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
Product Features:
- 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
Rig Release
- 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
Spreader
- Tandemlock ends, your pipe
- 14 Tons and above
Counter Balance Spreader Bar
Tilt-Up Rigging
Happy trails to my crane and rigging friends.
Mike Parnell
President
ITI – Field Services