DINAMIC SRL - full solutions for the development and manufacturing of plastic articles

Romanian dynamic companies

DINAMIC SRL - full solutions for the development and manufacturing of plastic articles

We began our activity modestly in 1991, with two low capacity injection machines. Year after year, we invested in injection and extrusion-blowing machines, regular milling and cutting machines, mechanical presses, grinding machines, and then state of the art machines for mechanical processing (machine tools and CNC electro-erosion processing machines).

Last year, in 2014, we implemented a major investment project funded under EU grants. Despite initial apprehensions, the success of this project on our own, without the assistance of specialists trained in the design and preparation of projects, makes us encourage others to develop businesses using European money, because it’s worth it and can be done.

As far as we are concerned, except some delays in assessing the project and communicating the result, there were no other major obstacles. It goes without saying that it wasn’t easy, but it was worth it: the grant component weighed a lot in the financing of the project, and the cutting edge machines that we are using now cut our energy costs and increased our productivity and product quality.

The main activity of the company is the manufacturing of plastic articles. We are using advanced injection machines, with varied technical features and injection capacities from 1-2g to 1500 g (photo 1). The training over time of good specialists, combined with constant upgrading and investments in advanced equipment oriented us towards highly technical components (parts for the automotive industry, power networks, medical equipment, advertising materials, etc.), the beneficiaries being well-known companies in their respective fields.

From the drawing board to mass production

In our vision, mass production is only the last stage of a successful project, albeit a very important one, because it is the pinnacle of all the work carried out beginning with the drawing board. This is actually the main idea behind our policy, that is to develop the product from scratch to delivery and to integrate all the stages: idea, 3D design, prototyping by 3D printing, prototyping by injection moulding (when applicable), design of matrixes for mass production, simulation of mould filling, mould building and, in the end, mass production. It’s a simple idea, but fixes a lot: we have the entire process under control, and the customer is no longer in the position to treat separately with a designer, then with a mould supplier, and then with a plastic processing plant. That means more time saving for us and less expenses and strain for the customer.

  •  PHOTO 1. Plastic injection machine

By developing these two new activities, we managed to: manufacture moulds, engineering in the field of plastics by investments in technologies and human resources alike, to develop the product from the drawing board to delivery. On demand, we also provide pad printing services, mould maintenance, assembly, tests and trials in or laboratory (photo 2).

  • PHOTO 2. ICT machine

Developing a product from scratch requires the following stages, according to its complexity:

  • Establishing the product requirements

The following are established: aspect, functional parameters, sizes, material, colour, etc., as well as the fabrication deadlines. In any new project, our role is to identify the requirements of the customer, to propose new ideas and suggestions which may overcome constraints and ultimately improve the final product.

  • Design (3D modelling)

The requirements come in the shape of a design (3D model) or physical design, 2D drawings, drawings or oral description. Before the design stage, and for some complex projects, even in the procurement stage, we use mould filling simulation (photo 3). This stage is very important for guaranteeing the functioning of the injection moulds from the very first attempt. Thus, the delivery deadline and cost estimates are complied with, avoiding corrections to the injection system or the cooling system. Moreover, one can estimate the contractions, the distortions after extraction from the mould or the injection defects, such as welding lines or lack of ventilation. The mould filling simulation (CAE) is carried out using finite element analysis (FEA), with databases containing more than 5000 plastic materials, hundreds of materials for mould fabrication and the operational parameters for most of the injection machines currently used. The design environment used is Creo Parametric (Pro E), but we can exchange information with all the collaborators having a 3D design system.

  • Fabrication of prototypes

This stage is optional and usually recommended in the following situations:           

- complex products requiring special assembly or testing (mechanical resistance, electrical insulation for high voltages);                                   

- dimension drawings or presentation products, where physical shape has a higher impact than 2D or even 3D drawings;

- small series of parts which do not justify the manufacturing of highly complex matrixes, even if the price of parts injected in prototype matrixes is much higher.

We can manufacture prototypes in the following variants:

1. 3D printing (stereolithography); obtaining the product without a matrix. The parts are very useful for dimensional assessment, for assembly trials, aspect assessment, etc. The material is similar to ABS.

2. The preparation of a prototype matrix, that can be used to manufacture small series, parts that can be subjected to all trials, corrections and even major modifications can be made, everything at a lower cost than with a mass production matrix. All materials can be injected, the only current limitation being the parts size (max 200x100x70 mm).

  • Manufacturing of moulds, matrixes and devices

We produce highly complex moulds (matrixes) sized approx. 800x600x500 mm (photo 4).In most cases, we produce the designs of the matrixes we work with. To process moulds and devices, we use modern CNC cutting and electro-erosion machines (photo 5).The fabrication period of a matrix is 3 to 6 weeks from ordering, depending on complexity.

PHOTO 4. 12 cavities injection mould

PHOTO 5. Electro-erosion machines with massive electrode

This is followed by tests and trials on the products, validation of the preparation for fabrication and of the parts (type-approval), fabrication of the “zero" batch, then introduction in mass production.

Always close to our customers

Our mission is to provide our customers with quality products, enabling us to become a reliable and preferred supplier of injection moulded plastics and injection moulds. We believe that quality is the most important competitive asset. We manage the requirements of our customers with the utmost seriousness and professionalism and strive to give top value to all our delivers. Our competitive advantage consists in short reaction times, elimination of additional links (transport, documentation, communication), corrections and real time revisions, maintenance for the remaining operational matrixes.

SC DINAMIC SRL is developing on the basis of the Sustainable Development concept, translated into the focus on customer expectations and protection of the environment. for this, we decided to implement the Quality-Environment integrated mana­gement framework (SMI), based on the SR EN ISO 9001:2008 and SR EN ISO 14001:2005 standards, a system that has been under operation since 2006.

The recipe for success consists in giving all due respect to customers and own employees, those who make everything possible by fully assimilating the company culture. Building the loyalty of employees, promotion to management positions of in-house employees, moral and material support, good working conditions are permanent concerns of the company management.


Rodica DRUGEA is Dinamic SRL Economic Director



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