|
 The
equipment, purchased by Asfalt-Tous is HK-250 of M production
series, made by
Herrenknecht Co. of Germany,
and one of the most powerful and advanced equipment of its type,
with following specifications:
|
Power |
400 kW |
|
Type |
Rack and Pinion |
|
Pulling Force |
2500 kN |
|
Pushing Force |
1000 kN |
|
Max. Torque |
90 kN M |
 This
equipment is capable to work under different conditions up to a
maximum length of 2900 meters for steel pipes with a diameter of
4 inches, and by increasing the diameter to 48 inches; it would
be capable to implement the crossings with a length of 1700
meters. Although, the main restrictions for the constraints of
length and diameter are pulling and pushing forces as well as
maximum torque, and the said quantities are just mentioned
typically for the steel pipes in the grounds with average
conditions. The equipment includes a complete drilling set,
mounted on a single chassis, the accessories, related to mixing
and pumping the drilling mud, and is capable of using water as
the drilling material. It also includes a drilling mud recycling
unit.
|
