Page 57 - North American Clean Energy May June 2015

wind spotlight: tensioners & torque systems

Tensioners &
The proper alignment of a bolted joint can be achieved by using either torque or tension
methods of bolting. Proper bolt loads must be realized during installation or the integrity
torque systems
of the joint will be compromised, leading to misalignment and, if left unchecked, the
ultimate failure of the joint. In this issue, we look at some of the tensioners and torque

systems available today.

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Bolting Technology
an ISO9001:2008 & ISO17025:2005 company
TorkWorx
ITH Engineering

Product: Multi Schedule Base Bolt Tensioner
Outside tool diameter: 4.84" (122.94 mm)
Product: ITH Bolt Tensioning Cyclinder
Key Features:

Description: The new TorkWorx Aero WTF is a purpose Overall height: 6.88" (174.75 mm)
Description: ITH bolt tensioning • Designed with OEM’s for all turbine
designed range of hydraulic bolt tensioning tools devel- Overall distance between stud CLs: 6" (152.4 mm)
cylinders are designed for tightening applications;
oped by Tentec and designed to suit most wind turbine large diameter bolts of all major OEM • Lightweight and compact designs;
foundation bolting applications. The Aero WTF tensioning Weight: 21.42 lbs (9.72 kg)
wind turbine applications including:
tools can be supplied to suit many different bar types.
Key Features:
foundation rods, tower bolts, bearing • Patented safety features;
• Multi-schedule design allows for tensioning of multiple • High load accuracy and repeatability;
Bolt Diameter: #10, #11, 1-3/8", and 1-1/4" in 75KSI bolts, and other applications. Combine and
and 150KSI
sizes;
ITH tensioners with the standard-duty
Stud Protrusion: 10" (223 mm) • Manual and gear-driven models available;
ITH Eco-MAX pump for construction • Fast operation using one or multiple
• Long 25 mm stroke available;
jobs or the lightweight and compact tensioners simultaneously.
Max Stroke: 1" (25 mm)
Micro-MAX pump for maintenance jobs.
www.ith.com
Max Load: 171,404 lbf, 762Kn
• Spring assisted piston return; and
• Easy onsite maintenance. Bolt Diameter: M16 and larger
Hydraulic Pressure Area (in2) & (mm2): 8.74"
(5647.79)
www.torkworx.com

North American Clean Energy 57