Company: McCue Corporation
Location: Milton Keynes, UK
Web: McCue
Distribution centres and warehouses are always busy with various vehicles, equipment and heavy loads being manoeuvred. It is therefore essential to protect the structural columns within these areas to ensure a safe working environment.
The Barrel Guard is a simple to install, high-impact protection product for columns. The modular, hollow polyethylene body components provide an air-cushion that delivers very high levels of strength and durability to protect columns from impacts. The modular components of the product are adjustable to suit a wide variety of column sizes and are held together with a high-strength ratchet and strap system. The four corners of the body interlink and are created from just one rotational moulding tool.
The project brief was initially to design a lamppost protector. The company was buying in a third party product to sell to customers and there was a recognised need to create a version of the product that would eliminate these 3rd party costs and improve the design to be more robust and protective.
The initial concept designs focused on creating a modular product that could be adapted to different heights. The design used symmetrical components which meant that only one tool would be required during manufacture. It would also allow for extremely quick and simple on-site installation.
Upon review of the concepts it was realised that the modular, one tool design could be applied to a ‘column protector’.
The company was currently working on and producing a range of protection products for warehouses and distribution centres. Due to the robust design of the concept, the project was re-purposed to produce a product that could protect internal columns from high-strength impacts from vehicles such as forklifts and lollops. The design was developed to meet this criteria, using a stronger fixing method and a four corner modularity system to allow the concept to be adjustable in width as well as height for a broad variety of column sizes.
A number of concepts were developed working closely with the company’s rotational moulding supplier to understand the technical feasibility of the complex shape of the corner components. The modular corners are held together using a 50mm ratchet and strap system - this is capable of holding loads of up to 1 tonne. The design is expandable for use with column sizes from 100 x 100 to 300 x 300 - rectangular shapes can also be accommodated.
The developed concept was drawn and a rotational moulding tool was created from it. A series of FAI’s (First Article Inspection) were used to assess and correct tolerance, surface finish and shot weight issues.
Following the FAI process product samples were created using MDPE and HDPE so that the material could be tested to determine the right amount of deflection under impact. Due to the higher density, HDPE is more rigid than MDPE.
The product was tested by TUV, an international testing standards company to meet BS 6399, using a pendulum test. A 500lb pendulum was used to impact the Barrel Guard, traveling at a speed of 3ft/s. It was found that the HDPE version of the product could take a greater impact. The final result was that the Barrel Guard could withstand an impact of 900 ft-lbs without any visible damage. This translates to a 2955kg vehicle traveling at 2mph - exceeding the BS 6399 standard.
Finally, a patent was filed by McCue for this product based around it’s function and modularity. Myself and one other are named as inventors on the patent. The patent was granted.