A swing-lip dock leveller is a hydraulic ramp set into a pit at the dock edge, with a hinged steel lip along its front. When a trailer is docked the platform rises, the lip swings out, and the platform lowers until the lip rests on the trailer bed, forming a bridge for forklifts and pallet trucks. The lip is typically about 400 to 500 mm long.
Is this right for your site in County Londonderry?
Should a recent insurance inspection at a site in County Londonderry have flagged leveller defects, a survey can show whether repair or replacement makes more sense. Ageing levellers in older docks around County Londonderry can often be replaced like for like in the existing pit, avoiding new concrete work if the pit is sound.
Mixed bays at a site in County Londonderry, where some trailers have tail lifts and others do not, may suit a combination of swing-lip and telescopic levellers.
Before anything is ordered, we visit your site in County Londonderry for a free survey and then send a written quote with a fixed price. From that point we manage the installation, coordinating delivery, access and any other trades. Fitting is done by specialist installation engineers engaged and managed by us, at times that suit your operation, including out of hours where agreed. You get a tested installation, a demonstration for your team and the manufacturer documentation.
How long should a dock leveller platform be?
A leveller platform should be long enough to keep the slope gentle across the full range of trailer heights you load, because the steepest gradient decides which handling equipment can use it safely. A longer platform spreads the same height difference over a greater distance.
- Know your trailer mix: with a dock typically around 1,200 mm high and trailer beds ranging from roughly 900 to 1,600 mm, the height difference can be considerable.
- Check your equipment: low-clearance electric pallet trucks cope with less gradient than a counterbalance forklift with good ground clearance.
- Common lengths: platforms are commonly made from around 2 to 3.5 m long, with longer units where trailers sit very low or very high.
- Width: a wider platform gives more room when pallets sit close to the trailer sides.
When replacing a unit, the pit size limits what can be fitted, so we measure the pit and record your trailer heights at survey before recommending a length.
Do dock levellers have to be inspected by law?
Yes, dock levellers are work equipment and must be kept in a safe condition and inspected where deterioration could lead to danger. The law and the regulator depend on where the site is.
- Great Britain: the Provision and Use of Work Equipment Regulations 1998 (PUWER), enforced by HSE.
- Northern Ireland: PUWER (Northern Ireland) 1999, enforced by HSENI.
- Inspection interval: engineering insurers commonly inspect dock levellers under PUWER at 12-month intervals.
- LOLER: most levellers are treated as work equipment under PUWER, but one designed or used to lift people may fall under LOLER, or LOLER (Northern Ireland) 1999, with 6-monthly thorough examination. It depends on the equipment and how it is used; your insurer or competent person will confirm.
- Standard: BS EN 1398:2009 sets the safety requirements for dock levellers. It is current and under review.
Our inspection guide explains what an examiner looks at.
Towns we cover in County Londonderry
Find your town in the list below for details of swing-lip dock levellers across County Londonderry, or contact us if your location is not shown.
Budget range for supply and fit. The written quote after a free survey is the fixed price. All guide prices.
Planning, building control and safety law in Northern Ireland
Workplace safety in Northern Ireland is regulated by HSENI rather than HSE. Loading bay doors in County Londonderry need to meet the Workplace (Health, Safety and Welfare) Regulations (Northern Ireland) 1993, and we check what applies at survey, including the measures that stop vehicles leaving the dock too early.
Questions
Which building and safety rules apply to a site in County Londonderry?
It depends on which UK nation the site is in. England and Wales use Building Regulations approval, Scotland uses building warrants and Northern Ireland uses building control approval from the council. Workplace safety is regulated by HSE in Great Britain and HSENI in Northern Ireland, and energy rules differ between nations. For your site in County Londonderry, we check what applies at survey and design to it.
Is the site survey in County Londonderry free?
Yes. For new installations, replacements, upgrades, conversions and complete bays, the site survey and written quote are free and come with no obligation. The survey lets us measure the openings, check the dock and structure, and understand how the bay is used, so the quote reflects your site. Repair and servicing visits are different: they are chargeable, with the price agreed before anyone attends.
What happens if a trailer pulls away with the lip on its bed?
The platform drops until its safety system stops it. Hydraulic levellers have a velocity fuse that arrests the fall, but the event can still damage the leveller and endanger anyone on it, which is why dock traffic lights, restraints and key control are used to prevent early drive-away.
Can a new leveller fit our old pit?
Usually, yes. Levellers are made in standard sizes and many can be supplied to suit an existing pit, but the pit must be square, sound and deep enough. We measure the pit and check the edge steel at survey, and if adjustment or repair is needed we price it separately.
Other services in County Londonderry
Full guide to swing-lip dock levellers · All loading bay services in County Londonderry