The rung shear strength complies with the standard; no breakage occurred at the connection between the rung and the side rail, nor in the rung itself during testing.
During the warpage test, all ladder feet remained in contact with the ground.
The torsion angles at the rung joints are 8.0° in the forward direction and no more than 8.0° in the reverse direction, both within the specified limits.
Stable Usage Performance
During the slippage test, the ladder feet showed no displacement on the test surface.
After completion of the single-leg load test, the support legs and their connecting fittings exhibited no loosening, damage, or deformation.
The maximum cantilever bending deformation of the side rails was 1.0 mm for both inward and outward bending, which is well below the standard requirement of 5 mm.
During the lateral sway test, the residual deformation ratio reached a maximum of 0.09%, meeting the standard requirements.
The Lightweight Aluminum Extension Ladder demonstrated good impact resistance. During testing, the support legs maintained normal function, and no significant deformation or damage was observed in the support legs or rungs after the test.
Detailed Workmanship Features
The rungs and side rails fit tightly, with no looseness or jamming.
The metal rungs feature anti-slip surfaces to enhance safety.
All fasteners are securely tightened, with no protruding nail heads, sharp edges, or burrs.
The rivets are firmly fixed, with flat, semi-circular heads.
The outer surface is smoothly polished and free of burrs.
The side rails are equipped with angle gauges to accurately indicate the angle between the ladder and the ground.
The support legs are made of metal and provide firm support during operation. The limiting device operates reliably, ensuring smooth and stable extension and retraction.
Accessories and Labels
A dedicated nameplate is affixed to the side rail, displaying the product name, model, specifications, and other key information.
The ladder includes clear warning labels and, where applicable, bears the official certification mark. An instruction manual is provided for user convenience.
All components are clearly labeled, and all accessories are complete, meeting the applicable fire protection product requirements.
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