Superbolt MJT standard range - Nord-Lock
Superbolt MJT standard range - Nord-Lock
Superbolt MJT standard range - Nord-Lock
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Our engineers can solve your bolting challenges<br />
Gas Compression<br />
Applications include: Crosshead jamnuts, counterweight crosshead jamnuts, couplings, connecting rod nuts, distance pieces, end<br />
plates, compressor cylinders, doghouse bolting, piston end nuts, valve jackbolts and more.<br />
As seen on this reciprocating compressor<br />
distance piece, our products can be retrofitted<br />
in many limited space applications. High torque<br />
requirements can now be achieved with small<br />
hand held tools.<br />
24<br />
Multi-jackbolt tensioners make the installation of<br />
pistons easier. Only hand tools are required for<br />
installation and removal, and the reliability of this<br />
labyrinth-Piston compressor is greatly increased<br />
over many years of usage.<br />
Fiftytwo 2” (50,8 mm) tensioners on this centrifugal<br />
compressor were tightened by two men in 2-1/2<br />
hours. The old method required three men<br />
working an eight hour shift.<br />
Oil, Gas & Petrochemical<br />
Applications include: Top drives, flame towers, blow out preventors, mud pumps, fracturing pumps, reactor covers, heat exchanger<br />
heads, turbine control valves, turbine joints, pipe flanges, anchorbolts, couplings and more.<br />
With a 2,500 horsepower rating, and 273,000<br />
lb (1215 kN) rod load, this Weir SPM Destiny<br />
Fracturing Pump utilizes <strong>Superbolt</strong> tensioners to<br />
make bolting safer and easier in the field, as only<br />
hand tools are needed.<br />
A special multi-jackbolt tensioner series has been<br />
developed for the unique needs of the Oil & Gas<br />
industry. The washer is captive to the nut body<br />
to prevent loss of the washer, and it features<br />
corrosion protection to address the harsh<br />
conditions. Used here on a riser clamp.<br />
Large methanol reactor with 11” (279,4 mm)<br />
studs. Six hours with <strong>Superbolt</strong> vs. two days with<br />
Hydraulic Tensioners.<br />
Mining<br />
Applications include: Boom points, ring gears, side frames, hoist motors and pedestal tie-downs, draglines, pinion gears, hoist<br />
and drag drums, split gears, bolted segments, excavator bearing caps and more.<br />
The bolting challenges on this crusher included<br />
limited space and extreme working conditions.<br />
Multi-jackbolt tensioners proved to be the ideal<br />
solution. Only 43 lb•ft (58 Nm) of torque on the<br />
jackbolts was needed, the equivalent torque on<br />
the <strong>standard</strong> bolt is 2,150 lb•ft (2915 Nm). The<br />
use of a small 3/8”drive hand held torque wrench<br />
was much safer and more accurate than previous<br />
bolting methods.<br />
Large power shovels have many critical bolting<br />
applications. Multi-jackbolt tensioners are used<br />
extensively on these machines, all over the world.<br />
Seen above, MT tensioners on a ring gear.<br />
On these hoist & drag drums, the high preload<br />
of 428,400 lbf (1906 kN) was achieved with<br />
only 233 lb•ft (316 Nm) of torque required on<br />
each jackbolt. The added flex from the <strong>Superbolt</strong><br />
tensioners more than doubled the elasticity of the<br />
bolted connection.