Integrate more.
Build less.
The lamination stack — the magnetic core of your motor — engineered to do more.
Most drives 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
What if the lamination stack did more than its job?
In most drives it’s a generic core, stamped to a drawing — with the housing, brackets and assembly features added later, in separate steps, 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.
Same motor brief.
A fundamentally simpler part.
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.
Conventional stack
Stamped to a drawing
- Generic full-circle stamping
- Up to ~50% material wasted
- Housing & features added separately
- Many process steps across suppliers
- Standard motor performance
SWD integrated stack
Engineered as a system
- Segmented & function-integrated
- ~50% / near-half material
- Assembly features built into the part
- The stack IS the housing (where it fits)
- Motors with unique characteristics
Design freedom, engineered into the part.
What we deliver for makers of industrial automation motors, special pumps, machine-tool motors and custom drive solutions.
Challenge usStators with integrated assembly features
Alignment, mounting and interlock geometry stamped in — not bolted on later.
Lamination stacks that double as the housing
Where geometry allows, the stack becomes the structural shell — parts and process steps disappear.
Fewer process steps through better steel packages
Cleaner, tighter packages that don't need re-machining to hit tolerance.
Machined & high-precision stators and rotors
Mechanical finishing under one roof for concentricity that assembly can rely on.
Micromotors, microsegments & laminar specials
Down to the high-slot-count, small-diameter geometries most stampers won't quote.
Motors with unique characteristics
Torque, thermal and acoustic behaviour tuned at the lamination level, not at the drive.
Better engineering that also costs less to build.
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 packages 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.
Not a stamping shop.
A co-engineering partner.
Classic stampers build 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 build at scale. Decades of Swiss expertise in material, tooling, process, machines and production data, all sitting under one roof.
- Heritage
- Swiss precision
- Model
- Co-engineering
- Focus
- Stator & rotor
“Bring us the motor you can’t buy off the shelf. We’ll help you build the part that makes it possible — and the process that makes it profitable.”
From concept to running series.
One team, four milestones. No handoffs between engineering and industrialization.
- STEP 0101/04
Co-engineering talk
Bring the motor brief or the stack you already build. We map what's worth changing.
- STEP 0202/04
Concept & feasibility
Design proposals with material, tolerance and process implications quantified.
- STEP 0303/04
Prototype & validation
First articles, measured against your acceptance criteria — not ours.
- STEP 0404/04
Industrialization
Series production at SWD, or transferred to your own site with our tooling and data.
Challenge our engineers.
Bring us your drive concept — or the stack you build today. We’ll show you what’s possible, and what it saves.
- Response from a real engineer, not a rep
- NDA-friendly — send us as much or as little as you want
- Feasibility feedback within one working week