Leonhardt - Leonhardt Stainless hopper and twin screw feeder

Applications & Use Cases

• Feeding bulk dry ingredients like flour, sugar, or spices into mixers or processing lines.
• Transferring granular products such as grains, coffee beans, or pet food kibble.
• Dosing precise amounts of powders or small particulates in blending operations.
• Handling sticky or cohesive materials that benefit from positive displacement feeding.

Typical Specifications

Typical capacity

Hoppers for this class of equipment commonly range from 100kg to 500kg, with this unit specified at 150kg.

Power supply

Units of this type typically require a 3-phase electrical supply, commonly 400V, 50Hz in the UK.

Material of construction

For food processing applications, stainless steel (e.g., 304 or 316 grade) is standard for all product contact parts.

Feeder type

Twin screw feeders are effective for materials that might bridge or compact in a single screw system, offering improved flow control.

Discharge height

The discharge height of 1750mm suggests suitability for feeding into elevated processing equipment or bulk bags.

Footprint

The overall footprint will depend on the hopper design and motor placement, but units of this capacity are generally compact.

Frequently Asked Questions

• What types of materials are best suited for a twin screw feeder?

  Twin screw feeders are particularly effective for cohesive, sticky, or poorly flowing powders and granular materials, as the twin screws help to break up bridges and ensure consistent discharge.

• How important is the discharge height?

• What maintenance is typically required for a hopper and screw feeder?

• Can this unit handle abrasive products?

• Is this unit suitable for outdoor use?