09.07.2015
103ft narrow electric
Holland Lift has released its highest narrow aisle electric scissor lift to date, the 1.4 metre wide, HL-330 E14 4WDS/N which boasts a working height of 33 metres.
The new battery powered lift, announced earlier this year, in Cranes & Access magazine has a 600kg platform capacity, with indoor and outdoor rating and can drive at full height. The two metre deck extension creates a massive 8.4 metre long platform when extended. Four wheel drive and steer is standard, as is an automatic lubrication system. The machine weighs 24 tonnes.
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The new Holland Lift HL E14 4WDS-N boasts a working height of 33 metres
The new lift will make its first public appearance at Platformers Days and Verticaaldagen in September. The first units have been sold to Wiesecker Werkzeugvermietung, while another has, we understand been purchased by Austrian crane and heavy transport company Felbermayr.
Managing director Eline Oudenbroek said: “We continue to elevate the standard with the introduction of the HL-330. We can offer our clients an even broader scope of solutions, matching a whole host of working conditions, with this unique narrow aisle scissor lift.”
German sales manager Johannes Becker added: “The demand for this high reach, narrow and stable scissor lift is high, due to the large warehouses all over Europe spurred on by the exponential growth of online shopping and the need to have logistics facilities close to the market. They need better solutions and Holland Lift can offer that!”
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The HL E14 4WDS-N weighs 24 tonnes
Eline Oudenbroek
Dear Mr. Ponsonby,
Thank you for pointing out your concerns to me about the safety of our 103 ft narrow electric scissor. I can imagine that a scissor lift with these dimensions looks amazing, but your calculation does not quite match the technical reality of this machine.
Needless to say, the CE approved HL-330 has been thoroughly tested, risk assessed and calculations checked in detail, by TÜV-Nord to provide a third party verification to double check our own tests. They also confirm of course that it meets or exceeds all necessary safety standards for stability and use, standards and directives that have been established by leading experts and engineers in the field over many years, including leading safety and accident inspection experts from a number of countries with an in depth knowledge of aerial lift safety and stability.
As with all of our machines it also has a wide range of safety systems built-in that guarantee safe driving at full height when used inside. Clearly, for outside use at full height the machine must be used on its outriggers, and does not therefore drive at height.
In addition to the automatic systems built into the machines, this scissor lift should only be used by properly trained operators as is stated clearly in the manuals.
Holland Lift is known over 30 years for its very high safety standards, stability at great height and robust design, and you will be most welcome to visit our factory to see this first hand.
Best regards,
Eline Oudenbroek
Managing Director Holland Lift International BV
Crane Safety Specialist has asked me to calculate the Centre of Gravity (CoG or Mass) to substantiate my assertion below. Therefore as my Learned Friend Michael Hayden (d) would say “ thats not an easy as it may seem, due to the variety of infinitely variable factors” : Such as location of 600 Kgs Payload, the Variable Loading Positions Left, Right and Centre of this 600 Kgs Payload and Two separate Deck Extension(s) of 1m each, all of which can be variously extended or retracted to make platform 6.4, 7.4 or 8.4 metres long overall. These factors moves the Horizontal CoG (Mass) Left or Right depending on which Extension is extended and Position of 600 kgs payload.
Therefore for Safety Reasons lets take the Worst Case Scenario, all of which involves eight separate Mathematical Calculations on three separate parts of Base, Mast and Platform. All of which makes this HL330/N Aerial Work Platform 33 metres High and only 1.4 metre wide at the Ballasted Base.
a) The 600 Kgs Payload is likely to be Human and given 150 Kgs per person, this means Four Persons in Platform 33 metres ( or 103 foot in UK & USA) sitting on a base only 1.4 metres wide at Ground Level.
b) Therefore if Four Persons (4) of 600 kgs are standing on Centre Line (CL) of Platform then CoG is central to Scissor Mast below. However if all Four Persons Work on Left Platform Extension, then CoG is 4.2 metres left of CL of 8.4m long platform. Ditto to the Right : Moreover if all Four Walk (or worse still Run) to the Right, then Kinetic Energy Forces will also apply to de-stabilise this AWP ?
c) The calculated vertical CoG in static mode is circa 9.7 Metres above Ground Level, but given the Infinitely variable factors above, the ever-changing Horizontal CoG (mass) becomes incalculable due to variables of 600 Kgs Payload and 2m Platform Extensions.
d) All of which also has a negative affect on the Tm2 Loading on the Four Rubber Tyres fitted . Therefore if used outdoors on level ground, Steel Mats of 2.88 M2 or bigger would be required under each of the four outriggers.
e) Moreover if used outdoors, the Wind would also have a negative impact on the stability of HL33/N machine, due to Wind Speed, Gusts and the 'Sail Area' of Platform Sides and Ends.
If the HL330/N were involved in a Fatal Incident in UK, then the Employer could see Criminal Charges including but not limited to The Corporate Manslaughter Act 2007. The Prosecution Barrister may also use mathematical calculations like those above, to try and prove that the HL330/N was not a ’Safe System of Work’ ( the common Law obligation in UK) and that the injury(s) were a breach of sections 2(1) or 3(1) of The HSW etc Act 1974.
Worker Safety is my core value, please make it the same for all.
Kind Regards
Mike Ponsonby
FAO Eline Oudenbroek, Managing Director.
Good Afternoon Ms Oudenbroek,
Your Press release on the new Model HL 330 E14WDS/N Aerial Work Platform caught my attention, expressly the remark that it can be “ Can Be Driven Fully Extended at 33 Metres” (or 103 feet in UK & USA) and that the HL 330 Machine “ Can Be Used Indoors or Outside". This prompted me to do some research and your Specification Sheet was my start point. Therefore….
a) The HL 330 has a Width of 1.4 Metres and a Wheelbase of 4.99 metres, thus giving a ‘Footprint’ of 6.99 square metres. The Overall Height is stated as 33 metres, thus giving a Height-to-Width-Ratio of circa 23.5 to One.
b) By Comparison, a modern Jaguar Car is 0.7 to One, all of which makes modern Cars very stable under most circumstances.
c) Unladen weight of HL330 is stated as 24 Tonnes and as its fitted with Four Wheels, means 12t per axle and 6t per Tyre. The Tyre size is not-stated on the spec sheet but can be scaled as circa 17 cm wide with a footprint of circa 170 Square CM. This means that the TM2 Loading on each Tyre is circa 7.02 Tm2.
Therefore bearing in mind that Fifty Two (52) Persons have Been Killed by Cranes and/or Lifting Operations Worldwide since 1st Jan 2015, It is my submission to Holland Lift that the HL 330 Aerial Work Platform is Top Heavy, with an Abnormally High Centre of Gravity (Mass) : especially if used outdoors.
In conclusion, may I suggest that your company undertakes a suitable and sufficient Risk Assessment on this HL 330/n Machine, then introduces additional control measures to radically improve Stability.
Worker Safety is very important to me, so please do not wait for the first Incident, as by then it will be too late for the Victim(s) ?
Kindest Regards
Mike Ponsonby
Drive at full height? Blimey!! I know someone who loves a new shiny machine!!! Soooo this comes under a 3A right? Interesting applications await!!