review
102
PIPELINE
MACHINERY
Sawyer MFG, USA
For many years the Sawyer brand
has been synonymous with pipeline
product development, and 2014 is
proving to be no exception. A new range
of clamps, both standard and ultra, is
being developed to take on some of the
toughest reforming jobs in the industry. The
Rim Clamp and Ultra Rim Clamp are being
introduced into Sawyer’s superior range of
pipeline and welding equipment. The Rim
Clamp series provides a viable alternative
to the Double Chain Clamp for customers
who prefer a clamp with a rigid shell.
Both Sawyer Rim Clamps are designed
for use on out-of-round pipes which require
a high level of accuracy in their alignment.
Each clamp is available in a range of sizes to
accommodate pipe sizes from 4 - 72 in.
The Rim Clamp is ideal for tough
reforming jobs and is capable of reforming
X45 Schedule 80 pipe with out-of-round
conditions up to 2 in. Pressure is applied by
heavy duty jackscrews to precisely reform
the pipe. This rigid clamp is extremely
accurate and provides precise alignment
capabilities.
The Ultra Rim Clamp is a heftier clamp,
built to reform high tensile strength
pipe with out-of-round conditions up
to 2.25 in. Modern materials allow this
clamp to be lighter and stronger than its
predecessors. The component parts of the
clamp have been improved to provide
a better finish and accuracy. Proper
pre-treatment and powder coat finish on the clamp results
in corrosion resistance. The Ultra Rim Clamp offers more
extreme reclaiming capability, readily reforming high tensile
pipe, X65 and above with up to 1 in. wall thickness.
The multiple jackscrews on the clamp give the
operator the ability to apply precise reforming pressure
on the exact areas of pipe which are most in need of it.
The specialised torque wrench supplied with the Ultra Rim
Clamp furthers this capability by allowing the operator
to set the exact torque required for the reforming
application. This allows the operator to save time and
effort by setting the perimeter of the jackscrews before it
is placed on the pipe.
The hinged flip-up jackbars on the Ultra Rim Clamp
allow for simple pipe mating, and also ensure that the
clamps can be used for
applications which require
100% weld and/or grinding
without removing the clamp.
Each heavy duty jackbar
also comes with a pivot
pad, which allows for use
on coated or uneven pipe
surfaces. The pivot points
of the clamp are made
from stainless steel so one
clamp will work for all pipe
applications, eliminating
the potential for pipe
contamination. The unique
jackscrews of the Ultra Rim
Clamps are trapezoidal,
which are superior and
stronger than conventional
jackscrews, and can assert
more pressure to the pipe.
The heavy duty latching
mechanism of the Ultra Rim
Clamp ensures stability and
safety on the pipe.
The Rim Clamp and
Ultra Rim Clamp are both
available as CE certified.
Unlike other clamps on
the market, the Sawyer
Ultra Rim Clamps are
supplied with a torque
wrench for correct
reforming pressure of
each jackbar, along with
a unique setting gauge
which allows the operator
to set the jackscrews to
the exact diameter of
the pipe being worked
on, prior to the clamp
being fitted onto the pipe. This saves considerable time
and effort in trying to balance the clamp once it is in
position. With the Rim Clamps, once they are on the pipe
and locked into place; you’re ready to go.
Sawyer is a competitive global provider of pipeline and
welding equipment. With offices in the US and the UK, they
are well-positioned to meet the needs for the expanding
international pipeline industry and can effectively distribute
equipment to customers wherever they are based. Sawyer
offers a diverse range of equipment for welders in the pipeline
industry; setting the benchmark for quality and durability and
consistently manufacturing innovative equipment on which
their customers can rely. All equipment is engineered with
set-up speed, ease of use and maximised productivity in mind,
with dependability and power guaranteed.
Figure 1.
The Sawyer Ultra Rim Clamp is designed
for use on out-of-round conditions, heavy duty
jackscrews apply pressure to precisely reform the
pipe.
Figure 2.
Save time and effort, by using the
specialised torque wrench to set the perimeter of
the jackscrews before it is placed on the pipe.
