Bolting: Choosing the right coating for fasteners

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Excerpt: The importance of fastener coatings is becoming more apparent throughout the wind industry. Different coating chemistries have been used to improve corrosion protection, or lubricity, or both. However, increasing demands on field life, global legislation, and worldwide commonization continue to crea …

Bolting services company earns ISO 17025 Accreditation

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Excerpt: Aztec Bolting Services announces the completion of A2LA Accreditation as an ISO/IEC 17025:2005 Calibration Laboratory. The company understands the necessity of more stringent testing and certification processes for today’s requirements.  Despite the intricate and costly undertaking, Aztec Bolting …

Welder brings simpler operation to large welding wire diameter on thick materials

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Excerpt: The recent high amperage Flextec 650 multi-process welder from Lincoln Electric delivers up to 815 amps of welding power. Its FLEXible TEChnology lets welders use a variety of processes – stick, Touch Start TIG (DC), MIG, flux-cored CV submerged arc and arc gouging – on numerous applications …

New website for hydraulics

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Excerpt: Power Team has launched a newly redesigned website with enhanced features that let users more easily search products and product specifications. The company manufactures high-force hydraulic pumps, cylinders, and tools. The equipment ranges from hydraulic torque wrenches and power units for construc …

Smart tools avoid errors, light tools save knees

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Excerpt: Bolting a tower to its foundation is probably work for a hydraulic torque wrench that can spin 2.5-in. nuts past 8,100 Nm. But climb a tower section during construction and more often electric torque wrenches, weighing 28 lb and less, get lugged to the job. A few reasons for the transition from hydr …

Bolting company celebrates 25 years of tension…and torquing

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Excerpt: Heading into 2012, Aztec celebrates its 25thanniversary of providing quality tooling.  The company is investing full force into the future through the expansion and addition to their headquarters and ISO 17025 accreditation. After completing a recent expansion to the headquarters in League C …

Bolting 101

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Excerpt: Most bolts in a wind turbine are manufactured to OEM specs. OEMs also provide a torque value which the construction crew must apply to each bolt for a required level of tension. But because torque does not always correlate to tension, bolt manufacturers have devised a range of devices to more accura …

Bolting 101

Archived; click post to view.
Excerpt: Most bolts in a wind turbine are manufactured to OEM specs. The OEM also provides a torque value which the construction crew must apply to each bolt for a required level of tension. But because torque does not always correlate to bolt tension, bolt manufacturers have devised a range of devices for i …

Prestressed ground anchors allow smaller foundations

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Excerpt: All successful wind projects begin with strong foundations. Larger wind turbines naturally call for taller towers and larger foundations that consume enormous amounts of concrete and rebar. To handle variations in wind turbines, the current state of practice includes spread-footing foundations, …

These fasteners cut costs and more

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Excerpt: A recent brochure from Spirol Corp. covers many uses for coiled spring pins and the company’s many other specialty fasteners. The pins use a 2¼ coil cross-section to make them self-retaining pins that compress when installed into a host component. The manufacturer says they are the only pins with …