Load capacity is the main criterion for choosing a tail lift. This parameter shows how much weight the platform can lift and hold during operation. It is provided by the hydraulic system, in particular, its main units - hydraulic cylinders. But the load capacity depends not only on the drive power, but also on the design of the device itself. In this article, we will examine this issue in detail.
What is the load capacity?
The load capacity is taken into account when choosing not only a tail lift, but also any other equipment for lifting loads. This is the main operating parameter, the productivity and durability of the device depend on it: if the permissible loads are exceeded, repair of the hydraulic platform may soon be required. The hydraulic pump, hydraulic cylinders, bearings and other units may fail. Violation of operating techniques is not a warranty case, the customer pays for maintenance at his own expense.
When designing any equipment for lifting loads, developers take into account two types of load capacity:
- Dynamic - the ability to lift a load with a certain weight. In fact, this parameter is taken into account during short-term lifting of a load without holding it.
- Static - this is the ability to hold the maximum permissible weight in a stationary state. This parameter is the key one for tail lifts, which are primarily intended for long-term work with cargo.
Despite the fact that static lifting capacity is the main one for hydraulic platforms, both parameters are taken into account when manufacturing tail lifts. Correct calculations ensure safety during operation of the equipment.
Carrying capacity and design of the tail lift
Carrying capacity depends on the type of platform - let's note the key features:
- Cantilever (classic) tail lift - the maximum load for such equipment can be 4000 kg. This is a fairly common model of the platform, which when folded can replace the rear door of a van or trailer. This design is more reliable and is equipped with stiffeners.
- Retractable tail lift - such models are also called sliders, their platform is located under the frame of the car and is extended immediately before work. Their carrying capacity does not exceed 2500 kg, which is explained by a more complex design.
What determines the carrying capacity of a classic tail lift?
A classic tail lift is a cantilever type, it is often installed on trucks, trailers and semi-trailers. Its advantage is not only a higher load capacity, but also ease of operation, reliability and maintainability. Such platforms, unlike retractable ones, are designed for continuous operation and for long-term loads.
The load capacity of a hydraulic platform depends on the design features of the model:
- Hydraulic pump power - the more powerful the pump, the higher the load capacity of the platform. It ensures the circulation of hydraulic fluid through the lines and, as a result: lifting and holding the load. Powerful platforms, such as the SL 4000 tail lift, are equipped with a more efficient pump.
- The number of cylinders is the working units that ensure the lifting of the load under the pressure of the liquid in the lines pumped by the pump. For example, the SL 750 (1/2) "Polovinka" model with a lifting capacity of up to 750 kg is equipped with 3 hydraulic cylinders, and the SL 1000 platform for lifting loads weighing up to 1000 kg is equipped with 4 cylinders.
- Platform design - the platform itself and its components must withstand the loads for which it is designed. When designing equipment, the weight of the load itself, the operator and the pallet truck are taken into account. If necessary, the design is reinforced and supplemented with stiffeners.
Load capacity is the main parameter with which to begin the selection of a tail lift. Our catalog presents a large selection of platforms: from small to more productive, which can be purchased at an affordable price. We can manufacture a custom tail lift, install it on a car or trailer. Our manager will provide detailed advice by phone or online.