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Screw Conveyor

Features & Benefits

Versatile, robust design to bring a cost saving to your business.

Robson have a specialised dedicated team in the design and construction of Screw Conveyors. Each Conveyor is bespoke to the customer's requirements, with infinite choices for the Size, Speed, Material or Application.

Screw conveyors have a variety of uses. Variations in the flight design allow:

  • Convey
  • Mix
  • Feed
  • Elevate

Materials such as Sugar, Cement, Biomass, Effluent, Sludge Cake, Food stuffs, Animal Feed, Ash, Refuge, Glass Cullet, Granules, Limestone, Meals, Salt, Sand, Wheat and Barley.

With the bespoke construction of the screw conveyor it is possible to have multiple in feeds and a single out feed.

Made for heavy duty the Robson Screw Conveyor is robust and reliable.
Robson have the capability to fabricate not only the screw conveyor but Silos, Bunkers, Staging, Structural Steel Work and all forms of Conveyor Equipment

Robson Screw Conveyors are available ATEX rated for use in explosive atmospheres and flammable dusts.

ATEX Classification zones exist for explosive hazards like dust and fibres: -

• Zone 20 - indicates areas where explosive atmospheres containing a cloud of combustible dust will occur frequently or for extended periods.

• Zone 21 - indicates areas where explosive atmospheres containing a cloud of combustible dust will occur sometimes, but not extensively.

• Zone 22 - indicates areas where explosive atmospheres containing a cloud of combustible dust will occur infrequently or for short durations.

Size Diameter: Maximum 1500mm | Length: Maximum 12m
Incline Maximum 20º
Capacity 650 TPH
Drive Shaft mounted helical bevel | Geared motor unit
Bearings Plummer block bearing | Flanged bearings
Shaft & Spiral Plummer block bearing | Flanged bearings
Shaft & Spiral Mild steel | Stainless steel | Mild steel clad with stainless steel
Options Epoxy coated on mild steel shafts
Case Material Options Stainless steel |Mild steel |Coated to suit customer requirement
Sensors Speed switch
Optional Blockage sensor
Conveyed Materials Wet or dry bulky materials in the form of crumbs, grains, pellets, shreds, dust, powder, flake, or
crushed products of bio-matter, sludge and aggregate
ATEX Zone 20 internally - Zone 21/22 externally

Features and Benefits

Lower Maintenance Cost
Innovatively designed welded stub shafts, mild or stainless steel tubes. Up to 12m in length are free from hanger bearings.
Increased product life. Enclosed maintenance free area, significantly reducing costly downtime.
Increased Safety
Minimal external moving parts. Available ATEX certified. Fully sealed, acts as a natural baffle. Fully guarded.
Minimised dust generation and reduction of associated risks. CE marked for safety.
Guaranteed Quality
Over 100 years’ application experience. Manufactured by highly skilled technicians and welders.
Increased reliability and durability, with reduced maintenance costs.
Delivering Material Consistency
Externally mounted bearings and fully sealed options.
Zero contamination, ensuring a clean product.
Versatile Design and Commonality of Spares
Multiple design options of welded flights to allow conveying, elevating or mixing.
Commonality of spares across a range of processes.
Aftermarket Support
Call out support, 24 hour help line, maintenance support, refurbishment service and spare part inventory.
Increased product life and avoidance of costly downtime, equating to long-term cost savings.