Shafts
Turned, ground and heat treated. Lathes up to Ø800 × 5,000 mm.
Precise. Flexible. Solid.
Machining and welding to customer specification. 35 years of experience.
KONTO-N Ltd. is a Bulgarian machine building and welding company, established in 1991. We make shafts, gears, spare parts and welded assemblies to your drawing, in small and large series.
Since 1991Machine building and welding
9,800 m²Workshops in Pernik and Ruse
20 tCrane capacity in Pernik
ISO 9001 · 3834-2Certified by RINA and IQNet
1 working dayTo answer your inquiry
About KONTO-N
A Bulgarian machine shop built on long partnerships
KONTO-N Ltd. was established in 1991. We operate machine shops in Pernik and Ruse, with highly qualified specialists and a machine park for turning, milling, gear cutting, grinding, deep-hole drilling, welding and heat treatment.
Every offer is individual and based on your specification. We work with clients of different sizes, from small series to large series production, and we are known for flexibility and quick reaction.
- Pernik machine shop
- 7,800 m² · 20 t crane
- Ruse workshop
- 2,000 m² · 5 t crane
- Covered storage
- 1,500 m² · 12.5 t crane
- Largest client
- 20 years with ELIN Motoren
What we make
Made to your drawing, from single parts to large series
Spider shafts
About 150 per year for wind generators.
Gears
Gear cutting and gear shaping to your specification.
Reducers
Gear reducers to your specification.
Welded assemblies
Steel structures and welded parts. Welders certified to EN ISO 9606-1.
Spare parts and repair
Spare parts and repair of rolls and other metallurgical equipment.
Hoisting equipment and sieves
Hoisting equipment up to 160 t and vibratory sieves.
Small and large series
Series production to drawing, from a few pieces to large volumes.
Also in house:
AnnealingFlame hardeningInduction hardeningSurfacingSandblastingPainting and packing on request
Industries
Industries we supply
We supply manufacturers and plant operators across heavy industry, in Bulgaria and abroad.
- Heavy engineering
- Power engineering and energy
- Ferrous metallurgy
- Non-ferrous metallurgy
- Steel and metal plants
- Mining
- Machine and plant builders
- Tooling
- Chemical and cellulose
- Food, wine and tobacco
Machines and facilities
Two workshops, one machine park
Machining, welding, heat treatment and sandblasting in house, so your parts move fast between operations.
Pernik
Main office. 7,800 m² machine shop with a 20 t crane, plus 1,500 m² covered storage with a 12.5 t crane.
Ruse
2,000 m² workshop with a 5 t crane. Registered office.
Machining
| Lathes | up to Ø800 × L 5,000 mm |
|---|---|
| CNC MAZAK with milling head | up to Ø550 × 3,000 mm |
| SHW CNC milling machine | table 2,500 × 800 mm, travels 3,000 × 1,000 × 700 mm |
| Cylindrical grinding | up to Ø560 × L 4,000 mm |
| Deep-hole drilling | up to Ø250 × L 4,000 mm, hole depth up to 2,000 mm |
| Gear cutting and gear shaping | up to module 6 |
| Band saw | round up to Ø450 mm, profiles up to 600 × 600 mm |
Welding and heat treatment
| Welding machines | 500 A |
|---|---|
| Sandblasting chamber | 6,000 × 2,500 × 2,000 mm |
| Hardening section | 2,000 × 3,500 mm |
| Annealing furnace | 5,700 × 2,000 × 2,000 mm |
| Flame hardening and surfacing | up to Ø500 × L 2,000 mm |
| Induction hardening | up to Ø380 × L 2,000 mm |
Showcase
Recent work from our shop floor
Quality
Certified quality you can check
Our quality management system is certified to ISO 9001:2015 by RINA and IQNet, and our welding to ISO 3834-2:2021 by RINA. Our welders are certified to EN ISO 9606-1:2017.
When your specification requires it, we issue a quality certificate with the delivery. In case of a complaint, we repair the part or make a new one at our own cost.
Best Supplier 2017 · ELIN Motoren
“For best improvement with regard to quality and performance.”
Awarded by ELIN Motoren, Austria, our partner for 20 years.
Clients
Trusted by industrial companies across Europe and beyond
ELIN MotorenAustria
HitzingerAustria
BruvalBelgium
Suzlon GeneratorsIndia
Stomana IndustryPernik, Bulgaria
Aurubis BulgariaPirdop, Bulgaria
KCM 2000 HoldingPlovdiv, Bulgaria
ShamotElin Pelin, Bulgaria
Get a quote
Send us your drawing
Tell us what you need and attach your drawing. We prepare an individual offer and answer within one working day.
- Answer in English, German or Bulgarian
- Single parts, small and large series
- Quality certificate on request
Contact
Talk to our sales team
We answer every inquiry within one working day.
Locations
Bulgaria
Pernik, main office and machine shop
1 Vladaysko vastanie St., 2304 Pernik
Ruse, workshop and registered office
11 Potsdam St., 7001 Ruse