For motor · automation · drive system manufacturers
The lamination stack — a magnetic and electric core of your motors — engineered to do more. Most manufacturers treat the lamination stack as a passive core stamped to a drawing. We turn it into a design surface — with assembly features engineered in, and, when it makes sense, the stack itself becoming the housing. Motors with unique characteristics, fewer parts, fewer process steps.
A different starting question
In most drives it’s a generic core, stamped to a drawing — with the housing, brackets and assembly features added later, in separate steps, eventually by other suppliers. At SWD we start upstream of the drawing. We engineer functions into the part itself, so the motor gains characteristics you couldn’t get otherwise, and everything downstream — machining, assembly, logistics — gets simpler and cheaper.
Two ways to answer the same specification. One assumes the part is fixed and the rest of the motor works around it. The other lets the part do more, so the rest of the motor can do less.
Stamped to a drawing
Engineered as a system
A production system co-developed over ten years with high value partners. Segmented laminations, bonded to a full stack — the process that lets us cut ~50% material, hold tolerances of a few 1/100 mm, and run series with up to 95% OEE.
Talk to our engineersWhat we deliver for manufacturers of industrial automation motors, special pumps, machine-tool motors and custom drive solutions.
Challenge usAlignment, mounting and many other geometries stamped in — not bolted on later.
Where geometry allows, the stack becomes the structural shell — parts and process steps disappear.
Cleaner, tighter stacks that don't need re-machining to hit tolerance.
Mechanical finishing under one roof for concentricity that assembly can rely on.
Down to the high-slot-count, small-diameter geometries most stampers won't succeed with — many offer them, few can deliver.
Higher torque, higher efficiency, better thermal and acoustic behaviour at the stack level, not at the drive — including the new materials we provide.
Design decisions engineers care about. Numbers procurement can defend.
Integrated features remove downstream operations — lower assembly cost.
Segmented layouts cut electrical-steel waste — lower part cost and CO₂.
Cleaner stacks assemble faster with fewer rejects and rework loops.
Tool life up to 50 M strokes and up to 95% OEE — series you can plan around.
A customer had a stator-generator drive with punch-stacked lamination stacks — but performance, vibration and noise weren’t right. SWD switched to bonded segments and rotors and delivered within 12 weeks. Today it runs in series production on the BPS® system.
Classic stampers manufacture to the drawing you hand them. We start earlier — engineering the part and the process together, so the motor comes out more capable and cheaper to manufacture at scale. More than three decades of Swiss expertise in material, tooling, process, machines and production data, all under one roof.
“Bring us your current motor or your ideas for the next generation. We’ll help you build the part that makes it possible — and the process that makes it profitable.
One team, four milestones. No handoffs between engineering and industrialization.
Bring the motor brief or the stack you already build. Together we map what's worth changing.
Design proposals with material, tolerance and process implications quantified.
First articles, measured against your acceptance criteria — not ours.
Series production at SWD, or transferred to your own site with our technology and concept.
Bring us your drive concept — or the stack you build today. We’ll show you what’s possible, and what it saves.
