SERIES 22
SERIES 32
Selecting the right Tellure Rota Wheel The safety and ease of handling of a trolley depend on the choice of the most suitable wheel. The choice must be made in accordance with the following procedure:- Calculate the minimum carrying capacity required to guarantee safe handling. This is determined by the weight of the load, its nature(solid or liquid) and the tare of the trolley.
- Choose the recommended wheel series for the type of floor (nature and condition of the floor) and then select only the recommended categories for the environment of use (temperature, humidity, aggressive chemical substances).
- Choose the wheel dimensions (diameter and tyre width) having the minimum required carrying capacity to guarantee ease of movement depending on the type of use: static use, manual propulsion, towed mechanical propulsion, self-powered propulsion.
- Combine the wheel with the most suitable castor for the application environment, the required carrying capacity and speed
| Tiled floor | Plastic materials, polyurethane, rubber |
| Asphalt floor | Rubber or elastic polyurethane |
| Cement-resin floor | Plastic materials, polyurethane, rubber |
| Unsurfaced floors | Rubber or elastic polyurethane |
| Floor contaminated with machining chips | Rubber or elastic polyurethane |
| Floor with grating | Rubber or elastic polyurethane |
| Solid Load: MINIMUM CARRYING CAPACITY REQUIRED = (SOLID LOAD WEIGHT + TROLLEY TARE): 3 (3 out of 4 wheels are considered to be constantly in contact with the ground). |
| Liquid Load MINIMUM CARRYING CAPACITY REQUIRED = (LIQUID LOAD WEIGHT + TROLLEY TARE): 2 (2 out of 4 wheels are considered to be alternately in contact with the ground). |
Static use
For static use (trolley moved only occasionally and stationary most of the time) it is sufficient to check: STATIC CARRYING CAPACITY OF THE WHEEL > MINIMUM CARRYING CAPACITY REQUIRED (3 out of 4 wheels are considered to be constantly in contact with the ground). Conversely, if the trolley is to be used frequently or over long distances, the type of handling must be assessed: manual, towed with mechanical means or self-powered.Manual handling
The trolley speed is generally less than 4 km/h; check that: DYNAMIC CARRYING CAPACITY OF THE WHEEL > MINIMUM CARRYING CAPACITY REQUIRED ROLLING RESISTANCE > (SOLID/ LIQUID LOAD WEIGHT + TROLLEY TARE): 4 Tellure Rôta shows the rolling resistance value for each wheel, this being the maximum applicable load at which the traction/thrust effort remains below 5 daN.The lower the rolling resistance of a wheel, the less effort is required.Towed mechanical propulsion
The dynamic carrying capacity of the wheels refers to a speed no higher than 4 km/h (1.1 m/s); if the speed exceeds this value, the carrying capacity value decreases. Use the carrying capacity correction factor shown in the speed and capacity variations table (see table –> open pdf file) and check: WHEEL DYNAMIC CARRYING CAPACITY X CORRECTION FACTOR (%) > MINIMUM REQUIRED CARRYING CAPACITY Not all the types of wheel can be used with mechanical propulsion; choose only the series shown in the table, combined with adequate castors.Self-powered mechanical propulsion
In this case the wheels are subjected to particular types of stress that differ from case to case. Contact Tellure Rôta to choose the most suitable product for your application.
