Informa Exhibitions Ltd regrets to announce the closure of Solids & Bulk Handling magazine.

Solids & Bulk Handling magazine has been affected by the ongoing downward trend of on-the-page marketing spend. This combined with the economic pressures that the loose and solids handling industry face has ultimately led to the sad and difficult decision to cease publishing the magazine.

The November/December 2017 issue of Solids & Bulk Handling will be its last edition.


Mechanical Conveyor Choices: Everything to Consider April 20, 2017

Mechanical Conveyor Choices: Everything to Consider

Mechanical Conveyor Selection

Product Attributes

The type of product you plan on conveying is one of the biggest determining factors when considering which conveyor to choose. How would you describe your material’s characteristics - density, size, moisture content, temperature, abrasiveness of your product?

Functional Requirements and Performance

What are your desired conveying rates, capacities, layout requirements and constraints? Will your conveyor require multiple inlets or outlets, elevate material or move it through multiple planes? Do you need the conveyor to provide a variable conveying rate or be enclosed for dust prevention? How will you feed your material into the conveyor and is there a weight measurement requirement?

Operating Features

Can the conveyor handle your required conveying distance, current, and future conveying volumes? Can it be installed in your existing operation, are the installation or operating costs high? Will it operate in a sanitary environment or require explosion proof equipment? Do you require an integral bag/sack dump hopper or a mobile conveyor option?

Service Life

What is the projected work life of the operation this conveyor will serve? Some conveyors are light-duty units suitable for intermittent or short-term operation, while others are heavy-duty machines designed for continuous long-term operation. 

Long Term Energy Requirements

Consider how the conveyor’s energy use will affect its operating costs over the long term.

The Manufacturer

When selecting a conveyor, we recommend that you work with a supplier who offers several conveyor types, which will ensure they have a broad range of experience to satisfy your conveying performance needs.

Testing the Material

Ideally, the supplier will also have a test lab with conveyors of various types to help determine which one can best handle your material and operating conditions.

Performance Guarantee  

Make sure that your supplier guarantees that the conveyor will successfully transfer your material and perform reliably and cost-effectively for the long run. 

Mechanical conveyor comparison chart

The mechanical conveyor comparison chart shows how flexible screw conveyors, tubular drag conveyors, aero mechanical conveyors and pneumatic conveyors compare on all the criteria listed above.

Flexible Screw Conveyors

They are dust-free, low energy, low maintenance, and economical. They provide gentle handling and constant remixing. They are also easy to install.

Aero Mechanical Conveyors

Aero mechanical conveyors offer high conveying capacities and total batch transfer. The cable and disc assembly is driven through a totally enclosed tubular system that fluidises material at high speeds through a circuit. Aero mechanical conveyors provide a reliable means of transporting material with low energy consumption.

Tubular Drag Conveyors

Tubular drag conveyors utilise a cable and disc assembly or a chain and disc assembly. These conveyors are made of a series of straight and curved tubes or structural pipe to provide a totally enclosed system that gently pulls material between the discs through the conveying path.

Additional Questions?

Spiroflow has been in the bulk material handling industry for more than four decades. Please contact us for further information or visit our website at


Attributed: to Chris Brennan, Senior Application Engineer, Spiroflow Ltd.

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