©2008-2017 McCoy Global
Manual № TM12012
80-0420-23 POWER TONG
Section 1
Page 1.10
Introduction
1.3.2 Terms and Definitions
TERM DEFINITION
ATEX-certi ed Conforms with the EU “ATEX” directive for equipment operated within an explosive atmosphere.
Backup
The component of a tong-backup arrangement that mechanically attaches to the stationary
side of a tubular connection and provides resistance to the tong when making up or breaking
out a joint.
Box The female side of a pipe connection
Break Out
Loosening, un-threading, and disconnecting a connection (typically a tubular connection). The
term may also apply to a general threaded connection.
CE-marked
CE compliant. Conforms with the essential requirements of the applicable Conformité
Européenne directives.
Clamp To grasp the stationary side of a pipe joint with a backup.
Die
A component of a jaw die kit that provides the mechanical contact between the tong and the
tubular.
Joint Also called a “pipe joint”. A threaded tubular connection.
Load Cell
A hydraulic device that transmits a proportional signal to a torque gauge for the purpose of
measuring connection torque.
Make Up
Threading together a connection (typically a tubular connection) and tightening to a speci ed
torque. The term may also apply to a general threaded connection.
Pin
The male side of a pipe connection
Ring Gear
The rotating component, mechanically coupled to a hydraulic motor through a gear train, which
provides rotation to the pin-side of a tubular connection through the use of jaw assemblies
Door Switch
A device mechanically connected to the door of a hydraulic power tong that uses hydraulic
switching to prevent rotation of the cage plates when the tong door is open.
Sling A rigid or non-rigid device used to hoist a piece of equipment using a crane.
Tank Hydraulic uid reservoir
Tong
The component of a tong-backup arrangement that mechanically attaches to the tubular
connection and rotates the tubular to make up or break out a connection
Un-clamp To release the stationary side of a pipe joint with a backup.
WINCATT
®
Data acquisition and torque/turns management system manufactured by McCoy Global
Headstock The tong assembly on a horizontal bucking unit
Tailstock The backup assembly on a horizontal bucking unit
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