The Woltman 90DRe is the first zero-emission Drilling Rig in its class for building sites with the most stringent emission regulations.
- First zero emission Rig in 100 tonnes class
- Very low noise levels
- 1200kWh Batteries for a full working day
This drilling rig was developed after intensive market research and a unique starting point here is electrification based on capacity demand. The varying energy requirements have been optimized 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.
200kWh + 1000kWh battery capacity
Savings of CO2 emission per year
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 - +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
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.
Woltman investigated the required capacity based on logged data at construction sites. The result is a profile with 600kW power and 1.200kWh battery capacity. This capacity is sufficient for a full working day. Grid connection is only necessary during the heaviest working conditions for charging in idle time and to supply peak power. Overnight charging is sufficient for a full working day.
“This unique emission-free high power Drilling Rig provides a real USP when bidding in foundation projects with most stringent emission regulations”
BAM is deploying the new Woltman 90DRe at Schiphol International Airport for the first time.
Key differentiator when bidding on projects with the most stringent emission requirements
Woltman investigated the required capacity, based on logged measurements on construction sites. The battery is more than sufficient for a working day. 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. Overnight charging is sufficient for a new working day.
What distinguishes the Woltman e-rig from the competitors
Both manoeuvring and 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 is the electrical concept?
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 achieves very high 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 package allows the crane to trailer and erect the mast autonomously. The large battery pack provides power for production and is also a counterweight. The thermal architecture allows fast and safe charging and gives endurance in all conditions.
How long does the Rig run on one battery charge?
Woltman investigated the power used based on logged measurements on the construction site. Based on this, the required capacity is determined. The starting point is average work with outputs of up to 400 kW and production of eight piles. The available battery charge is more than sufficient for 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. Overnight charging is sufficient for a new working day.
Why still are hydraulic attachments used on an e-Rig?
The customer wants to be able to exchange attachments. Just like with a normal 90DR, the customer retains the option to use the machine multi-purpose for drilling, pile driving and vibrating.
Woltman is currently developing an electric RH-45-HS rotary head. With more newly to develop attachments the large PM motor in the 90DRe can be omitted.
What are the savings of CO2?
One litre of diesel produces 2.6 kilos of CO2. Compared to this, savings can amount to 80,000 kilos of CO2 per year.
This is the new Woltman 90DRe fully electric Drilling Rig. It provides true benefits when bidding on foundation projects with the most stringent emission regulations.
Video of the world premiere at Bauma.
Want our expertise? Connect with us!
Christian de Heus
Sales Manager Woltman