How to Select a Suitable Top Movable Ladder?
When selecting a suitable top movable ladder for loading arm, the following aspects can be considered:
Usage Scenarios: First, clearly define the usage environment of the movable ladder. If it is used in an outdoor oil product loading and unloading area, factors such as wind, rain, and sunlight need to be taken into account. A movable ladder with good anti-rust and anti-corrosion properties should be selected. If it is used in a chemical product loading and unloading area, due to the possible corrosiveness of chemical products, the material of the movable ladder needs to have stronger corrosion resistance.
Load-bearing Capacity: Select according to the maximum load that may occur in actual use. For example, if multiple workers need to climb the movable ladder simultaneously for operation, or if some heavy tools need to be carried, a movable ladder with a larger load-bearing capacity must be selected. Generally speaking, the load-bearing capacity of an industrial top movable ladder should not be less than 200 kilograms.
Size Specifications: Consider the height, width, and other dimensions of the tank truck or operation platform. The height of the movable ladder should be able to meet the requirement that workers can smoothly reach the top of the tank truck from the ground or the operation platform, and there should be a certain margin. Usually, the extended height of the movable ladder should be 0.5-1 meter higher than the top of the tank truck. At the same time, the width of the movable ladder should be suitable for workers to walk comfortably, generally not less than 0.4 meters.
Structural Features: A movable ladder equipped with a follow-up balance device can hover at any angle, which is convenient for workers to operate at different positions. The design that keeps the movable treads always horizontal can improve the safety of walking. If the contact point between the treads of the movable ladder and the tank truck is provided with a collision buffer pad, it can reduce the wear on the tank truck.
Safety Performance: Safety is a key factor in selecting a top movable ladder. A movable ladder equipped with a safety chain should be selected. When the required angle is reached, hanging the chain can prevent the movable ladder from being stepped on empty. The design with anti-pinch foot treads can effectively prevent the operator's feet from being pinched. At the same time, the anti-slip treatment of the surface of the movable ladder is also crucial, and it is necessary to ensure that it can provide good anti-slip effects under various weather conditions.
Installation and Maintenance: Select a movable ladder that is easy to install, which can reduce the installation cost and time. At the same time, consider the convenience of maintaining the movable ladder, such as whether the components are easy to replace and whether there are good maintenance accesses.
