Installation of a gas pipes with the - TERRA MINI-JET MJ 1600
Pit Launch Machine MJ 1600, highest productivity and fast installation After the preparation of the starting and target pit, the pit launch machine MJ 1600 was installed into the pit. The cradle of the machine was connected to the hydraulic houses and the bentonite was prepared in the mixing and pumping station in a 2,000 ltr (530 gal) tanc. The drilling head was placed at a level of 1,1 m (3,5 ft) of depth and an inclination of minus 2 %. The installation was done fast and easy. For the pilot bore the contractor only used 2 hours, which shows the high productivity of the machine. After the pilot bore the backreaming procedure was started. The contractor used a TERRA reamer with OD 115 mm (4,5”). The high rotation speed of 150 rpm and the high drilling volume of 52 ltr/min (14 gpm) makes it easy to operate the machine and it guarantees a continuous flow of the bentonite during the backreaming procedure.
Satisfied client and contractor, more jobs to come After the jobsite the client and his contractor were very satisfied with the pit launch machine TERRA MINI-JET MJ 1600. The pit launcher is the ideal machine for house connections, road crossings or bores with narrow and limited space.
Pic 1: TERRA MINI-JET MJ 1600 lays an HDPE gas line DA 75 mm. Pic 2: Drilling path and starting pit for the MJ 1600 Pic 3: Drill rods with bending radius of 15 m (45 ft). Pic 4: The bentonite is prepared in the 2,000 ltr (530 gpm) Tanc. Pic 5: Arrival of the sonde housing and drilling head C/60 after 2 hours. Pic 6: Installation of the reamer OD 115 mm (4,5“) and the gas pipe OD 75 mm (3“). Pic 7: The scraper DA 115 mm for HDPE gas pipe DA 75 mm in use.