SR-80 LHR New rotary rig for low-headroom space

Soilmec SR-80 LHR Piling Rig

The new SR-80 LHR is a rotary rig specifically designed to work in low-headroom space. Because of the continuous growth of urban areas, it has been necessary to examinate the capacity of our rigs to work in low space conditions: under the power or the telephone lines, inside preexisting structures, under the bridges etc. To meet this growing market demand, Soilmec has developed a dedicated conversion low-headroom kit to be mounted on the SR-65, SR-70 and SR-80 for large diameters and deep piles.

The new Soilmec SR-80 LHR rig is designed to be mounted on the SR-80 base carrier. Therefore it can also be purchased as a simple kit, including a special mast, a modified boom articulation and a new rotary group. The base machine is powered by a compact V6-turbo Diesel engine, type Deutz TCD 2015 V06. It is in compliance with the emission standard (Tier III stage A and B) and reaches a maximum rated power of 330 kW at 1,900 rpm. As other Soilmec rigs, the SR- 80 LHR is fitted with the Drilling Mate System (DMS).

Soilmec SR-80 LHR Piling Rig

It is a system developed by Soilmec for the monitoring and control of working functions. On a 12” touch screen all the machines important operating parameters and drilling data are displayed. As for other Soilmec models the DMS system offers, as an option, the possibility to be connected via mobile network directly with the Soilmec customer care server for live trouble shooting. However the real innovative and specific solutions developed for the SR-80 LHR are the special rig drilling group, the new mast, the new crowd system, the modified boom articulation and the rotary.

Soilmec SR-80 LHR Piling Rig

The mast of modular type construction ranges from 5.80 m to 9.80 m max length. It allows to adapt the rig clearance in safe conditions even in difficult and risky situations (under the power lines for example). The rotary group is designed for dedicated ten sections Soilmec Kelly bar passage and drive. The rotary reaches 250 kNm max torque and a max speed of 100 rpm.

Soilmec SR-80 LHR Piling Rig

The crowd system includes a strong chain that can transmit 230 kN pull up and pull down force. Thanks to these characteristics the SR-80 LHR is suitable to drill very large bored piles up to a diameter of 2,500 mm and 60.9 m max depth: an important result for a Low Headroom rig.

Soilmec SR-80 LHR Chart

Finally, beside the usual features that ease the transport available on other Soilmec rigs (side frame dismounting, counterweight self-mounting cylinders), the SR-80 LHR rotary head offers the possibility to be dismounted for transport by four bolts that secure it on the cradle. The rig alone w/o rotary head and counterweight weights only 40 t. The overall concept of the SR-80 LHR leads to a high value product in the 70-80 t class.