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SLAPP Clamp
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WHAT IS IT?
Safe Lightweight Adjustable Pressing Palletlifter - the SLAPP Clamp
is a safe, lightweight alternative to brick forks.
Product Demo
Below is the product demo for the SLAPP Clamp, which demonstrates how the product
can be used in a step-by-step guide. Use the '<<' and
'>>' buttons to step through the demo.
The Problem
During the installation of precast concrete
products, Beresford's Flooring Ltd experienced the daily problem of
ensuring product stability when lifting pallets of slip bricks from
delivery vehicles using site craneage.
Many sites do not have pallet forks available,
resulting in compromised standards of load stability and risks to
the health and safety of site personnel.
Standard brick forks are large and heavy, making
them awkward in use and difficult to manhandle. Precast concrete
erectors generally travel to site in vans loaded to capacity with
personnel and equipment. This prohibits the ability to carry brick
forks as a standard item of equipment.
Beresford's spent several months looking for
alternative apparatus. The main criterion in this search was to
ensure the equipment was small / lightweight and capable of lifting
1.00 tonne. This would enable transportation to site with the
erection team and ease manhandling on site and in / out of the
fixing van.
Beresford's Flooring was disappointed to
discover there was nothing available. Chris Massey (Beresford's
Flooring Ltd MD) decided to use the company's thirty years of
lifting experience to develop a new lifting device to suit its
needs. After 18 months and the evolution of many prototypes, the
SLAPP Clamp was born.
Our Solution
The SLAPP Clamp started life as just a steel box
section "H lifting beam" with a chain attached to the end of each of
the four legs. This worked well until the pallet being lifted was
either badly or unevenly stacked, making the load unstable. After
many trials and design amendments, the self clamping mechanism was
developed. Still using the original "H lifting beam" with the chains
on each leg, a separate "U" section was introduced, with chain
shorteners permanently attached via sprung blocks on the newly
introduced inner section.
The process of lifting the load is simple (see
the Product Demo above for a step-by-step guide):
-
Slide the lightweight tines through the
pallet and lower / lift the SLAPP Clamp on top of the load.
-
Connect the four chain hooks to the tines
and shorten the chains as tight as possible using the adjuster
clutch. The chains should be equal in length and this has been
made easier by colour coding the chain links.
-
The load can now be lifted and because the
weight is being transferred through the clutch, the "U" Section
is pulled down on top of the load. This securely clamps the item
being lifted, compressing the materials into position.
Key Features of the SLAPP Clamp
Roll your mouse over the links below to view
'pop up' images illustrating the features of the SLAPP Clamp.
Here is more information about the key features
of the SLAPP Clamp:
-
Safe Working Load of 1.5 Tonnes.
-
The "H" section is 1200mm long, so can
accommodate all "Euro" and "Standard" pallets.
-
Additional hook attachments on tines to suit
"Euro" and "Standard" pallets Serrated tines to ease insertion
through wrapped pallets.
-
The chains can be adjusted to suit all
depths to a maximum of 1100mm.
-
Colour coded chain links to ensure equal leg
length.
-
Securely clamps down on the item being
lifted, ensuring load stability.
-
The amount of compression transferred
through the "U" section onto the top of the load can be adjusted
by moving the shortening clutch along the "U" arm.
-
Hooks have been provided into the sides of
the H section to accommodate a safety net.
-
When not in use, the inner "U" section
springs back inside the outer "H" section making the whole clamp
only 6" wide ensuring ease of storage.
-
Four carry handles provided into the top of
the clamp to ease manhandling.
-
Compact lightweight design ensures ease of
transportation / storage.
-
Reduced overall lift weight increases safety
factor for any given radius.
Customer Feedback
The logistics of organising delivery /
collection of brick forks to sites around the country has proved
extremely problematic. Each erection team can now easily carry a
SLAPP Clamp in their van, ensuring the safe unloading of palletised
materials.
The SLAPP Clamp was invented primarily to solve
a Beresford's problem. The interest generated on site since its
introduction has convinced us that the product should be offered
throughout the construction industry.
Tower crane drivers have been particularly
enthusiastic, stating that the lightweight nature of the product
would enable heavier loads to be lifted at full radius (the SLAPP
Clamp weighs 60 kg compared to over 200kg for conventional brick
forks). Other feedback has reported that the SLAPP Clamp is easier
to position on loads stacked on uneven ground, as you do not have to
try and twist forks into place. One Site Manager even borrowed a
SLAPP Clamp to move mortar tubs, as the clamping action made the
lifting process both safer and faster.