How do you ensure quality and compliance?

Quality and compliance are central to everything we do at Rosti Group. All of our 12 manufacturing facilities operate under internationally recognised certifications, including ISO 9001, ISO 13485 (medical), ISO 14001, and ISO 50001, ensuring rigorous standards for quality, sustainability, and energy management. Our teams follow robust quality assurance processes, including advanced product validation, in-line inspections, and traceability systems to guarantee consistency and reliability across every production run. For highly regulated sectors such as medical devices, automotive, and consumer goods, we ensure strict adherence to industry-specific standards and regulatory requirements. Through continuous improvement programmes, data-driven monitoring, and close collaboration with our customers, we deliver products that not only meet but often exceed expectations for quality, safety, and compliance.

Do you provide design and engineering support?

Yes. At Rosti Group, our support goes far beyond plastic injection molding. Our Plastic Contract Manufacturing services provide full design and engineering services, helping customers bring ideas from concept through to production. Our teams collaborate with you at every stage of the product lifecycle — from initial design for manufacture (DFM), prototyping within 72 hours, and material selection, through to tooling, testing, and full-scale production. By combining advanced simulation, rapid prototyping, and in-house engineering expertise, we ensure your products are optimised for performance, cost efficiency, and sustainability. This end-to-end approach not only accelerates time to market but also reduces risks, waste, and costs throughout the supply chain.

Where are your manufacturing facilities located?

Rosti operates 12 state-of-the-art production facilities strategically located across Europe, North America, and Asia. This global footprint allows us to manufacture close to your end markets, helping to reduce lead times, optimise supply chains, and support your sustainability goals. By accessing the full breadth of our plastic injection molding capabilities at any of our sites, you benefit from consistent quality, efficiency, and innovation worldwide. The advantages of this approach include reduced time to market, the ability to navigate economic headwinds with greater flexibility, and opportunities to lower costs through optimised production and logistics – helping you stay competitive in a fast-changing marketplace.

How do you support sustainability goals?

From an early stage in our contract manufacturing process, sustainability is a core element of conversations with our design and innovation teams to ensure that we are able identify opportunities to help you reduce your impact on the environment. We are continuously investing to ensure all aspect of our business operations are reducing Rosti’s impact on the environment and this can be seen throughout all aspects of our contract manufacturing services. From providing options to manufacture in sustainable and recyclable materials during the design phase through to energy-efficient machines. Adopting automated and lights-out production enables us to move away from traditional manufacturing methods, helping to drive efficiencies when it comes to material utilisation and reducing waste. When planning the logistics and delivery of a finished product, packaging is an integral part to to transporting high-quality products. Our Contract Manufacturing team support customer to select light-weight returnable or recyclable packaging to reduce waste and emissions whilst maintain quality standards.

What is Contract Manufacturing

Contract manufacturing happens when one company partners with a specialized manufacturer to produce specific components or products for a set period of time. Think of it as outsourcing production to experts who can deliver exactly what you need, when you need it. In a typical arrangement, a contract manufacturer produces parts, components, or even complete products according to the client’s specifications. These items are then used by the client in their own manufacturing process or incorporated into their final products. Many contract manufacturers operate as third-party specialists, either focusing solely on subcontracting or supplying products to multiple companies. Learn more about <a href="https://www.rosti.com/en-us/resources/blogs/contract-manufacturing/">contract manufacturing</a>.

Rosti

Design Support

Product Design for High Performance Plastic Solutions

Rosti provides comprehensive design support that accelerates product development, reduces risk and ensures every component is optimised for performance, manufacturability and sustainability.

Working as an extension of our customers’ teams, we combine engineering expertise, material knowledge and advanced digital tools to transform early concepts into robust, production‑ready designs. From feasibility studies and design for manufacture to prototyping and functional testing, we help customers streamline development, reduce costs and bring better products to market faster.

Scott Dickson
R&D Technical Manager

Rely on Rosti’s expertise and analytics

We have a skilled and highly competent team of product designers and engineers, who are capable of both developing innovative ideas and optimising your product design.

Supported by customised software solutions that bring your ideas to life.

Rosti Expert Analytical Systems is a suite of tools for component design and tool optimisation. A customised version of Autodesk Mouldflow Insight and Moludex to simulate production and troubleshoot problems before manufacturing kicks off. The goals of this approach are to streamline project management, reduce costs and avoid the risks you might otherwise encounter when working with new materials, tools and processes.

The value of prototyping

As total solution providers we understand the value of quick, accurate prototyping, so we have two different approaches that we apply according to the demands of your project.

We often work with a select group of specialised suppliers to provide a quick and cost-effective service in prototyping. We have also developed our own direct digital manufacturing (DDM) procedures, that allows us to create prototypes using 3D printing, removing the need for investment in traditional tooling. We work with different prototype materials and methods to provide you with prototyping tools that are appropriate to your project’s needs.

FAQ

What is OEM vs Contract Manufacturing?

OEMs and contract manufacturers differ primarily in terms of control, intellectual property ownership, and design responsibility. An Original Equipment Manufacturer (OEM) produces products according to a client’s precise design, with the client retaining ownership of the brand and intellectual property. In contrast, a Contract Manufacturer (CM) typically manufactures parts or complete products based on the client’s specifications, while the client maintains control over the design and production requirements. In many cases, contract manufacturing forms part of an OEM relationship, where the CM serves as the production partner or factory, and the client acts as the OEM.
How do you ensure quality and compliance?

Quality and compliance are central to everything we do at Rosti Group. All of our 12 manufacturing facilities operate under internationally recognised certifications, including ISO 9001, ISO 13485 (medical), ISO 14001, and ISO 50001, ensuring rigorous standards for quality, sustainability, and energy management.

Our teams follow robust quality assurance processes, including advanced product validation, in-line inspections, and traceability systems to guarantee consistency and reliability across every production run. For highly regulated sectors such as medical devices, automotive, and consumer goods, we ensure strict adherence to industry-specific standards and regulatory requirements.

Through continuous improvement programmes, data-driven monitoring, and close collaboration with our customers, we deliver products that not only meet but often exceed expectations for quality, safety, and compliance.
Do you provide design and engineering support?

Yes. At Rosti Group, our support goes far beyond plastic injection molding. Our Plastic Contract Manufacturing services provide full design and engineering services, helping customers bring ideas from concept through to production.

Our teams collaborate with you at every stage of the product lifecycle — from initial design for manufacture (DFM), prototyping within 72 hours, and material selection, through to tooling, testing, and full-scale production. By combining advanced simulation, rapid prototyping, and in-house engineering expertise, we ensure your products are optimised for performance, cost efficiency, and sustainability.

This end-to-end approach not only accelerates time to market but also reduces risks, waste, and costs throughout the supply chain.
Where are your manufacturing facilities located?

Rosti operates 12 state-of-the-art production facilities strategically located across Europe, North America, and Asia. This global footprint allows us to manufacture close to your end markets, helping to reduce lead times, optimise supply chains, and support your sustainability goals. By accessing the full breadth of our plastic injection molding capabilities at any of our sites, you benefit from consistent quality, efficiency, and innovation worldwide.

The advantages of this approach include reduced time to market, the ability to navigate economic headwinds with greater flexibility, and opportunities to lower costs through optimised production and logistics – helping you stay competitive in a fast-changing marketplace.
How do you support sustainability goals?

From an early stage in our contract manufacturing process, sustainability is a core element of conversations with our design and innovation teams to ensure that we are able identify opportunities to help you reduce your impact on the environment.

We are continuously investing to ensure all aspect of our business operations are reducing Rosti’s impact on the environment and this can be seen throughout all aspects of our contract manufacturing services.

From providing options to manufacture in sustainable and recyclable materials during the design phase through to energy-efficient machines. Adopting automated and lights-out production enables us to move away from traditional manufacturing methods, helping to drive efficiencies when it comes to material utilisation and reducing waste.

When planning the logistics and delivery of a finished product, packaging is an integral part to to transporting high-quality products. Our Contract Manufacturing team support customer to select light-weight returnable or recyclable packaging to reduce waste and emissions whilst maintain quality standards.
What is Contract Manufacturing

Contract manufacturing happens when one company partners with a specialized manufacturer to produce specific components or products for a set period of time. Think of it as outsourcing production to experts who can deliver exactly what you need, when you need it.

In a typical arrangement, a contract manufacturer produces parts, components, or even complete products according to the client’s specifications. These items are then used by the client in their own manufacturing process or incorporated into their final products. Many contract manufacturers operate as third-party specialists, either focusing solely on subcontracting or supplying products to multiple companies.

Learn more about contract manufacturing.

What is OEM vs Contract Manufacturing?

OEMs and contract manufacturers differ primarily in terms of control, intellectual property ownership, and design responsibility. An Original Equipment Manufacturer (OEM) produces products according to a client’s precise design, with the client retaining ownership of the brand and intellectual property. In contrast, a Contract Manufacturer (CM) typically manufactures parts or complete products based on the client’s specifications, while the client maintains control over the design and production requirements. In many cases, contract manufacturing forms part of an OEM relationship, where the CM serves as the production partner or factory, and the client acts as the OEM.

The guidance we provide during the design process emphasises innovation, performance and sustainability. We always try to find ways to embed these values in the entire project. The result is a product design that is perfectly aligned with the production process, for streamlined manufacturing and less waste.

At Rosti, product design is one of our specialities. From product conception to prototyping and manufacturing product design, we have the experience and capabilities to help you bring your product vision to life. Our expert product designers and engineers can work closely with you throughout each step in the product design process to ensure that everything exceeds expectations. We understand that product design can be difficult and confusing, so we make sure to guide you every step of the way. That’s why product design with Rosti is so successful – our experience and expertise means product designs become a reality with minimal stress.

Product Design & Development

We guide products from idea to launch through a structured design and development process. Combining analytical screening, prototyping, and forward-thinking design, we ensure every solution is viable, manufacturable, functional, and commercially successful.

two Rosti staff in front of computor and simulation

Concept Evaluation & Feasibility

All ideas undergo internal screening and analytical review. We assess cost, revenue potential, competition, longevity, and technical feasibility to ensure only strong, viable concepts move forward.

Prototyping & Product Development

We develop and test prototypes to validate performance, quality, and manufacturability. Successful designs progress through controlled development stages toward full-scale production.

Functional & Aesthetic Integration

Our forward design approach unites technology, materials, mechanics, and user experience into one cohesive product. We balance functionality and visual appeal to deliver solutions that perform exceptionally while maintaining strong design integrity.

Saving you money, materials and time

With decades of experience in injection moulding, we can see the opportunities and risks in every project from a very early stage. By partnering with Rosti at the beginning of your project, you not only get product design support from skilled engineers and product designers, but you also get insight from a supply and manufacturing perspective. Working with Rosti on your product design helps to streamline production, reduce waste, and ultimately save time and money.

With our product designers’ scope of expertise, we can deliver total solutions – from concept to reality – while letting you decide how much day-to-day involvement you want to have. You can even consult us after the design phase has begun. We are happy to meet with you and your product designer to discuss the feasibility of your project, and identify the performance and sustainability issues that are likely to affect it. Together we will design solutions that work to create a final product everyone is happy with.

The importance of user testing during the product development process

User testing plays a critical role in product design. By integrating user research into the product development process, product teams are able to gain insights about how an end product can best meet users’ needs. User feedback helps product teams identify potential flaws that can be addressed early on in the process, and it also allows product teams to receive feedback from a diverse user group who might be experiencing the product in different contexts and therefore have a different user experience. Furthermore, user testing allows product teams to understand usability issues and prioritize which features should be added or removed in order to make the product better. Ultimately, user testing is an essential tool for helping product teams create products that are designed with their intended end user in mind.

How to take into account the manufacturability of a product when designing it

When product design is being considered, it is important to keep manufacturability in mind. A product must be designed with its eventual production process in the forefront. Part of a product designer’s role is to anticipate production complexities and consider cost-effective solutions. Ensuring that design decisions take into account limitations of the final product’s budget and what resources are available as part of the manufacturing plan, as well as how these limitations and resources can be leveraged to produce an optimally manufacturable product, can help prevent delays and expenses further down the line. Therefore, product designers should consider the obstacles their product will face prior to fabrication in order to make sure the product can be manufactured without problems.

With years of experience in engineering and manufacturing product design, we’ll work with you every step of the way to create a product that meets your needs and exceeds expectations. We understand how crucial it is for products to be designed quickly yet efficiently, and our team will ensure that everything meets your requirements while still maintaining quality control standards.

If you need help with any aspect of the product development process, reach out to Rosti. We specialize in taking products from concept to reality and our team would be happy to assist you.