We machine a wide range of steel and stainless-steel grades. As a TÜV-certified company in accordance with DIN EN 10204 – 2.1, 2.2 or 3.1, we are authorised to correctly transfer material identification markings.
This ensures that the material remains fully traceable even after machining.
Meeting agreed delivery dates is one of our highest priorities. Our delivery performance is regularly monitored and evaluated as part of our quality management system.
With an on-time delivery rate of 94%, we stand for reliable commitments, predictable processes and clear, binding communication with our customers.
With a total of 21 deep-hole drilling machines, our machine fleet gives us a high degree of flexibility in processing orders.
Capacity can be adjusted to meet demand, while short-notice requirements and machine downtime can be covered reliably.
For more than 70 years, we have specialised in deep-hole drilling and the precision machining of demanding workpieces.
As a third-generation family business, we stand for technical expertise, personal accountability and reliable cooperation.
Our quality management system is certified to ISO 9001 and covers the monitoring and documentation of our operational processes.
This includes an integrated measuring equipment management system that uses regularly monitored measuring instruments to ensure reliable and traceable inspection results.
Bore diameters below 70 mm
We drill small components with bore diameters of up to 70 mm on eleven machines.
Bore diameters from 70 mm
We produce precision bores from 70 to 850 mm in diameter on nine machines.
Square sections
We can also drill cubic workpieces and square sections with a central bore. Please contact us to discuss the technical details.
Precision even for one-offs
We also drill individual components and can combine the work with a wide range of services.
Cost-efficient production
Save on setup costs by having components drilled in series. We will be happy to advise you.
Profiling hole bottoms at great depths
We machine hole bottoms flat, with a radius or as a spherical-bottom bore. The image shows two examples: a 150 mm bore with a 75 mm radius, and a 120 mm bore with a 5 mm radius and a flat end face.
Would you like to learn more about the different drilling processes? Simply select one.
Drilling into solid material
For greater precision and/or larger diameters,
e.g. cylinders or rolls
The core remains intact
For pipes carrying liquids or gases
Kilian – over 70 years of deep-hole drilling expertise in steel
Our Langenfeld facility is located along the Rhine corridor, one of the main arteries of the steel supply network. Situated between Düsseldorf and Cologne, our company offers customers excellent transport links.
For more than 50 years, we have specialised in concentric deep-hole drilling in steel. This long-standing experience has established us as a reliable and capable partner to the mechanical engineering and steel industries.
Flexibility, fast response times and reliability are among the qualities that set us apart.
With 22 deep-hole drilling machines, we operate an extensive machine fleet and handle approximately 9,000 individual orders each year – from one-off components to high-volume production runs.
As a family-run company with 60 employees, we are one of the established specialist firms in our industry.
Our skilled workforce and broad range of machinery enable us to carry out a variety of production processes efficiently. Under our certified quality management system, every stage of production is continuously monitored by regularly trained specialists.
In addition to deep-hole drilling using the BTA process, we offer sawing, pre-turning, honing and pull boring of tubes. We machine workpieces up to 20 m long and weighing up to 50 tonnes.
