Products & applications Loading bays & doors Bespoke loading bays provide efficient solution for DHL
Stertil Stokvis has designed a special loading bay solution to help logistics giant DHL transport catering trolleys to and from aircraft at London’s Heathrow airport. The £500,000 project required the company to design a bespoke solution to improve the ease and efficiency of the operation which is undertaken at DHL’s Colnbrook facility near Slough. The first challenge was accommodating the special vehi- cles used to transport the trolleys, which feature adjustable-height bodies and off-centre rear doors. To meet this requirement, Stertil Stokvis adapted the design of its S type dock levellers by incorporating a special 1,500mm-wide hinged lip on the dock leveller which is similarly off-set. Due to the small size of the trolley wheels, it was important that all transition platforms were smooth and any gaps between different surfaces were minimal. Within the goods in section of the facility, the installa- tion of eight S type dock levellers serve a specially-con- structed mezzanine dock. A corresponding series of seven scissor lifts is then used to lower delivered catering trol- leys down to ground level for washing and re-filling with
new loads. Significantly, the construction of the equip- ment needed to be especially strong to withstand constant heavy use, so Stertil Stokvis decided to use extra-thick box section and sheeting on its scissor lift handrails. The re-filled trolleys are then transported to the despatch
area for onward delivery to Heathrow airport. At this stage in the cycle, Stertil Stokvis had to overcome problems caused by an existing dock height that is significantly lower than the
bed height of DHL’s special vehicles. The novel solution is an installation of another 10 S type dock levellers that, again, incorporate off-set hinged lips but also feature 4,500mm long platforms which provide a shallow slope to simplify manual loading of the wheeled catering trolleys. The special ‘cross traffic support legs’ incorporated into the design of Stertil Stokvis dock levellers make this construc- tion very stable and inherently safe. “We needed a bespoke solution for our particular appli- cation,” explains Warren Cobb, DHL’s Deputy Vice President, Construction. “Following detailed evaluation of our requirements, Stertil Stokvis provided us with a working solution with free trial equipment and delivered everything they promised. Their flexible and partnering approach helped things run particularly smoothly. The finished project saw nine scissor lifts, 18 hinge lip dock levellers, 20 inflatable dock seals, 20 insulated Thermadoors and five high-speed RapidRoll doors installed. Stertil UK
www.stertiluk.com Thermal efficiency drives new product development
With energy costs escalating, attention has never been more focused on insulation and thermal efficiency. For all loading bays, options that were previously only considered for cold stores are proving to be cost effective options with the energy savings they provide. ThermoFrame from Hörmann can improve the thermal efficiency of sectional loading bay doors by providing a thermal break between the door frame and the fabric of the building. When ThermoFrame is fitted with the Hörmann SPU insulated loading bay door the com- pany claims a 20 per cent improvement in thermal insulation can be achieved. It is also said that an even more impressive 40 per cent
improvement is possible when fitted with the new UPVC locating and lintel profiles available with the double insulated DPU sectional door. The success of the SPU sectional door, that features 42mm thick CFC free rigid PU foam insulation, has lead to the development of a new insulated version of Hörmann’s High Speed Spiral Door. This door the HS7030PU replaces the traditional two door solution of a high speed cur- tain for daytime use and a sectional outer door or roller shutter for night time security. The original version of this door was selected by Asda for its Didcot distribution centre and was estimated, by independent con- sultants, to provide savings that would recover their cost within two years.
Designed from scratch, the new door leaf incorporates 42mm thick insulation which also gives strength as well as improved thermal and acoustic insulation. Connecting hinges between sections are another new Hörmann design feature that add stability leading to increased reliability and a longer service life. These latest products are further examples of Hörmann’s commitment to new product development to meet the changing needs of its customers Hörmann
T: 01530 513000
www.hormann.co.uk Enter 366 Loading bay doors help to reduce energy costs
In the current climate of increasing energy costs and decreasing budgets, maintenance and procurement man- agers need to search out the most efficient tech- nologies. Often over-
looked, door technology can play an important role in reducing the overall costs of many industrial locations including warehouses, storage cellars and loading areas. sara LBS works with customers, from the design stage onwards, to help specify a suitable door solution, as well as identify likely life costs to help plan on-going maintenance. To combat rising energy costs a number of brew- eries in the UK have built naturally cooled distribu-
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tion centres for storing their products. They use low carbon insulations and natural cooling, including a living sedum roof, to eliminate the need for electri- cal cooling systems. They are so successful that the correct room temperature is maintained without the use of any electrical chillers. This cooling system only works with adequate isolation from outside air temperatures, making the door’s thermal efficiency of utmost importance.
Inefficient door systems are notoriously damaging to controlled environments. sara understands this need and, in the case of the ‘eco-breweries’, designed a bespoke two door sequential locking system; using two low-energy, high speed doors the system ensures one door is always closed. sara Loading Bay Specialists
www.saralbs.co.uk
T: 01442 245577 Enter 368
SEPTEMBER 2011 Materials Handling & Logistics
T: 0870 770 0471 Enter 365
Raising the bar for scissor lift safety sara LBS’ new range of scissor lift tables
conform to the highest safety standards in a wide range of applications. Constructed from steel for strength, the lifts have a maximum load of up to 12 tonnes as standard and include a num- ber of safety features including a ‘dead- man’ safety switch and safety trip edge. The sara LBS scissor lift is suitable for a wide range of applications requiring load transfer between different levels. The lifts, which are all designed to exceed the BS EN 1570:1998 + A2 2009 safety requirements for lifting tables, can be easily custom designed by sara engineers to provide unique solutions for specific requirements. One of the many features included is the safety trip edge; designed to detect any possible obstructions and stop the lift immediately during descent. Other features include a ‘dead-man’ fail safe which stops the lift in the event of the control button being released and the option of a smooth or non-skid plat- form top.
All scissor lifts are constructed using steel for the frames and scissor arms to maximise strength. sara Loading Bay Specialists T: 01442 245577
www.saralbs.co.uk Enter 367
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