Model Si torque wrenches use a quick-change Drive
Head with a double-ended socket to help you torque industrial
size bolts on heavy equipment. Each low profile, offset Drive
Head* is designed with the smallest possible head radius to fit
any size API or ANSI flange or other big bolt application. Torque
reaction is in the plane of the hex nut or bolt, thereby eliminating
the tendency of the wrench to twist off the nut when torque is
Operation is simple! One worker positions the wrench on a bolt
head and pushes the control valve on the torque wrench. The cylinder
rod strokes out and turns the fastener 15 degrees. Separate electrical
control pendants are not used. When the control valve is released,
the load is removed and the wrench mechanism ratchets.
Another stroke can be removed. The Model Si torque wrench will
NEVER "hydraulically lock" onto a nut or bolt. To loosen
bolts, the tool is simply turned over. From the model Si-1.5 on
up to the Model Si-150, you get BMF
quality and engineering built-in. Torque output is accurate within
Wrench are stronger.
Our Unique and simple ratchet design engages all 24 ratchet teeth
at one time. Therefore, the torque load in our wrench is distributed
the ratchet teeth, instead of high loading on 1 or 2 teeth as in
other ratchet wrenches (causing them to prematurely fail). There are no pins, no pawls, and no levers
in our ratchet to break or wear out. In fact, we warrant our ratchet
mechanism for a full 3 years.
Wrenches are safer.
Only the worker that positions the wrench on the bolt controls
its operation . Nuts and bolts are made quicker and more safely
because the times and the risk of coordinating the efforts of
a 2-man operation is eliminated. Most BMF wrenches need only 3000
PSI to produce maximum torque, instead of the over 10,000 PSI
required by other makers.
Wrenches are more reliable.
We manufacture our wrenches from heat treated chrome-moly alloy
steel rather than aluminum. Our wrenches and parts are at least
twice as strong as wrenches made from aluminum. In addition, our
low pressure hydraulic system is inherently more reliable than
others requiring 3 times higher pressure.
All of these features combine to give you a hydraulic powered
torque wrench that can be safely, reliably, and quickly torque
industrial size bolts.
Model Si Torque Wrenches are available with any size or shape
socket, in inch or metric sizes, from 1" to 9-1/8" (25mm
*Each Drive Head is a complete ratcheting box wrench and is easily
changed out. Individual sockets are also available.