Matjack

Home

Jumbosafelift

Catalogs & Accessories

New Products

Open Bottom Lift Bags

Underwater Lift Bags

An underwater lift bag is the only piece of diving equipment that can pay for itself each time it is used!

Our underwater lift bags have one or more handles and tie-off points to make them easy to grasp and secure both in and out of the water.

Our underwater lift bags are designed to be folded and rolled into compact, negatively-buoyant rolls that are easy for the diver to handle and deploy underwater.

The over-pressure valves on our underwater lift bags are designed to adequately vent the air from a fully charged bag on a free ascent from any depth.


Open Bottom Lift Bags These bags are very versatile light-to medium-duty lift bags. They are excellent for sport divers, and suitable for most types of underwater lifting and light salvage. All but 50 pound bags have diver-actuated dump valve and all are open at the bottom to vent expanding air as they ascend. They are economical, lightweight, and fold into a neat, compact roll for easy handling underwater.	*Salvage Tubes* Salvage Tubes are highly versatile in the number of ways in which they can be deployed. They are excellent for pipe-laying and other underwater construction products. Where salvage tubes really come into their own is when they are used in raising sunken boats. They can be used vertically to bring the boat out of deep water. When the boat is suspended near the surface they can be slung under the boat with one end on each side to raise the boat high enough out of the water to pump it out. In shallow water, two bags can be slung together, one on each side of the boat, similar to pontoons. They can also be used as rollers for moving beached boats back into the water.
*Enclosed Pillow Bags* Pillow bags are totally enclosed, with over-pressure valves to vent expanding air as they ascend. The advantage of Pillow Bags over the Open Bottom Bags is that they can attain their maximum left in much less water. For this reason, they are excellent for raising sunken boats, and for towing jobs. Like the Boulder Bags and the Ocean Salvage Tubes, all pillow bags come with brass quick-disconnect fitting attached to a short filler hose (connects to 1/4" pipe thread).	*Boulder Bags* Boulder Bags derive their name from gold dredgers and nugget hunters who use them for lifting boulders in the shallow rivers of California's mother-lode country. They are designed to get a maximum amount of lift from a single lift-point in a minimum depth of water. For example, the 2000 pound Boulder Bag gets its total lift in less than 3 feet of water, whereas the 2000 pound Open Bottom Bag requires almost 8 feet of water. These bags are very durable and have been used as air jacks capable of exerting several thousand pounds of force over a large area.
Propeller Bags These bags are specifically designed for installing and removing boat propellers, but they are well suited for several shallow lifting jobs. To stabilize the lift of a heavy prop, it is often necessary to lower its center of gravity by attaching a weight to its lowest blade.

Home | High Pressure Airbags | Low Pressure Airbags | Quick Lift Bags
Hose-Cat Coupling Assist Tool | MatSack Leak Sealing System | Portable Roadways
Industrial Plugs | Dunnage Bags | Underwater Lift Bags | Digital Water Levels

MatJack is a division of Indianapolis Industrial Products, Inc.
1441 Sadlier Circle, West Drive Indianapolis, Indiana 46239 317.359.3078 FAX 317.359.3079
matjack@sprynet.com Or Call 1-800-827-3755 for more information