First zero emission Rig in the 100 tonnes class
Very low noise levels
1200kWh Batteries for a full working day

The Woltman 90DRe is the first zero-emission Drilling Rig in its class for building sites with the most stringent emission regulations.

This drilling rig was developed after intensive market research, with electrification based on capacity demand as the starting point. The varying energy requirements of different projects has been optimized by using two electric PM-motors, in combination with two battery units. As a result, the Woltman 90DRe is energy efficient and extremely powerful when needed.

Do you want to read more about the development of the Woltman 90DRe? Download the PDF on this page.

0 kWh

200kWh + 1000kWh battery capacity

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of CO2 emission saved per year

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Emission

Main features of 90DRe

Heavy duty, multi-functional Drilling Rig with very low noise levels
1200kWh (200kWh + 1000kWh) battery capacity
Charging time > 90% ca. 10hr
Energy efficient due to two-motor system
Simultaneous charging/discharging to charge internal battery
Working AND charging temperature -10˙C to +40˙C
Highest standard in safety, components and certification (TüV, Aboma)
Autonomous loading/unloading and leader erection without external battery/grid
Saves about 80 tons of CO2 emission per year
Based on the proven and robust 90DR

Go to the Woltman 90DRe

About the RIG

With a focus on Dieseko Group’s strategy of supplying zero emission equipment and in consultation with users and market-leading parties, Woltman developed an electric drive, control and power supply for its first electric powered Drilling Rig. The 90DRe is 100% electrically powered. With its electric-hydraulic power management this 613kW Drilling Rig is 100% emission-free.

Battery Capacity

Woltman investigated the required battery capacity based on logged data at construction sites. The result is a profile with 600kW power and 1.200kWh battery capacity. This capacity is more than sufficient for a full working day. Possible grid connection is only necessary during the heaviest working conditions, for charging in idle time, and to supply peak power. Otherwise, overnight charging should be sufficient for a new working day.

Woltman 90DRe

“This unique emission-free high power Drilling Rig provides a real USP when bidding in foundation projects with the most stringent emission regulations”

Go to the Woltman 90DRe

Watch the 90DRe in action

BAM deploying the new Woltman 90DRe at Schiphol International Airport for the first time.

FAQs

What distinguishes the Woltman e-rig from competitors?

Both manoeuvring and the crane functions are electric. The 90DRe is, therefore, 100% electrically powered. This makes the 90DRe the only 100% emission-free drilling rig for power up to 600 kW.

What does the electrical configuration look like?

The 90DRe has a smaller PM motor to power the undercarriage and winches. A heavier second PM motor is switched on, for example, during drilling activities requiring high-power. As a result, the machine has a very high energy efficiency.

Why does the Woltman have two battery packs?

The crane has a built-in battery pack of 200 kWh and a separate battery pack on the back of the crane of 1 MWh. The built-in battery allows the crane to trailer and erect the mast autonomously. The larger second battery pack provides power for production and is also a counterweight. The thermal architecture allows for fast and safe charging and ensures endurance in all conditions.

How long does the Rig run on one battery charge?

Woltman investigated the average power used in a working day by looking at logged measurements from construction sites. Based on this data, the required capacity was determined. The starting point for an “average workday” includes outputs of up to 400 kW and production of eight piles. The available battery charge in the 90DRe is more than sufficient to cover this. Grid connection is only necessary for much heavier work, to charge in idle time, and also to be able to supply extra power at peak powers. Charging overnight provides sufficient energy for a new working day.

Why are there still hydraulic attachments on an e-Rig?

These hydraulic attachments are included to still allow the customer to exchange attachments if desired and keeps the 90DRe multifunctional. Just like with a normal 90DR, the customer retains the option to use the machine for multiple purposes, such as for drilling, pile driving and vibrating.

Woltman is currently developing an electric RH-45-HS rotary head. With these new attachments the large PM motor in the 90DRe could be omitted.

What are CO2 emission savings?

One litre of diesel produces 2.6 kilos of CO2. Compared to this, savings can amount to 80,000 kilos of CO2 per year.

The world premiere of the 90DRe at Bauma

Here is the new Woltman 90DRe fully electric Drilling Rig. It provides benefits when bidding on foundation projects where limiting emissions is a priority.