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SpiroflowCableflow Cable Drag Conveyors

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Cable drag conveyors are designed for gentle handling and installations requiring conveying in multiple planes. They can transfer fragile bulk products from single or multiple in-feed points to single or multiple discharge points over long distances with little or no damage. Cableflow Tubular Cable Drag Conveyors are a further development of our best in class Aeroflow aero mechanical conveyors operating with reduced clearances and at reduced running speeds. Cableflow conveyors are designed for gentle material handling and for conveying in multiple planes. They can provide complete material batch transfer of bulk products from single or multiple in-feed points to single or multiple discharge points with little or no damage.

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Cableflow conveyors are offered with our optional Dynamic Automatic Cable Tensioning system. This patented cable tensioning system maximizes cable life and minimizes maintenance – a key advantage over other cable driven conveyors in the industry.

Cable discs are manufactured from USDA accepted polyurethane and are suitable for temperatures up to 176°F/ 80°C.

  • Minimize waste with gentle handling of fragile materials & maintain blends.
  • Optimize use of plant ‘real estate’ with layout versatility – complex 3 plane circuits, mobile designs.
  • Maximize processing efficiency with multiple inlets & multiple outlets of dry, moist or wet materials.
  • Maintain plant safety & cleanliness with dust-free, contamination-free, totally enclosed conveying.
  • Maximize ROI with fast, efficient conveying capacities up to 11 ft3/min/ .31m3/min, low energy consumption, long cable life & 24/7/365 reliability without filters or cyclones.

Cableflow cable drag conveyors were developed from our tried and tested aero mechanical conveyors – operating with reduced clearances and at reduced running speeds.  They are designed for gentle handling and installations requiring conveying in multiple planes.  They can transfer fragile bulk products from single or multiple in-feed points to single or multiple discharge points over long distances with little or no damage.

How it Works

A continuous loop of cable or chain with discs spaced along its length is pulled by a motor driven sprocket within an enclosed tube. Changes in direction are facilitated by bends in the tubing or by corner housings with drive or idler sprockets for tighter radii. Discharge of the product is through either tube outlets or housing outlet boxes. The cable is routed back to the in-feed point in an endless loop.

Benefits
Gentle Product Handling & Maintaining Blends

Material is fed into the pockets formed between the discs within the conveying tube. The cable and discs gently move through the enclosed circuit pulling the material along until it reaches the outlet.  This type of gentle conveying action minimizes product degradation and also maintains blends.

24/7/365 Reliability

As a worldwide industry leader in mechanical conveying, Spiroflow is unique in that we offer three types of tubular drag conveyors – Cableflow cable drag conveyors as well as Chainflow and Dynaflow drag chain conveyors.   Our engineers take the time to carefully assess your application needs so that, with proper tensioning, you can count on your conveyor to run 24/7/365.

Multiple Inlets & Outlets

The conveyor can accommodate applications with multiple outlets so that one conveyor can deliver material to multiple points.  Multiple inlets are possible as long as only one is operational at a time.

Dry, Moist or Wet Materials

Tubular drag conveyors can transfer hot, cold, wet, dry, hygroscopic or temperature sensitive materials.

No Filters or Cyclones

With tubular drag conveyors, no additional air is added to convey material so there is no excess air at the outlet to filter for dust.  Any material that is not ejected at the outlet is simply carried around the enclosed system until it is ejected at the next outlet.

Long Cable Life

All cables used in our cable assembly are constructed from MIL-spec aircraft quality steel cable. The cable assembly is a multi-strand steel cable with single piece polyurethane discs molded onto the cable for safe food contact. With proper tensioning end users can expect a long cable life.

Totally Enclosed, Dust-free, Contamination-free Handling

All conveying takes place in a totally sealed tubular system which ensures the dust-free transfer of material.

Operates in Multiple Planes

Tubular drag conveyors are the only conveyors that can operate in three (3) planes.  This layout flexibility enables our engineers to design complex circuits which eliminates transfer points while using a single drive.

Low Energy Consumption

No matter how great the volume is tubular drag conveyors are very energy efficient especially when compared to pneumatic conveying systems.  Users benefit by their minimal power requirements and associated energy savings.

APPLICATION SUITABILITY

  • Price: Almost always less costly than an AMC, rigid screw or pneumatic conveyor
  • Layout Constraints
  • of a single conveyor: Typically up to 39 ft / 12m but depends on product density & screw speed
  • Multiple units can span greater distances
  • One bend only
  • Maintenance: Low maintenance
  • Wear only a consideration with abrasive products or if tube is excessively bent
  • Recommended minimum bend radii should be observed
  • Installation Costs: Low
  • Energy Consumption: Medium energy consumption
  • Dust Control/Air Displacement: Conveyor is mechanically dust tight
  • No systems filters required
  • Residual Material: Not 100% self-emptying
  • Can easily be emptied by running in reverse
  • Degradation: Less than might be expected
  • Moderate shear stresses produced by screw against tube
  • Degradation tends not be a problem w/ most granular products like sugar
  • Fragile Products: Recommend material test
  • Maintaining Blends: Depends on densities & material characteristics of materials in blend
  • Hygroscopic Materials: Recommend material test
  • Moist Materials: Not suitable
  • Cohesive Materials: Recommend material test
  • Proscrew
  • Hot Materials: Very good
  • With steel tubes handles material temps up to 300°F / 149°C
  • Sludge: Not suitable
  • Slurries: Not suitable
  • Fine Particles: Very fine particles that fluidize readily may require a flat spiral
  • In some cases, a center core may also be needed
  • Running Empty: Cannot be run empty for extended periods without excessive noise & wear
  • Starting & Stopping: Can be started & stopped under load