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DISCUSSION FORUMS : Forkliftaction.communicate
Forum: Safety, training & legislation
Discussion:  new ce specification plate
Number of messages: 3

START MESSAGE:
shamus
Oxfordshire, United Kingdom
I recently came across a 2010 Nissan 15 CB
The specplate stated a 7mtr lift Load centers 500 600 700
Capacity 500kg 450 kg and 400 kg
I assume these were the lift height up to 7meters
It did not state the capacity at ground level or eye level
Contacted technical personnell to be told this is the new plate and the information we have had concerning lift heights in the past is no longer stated
How do you teach a novice on this new spec plate training bodies or manufactures not forthcoming
Any body got the latest info


Posted 15 Nov 2011 10:12 PM Reply  Report this message
REPLIES: Sort replies by
budcoh
Ohio, United States
  Shamus:  I don't know the answer to your question but have a similar one.  Does anyone know either an ANSI or OSHA regulation (guideline) that addresses derating the forklift's capacity when handling loads that have a center of gravity vertically higher the 24 inches (610 mm)?

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DIRTFT -- (an acronymn for do it right the first time)

Posted 25 Nov 2011 07:30 AM Reply  Report this message
edward_t
South Carolina, United States

budcoh, this information is not a simple formula, but for the USA, you can find the design criteria about forklifts (that is included in ANSI and OSHA regs by referring to them) in the standards at the web site of the "Industrial Truck Standards Development Foundation" which is "itsdf.com".    
To be sure you were within legal standards should an accident or injury happen, the manufacturer of each truck would have to provide you with 'de-rate' information about that truck and it's added attachments.
I have often seen (for the standard 3 to 5k truck) a "quick and dirty" guesstamate of about 100 to 150 pounds per inch away from the face of the forks to the loads center of gravity, as the de-rate.  
The load center is calculated from the face of the forks, (both vertical and horizontal equally), so don't bother looking for a center of gravity vertically higher the 24 inches (610 mm)?  But keeping the center of gravity of the whole load and attachments within the stability pyramid remains the goal.

To answer Shamus' question, without seeing the plate in question, it is a bit difficult to be positive as to how to teach this info, but as I understand it: "7mtr lift Load centers 500 600 700, (respective of) Capacity 500kg 450 kg and 400 kg" (implies a "respective of), if your load center is 500 centimeters from the face of the forks, you can safely lift 500kg to a height of 7 meter, if your load center is 600 centimeters from the face of the forks, you can safely lift only 450 kg to 7 meters, and if your load's center of gravity is 700 centimeters from the face of the forks, you can only lift 400KG to 7 meters.  Of course this would change if an attachment had been added to the standard mast and carriage the unit had been first delivered with.

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webhome = http://forktechs.com
"it's not rocket surgery"


Modified 26 Nov 2011 00:18 AM
by poster.
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