KLEMM introduces universal drilling rig in compact class – analysis of electrical potential

The Drolshagen drilling technology specialist KLEMM Bohrtechnik GmbH has presented a new universal drilling rig in the compact class. The equipment targets smaller construction projects and tight construction sites – a growing market in foundation engineering and specialized foundation work, where low-emission or electric drive solutions are increasingly required.

Compact class: Market and application spectrum

KLEMM Bohrtechnik is expanding its range for smaller applications with the new universal drilling rig. Compact drilling rigs are typically used for pile foundations, micropile work, soil improvement, and injection procedures. Demand for compact, easily transportable, and flexibly deployable equipment is increasing, particularly in inner-city areas where space, noise emissions, and logistics are limiting factors.

The new rig is designed as a universal platform that should cover different drilling techniques – rotary drilling, casing, and grouting. This positions KLEMM against competitors like BAUER Maschinen and Liebherr, which also offer compact rotary drilling rigs for specialized foundation work.

Technical innovations and drive concept

Details on motorization, drilling depth, torque, and operating weight are not yet publicly available. Industry standards for the compact class include diesel-hydraulic units with power outputs between 50 and 100 kW mounted on crawler or wheel chassis. Critical for practical use are maximum drilling depth (typically 15 to 30 meters for compact rigs), the available torque of the drilling axis, and transport width for narrow access roads.

KLEMM has increasingly invested in modularity and digital control systems in recent years. Modern compact drilling rigs are increasingly equipped with telematics systems that record operating hours, drilling parameters, and maintenance intervals – an important factor for fleet managers and purchasers in calculating return on investment.

Electrification: Opportunities and challenges

Electrification of construction sites is still uncommon in specialized foundation work. While series electric models are already available for mini excavators and compaction rollers, drilling rigs pose special demands on battery capacity and charging infrastructure due to their high power peaks and continuous load.

An electric compact drilling rig would typically need to be equipped with 100 to 150 kWh of battery to handle a half to full shift. Charging time at three-phase AC (22 kW) would take several hours – a logistical problem on construction sites without stationary infrastructure. Hybrid solutions using a small diesel or gas generator as a range extender could be more practical for the transition period.

KLEMM has not yet announced its own electric drilling rigs, but is monitoring market developments. Manufacturers like Liebherr and BAUER are already testing prototypes with electric and hybrid drive.

Positioning against competition

KLEMM Bohrtechnik is an established specialist for medium-sized and compact drilling rigs in Germany. The new model could position itself against the compact rotary drilling rigs from Liebherr (LB series under 20 tons) and BAUER (BG series compact), both of which have been on the market for several years.

Purchase costs, ease of maintenance, and availability of spare parts will be decisive for market success. In the compact class, local service networks also play a major role, as many companies do not maintain their own workshops for specialized equipment.

Conclusion: Potential for electric variant

KLEMM's new universal drilling rig addresses a growing market for flexible, compact equipment in foundation engineering. For long-term competitiveness, it will be crucial whether KLEMM develops emission-free or low-emission drive variants in parallel. EU Stage V is just the beginning – many municipalities are already specifying emission-free construction sites today, particularly for inner-city infrastructure projects.

An electric or hybrid variant of the compact drilling rig could give KLEMM a competitive advantage, provided the technical challenges in battery capacity and charging infrastructure are solved. Until then, the new model remains a conventional but necessary addition to the product portfolio for the growing market of tight, emission-sensitive construction sites.