Capability · Machining & cutting
CNC machining & cutting
Precision plastic cutting to size and CNC machining – for single parts, small batches and standard formats. Semadeni machines acrylic, PP, PE, PVC, PC and all common thermoplastics from batch size one.
What does Semadeni offer in CNC machining and cutting of plastics?
CNC machining and cutting cover the chip-removing separation and shaping of plastic sheets and semi-finished products: sawing, milling and drilling to size. Semadeni cuts and machines all common thermoplastics – acrylic (PMMA), PP, PE, PVC, PC and more – from a straight cut to a complex milled part from CAD data. The technology centre in Ostermundigen has a vertical panel saw and a 4-axis CNC centre, so contour, tolerance and edge quality can be matched to the workpiece. Because no mould or injection tool is needed, machining is worthwhile from batch size one and for high-variant orders. Which machine, tolerance and tool path lead to the result is defined per project based on material, sheet thickness and required accuracy.
Process
Benefits of CNC machining & cutting
Economical from a single part
Without a mould or injection tool we already make single parts, samples and small batches – flexible even with frequent changes.
Precise from CAD
Contours, pockets, holes and slots are created directly from your DXF, DWG or STEP data, standard tolerance ± 0.2 mm.
Large-format cutting
Sheet formats up to 3050 × 2050 mm also cover large-area cuts and cladding.
Sawing and milling combined
Cutting to size and CNC milling are available in combination at the same site – matched to edge and geometry.
Burr-free cuts and edge finish
The vertical panel saw delivers straight, burr-free cuts; on request we deburr and finish the edges afterwards.
Broad material spectrum
From PMMA through PP, PE and PVC to PVDF, we machine the common technical thermoplastics.
Technical possibilities
A framework for pre-clarification. We match machine, tolerance and edge quality to material, sheet thickness and accuracy.
From file to part
Data check
We check your CAD data or sketch for feasibility and tolerance.
Material & process
Define material, sheet thickness and the suitable cutting process.
Cutting & milling
Saw and mill to contour, with holes and cut-outs.
Inspection & finish
Dimensional check, deburring and, on request, edges, bonding or assembly.
What are CNC & cutting suited for?
- Machine parts, templates and technical milled parts from CAD
- Display, advertising and presentation parts from acrylic (PMMA)
- Standard formats and special cuts from sheet material
- Covers, partitions and protective screens in small series
Which cutting process?
In detail
Chip-removing machining to size
In cutting and CNC machining, plastic is separated and shaped by chip removal – sawn, milled and drilled. The technology centre in Ostermundigen has a vertical panel saw and a 4-axis CNC centre for this. Because no mould or injection tool is needed, machining suits a single part and high-variant orders – from a straight sheet cut to a complex milled part from CAD.
Two processes combined
Cutting
The vertical panel saw delivers straight, burr-free cuts up to large format – from standard formats to bespoke cuts from the full sheet.
CNC milling
The 4-axis centre mills contours, pockets, cut-outs and slots directly from CAD data – with a standard tolerance of ± 0.2 mm and tighter on request. Machine parts, templates and technical milled parts are thus made reproducibly.
Matching material and tolerance
Not every plastic machines the same way: PMMA tends to chip with the wrong tool path, soft PE grades demand sharp cutting edges, PVDF poses its own requirements. Which machine, tolerance and edge quality lead to the goal is matched before production to material, sheet thickness and required accuracy, with sampling if needed.
Frequently asked questions about CNC machining & cutting
Which plastics can Semadeni cut?
All common thermoplastics: PMMA (acrylic/plexiglas), PP, PE, PVC-U, PVC foam, PC, PET-G, PS, PVDF and PA. Composite sheets and coated materials can also be machined on request. Which machine and tool path fit depends on the material and sheet thickness.
How accurate is CNC machining?
The standard tolerance is ± 0.2 mm. For precision parts with tighter tolerances we adjust the machining individually and check feasibility from your CAD data. The achievable accuracy also depends on material, thickness and geometry.
What is the minimum order for cutting to size?
Batch size starts at one piece. Some standard formats are available from stock, special formats are made after order receipt. An expedited delivery is also possible on request.
Can Semadeni produce from my own CAD data?
Yes. Send your DXF, DWG or STEP file. We check feasibility and tolerances before preparing a quote and get back to you with any questions about geometry or material.
When sawing, when milling?
The vertical panel saw is the fast route to straight cuts up to large format. CNC milling comes in wherever a contour, pocket, slot or internal cut-out is required – from CAD data and with a standard tolerance of ± 0.2 mm. Which route fits the part is clarified by product and material.
References
CNC machining & cutting in practice
Plastic Sneeze Guards for Nail Salons
Over 60 individually cut sneeze guard panels for the nail tables at NAIL & BEAUTY OASE in Emmenbrücke.
Flexible Cutting Service for Plastic Sheets
Cut-to-size plastic sheets for M. Bucher AG for over ten years – plastic as the dimensionally stable back panel of drying cabinets.
Info Stands for Motorcycle Showrooms
Robust information stands and leaflet holders in the motorcycle showroom of Hess Motorrad in Ostermundigen.
Modular Displays from Semadeni at the Milan Fashion Fair
An illuminated, modular display for De Marquet's bags at Milano Fashion Week and in the Berne store.
Custom Plastic Sink Units for School Buildings
Almost 50 recessed washbasin units in plastic, made to precise measure for the cantonal school in Menzingen.
Displaying Sensitive Objects at Trade Fairs
An airtight cover with laser marking that protects Comet AG's copper spiral electrodes at trade fairs while showing them off.
Your project?
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- CapabilityView
Laser engraving & laser cutting
Laser engraving and laser cutting of plastics – for markings, signs, logos and fine contours. Semadeni runs CO₂ laser technology mainly for acrylic glass (PMMA), from a single part and from your vector file.
- SolutionView
Industry & manufacturing
Plastic solutions for industry, mechanical engineering and trade: spill pallets, containers, cut-to-size semi-finished products and special constructions in PP, PE, PVC-U and other technical thermoplastics – custom manufacturing to drawing from batch size one, from Swiss production in Ostermundigen.
- ShopView
Standard products in the shop
Send your CAD file – we make your cut part
Send us your DXF, DWG or STEP file with material and quantity. We check feasibility and tolerances, sample if needed and prepare a quote – personally from Switzerland.
