What is the horizontal directional drilling(HDD)?

Horizontal directional drilling (short for HDD), also known as directional boring, is a method of underground duct/conduit installation without using the conventional methods of excavation or trenching. This method is popular among the drilling professionals for its minimal impact on the surroundings.

For locations where the other forms of drilling are not possible, such as river crossings, the horizontal directional drilling makes the job easy for the workers. The process of horizontal directional drilling involves surface-launched drilling rigs, which ensures that the surrounding areas of the drilling are not affected during the operation. Depending on the type of surface, a variety of heads are used for drilling the pilot hole.

HDD Usage
Horizontal directional drilling is applied in a variety of different construction areas where the conditions are suitable for drilling. The application areas include river crossings, landscapes, roads, and residential areas where trenching or excavation is not possible. The horizontal directional drilling cannot be used where there are incomplete rock layers or empty spaces between the rocks.

SGR Planetary gearbox for HDD

SGR planetary gearbox is an important component in the process of horizontal directional drilling. A well-manufactured and compact planetary gearbox ensures high and steady torque output during rigorous processes such as that of horizontal directional drilling.

The process of one directional drilling has many planetary gear heads working at a high-speed and low-torque input. Moreover, an hydraulic motor, called planetary gear motor, provides power for the process of boring.  During the process of HDD, the smooth planetary gear transmission is important for the durability of drilling rigs.  That is why the drilling experts never compromise on the quality when it comes to choosing planetary gearbox.

SGR planetary  gearboxes help manage the torque as needed during the drilling process. There are different planetary gearboxes available in the market with varying planetary gear designs. The planetary gear design determines the torque value; each design has a unique torque value and is hence suitable for particular applications.

An ideal planetary gearbox can handle varying speed requirements and has a durable life. The design of a planetary gearbox should also comply with the varying needs of mobile drilling rigs that often operate in harsh conditions.

Famous Planetary gearbox manufacturers
Owing to the increased popularity of the horizontal directional drilling, the demand for high-quality planetary gearboxes has also increased manifolds in the recent times. To address the high demand, many manufacturers have come into the market.  Among other countries, China is leading the competition with affordable prices and high-quality manufacturing.  Some of the popular planetary gearbox manufacturers include :

• BONFIGLIOLI RIDUTTORI S.P.A.,
• Shanghai  SGR  Heavy  Industry Machinery  Co.,Ltd .,
• Brevini Power Transmission S.p.a. etc.

SGR Planetary gear design for HDD structure

The planetary gearboxes manufactured by SGR have a great impact in the manufacturing industries as of the different planetary gear designs. SGR planetary gear boxes go through strict checks before they are shipped to the contractors as quality is never to be compromised as per the motto of the SGR company. The series of planetary gearboxes by SGR has several models depending on different planetary gear designs.

Series N2 (Two stage planetary gearbox)

SGR  two-stage planetary gearbox is adjustable and can be mounted in all directions. Providing an extremely high radial capacity, the series N2 has proven to be very popular among the drilling experts. This series comes with mounting possible in all positions and custom mounting dimensions. Moreover, each gear box has a stable and high-level torsion rigidity making trenchless horizontal direction drilling an easier process.

This gearbox is specially designed for greater power drilling machines. The N2 series was introduced with more resistance on the output shafts. This enables their application in the heavy drilling machines. The two-stage planetary gearbox series ensures rigidity and strength of the gearboxes with lower speed shaft design. The planetary gear motor manufacturers make sure that all the customers’ requirements are met through this design. This is the reason why the two-stage motor is very popular among the heavy machinery suppliers.

 Series N (inline gearboxes)

The series N of the planetary gearbox also called 1 stage planetary gear box ,it  can be mounted in any position with dimension B5, V1, and V3 etc. With a torque range of less than or equal to 540000N.M., the series planetary gear reducer has the reduction ratio of greater than 3. Moreover, the first series provided by the planetary gear box manufacturers is used widely among the horizontal drilling projects due to its spectacular features such as low noise. This series provides customized gear reduction speed levels ranging from one to five. The series is reliable with an extraordinary planetary gear box design that best suits the customer requirements.

Series N3 (SGR 3 stage planetary gearbox)

As the series increase in number, the capacity to carry more radial load also increases. The variety of planetary gearbox designs and series have made SGR earn a good name in the industry.  Also, the noiseless gearbox series can be mounted in all positions and custom dimensions enabling ease of use to for the customer.

SGR has also introduced 4 stage planetary gearbox series. This product range has with even more customer oriented modular design along with long life and reliability. In addition, a more advanced N5 series has also been introduced keeping in view the customer requirements. Also, as the process of horizontal directional drilling becomes increasingly popular, planetary gearboxes for the heavy machinery, that can bear more load, are in high demand.

Trenchless horizontal directional drilling RIG corresponding table:

Tips to buy horizontal directional drilling gearbox

 SGR makes all the planetary gearboxes keeping in view the DNV-ISO9001,SGS,CE standards and the latest market requirements.  Moreover,  the products undergo a process of strict testing before and their strength and reliability are ensured for the smooth running of the drilling processes. From the shafts to the bearings, all the components of the planetary gearboxes are manufactured keeping in view the industry standards and client’s requirements.

For more information on Planetary gear box for HDD, please feel free to contact SGR through our site, phone, or email.