Rosler UK Ltd
Leading Partner for Subcontract Services

We process a wide range of materials.
This material diversity allows manufacturers to streamline supplier relationships, ensuring consistent finishing quality across mixed production portfolios. We process:

• Metals such as stainless steel, aluminium, brass, titanium, and other alloys
• Plastics—including those for high-quality optical applications
• Ceramics
• 3D-printed parts, especially those with complex geometries and high surface demands

Typical applications include:
Precision mechanical components, medical parts, aerospace components, tools, gears, mould inserts, decorative parts, and 3D-printed products where a smooth, uniform, or glossy surface is required.

Our smoothing and polishing processes:

• Mass finishing (tumbling): Using specially selected grinding and polishing media and compounds, we achieve a stepwise reduction of surface roughness—up to a high-gloss finish.
• Drag finishing: Ideal for delicate parts or complex geometries—workpieces are clamped individually and precisely guided through the media.
• Centrifugal and vibratory finishing: For efficient batch processing with consistent quality.

Advantages for our customers.
In addition to technical precision, clients benefit from scalable capacity, predictable cost structures, and reduced lead times that strengthen overall operational efficiency.

• Significant reduction of surface roughness (e.g., from Ra 2.0 µm to Ra 0.03 µm)
• Visually high-quality and functional final surfaces
• Suitable for single parts, small batch series, and large volumes
• No investment in machinery or know-how required
• Reproducible quality—even at high quantities
• Optional subsequent cleaning included

Our customers come from medical technology, aerospace, automotive, toolmaking, 3D printing, jewellery and watchmaking industries, as well as mechanical engineering. Injection moulding companies, precision mechanics, stamping shops, and manufacturers of high-quality visible parts particularly benefit from our expertise.

Our processing methods enable gentle cleaning and optimization of a wide variety of surfaces. The goal is to deliver components free of residues with uniformly clean surfaces—whether as pretreatment for subsequent processes or as a final finishing. Each method is designed not only for quality but also for consistency across volumes, supporting just-in-time production environments and helping manufacturers meet strict delivery targets without compromise.

We process workpieces made of:

• Metals such as steel, stainless steel, cast iron, aluminium, or non-ferrous metals
• Ceramic materials
• 3D-printed parts, especially from metal powders where sinter residues or support structures need to be removed

Typical applications include:

• Forged parts
• Castings (sand casting, chill casting, die casting)
• Welded constructions
• Heat-treated components
• 3D-printed metal components

Our methods for descaling and sand removal:

• Shot blasting technology: The use of suitable blasting media (e.g., steel grit, stainless steel balls, corundum) allows fast and uniform removal of scale or sand residues—both on coarse and delicate workpieces.
• Mass finishing (tumbling): Especially for smaller or geometrically complex parts, mass finishing processes are used to selectively loosen thermal residues while simultaneously smoothing the surface.

Your benefits at a glance
In addition to technical precision, clients benefit from predictable costs, reliable turnaround times, and the assurance of a scalable process that grows with production demand.

• Residue-free, clean, and adhesive surfaces
• Efficient pretreatment for coating, painting, or assembly
• Processing of single parts, small and large series
• Gentle methods—even for sensitive components
• Short throughput times and consistently high quality
• No investments required—you pay only for the processing

Our services target numerous industries including automotive and supplier industry, mechanical engineering, aerospace, energy, foundry technology, and increasingly 3D printing providers and additive manufacturers. As your partner for professional subcontract manufacturing, we support you specifically—from individual solutions to series production.

Typical objectives of matting and texturing
Increasingly, surface finish defines perceived value. Well-controlled textures not only enhance usability but also elevate brand perception, making design intent visible to the customer. We offer:

• Uniform, low-reflection surfaces for visible parts
• Enhanced grip or defined tactile properties on functional surfaces
• Pretreatment to improve adhesion of paint, adhesives, or coatings
• Removal of glossy spots, smoothing, or texture equalization
• Functional texturing, e.g., for friction optimization

Processable materials:

• Metals (e.g., stainless steel, aluminium, brass, titanium)
• Plastics (e.g., PA, ABS, PEEK)
• Ceramic materials
• 3D-printed parts from all common processes

Our matting and texturing processes:

• Blasting processes (pressure and injector blasting): For targeted matting or defined roughness profiles, ideal for visible or coating-relevant parts.
• Mass finishing with special media: Produces uniform, matte surfaces with high process reliability, even for complex geometries or as a combination process (e.g., with smoothing or deburring).
• Drag finishing: For controlled surface modification of high-quality or delicate parts.

Your benefits with Rösler
Our customers don’t just achieve technical outcomes, they gain market-ready finishes that add measurable commercial and aesthetic value to their products.)

• Process-secure matting and texturing – regardless of batch size or geometry
• Can be combined with other processing steps such as deburring, cleaning, or polishing
• Use of the latest technology from Rösler’s machine portfolio
• Reproducible results for series or single parts
• No investment necessary – finished components from experts

Our certified Rosler UK Ltd Customer Experience Centre serves customers from diverse industries: from automotive through medical technology and aerospace to consumer goods and design industries. The facility empowers manufacturers and designers alike to explore surface aesthetics as a competitive differentiator, transforming functional requirements into tangible expressions of quality and brand identity.

We process parts made of:

• Metals such as stainless steel, aluminium, titanium, or Inconel
• Plastics such as PA, ABS, PEEK, or photopolymer resins
• Technical ceramics

Typical applications include:

• Functional parts with defined surface requirements
• Visible parts with high optical quality
• Components from medical technology, aerospace, automotive, electronics, or mechanical engineering
• Structured lightweight parts or tooling inserts

Our post-processing methods for 3D-printed parts:

• Efficient removal of powder residues, layer lines, and support structures. Ideal for smoothing complex geometries, including delicate structures.
• Gentle and targeted treatment of high-quality or sensitive AM components. Perfect for reproducible results with tight tolerances.
• Depending on the application, we achieve matte, satin, or high-gloss surfaces – functional, decorative, or hygienic.

Your benefits with Rösler:

• Perfect surface quality for your additively manufactured parts
• Proven processes based on Rösler and AM Solutions technology
• Reproducible results – from the first to the millionth part
• No investment risk – we handle the entire post-processing
• Short throughput times thanks to efficient workflows and a broad machine park

Our offer is aimed at companies in additive manufacturing, medical technology, automotive, aerospace, tooling and mould making, electronics, as well as startups committed to the highest component quality from the start.

Functionality and Technical Advantages of Wet Blasting

This process is increasingly recognised not just for its technical precision but for its ability to deliver commercial value, enhancing part quality, reducing post-processing effort, and ensuring consistent results across varying production runs.

In wet blasting, abrasive media and water are mixed into a fine suspension and sprayed evenly onto the component surface at high pressure. The water content dramatically reduces friction heat and dust emissions – allowing delicate materials such as aluminium, stainless steel, titanium, plastics, or rubber to be processed without damage. Even extremely thin-walled or detailed parts are highly suitable.

By adjusting media size, blast pressure, and processing duration, the achieved surface finish can be tailored exactly to your technical requirements. This includes a spectrum of finishes – from a cleansing, finely textured surface to specifically functional roughness for later coating or bonding.

The result: A particularly homogeneous, high-quality and tactile surface, reliably residue-free and ideally prepared for follow-up processes such as coating, painting, bonding, or polishing.

Our Wet Blasting Service – Your Advantages at a Glance:

• Uniform, fine surfaces for demanding technical and visual applications
• Minimal material removal – perfectly suited for sensitive or complex components
• Surface roughness individually adjustable: Depending on process parameters, we achieve Ra values from 0.3 µm up to 2.5 µm. The desired finish – from matte to satin – can thus be precisely realized.
• Tight dimensional tolerances: Material removal is typically limited to just a few micrometres. This preserves critical fits, edges, and dimensions – ideal for precision components.
• No thermal or mechanical stress on your part
• Reproducible quality – from the first piece to the last
• Wide range of component sizes – from delicate precision parts to larger assemblies

In addition to these technical benefits, wet blasting as a subcontracted service provides measurable business outcomes—reduced investment risk, faster turnaround, and greater supply chain flexibility.

Wide-Ranging Application Possibilities in Subcontracted Processing

Our clients use wet blasting strategically, whether to perfect prototypes, standardise production surfaces, or eliminate variability in critical applications, turning finishing into a competitive differentiator rather than an afterthought.

We process, among others:

• Metallic materials: Aluminium, stainless steel, brass, titanium, copper alloys, zinc die-castings
• Plastics and composites
• Ceramic and glass
• Rubber and elastomer parts

Typical components include:

• Precision parts for medical, aerospace, or electronics applications
• Housings, covers, casings, and fine stamped, turned, or milled components
• 3D-printed parts with support structures or post-processing requirements
• Components requiring optically superior or specifically defined surface structure

Processing is flexible – as single pieces or bulk goods – and can be easily scaled from small batches up to mass production. Typical part sizes range from a few millimetres up to components measuring about 1,500 mm.

Our Subcontracted Finishing Service for Your Project

Partnering with Rösler means gaining more than a service, it’s access to process expertise, scalable capacity, and repeatable quality that deliver real-world value where precision and presentation intersect.

With our wet blasting system, your components achieve precisely the surface properties you need – quickly, efficiently and with consistently high quality. Subsequent cleaning and drying are naturally included in the process. You only pay for the service – no investment in equipment, personnel or consumables required.

As an experienced service provider, we support customers from the automotive, medical, engineering, aerospace, electronics, precision engineering and consumer goods industries.