A round base ordered separately is available to fit the 2.
Mine roof support jack.
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Designed for use as a safety prop the 139a family is suitable for cross timbering with wood or steel beams.
The base is sold separately.
The 139a family is a screw extension type roof support rated at 5 tons sustaining capacity.
The 8 ton model uses 2 schedule 40 pipe while the 16 ton requires 2 schedule 80 pipe.
View product specifications for the jacks mechanical mine roof supports.
The length of the jack when measures after the accident was ten 10 feet and six 6 inches.
Tunnel mine roof industry.
Milwaukee mine roof jacks are designed for mine construction and other areas where ceiling heights vary greatly.
Tunnel mine roof directory on the internet.
Mine roof support jacks.
Jacks mechanical mine roof supports mine roof supports.
Screw and cap assemblies.
The 16 ton ms 17 models require 2 schedule 80 pipe.
Use your own pipe to custom build a support for nearly any application.
Is a closely held company formed over 50 years ago to manufacture commercial products.
Use your own pipe to custom build a support for nearly any application.
The temporary roof support jack being installed was a mine manufactured and was of a screw type.
Benefits features simplex head assemblies are designed for roof support in mines and other areas where ceiling heights vary greatly.
Kennedy metal products is a world class manufacturing firm with manufacturing interests on three continents.
The latest computer aided design cad and computer aided manufacturing cam equipment is extensively.
Open center pit lift.
Simplex head assemblies are designed for roof support in mines and other areas where ceiling heights vary greatly.
Tunnel mine roof resources are compiled in this industrial portal which provides information on manufacturers distributors and service companies in the jacks.
The 8 ton ms 9 models use 2 schedule 40 pipe.
For over 70 years metro hydraulic jack company a third generation family owned and operated business has been.
All models use a round base item number 1470200 which fits 2 pipe.
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Jack kennedy metal products and buildings inc.
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