We are Mouldmaking and plastics enginneering company located in Portugal.

We can deliver molds to your Company, with Quality, reliability and good prices in order to give you competitive advantage in today’s markets.

We offer you, loyalty, commitment, security, confidentiality, according to the stringent demands of your business.


Exchanges of know-how on plastics injection and moldmaking insure the best technical solutions to each part.

We present our company in the field of mold and tool making, founded in 1997 and restarted in 2012. We have many years of extensive experience, from planning and organization through construction to the manual and machine production of investment casting and injection molds.
At the moment we have four employees - an increase in staff to seven to eight employees is planned for the future.
Skrotzky Formenbau works with the latest CAD / CAM technology in conjunction with the latest CNC milling machines, which enables us to manufacture components with freeform surfaces and volume models of the highest complexity and difficulty.
Future-oriented thinking and working is our goal. The company is therefore modernly equipped and technically up to date.
Our machine park in toolmaking:
MIKRON machining center 1000Pro
MIKRON machining center 800Pro-X
AGIETRON eroding machine
 Maximum mold weight: 1.5 ton
In addition, Mr. Patrick Skrotzky has owned a high-precision 3-D printer since 2018. This manufactures prototypes and series parts for the investment casting and automotive industries.
In addition, we are planning to purchase a 3D coordination measuring device to create
3-D measurement protocols and direct 3-D target / actual comparisons.
Our excellent know-how and many years of experience (40 years) in the investment casting area, as well as the modern equipment of our company, are the basis for constant quality at the highest level. This is also guaranteed for the future - Mr. Patrick Skrotzky will take over and continue to run the company.

We, the Skrotzky GmbH, a company in the area mold and tool, whose team has many years of extensive experience of the planning and organization of the design to the manual and mechanical production of investment castings and injection molds has.

In the field of plastics technology, we manufacture products for various industries, especially for demanding areas such as automotive, medical and electrical engineering. Our product range includes high-quality components - among other visible parts, highly polished parts and white parts. These plastic parts can we printed by pad printing, assembly, etc., are supplied in small and large series.


We address the ever-increasing demands through constant training of our professional staff, advanced computer and machine technology to deliver impeccable quality products. This proves the certification since 2002 by TÜV Rheinland Cert GmbH, in accordance with DIN EN ISO 9001:2000.

If you have any supply shortages caused by your supplier - we'll help you out! By flexibility, we are able to quickly realize new orders and fulfill your wishes.

Its great advantage in working with us is that you get everything from one source:

- Development, design, mold making, plastic molding and final assembly

We appreciate your interest in working with us. We are happy to arrange an appointment for a personal interview with you.

Visit for more information visit our web site at: www.skrotzky.de.

Development and manufacture of electromechanical connection technology in OEM relationship



Connector Systems
Custom electro-mechanical components
Valve plug
Pinheaders
Spraying and punching tools
Fieldbus
Test & Measurement - Article

Construction: Development of injection molds, turntables and turnaround units

Optimization and analysis of plastic parts with Autodesk Moldflow
1 team - 9 people, consisting of toolmakers, technicians and technical product designers
Project support up to series approval
Construction of about 60 tools per year
Our specialties:
Multi-component molds
Index Tools
Stack molds

injection molding
Production of small series and series in three-shift operation
30 employees
Modern Arburg and Demag machine park with 15 machines
1200m² production area
2200m² storage area

The company is a family-run company since its inception. SLG Kunststoff GmbH is characterized by its flexibility and performance. SLG Kunststoff GmbH currently employs more than 200 employees and an annual turnover of EUR 50 million.



The company provides complete project know-how for the production of technical plastic injection molded parts from a single source. The offer ranges from product design and product development through prototyping, construction, design and construction of the molds to the series injection molding and the downstream assembly and surface finishing. With more than 30 injection molding machines with a guard of 25 to - 1500 to the company now manufactures approximately 1,200 different technical parts and Montaqgebaugruppe.

- SMK Röhrsdorf GmbH -
Equipped with advanced CNC machines:
- Milling up to 5 axes
- Turning up to 4 axes
- Milling on the Horizontalbohrzentrum
- Schleifen/Koordinaten-, round, profile, surface grinding
We perform CNC precision machining of metal and plastic
We manufacture single and serial parts according to your drawings and samples.
Be processed:
- Eg steel 1.0037 / 1.0503 / 1.0570 / 1.0601 / 1.0715 / 1.2067 / 1.2379 / 1.7225
- Stainless eg 1.4301 / 1.4305 / 1.4571, Cast eg GG-25 and 0.6025
- Non-ferrous metals, aluminum, for example, 3.1645, 3.2315 / copper / brass / bronze
Program of delivery
- Prismatic drilling and milling parts
- Turned parts
Part name, among others
Caliper lever / housing / cover / gripper jaws / flange / carriage / conical ring / mold core /
Cam / arbor / spindle / hot runner bar / piston / sleeve / disc / grinding arbor /
Cylindrical roller

Heat treatment processes and surface coating
Our services are completed with required heat treatment processes, forB.
Carburizing, nitriding, nitro-carburizing and through the most common method of surface coating such as bronzing, galvanizing, thick-film passivation, chrome plating.

- SMK V-Factory -
Injection molding parts

Equipped with modern injection molding machines 8
We manufacture plastic parts, from the small gear (1 g) up to the order of a panel for computer case (1000 g).
Our injection molding machines have a locking force 25-420 t. They are equipped with central drying and material supply, handling systems and ink metering devices.
Program of delivery
It will process all commercial thermoplastic plastics.
for example PP / PA 6, PA 66 (reinforced / unreinforced) / POM / PC / ABS / PE

Our scope of services includes pattern pieces, small and large series and subsequent assembly work through to tailored delivery.
Part name, among other things:
Housing / cover / gasket / connector / File / Control / switching element /
Hinges / cover / trim
With our mold in the house, we can respond immediately to any changes and ensure optimal maintenance of the molds.
Through our extensive range of services we are able to take on tasks from design to complete product.

- SMK V-Factory - plastic injection molds
We specialize in design and manufacture of plastic injection molds up to a size of 1100 mm x 800 mm x 700 mm and a weight of up to about 3 tons.
With the long experience of our designers and programmers, supported by modern construction systems such as Unigraphics in the 3D area and Euclid in 3D programming, we implement even the most complex requirements.Our powerful CNC technology, including in the process wire and sinker EDM, milling, HSC milling, grinding as well as the experience of mold makers since 1991 ensure rapid and complete production runs.
The mass production and prototype molds are patterned in our injection molding machines and, if necessary, we assume the pre-series and series production of plastic parts.

Industries (applicable for the entire group SMK)
Engineering / Special Engineering / Valve Industry / Drive and gear engineering / automotive industry / Apparatus / equipment / Automation Technology / Control Engineering /
Agriculture and forestry machinery / piping engineering / environmental / medical /
Energy Management / railway technology / food technology

Quality (applicable for the entire group SMK)
Certified quality by qualified employees and structured pr...

"If you stop wanting to get better,
stop being good. "
Marie von Ebner-Eschenbach

True to this motto, SMK Schweitzer has been a successful service company in the field of model and prototype construction as well as plastics technology for decades.

We have specialized in the production of development and pre-series parts, among other things, have modernized our machinery over the years and have continuously expanded our range of services for our customers.

We can now count international companies such as automobile manufacturers or large corporations among our satisfied customers, and we would be happy to add you to this list soon.

We invite you to get an overview of our wide range of products and our machinery on these pages and we look forward to hearing from you soon.