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Double-deep pallet storage: Telescopic forks vs. Pantograph

Thursday, 19 September 2013 ( #634 )

Double-deep stacking can increase warehouse capacity by up to 30% compared to "single-deep" warehouse operations. Since telescopic forks can reach nearly twice as far as normal forks, racking can be doubled, (back to back), allowing the lift truck to access all double-deep storage locations from a single aisle.

Double-deep storage rack has become a very popular choice in "high throughput" operations as it helps maximize space utilization and improves storage density in order to help reduce operational costs.It's ideal for both Cold Store and Dry Store facilities where multiple pallets of the same products must be stored and high product turn-over rates are conducive to the FILO, (First in Last Out), principal.

Double deep stacking can be performed with a lift truck with a pantograph as well as with a lift truck with hydraulic extendable forks. Though the use of telescopic forks is preferable to using a pantograph for double-deep applications, pantographs are popular in America, while in Europe telescopic forks are generally used. The reason is most likely historical because telescopic forks are a European invention, or to be more precise, an MSE-Forks invention.
Click for larger image
Click for larger image
The photos above show similar forklift trucks but each has a different reach mechanism for double-deep storage. The one on the left is equipped with a pantograph, (scissors type), reach system while the one on the right is simply fitted with telescopic KOOI-REACHFORKS®.

Telescopic forks offer distinct advantages when compared to pantograph type reach mechanisms:
  • Lower investment cost
  • Less weight, (due to simplistic design principal)
  • Higher capacity retention, (less mass is extended with the load)
  • Do not hinder visibility for the operator, (improved safety and faster handling cycles)
  • Lower maintenance cost due to absence of rollers, bearings and hinge points
  • Simple mounting and removal, (just like standard forks)
  • Greater versatility, (can also be used as hydraulic fork extensions or for dual load transport)
  • Higher capacity range, (available up to 75,000 lbs.)
  • Do not restrict vertical rack beam spacing, (distance between rack storage levels is governed by load height & clearance only since just the forks telescope out)

Pantograph units may offer an advantage in operations where extremely thin forks are necessary, (i.e. low clearance load carriers), however, this is rarely an issue as MSE-Forks offers KOOI-REACHFORKS® in a special thin series which have a fork thickness of just 40mm/1.6". These thin forks also make it possible to handle North American GMA type pallets through the low profile side-openings.

With the introduction of Single-Range telescopic forks, handling speed, (movement in and out), is equivalent to most pantograph type units. Also, in nearly all cases, any deflection can be compensated using the standard tilt function on the lift truck.
KOOI-REACHFORKS® for double-deep pallet storage

MSE-Forks has introduced a range of hydraulic forks for warehouse trucks, reachtrucks, etc. that are ideal for double-deep pallet storage.



Telescopic forks can be fitted to most any type of forklift truck as they simply replace the original forks. There is no need to change the lift truck mast when adapting the forks as the "moment", (Force * Distance), remains the same. For example, if the truck is rated with a capacity of 2000 kg on LC 600mm, (4,400 lb. on LC 24"), and the forks telescope out to create an extended load center of 1800mm, (71"), capacity will be approximately 667kg (1,470 lb.). For more detailed information regarding the residual capacity, we welcome you to make use of our online calculation program www.msetools.com.

Telescopic forks add value in the form of increased versatility. Aside from converting conventional lift trucks into single or double-deep reach trucks, these innovative forks also allow trucks and trains to be loaded/unloaded from just one side. They can also be used to reduce internal handling costs by as much as 50% by simply transporting two loads at a time instead of just one. Their variable length ability makes them very useful as extension type forks for safely handling different load sizes and reducing product damage.

MSE-FORKS is based in The Netherlands with a wholly owned subsidiary in the USA and distributors in more than 60 countries worldwide. The company leads the world market as the largest producer of hydraulic lift truck forks more commonly known as "KOOI-REACHFORKS®" however, MSE-Forks also produces a wide range of other innovative material handling solutions including; Height Shift Systems, (vertical lift forks), telescopic Jib Crane attachments and booms as well as a complete range of pallet-less handling solutions such as ROLLERFORKS®, Push-Pulls, Stationary Pallet Changers and more, www.slip-sheet-attachments.com. The latest MSE-FORKS product to be introduced to the market is the patented FLEX-OPS, a safety enhancement for forklift trucks that helps prevent tip over accidents, www.mse-ops.com.

More information: www.telescopicforks.com


MSE Forks
St. Jacobiparochie, Netherlands
Telephone: +31 518 492929
email: send us a message
Website: www.mse-forks.com


For more company and product information visit the MSE Forks ShopFront
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