Windpower Engineering & Development

  • Home
  • Articles
    • Most recent posts
    • News
    • Featured
  • Resources
    • Digital issues
    • Podcasts
    • Suppliers
    • Webinars
    • Events
  • Videos
  • 2025 Leadership
    • 2024 Winners
    • 2023 Winners
    • 2022 Winners
  • Magazine
  • Advertise
  • Subscribe

Lightweight pump ready for bolt checking at remote locations

By Paul Dvorak | September 10, 2015

Nick Rasper / Service Technician / ITH

Nick Rasper

Nick Rasper

Every once in a while, the bolts that hold a wind turbine and tower together must be checked for tightness. Vibration and tower swaying has a way of loosening the occasional one or two nuts. But rather than lug a 100-lb hydraulic pump around a wind farm, which may or may not have power readily available, a better idea might be a battery-powered hydraulic pump that weighs only 14.8 kg (33 lb) with oil, yet is still capable of generating up to 1,500 bar.

The battery-powered MicroMax from ITH weighs only 33 lb with oil making it useful at sites off the grid, those without power, and in tight working confines.

The battery-powered MicroMax from ITH weighs only 33 lb with oil making it useful at sites off the grid, those without power, and in tight working confines.

The battery-powered unit, called MicroMax, can tighten and loosen bolts at sites off the power grid, such as wind farms under construction, in offshore job sites, and at jobs where space is limited, such as turbine nacelles.

The design from ITH measures about 340-mm long, 250-mm wide, and 450-mm tall and has an optional backpack transporter, a durable carrying system, for easier transport to remote locations.

The 28V lithium-ion battery, rated for 3 Ah, is enough to check a few dozen bolts. That number really depends on how much pressure the pump must generate to get the force required, which also depends on the tool being used. Swapping out a drained 2-lb battery for a charged one lets work begin again. The state of charge is indicated by four LEDs on the battery.

The unit works just like a conventional 120V plug-in pump. Hoses are standard as are the working tools.

A custom backpack, one accessory, makes for easier transport to remote sites.

A custom backpack, one accessory, makes for easier transport to remote sites.

A large 3-in diameter pressure gage is easy to read, and the reservoir holds 3 liters total of which 1.5 liters is usable oil. The unit comes with an extra battery and charger. Other models in the series run on 90 to 110V and are available with remote control and manual shutoff valves.

For a digital copy of the entire June issue of Windpower Engineering & Development, click here.


Filed Under: Construction, News
Tagged With: ITH
 

About The Author

Paul Dvorak

Related Articles Read More >

US government allows Empire Wind offshore project to resume construction
Richardson Electronics to deliver pitch energy modules to TransAlta wind fleets
Equinor halts work on Empire Wind offshore project after federal government order
ARESCA wants input on offshore wind standards

Podcasts

Wind Spotlight: Looking back at a year of Thrive with ZF Wind Power
See More >

Windpower Engineering & Development Digital Edition Archive

Digital Edition

Explore the full archive of digital issues of Windpower Engineering & Development, presented in a high-quality, user-friendly format. Access current and past editions, clip, share, and download valuable content from the industry’s leading wind power engineering resource.

Windpower Engineering & Development
  • Wind Articles
  • Solar Power World
  • Subscribe to Windpower Engineering
  • About Us/Contact Us

Copyright © 2025 WTWH Media LLC. All Rights Reserved. The material on this site may not be reproduced, distributed, transmitted, cached or otherwise used, except with the prior written permission of WTWH Media
Privacy Policy | Advertising

Search Windpower Engineering & Development

  • Home
  • Articles
    • Most recent posts
    • News
    • Featured
  • Resources
    • Digital issues
    • Podcasts
    • Suppliers
    • Webinars
    • Events
  • Videos
  • 2025 Leadership
    • 2024 Winners
    • 2023 Winners
    • 2022 Winners
  • Magazine
  • Advertise
  • Subscribe