Tag Archive: NASA

1. Clean Room Cranes: Applications & Features

   June 30, 2015 4:54 pm Leave a Comment

   American Crane and Equipment Corporation was recently contracted to build a critical lift crane. We produced a customized 25 Ton Top Running Double Girder Crane, which was installed at the Kennedy Space Center and used to build the Orion spacecraft.

   This crane was not only a critical lift crane, but it was also a clean room crane.

   Clean Room

   A clean room is a manufacturing environment that, because of product requirements, must be kept as free from environmental pollutants as possible. Industries that commonly have clean room requirements include the electronics, food, beverage, pharmaceutical, and, as was the case with the Orion spacecraft, aerospace industries.

   The food, beverage, and pharmaceutical industries produce products that are ingested by humans, so those products must be contaminate-free. Products produced in the electronics and aerospace industries are sensitive and could fail if exposed to contamination during production.

   Because freedom from contamination is so important to the products developed in clean rooms, all equipment introduced into clean rooms — including critical lift cranes — must comply with strict clean room standards.

   American Crane’s Clean Room Features

   To meet NASA’s stringent clean room standards, American Crane designed their critical lift crane with these special features:

   • All fasteners are stainless steel and self-locking to ensure that no bolts or debris fall from the crane
   • The walkways are equipped with continuous kick plates to capture any dirt or debris
   • Stainless steel diamond-shaped track is used with the festoons to eliminate places that debris could gather
   • The runway conductor bars are covered in extruded plastic to prevent debris from escaping
   • There is a debris shield underneath the lower block to prevent any wire rope debris from reaching components of the Orion spacecraft
   • All electrical enclosures are shielded to ensure that no RFI or EMI reach the spacecraft
   • All axes of movement have extremely slow speeds, less than two inches per minute, to allow for the successful mating of critical components without risk of collision or damage
   • The crane control system utilizes a “watchdog” PLC system that checks each movement against what the operator commanded and stops erroneous motion.

   For more information about American Crane and how we can custom build cranes that meet your clean room requirements, contact us today.
   
   
   

2. Lifting the Future of Spaceflight

   October 25, 2013 1:12 pm Leave a Comment

   From manufacture to completion, a space transport vehicle is made to launch and orbit, never to fall. One of these would be a billion-dollar space capsule weighing 10 tons.  The Orion Multi-Purpose Crew Vehicle (MPCV) is the latest hope of the U.S. space program for sending humans beyond Earth orbit and onto destinations far, far away. Since the retirement of its space shuttle fleet, the Orion is NASA’s only crewed space vehicle under a recent revamp of the program’s long-range plans, called the NASA Authorization Act of 2010. The new strategy is to use the Orion Crew Module (or capsule), being built for NASA by Lockheed Martin Corp., and the Service Module, under development by EADS Astrium for the European Space Agency, to send crews of four to six astronauts on missions to orbit the Moon, explore nearby asteroids, and ultimately travel into orbit around Mars. NASA has scheduled the first flight of the Orion, called Exploration Flight Test 1, for sometime in 2014 aboard a Delta IV Heavy rocket system. This will be an unmanned shake-out run to test the Crew Module’s avionics, heat shielding, and parachutes over two Earth orbits and a high-energy reentry in the Pacific Ocean. To work on the capsule (and eventually assemble the Orion and the Delta IV for launch), NASA is using a 25-ton ACECO custom crane (which we refer to, naturally, as the “Orion Crane”). Officially, the Operations and Checkout Building’s (O&C) Low Bay Crane is used by Lockheed Martin personnel to move the Orion around the facility at the Kennedy Space Center (KSC), in Cape Canaveral, Fla. Lockheed Martin moves the capsule through several workstations along the crane’s runway during final assembly, testing, and preparation for spaceflight. Our crane will also mate the Orion capsule to the Delta IV’s second stage, inside the O&C, and place this assembly on its trailer for transport to the launch pad. In the future, our crane will mate the Crew Module to the Service Module and then lift that assembly onto the transport. ACECO is currently building another critical lift crane for the Orion project. Lockheed Martin will move the existing O&C Low Bay Crane to the O&C’s receiving room to lift the Orion capsule off of the transport from their manufacturing plant. Our new crane will then be installed in the Low Bay of the O&C and become the new O&C Low Bay Crane. It is a 30-ton capacity crane and is scheduled to be completed in February 2014 at Plant 1 and installed in May 2014 at KSC. So one day we’ll be able to really say that we were the first to lift the Orion spacecraft off the ground. Photo (courtesy NASA): The Orion ground-test vehicle on a work stand in the Operations and Checkout Facility at the Kennedy Space Center in Florida. Resources: www.nasa.gov/exploration/systems/mpcv/index.html https://en.wikipedia.org/wiki/NASA_Authorization_Act_of_2010 //store.americancrane.com/category/aerospace