Pre-treatment for conveyor pulley surface preparation
All coated drum pulley are shot-blasted for better surface preparation. This preliminary work is essential if the rubber lagging is to achieve optimum adhesion to the conveyor belt pulley. Shot blasting is a technique that consists of projecting microbeads onto the surface of an object using a shot blasting machine to modify its surface structure. This technique is used to improve the surface integrity and hardness of a material, and to improve adhesion between different adhesive layers.
Need for
Technical advice?
Call our drum experts
A range of drum pulleys for all sectors of activity
ALTEMA's experience enables us to meet both classic conveyor pulley and handling drum pulley requirements, as well as more specific needs in all sectors of activity: mining, quarrying, recycling, fertilizers, ports, food processing.
+10,000 Drum pulleys per year
+10 Business sectors
+500 satisfied customers
Profile types
Diamond
The universal lagging
Used on deflection and take up pulley. It is also suitable for head pulley.
Ceramics
The high-adhesion lagging
Effective in humid environments to prevent slipping on the conveyor belt.
Smooth
Protective lagging
For conveyor pulleys that don’t drive the belt, to extend their service life.
Slide Lag
For high tensile forces
Its elastomer composition gives head or drive pulleys high tensile strength.
Pulley bars
Anti-skid lagging for large drums
Ruggedly designed, the anti-skid bars are made of wear-resistant rubber for long life.
Griplag
For tough conditions
The Griplag prevents slippage and is self-cleaning, preventing material build-up and misalignment.
The benefits of rubber lagging
- Bonding systems that make installing pulley rubber easy, fast and tailored to your needs.
- The lagging protect the belt and significantly improve the conveyor’s overall performance, thus extending its service life.
- They ensure that rollers and drum pulleys rotate smoothly without clogging, thus maintaining and aligning the conveyor belt.
- Rubberized pulleys protect the belt by reducing slippage between belt and pulleys.
- They reduce the belt’s operating tension, thus reducing belt elongation.
- They reduce conveyor noise and vibration.
TECHNICAL SUPPORT IN DEFINING YOUR PRODUCTS
Since 1995, ALTEMA has been developing special belt pulleys for quarries, mines and other sectors requiring conveyor drums. The company offers a range of solutions to meet all its customers’ needs, even the most specific, by defining a conveyor drum pulley perfectly adapted to the customer’s constraints.
Altema services
RDM DIMENSIONING
ALTEMA's Engineering Department is able to dimension and verify conveyor drum pulleys and elevator pulleys using its RDM and 3D CAD calculation software.
Static and Dynamic Balancing
ALTEMA offers balancing solutions and services for high-speed conveyor pulleys, to keep them running at peak performance.
TECHNICAL SUPPORT
Depending on the application, the field of activity, the transported material and the climatic conditions, ALTEMA offers you specific solutions to optimise your products and improve your performance.
Different laggings and preparation
Hot vulcanization
Vulcanisation is a chemical process that gives the drum greater tensile strength, swelling and abrasion resistance, as well as greater elasticity.
Cold rubberizing
Cold rubber bonding is generally used on “classic” drum pulleys for rubber coatings with smooth, diamond-shaped ceramic inserts.
Special rubberizing
Laggings, such as Slide Lag, PulleybarsⓇ or GriplagⓇ, are applied to drums and pulleys by mechanical assembly.