Extended drilling coverage.
The telescopic boom increases positioning range while keeping the carrier in a stable working location.
ProductLGMRT · Rock Drill Rig
A surface hydraulic top-hammer rig with a telescopic boom for expanded coverage and rapid positioning. The current ST120H page specifies a 76–127 mm hole range, Sandvik rock drill and 10 bar air system for mining, quarrying and construction work.

Product parameters
Values shown are reference data. Final equipment configuration and regional compliance are confirmed in the technical agreement.
| Parameter | Specification |
|---|---|
| Technical specifications | |
| Brand | LGMRT |
| Supply-table model | PST120H-CNIV |
| Current public model | ST120H |
| Drilling method | Surface top hammer |
| Hole diameter | 76–127 mm |
| Drill string | T45 / T51; 3,660 mm rods |
| Boom | Telescopic |
| Engine power | 177 kW, current public version |
| Rock drill power | 20 kW; 22 kW optional |
| Air system | 8.1 m³/min at 10 bar; 9.6 m³/min optional |
| Dimensions | Confirm by configuration |
Product details
A surface hydraulic top-hammer rig with a telescopic boom for expanded coverage and rapid positioning. The current ST120H page specifies a 76–127 mm hole range, Sandvik rock drill and 10 bar air system for mining, quarrying and construction work.
The telescopic boom increases positioning range while keeping the carrier in a stable working location.
Load-sensitive hydraulics and compressor management help match fuel use to drilling demand.
Safety and environmental systems are integrated for modern surface mine and quarry requirements.
Jobsite fit
Send us the target diameter, depth, rock hardness, altitude and local emission requirements. We will recommend the drill string, hammer and regional machine configuration before quoting.
Discuss your application →Heavy Rig support
We verify ground conditions, hole plan and production targets.
Drill tools, options, documents and delivery scope are locked before production.
Recommended startup spares and consumables help protect your first operating season.
Request a quote
Send your target hole diameter, depth, rock type and timeline. Heavy Rig will help narrow the configuration.
Heavy Rig inquiry