Alloy Steel Drive Chucks And Sub-Savers , HDD Directional Drilling
One piece construction – all of our drive chucks are machined from
a single block of heat-treated 4140 alloy, not welded like many of
our competitor's products.
All subs are precision machined of 4140 alloy, quench and temper
hardened. Designed for prolonging life of Drive Chucks on
Directional Drills. Custom Subs can be built upon request.
For all Vermeer HDD Rigs and common pipe diameters, our compatible
sub savers are machined to exacting standards and composed of high
strength alloy steel.
In the context of a drill string, a saver sub is a threaded
coupling under the kelly to which the joints of drill sting are
made up. It can reduce wear on the kelly threads. This type of
trenchless equipment adopts high quality structural alloy steel
that is heat-treated for maximum durability. As a professional
manufacturer and supplier of trenchless tools in China,
sinocoredrill is able to supply customized sizes of saver subs
according to customers’ horizontal directional drilling
This kind of trenchless equipment is expendable and does not
represent a major investment. However, the kelly or topdrive
component threads are spared by use of a saver sub, and those
components represent a significant capital cost and considerable
downtime when replaced.
1. excellent comprehensive mechanical properties.
2. wear resistant.
3. high fatigue strength and long fatigue life.
4. good flushing effect to ensure high drilling rate.
5. widely application and accurate size.
6. origin of material: our materials are come from bao steel which
is the best steel factory in China.