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Belt pulleys

We calculate, design and manufacture belt pulleys up to a diameter of 2,500 mm for belt conveyors in bulk material, conveying and processing plants. Belt pulleys are specialised to drive long conveyor belts around the clock. Therefore, a high processing quality of the components is required.

Gurttrommeln in verschiedenen Ausführungen

At Lütgert, each pulley is manufactured according to a standardised process and adapted to individual customer wishes and requirements. The belt pulleys are characterised by high quality, functionality, sustainability and durability.

Downloads

Grid and belt pulleys(1215 KB)

Accessories

Design of the shaft-hub connection as a cylindrical bore with groove and set screw, with TaperLock bush or clamping set.

Crowned or spherical design of the surface. Optionally with belt guidance ribs on the outer edges.

Belt disc with galvanically nickel-plated surface for use in the food processing industry.

At a glance

Features

Special production according to customers individual specifications or drawings
Standard for peripheral speeds up to 42 m/s
Maximum pulley diameter 2,500 mm
Maximum pulley weight approx. 6,000 kg

Flexible moulding process | Fast delivery

Individual model setups are not required – there are no model costs!
Change requests or adaptations can be accommodated without costs
Wheel crowned according to DIN 111 or camber height according to requirement
Common versions available from stock
Short term production and delivery possible

Materials

Standard: Cast iron with lamellar graphite EN-GJL-200 to EN-GJL-300 (GG-20 to GG-30), DIN EN 1561
Alternative: Nodular cast iron (EN-GJS-400 to EN-GJS-700), cast steel (GS) or welded steel design

Shaft-hub connection

Cylindrical bore, with and without keyway
Prepared for couplings, flanges, clamping sets or TaperLock bushings

Possible designs

Arm, plate or solid pulley
Reinforced versions for higher belt speeds

Balancing standards

Standard according to DIN 21940-11 in quality grade G16
Available in quality grades G6.3 or G2.5 on request

Surface treatment

Primed / black oxide finish as standard
Individual surface treatment and special painting is also possible

Why Lütgert?

Flexible moulding process without individual models and without model cost

Special designs according to individual customer specifications or drawings

Pulley geometry optimally adapted to the respective drive situation

Individual design, control, recalculation and optimization of your drive

Customised processing (drilling, grooving, surface) acc. to customer specifications

Ideal for prototypes, as well as individual or series parts

Full transparency through creation of released drawings

Documentation of residual imbalances and surface treatments

Documentation to prove material properties, balancing grades and surface treatments

Extensive stock and short-term availability of urgent spare parts

Frequently Asked Questions (FAQ)

What are the differences between belt drums and grid discs when used in bucket elevators?

Grid discs are typically used in the foot section of the elevator, as their open bar construction reduces the amount of bulk material becoming trapped, thereby minimising wear on both the bucket belt and the belt drum. Belt drums are mainly used in the head section and ensure reliable drive of the elevator belt under continuous load.

What materials are available for belt drums?

Depending on the operating conditions, belt drums are manufactured from grey cast iron, ductile cast iron, cast steel or as welded steel constructions. The choice of material depends on the load, torque, environmental factors and requirements regarding service life and maintenance intervals.

How is operational safety ensured during long running times in continuous operation?

The components are designed for 24/7 operation in conveyor systems. Optimised geometries, high-quality materials and optional dynamic balancing reduce vibrations and extend the service life of the belt and bearings.

What options are available for belt guidance and optimising the coefficient of friction?

To improve power transmission and ensure optimum belt guidance, belt drums and grid discs are generally designed with a spherical or domed profile. In addition, rubber coatings (e.g. diamond-patterned, oil- and grease-resistant or FDA-compliant) are available to prevent slippage and optimise static friction.

What design options are available for large bucket elevator systems?

For large systems, several discs can be combined on a single shaft, or reinforced versions can be used. Split designs or special flange widths are also possible to reliably accommodate high throughput rates and large centre distances.

Phone: +49 52 41 / 74 07 0
info@luetgert-antriebe.de
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