Welcome Guest! The IOSH forums are a free resource to both members and non-members. Login or register to use them

Postings made by forum users are personal opinions. IOSH is not responsible for the content or accuracy of any of the information contained in forum postings. Please carefully consider any advice you receive.

Notification

Icon
Error

Options
Go to last post Go to first unread
stonecold  
#1 Posted : 18 August 2014 09:28:09(UTC)
Rank: Super forum user
stonecold

Hi


We have some large single bay pallet racking in one of our warehouses. We recently had a delivery of goods on over sized pallets. When these pallets where placed in the racking bays one side of the pallet over hangs the racking by a fair few inches so the corner wooden support blocks of the pallet are not properly supported by the racking. This over hang is causing the pallet to smile (bend slightly). I know this is bad practice, but cant find any technical guidance that covers over hanging or smiling pallets...I need a clear technical explanation of why over hanging and smiling pallets are hazardous..

can anyone help?
JJ Proudbody  
#2 Posted : 18 August 2014 09:49:59(UTC)
Rank: Forum user
JJ Proudbody

Beacuse part of the pallet is no supporting the load properly? Tansfer the imposed load into the racking stuctural members. Hence it is bending.

Obviousl it will fail if sufficiently oveloaded/unsupported - then I guess the goods on the pallet will fall off?

Is it anymore complicated than that?
Roundtuit  
#3 Posted : 18 August 2014 10:00:22(UTC)
Rank: Super forum user
Roundtuit

Smiling pallets indicate the material of pallet construction is being flexed by the load supported between the contact points of the racking - Place a ruler (wooden or plastic) across a gap then start to push in the middle, the ruler smiles and can eventually give way

The scenario described indicates the load and storage method were not considered when selecting the pallet - pallets not considered for return (e.g. CHEP) and therefore of suitable construction for a wide range of duties invariably end up chosen by price so tend to be the absolute minimum duty and typically assume floor storage or racking with supports between the load bearing members.

Issues that can occur include:
1) the pallet failing (generally at a weak point in its construction e.g. a timber knot) shedding its load
2) difficulty in the use of handling equipment to safely pick the load from the racking either necessitating multiple incremental movements, or forcing the forks under the load by pushing the pallet against (hopefully) some form of stop e.g. a wall behind the racking
3) The pallet being nudged from its support causing the load to collapse due to a glancing blow from passing vehicles against the overhanging portion

If this is a regular shipment the purchaser needs to raise delivery method with your supplier, if it is a one off I would have the load placed on the floor.
Roundtuit  
#4 Posted : 18 August 2014 10:00:22(UTC)
Rank: Super forum user
Roundtuit

Smiling pallets indicate the material of pallet construction is being flexed by the load supported between the contact points of the racking - Place a ruler (wooden or plastic) across a gap then start to push in the middle, the ruler smiles and can eventually give way

The scenario described indicates the load and storage method were not considered when selecting the pallet - pallets not considered for return (e.g. CHEP) and therefore of suitable construction for a wide range of duties invariably end up chosen by price so tend to be the absolute minimum duty and typically assume floor storage or racking with supports between the load bearing members.

Issues that can occur include:
1) the pallet failing (generally at a weak point in its construction e.g. a timber knot) shedding its load
2) difficulty in the use of handling equipment to safely pick the load from the racking either necessitating multiple incremental movements, or forcing the forks under the load by pushing the pallet against (hopefully) some form of stop e.g. a wall behind the racking
3) The pallet being nudged from its support causing the load to collapse due to a glancing blow from passing vehicles against the overhanging portion

If this is a regular shipment the purchaser needs to raise delivery method with your supplier, if it is a one off I would have the load placed on the floor.
stonecold  
#5 Posted : 18 August 2014 10:06:52(UTC)
Rank: Super forum user
stonecold

Roundtuit...Thanks very much, your reply was very helpful
IanDakin  
#6 Posted : 18 August 2014 10:34:25(UTC)
Rank: Super forum user
IanDakin

Hi

The HSE has several references for guidance on these matters.
Here is a link to the best one.
http://www.hse.gov.uk/pubns/priced/hsg76.pdf

But, the general rules for pallets in racking is
The pallet should be in good condition, suitable for the load and the racking (undamaged and it need to fit with the blocks on the beam).
Goods must be secured to the pallet - banding or shrink wrap.

It would be a good idea to get a buyers agreement on size and quality of pallets.
grim72  
#7 Posted : 18 August 2014 11:37:39(UTC)
Rank: Super forum user
grim72

You might fiond some useful info from SEMA (http://www.sema.org.uk) who cover guidance on pallet racking etc. You may also want to consider introducing a regime of checking your racking on a routine basis - I will send you a PM with some info that might be of interest.
firesafety101  
#8 Posted : 18 August 2014 16:26:30(UTC)
Rank: Super forum user
firesafety101

stonecold wrote:
Roundtuit...Thanks very much, your reply was very helpful



Helpful? I thought it was brilliant :)
Users browsing this topic
Guest
You cannot post new topics in this forum.
You cannot reply to topics in this forum.
You cannot delete your posts in this forum.
You cannot edit your posts in this forum.
You cannot create polls in this forum.
You cannot vote in polls in this forum.