GTK-Prototype UG was founded in 2014 by Tobias Günther and initially dealt with rapid prototyping machines.

Over the years, CNC milling and turning as well as assembly and development work were added due to customer requirements.

GTK-Prototype develops and designs on behalf of customers as well as internally using the most modern CAD systems such as Solid Works, Autodesk Inventor, Fusion 360 and others and inserts them into a comprehensive CAM system.
Through the production of prototypes in medical technology, mechanical engineering and the automotive sector, GTK-Prototype was able to acquire extensive experience in manufacturing.

In 2018, the production option laser cutting was added.

GTK-Prototype is currently based in Neuhausen near Tuttlingen and will move to the newly built company location in Radolfzell in the course of 2022.

We manufacture according to drawing individual parts, small series and large series from all machinable materials.

Also available with milling, hardening, grinding and surface finishing (Blacking, Phosphating, anodizing, etc.) by our strong cooperation partners.

A selection of our specialties:

Aircraft steel
high-strength steels
Hard turning
Sintered materials
Non-ferrous metals: aluminum, copper and brass
Plastic
Eccentric turning

Workpieces

In feed: up to 200 mm in diameter and up to 30kg
From bars: 2 mm to 65 mm diameter
Machining length: up to 400 mm

Machinery

20 CNC lathes in a DNC network interconnection
Up to 24 driven tools
C-axis
Y-axis
B-axis

GWL is a medium-sized 3D printing service provider that, in addition to the industrial production of prototypes or series, also takes on the development or 3D printing optimization of your projects.

About us
With our industry expertise, we can help you successfully and promptly implement your production project for mechanical components, assemblies, and housings for small to medium-sized series.

For more than 20 years, we have been experts in die casting, injection molding, and other mechanical processes. Our focus is on cross-process thinking.

In Germany, Europe and Asia (in-house certified production) we manufacture your mechanical components, assemblies or housings.

Our manufacturing services include:

Engineering: Technology consulting (wide range of materials and manufacturing processes); CAD evaluation, construction & development

Prototyping (close to series production; 1,-3,000 pieces) for die casting, injection molding, precision casting, sand casting, PA casting, vacuum casting, CNC milling, SLS & SLY

Series production for batch sizes of up to 25,000 units

Metal: aluminum die casting, zinc die casting, deep drawing, gravity die casting, sand casting
Plastics: injection molding, thermoforming, extrusion
Our Services:

Project-related surface finish
Coordination of the entire production project
Advice along the value chain
Assembly service, measurement reports
International logistics service

SC. HCV TECHNOLOGY SRL is a company with full private capital estabilished in 2018, the main objective is “General mechanical operations”.

We have implemented a quality system thet supports quality manufactured products, on time deliveries along with high qualified personnel. The professionalism of the workers is the business card of the company.

We offer the following services: milling, turning, CNC programming, design 3D and 2D and also heat treatment operations done in collaboration.


The range of materials that can be processed are: steel, alloy steel, tool steel, stainless steel, aliminium and aluminum alloys, copper, copper alloys, teflon, polyamide, PVC, polyethylene, etc.



We want long term relationships with our partners.

For offers and orders please contact us at the email address: office@hcv-tech.ro or telephone number +40 769799423 Monday to Friday between 9:00-17:00.

Development - Design - Manufacturing - Service

Whether prototypes, small batches or CAD data: The quality of the products and CAD data is our top priority.

Shortest official channels for quick solutions: Talk to us, even if your delivery date is very short. True to the motto: “It doesn't work, doesn't exist.”

Every customer is individual. Your requirements and wishes are important to us. We always follow the same approach: “There is a solution for every challenge. ”

The Heinz graves GmbH is a small company in 71397 people stream and produces molded rubber products and rubber-metal connections for reputable companies in the engineering, automotive and medical.

According to drawings or samples we produce parts from all elastomers in various manufacturing techniques such as printing presses and transfer presses.

From about 2000 different compounds, we can offer you the optimum solution for all types of rubber molded articles.

Our partners and suppliers is the rubber plant Kraiburg GmbH & Co.

Participation in the development

Working with your engineers and technicians, we develop tailor-made parts in order production, change and vary until the parts meet all special requirements.

Assistance in material selection and design of components.

We are your partner when it comes to the mass production of larger numbers but also when small quantities or one-off productions are in demand.

Our dedicated, experienced and motivated employees are the key to our success and our guarantee of good quality.

Thanks to our lean operating structure, a fast and flexible order processing is possible.

The main customers are industrial clients in engineering and have decades of customer base of Heinz graves GmbH.

The H & H GmbH offers in its two business units H & H H & H innovation and smart products all the services needed an idea on the way to series production. We develop, build prototypes and simulate, test and then produce the shape idea made in production quantities. A particular strength of the H & H GmbH is the production of products, such as technically sophisticated plastic parts that are needed in small quantities. Our customers come from the industries such as automotive industry and suppliers, medical, bathroom and toilet facilities.

In all stages of the process H & H is exclusively committed to the customer. We provide our expertise available to ensure that your product idea to market success. During the development, we have the later manufacturing processes in mind. We design manufacture and assembly meet and focus when needed at our manufacturing facilities. So we minimize during development cost and achieve the highest quality standards in the later series production.

In recent years, then came the expansion of the plastic molding and an extension of the value spectrum for surface finishing as well as parts and assembly - Since 2009 we provide service & maintenance of photovoltaic-scale plants at

H & H is divided into two business areas:

H & H Innovation:
Is your partner in the product development process

Development: CAD CATIA V4/V5 - NX - Simulations / FE calculations - patent search - assistance in patenting / intellectual property rights management

Prototype: STL / SLS - Vacuum casting - RIM - milling models 3-axis and 5-axis

Testing: wind tunnel - Climatic tests - measurements - stress tests

Pre-series: Teaching and fixtures - Prototype tools and parts - plastic and metal parts - assemblies of assemblies, components and systems

H & H Smart Products
Is your partner for assemblies, components and systems for complex, technical