MOTRIDAL - Bucket Elevators
From Material Handling Systems
Motridal produces a wide range of bucket elevators, including both slow bucket elevators with central discharge and fast bucket elevators with peripheral discharge, in either belt and single chain or double chain form. Thanks to the variety of products, Motridal can select the best type of machine for every type of requirement (capacity, material to be handled, service requirements…).
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Product Overview
With over 50 years of close co-operation with the technical staff of its customers and thanks to the high quality of the components used, Motridal can manufacture bucket elevators, with high-capacity (more than 1.000 t/h) and heights over 70 m.
On the basis of its consolidated know how and highly qualified engineering staff, Motridal can provide turn key solutions expressly studied to satisfy the customers' specific needs. Motridal operates world wide and gives local assistance for the erection and start up of the machines.
DOUBLE CHAIN BUCKET ELEVATORS
The material characteristics (temperature, abrasiveness…) or the particular environmental needs, may require a fast chain bucket elevator with peripheral discharge.
Motridal can provide double chain bucket elevators with smooth or sprocket wheels (for heavy duty applications). The bucket elevator wheels have bolted rims easily replaceable fabricated in wear resistant steel.
Motridal’s double chain bucket elevators are available not only with sectional chains and shackles (DIN system), but also with other bucket mounting systems which allow the use of continuous chains.
Slow bucket elevators with central discharge are used for conveying crumbly materials, with a big lump size (lime, calcium oxide…) in order to minimise dust output. These machines are equipped with a double chain, properly shaped buckets and a hopper below the driving wheels.
CENTRAL CHAIN BUCKET ELEVATORS
High-speed bucket elevators with long centre distances, intended for heavy-duty, can be equipped with a traction element composed of a single chain.
This system allows long service life of the chain, thanks to the specific chain design employing rotating pins. Furthermore, the use of a single traction element guarantees a perfect bucket alignment in every working condition. Motridal’s central chain bucket elevators are available both with smooth or sprocket wheels depending on the application required.
BELT BUCKET ELEVATORS
Belt bucket elevators are used for conveying fine materials at long centre distances.
The traction element of these machines is a belt with Nylon-Polyester carcass with a rubber cover; a steel cord carcass belt is also available for heavy-duty applications.
Thanks to the availability of wear resistant belt covers, anti-oil or thermo-resistant material, belt bucket elevators can be used in several industrial fields (cement factories, chemical, food industry…).
Furthermore, the belt allows you to optimise the bucket spacing, in order to achieve the required capacity without changing the speed or the bucket filling, ensuring a higher level of reliability and a longer machine life.
The drive pulley is a crowned type for belt centring, lagged with synthetic rubber to guarantee an high coefficient of friction for belt drive. The rubber is grooved with rhomboidal design and self cleaning characteristics. Optional, the rubber lining is realised with strips made of synthetic rubber.
All the strips are interchangeable and can be easily replaced when worn.
The replacement is made directly from the dedicated outside trough hatches avoiding any machine dismounting.
The drive shaft is made of 39 NiCrMo 3 and is designed for resistance against bending, torque and yield. The assembly of the shaft and the drum is realised by means of a locking ring.
Return idle drum is squirrel cage, in order to prevent belt damage from material falling between the belt and drum. The bars are in C 40, slightly bent to obtain a proper convexity of the drum.
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