Often we discover that standard rigging will not provide sufficient load control and a custom system or device is required. Sometimes the designated lifting points on a load have been placed more for the convenience of the manufacturer rather than the field installation crew. Another challenge can arise due to the shape and center-of-gravity of the load, which results in a rigger trying to get too creative.
ITI strongly endorses the use of “qualified” below-the-hook lifting devices. You can find terrific guidance in developing a custom device from the ASME BTH-1 Design of Below-the-Hook Lifting Devices document. Also in ASME B30.20 Below-the-Hook Lifting Devices, we have access to informative care, use and inspection criteria for lifting devices. (Both documents are available at www.asme.org or www.iti.com/bookstore)
The following are just a small offering of ideas that can solve some load handling problems. The items pictured do not imply an endorsement of a given manufacturer, however, the name has been provided as a help to the reader. Numerous lifting device manufacturers exist in the U.S. and around the world. You may find that a custom device already exists though not shown on the manufacturer’s website or in their catalog. Contact a number of lifting device manufacturers to see if they have already designed a special lifter for your type application. You may be surprised at what is available. An excellent resource is the Member Directory at www.awrf.org.
Clamps for Beams
Adjustable Lifting Frame
- New knock-down design is easily transported
- 6 or 9 ton capacity
- Spreads up to 12' x 12'
- Four point spreader beam provides added stability
- Chain top rigging and hoist rings
- Lower lifting shackles standard
- Complies with ASME standards
- Lift Arm only moves when the load line is slack
- Manual pull rope or radio remote
- Design factor is five
- Even works for Christmas treeing
Pallet Fork for Crane Loads
- Adjustable bail and forks
- 1-20 ton capacity
Adjustable Spreader Bar
- Spread 4-20 feet
- 2-15 Ton capacity
- Tandemlock ends, your pipe
- 14 Tons and above
Counter Balance Spreader Bar
Happy trails to my crane and rigging friends.
ITI – Field Services