DESIGNING IS OUR GAME
The second Czech wheel excavator K100 was dispatched in a short space of time to the North-West VKD chalk quarry. It was planned and designed by the NOEN company and is unique because it is the smallest of the machines offered. Moreover, this is the first machine of this development series.
The German customer received the first excavator (marked as K100.1) last autumn. The second one (marked as K100.2) was delivered, in accordance with the concluded agreement, recently, at the beginning of 2015.
Compact wheel excavator K100 was designed by NOEN designers for the specific conditions of the chalk quarry. The composition of rocks in the quarry mostly includes chalk with layers of flint. Material is excavated by means of wheel buckets, the wheel is driven by an electromechanical drive. The removed material travels from the wheel along the conveyor belt through the bucket wheel boom to the loading boom, then continues on a subsequent long-distance belt conveyor.
The entire machine is placed on a crawler undercarriage that is capable of turning 360°, and is driven by hydraulic drives. Just as the loading boom so the lifting system for the bucket wheel boom is hydraulically driven. The excavator has a central lubrication system, and can be transported as a whole without having to dismantle the individual components.
The first excavator (K100.1) worked in the North-West quarry for almost half a year. “The machine has done a great job. It works in difficult conditions, almost one hundred meters below sea level, and works very reliably. Moreover, it is more efficient than existing excavators.
During the autumn and winter months, the machine saved ten percent of the energy, after averaging with the summer months even greater savings are expected. The tooth wear of the individual buckets is one-fifth compared with the previous mining,” Heiner Gers, director of the VKD quarry, described the existing positive reference.
Delivery of both excavators is important not only for the NOEN company, but also for the whole Czech Republic which had been waiting for a similar contract since the 1980s, i.e. three decades. The NOEN company won the contract in the standard tender with extensive international competition that is worth several tens of millions of crowns.
“The price and capabilities of our engineers were the decisive factors. Design capability for the construction of the wheel excavator ranks NOEN among a small group of a few companies in the world,“ said Kateřina Rosová, the NOEN spokesperson. The companies that are part of the NOEN holding (Elektroprim Koutník, SEA) were responsible for the actual production of the machines and also the company Teplická strojírna.
The NOEN company has grown exclusively on the Czech market and in recent years is heavily investing in the development of its foreign business. The project of these two bucket wheel excavators is the first concluded contract for the supply of the final product to the foreign market. Till now, the company had only sold engineering hours.
The main technical parameters of the machine K100:
Total weight approx. 71 t
Theoretical capacity of machine 120 t/h
Min. /Max. ambient temperature -20 / +35 °C
Material excavated: Chalk CaCO3
Contamination: flint layers
Consistency: 126 kN/m²
Modulus of rupture: 100 MN/m²
Specific weight of natural material: 2 400 kg/m³
Specific weight of loose material: 1 600 kg/m³
Output grain size: 0 up to 300 mm
Max. moisture of soil excavated: 5 up to 25 %
Belt width: 800 mm
Input voltage: 400 V
Block height: 6 m
Block width: 8 m
Wheel diameter: 4 100 mm
Type of wheel drive: electromechanical
Output of wheel drive: 90 kW
Bucket volume: 100 dm3
Length of bucket wheel boom: 6 000 mm
Length of loading boom: 11 000 mm
Minimum height of discharge lead-in: 1 500 mm
Maximum height of discharge lead-in: 4 000 mm
Maximum operating inclination: 1 : 20
Maximum transport inclination: 1 : 10
Maximum wind velocity at work: 20 m/s
(C) 2024, NOEN, a.s., Všechna práva vyhrazena, vytvořilo grafické studio Amadeus 
