| After-sales Service: | Yes |
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| Warranty: | 1 Year |
| Manufacturing Process: | Casting |
| Surface Treatment: | Galvanized |
| Operation Pressure: | Atmospheric Pressure |
| Material: | Alloy |
| Samples: |
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| Customization: |
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Suppliers with verified business licenses
Audited Supplier Description:The Mechanical External Cutters are automatic spring-fed cutters that provide
fast, efficient, external cutting and recovery of long sections of tubing, drill pipe or casing.
The spring-fed feature prevents excessive strain from being applied from the rig floor, which
could cause the knives to burn or break before the cut is made. The Body of the External Cutter
is designed so that when an upward strain is taken on the cutting string (and the Spring Dog
Assembly has engaged a tool joint or collar), the downward travel of the Spring Dog Assembly
and the Thrust Washer is limited to compressing the Main Spring and to shearing the Feed
Ring Shear Pin. Thereafter the Knives are fed for the cutting operation only by the Main Spring.
A Thrust Bearing Assembly assures smooth, low-friction rotation of the cutter.
The Spring Dog is designed to catch under the coupling to actuate the cutter and retain the
cut-off section of the pipe. It is effective for use with couplings, collars or squared shoulder tool
joints. It is standard and will be furnished unless an alternate optional catcher assembly is specified.
The optional Ratchet Pawl Assembly is used if the pipe being cut has external upset integral
tool joints. This assembly may also be used with couplings. The optional Slip Assembly is used
if the pipe to be cut has external flush tool joints. The Slips will grip the pipe at any point in its
length to actuate the cutter and retain the cut-off section of pipe. the External Cutters are available
to cut all popular sizes of drill pipe and tubing. Special sizes will be furnished on special order.
Applicable Industries: Energy & Mining
Use::Well Drilling
Place of Origin: Shandong, China
Brand Name: Zhao Xin
Material: Alloy steel
Type:WD-J58~WD-J206
Suppliers with verified business licenses
Audited Supplier 
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