CAVINS ADV. AUTOMATIC SPIDERS MODEL "F" & "G"

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MODEL “F” SPIDERS AFFORD MANUAL, PNEUMATIC, and HYDRAULIC OPERATION

The CAVINS “Advance” Model “F” Automatic Spider is another industry tested and proven tool. Similar to the Model “B” and Model “C” Spiders, the Model “F” offers manual, pneumatic(air) or hydraulic operation mechanisms. The Model “F” Spider (Fig. 1) can handle tubular goods ranging in size from 2-3/8" O.D. through 8- 5/8" O.D. and is favored for automation in light drilling operations or for heavy workover and production rigs. The load capacity for the Model “F” Spider is 400,000 lbs.

NOW the Model “F” Spider is available also with CAVINS patented, Type “FCR” Full Circle Slips, (Fig. 2) with Replaceable Type “FCI” Inserts. The conventional, Type “TD” Slips, (Fig. 3) with Replaceable Inserts are also available

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MODEL “G” SPIDERS FOR HEAVY DRILLING OPERATIONS

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For heavy drilling operations, up to 700,000 pounds (350 tons) hook load capacity; the CAVINS “Advance” Model “G” Automatic Spider, (Fig. 4) is recommended where heavy duty, dependable service applies. The Model “G” Spider will handle tubular goods ranging in size 2-3/8" through 13-3/8" O.D. and is available for pneumatic (air) or hydraulic operation. Like all CAVINS “Advance” Spiders, the Model “G” utilizes a minimum of moving parts for ease of operation and very minimal maintenance. CAVINS patented and proven Type “FCR” Full Circle Slips (Fig. 2 and 5) with replaceable Type “FCI” Inserts, are used for the complete range of sizes in the Model “G” Spider. The long 16" gripping area plus 360° degree, 100% contact of the Type “FCI” Inserts, makes it the most positive pipe holding device of its kind. Competition can boast only a maximum of 70% contact of the pipe. The clear advantage being greater contact area causing far less chance of damaging or crimping heavy strings of pipe. Another proven asset of the CAVINS unique design is that there is no need for costly pipe guides to attach to the spider because the Slips and Inserts withdraw completely from the Spider Bowl and when disengaged allows full protection from damage by the string when it is in motion.

Master Slip Bodies with companion Replaceable Inserts afford the greatest economy for working a wide range of tubular goods sizes.

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