Cerjak d.o.o. is a family owned business based in Leskovec pri Krškem, Slovenia. The company was established by Ivan and Jožefa Cerjak in the year 1979, presently managed by the 2nd generation.

In 1995 Cerjak d.o.o. successfully started with the production of holders for the automotive industry. Currently the company produces plates, base plates, covers, housings and holders for diverse industries. We also produce PTO drive shafts which carry our brand name Cerjak KG.

Our strength lies in knowledge. We ensure our customers, according to their requirements, a whole portfolio of technological solutions. Technological operations are managed as follows: surface milling (2 ½ D), deep hole drilling, shaped thread, broaching, welding of aluminum and anodizing. The unique technological specialization, we are especially proud of, is our deep hole drilling technology.

The use of the world’s best state-of-the-art information technology CATIA, Pro|ENGINEER, Mastercam and modern CNC processing centers DMG, Mazak and Okuma are therefore essential in construction, programming and designing.

Among our many attributes enabling us to accept these demanding challenges are:
• Flexibility – we adapt to demands in order to fulfill expectations,
• Innovation – providing new solutions according to specific demands,
• Agility – best solutions implemented as soon as possible,
• Partnership – customers are our top priority,
• Own development, production and making of highly accurate clamping devices,
• Use of state-of-the-art technology to offer a state-of-the-art solution,
• Reliable and proactive suppliers, considering customers' and our own demands while searching for an optimal solution,
• Permanent investment in development,
• Excellent record in cooperation with educational institutions.

All processes and procedures are performed in our company. This is also one of the reasons why we have become the first choice of demanding customers and clients. It would be a huge gratification to count your company amongst them!

Certinvest owns a mechanical workshop for the production of complex parts such as bottles blowmolds, extrusion screws and dies, injection molds parts, etc. with over 25 years of experience.
The workshop is equipped with 3/5 axis machining centres, milling/turning machines, grinding machines, measuring machines, all of them with German origin (Deckel).

Company from Slovakia, we offer services in the field of machining - milling, turning, drilling, parts made of different materials - aluminum, stainless steel, steel, plastics .. We manufacture individual parts, small series and series parts. We export 70% of our production to Germany, so we can offer good quality and delivery deadlines.
Our products at www.ce-tech.sk

CNC Feinmechanik Berlin e. K. has been manufacturing high-precision turned and milled parts of all kinds for more than 40 years, supra-regionally and across all industries, and specializes in precision mechanical components and small and medium series. We distinguish ourselves by a high quality standard and our reliability. Our customers can rely on maximum flexibility even in the event of unforeseen changes. Our extensive machine park also allows us to manufacture complex sample parts and individual parts with great precision from all machinable non-ferrous metals, steels, plastics and magnesium alloys according to your technical drawings and specifications.

We specialize in manufacturing simple workpieces to complex turned and milled parts with the greatest precision. Prototypes and individual parts are produced in small, medium and large series, including their surface treatment and refinement.

Our machinery ranges from saws and automatic lathes to state-of-the-art 5-axis CNC milling centers and covers an area of approx. 2,500 m².

With the use of CAD/CAM programming (Siemens NX), we achieve maximum accuracy and cost-effectiveness in the manufacture of your precision parts.

In order to accompany you throughout the value chain, we expand our core competencies with a network of long-standing partners from the region.

We also offer all services in the field of sheet metal processing and the associated surface treatment and finishing.

In addition, we take over the assembly of components and assemblies for you. We have been working closely with our partner OLPE Jena GmbH for many years for the assembly of complex assemblies and systems, especially under clean room conditions.

From the idea to the product, everything from a single source.

We offer the following services:
-Piping construction (water, steam/condensate, compressed air) certified according to the Water Resources Act
-Industrial repairs throughout NRW
-Repair and overhaul of pumps, valves and motors
-Apparatus construction, especially for the textile, paint and chemical industries, but also in many other areas
-Modification and new construction of yarn carriers
-Welding work in various areas, our welders are all TÜV-tested
-All metal construction work

Our goods are delivered worldwide!

CGS Srl is born as artisan company at the end of the sixties to assume, more and more, in the years a real industrial structure; currently it occupies an area of 1500 square meters where work about twenty employees.

CGS manufactures a wide range of products including precision components and small parts, drawing fittings for the earthmoving industry, agricultural machinery and oleodynamic systems, as well as components ready for a wide range of industries; They complete the range of transmission organs such as angle heads and jacks and magnetic devices, solenoids and rigators.

Thanks to decades of experience and the sensibility and attention for the demands of the clients, CGS Srl is able to offer personalized solutions and high quality by ensuring advice and assistance in the phase of pre-sale until delivery.

The technological adjustment and the continuous search of operation models more and more to the state-of-the-art allow CGS to propose to the own clients efficient and effective solutions both beginning from the particulars present in catalog and beginning from the sketches and from the specific applications of the clients. This approach based on the support to the client and aimed to the flexibility allows CGS to affirm its own presence on the Italian and European market more and more.

Turning, finishing and treatments

CGS is equipped with two production units that perform all the necessary turning operations, organizing overlapping production to ensure a total daily production capacity of approximately 60,000 hours on 17 turning centers.
CGS Srl is able to realize precision components with diameter between 3 and 70 mm; the worked materials embrace the whole range of the automatic steels,from reclamation, cementation and good part of the stainless further to brass, aluminium, bronze, copper and plastic materials.

Finishing works

CGS also has a specialized department in the following stages of finishing:
- Reaming, Tumbling, Milling with No 2 vertical machining centers, Lapping, Countersink, Deburring, Surface rolling, Assembling with the possible management of commercial components or supplied by the customer, Micropunting Marking.

Grinding processes

The department designated about grinding works performs the following manufacturings:

- Centerless and Plunge grinding with tolerance of 3-5 microns and roundness of 50% tolerance
- Grinding on centers, surfaces, centerless and superfinishings where tolerances are outside of what we can obtain internally.

CGS guarantees accurate control of the quality of the works implemented, and therefore of the finished detail delivered to the customer.

Washing the parts with ultrasonic and vacuum technology

- For all the details that need to treated, they are washed at the CGS production department, before starting the external treatment required to obtain the best result in terms of quality and efficacy of the treatment itself;
- All untreated ferrous items are delivered after a suitable washing phase during which a protective substance is applied, with a guaranteed 3-month standard length, which can be extended on request.