Gearbox Express is building a new, 75,000 square foot manufacturing facility south of Mukwonago, Wisc.

Gearbox Express’ 75,000 ft-sq planned facility doubles current plant

Gearbox Express (GBX), the only independent company in North America focused on providing down-tower, wind gearbox remanufacturing services, is building a new, 75,000 square foot manufacturing facility south of Mukwonago, Wisc. Founding partner and CEO Bruce Neumiller, CEO, cites lack of capacity to support the company’s growth as the major reason. “When we started operations

Moventas A look inside the Exceed

Moventas provides an update on its 3 MW Exceed gearbox

The Exceed prototype assembly is proceeding in the developer’s Jyväskylä factory. As a result of the design work to make Exceed as lightweight and small as possible, the outer diameter of this helical stage is almost as small as those of kilowatt class gearboxes, although this the Exceed is rated at 3 MW+. In addition

Nrel table overall cost results

How tip velocity affects wind turbine design

This study conducted by NREL engineers, investigates the effect of tip-speed constraints on system levelized cost-of-energy (LCOE). The results indicated that a change in maximum tip-speed from 80 to 100 m/s could produce a 32% decrease in gearbox weight (a 33% reduction in cost), which would result in an overall reduction of 1 to 9%

Gearbox sizing for different speed ratio requirements driven by different maximum allowable tip speed constraints.

Sandia and NREL collaborate on the impact of tip speed constraints on wind turbine design and plant cost of energy

NREL and Sandia recently published two reports on their collaborative effort to study the effects of increased maximum allowable blade tip velocities on overall system cost and performance. The maximum rotor rotation speed for utility-scale wind turbines is generally constricted by noise considerations. Even so, innovations in acoustics or siting in remote locations or both

The Moventas mobile service unit performs repairs on-site reducing costs associated with wind-turbine maintenance.

Moventas announces mobile workshop tour in North America

Moventas, a wind gear manufacturer and service provider, has announced a multicity tour of the company’s innovative mobile workshop in North America. The tour started from Spearville, Kansas last week. During the Mobile Workshop Tour, wind farm owners and operators will have the opportunity to see the self-contained, climate controlled workshop first hand and gain

Model OILAN A4 is an on-line oil water content analyzer which instantly shows changes in the lubrication oil water content.

Water in oil content analyzer provides realtime data

Water in gearbox oil can degrade the oil’s lubricating characteristics. Knowing how much water is in the oil also gives technicians an idea of when the oil needs changing. Model OILAN A4 is an on-line oil water content analyzer which instantly shows changes in the lubrication oil water content. It is an excellent instrument for

Recent breathers feature new oil mist reducing feature and more than double the desiccant.

Better breathers promise less water in gearboxes

The new Des-Case Extended Series breathers combines the materials, design, and high air flow of our Standard breathers with the check-valves of our hybrid breathers, plus a new oil mist reducing feature and more than double the desiccant! It works like this: As wet, contaminated air is drawn through the unit, multiple 3-micron polyester filter elements

Moventas Exceed series

Moventas launches new Exceed series high torque density 3 MW gearbox platform

Moventas officially launches its new high torque density gearbox platform, Exceed, in Hamburg. In addition to Acciona Windpower, another customer has placed orders for the Exceed. The Exceed Series is a 3 MW and up product platform for medium and high speed drivetrains, with the best ratio price/nominal torque in the market that’s now available

winergy2

Winergy gearbox with two output shafts ready for up to 12 MW outputs

Multi Duored technology provides a relatively light 62 ton gearbox with two output shafts. In addition to the more compact design, the two output shafts couple to two generators connected in parallel instead of to just one generator. When properly sized, each can drive a 6 MW generator. When designing this gearbox, special emphasis was

Common failure modes  in wind-turbine gearboxes.

Keeping on top of gearbox reliability issues

Modern gearboxes provide greater reliability to the wind-energy industry thanks to design and operations improvements, such as bearing selection, design process, manufacturing quality, transportation, lubrication systems, and end-of-line testing. Reliability issues will never completely go away, but keeping on top of issues should reduce maintenance costs at aging wind parks, with problematic models, or gearbox