Factory-direct automation designed to optimize copper fill factor, eliminate coil-head scuffing, and maintain tight air-gap tolerances. Explore our verified equipment line running in precision facilities worldwide.
In high-performance electric machinery, winding the copper is only half the battle. Stator coil shaping defines the electrical clearance, thermal dissipation profile, and mechanical reliability of the end winding basket.
In electric motor manufacturing—ranging from heavy duty submersible pumps to high-speed automotive and cleanroom HVAC compressors—the stator end-turn basket represents the most physically vulnerable zone of the electromagnetic assembly. During insertion, whether via manual guide blades or high-speed servo pushers, copper conductors experience mechanical flare. If left unformed, end turns violate the mechanical clearance envelope of the motor end-bell housing, impede phase separation, and create unequal electromagnetic balance.
Proper coil shaping is executed in two critical phases: Intermediate Forming (expands the coil basket diameter outward, clears the central bore path, and forms neat radial pockets for phase insulation lacing) and Final Forming (executes hydraulic or servo-mechanical axial compression to set final overhang height, end-turn diameter, and slot wedge retention). Without precise geometric forming, scrap rates spike during rotor insertion, driven by wire scuffing, nicked varnish, and grounded phase coils.
When selecting or specifying tooling for our HONGFANG and Zunqi shaping series, our engineering department calculates stress points according to five fundamental parameters:
| Kinematic Stage | Tooling Mechanism | Standard Tolerance | Failure Avoided |
|---|---|---|---|
| 1. Internal Core Expansion | Segmented multi-petal expanding mandrel driven by central tapered wedge | ±0.05 mm on inner coil boundary | Eliminates stator bore ingress, preventing rotor-to-coil rubbing |
| 2. External Radial Forming | Segmented external concentric shaping blocks with hardened alloy guides | ±0.10 mm external envelope | Prevents end-turn interference with motor housing end-shields |
| 3. Axial End-Face Pressing | Precision hydraulic or servo-driven contour cups matched to winding radius | ±0.12 mm stack overhang height | Controls overall motor length and ensures equal thermal distribution |
| 4. Wedge Setting & Retention | Integrated slot wedge retention fingers and corner boundary locators | Zero wedge displacement | Prevents slot cell creep and dielectric breakdown against lamination iron |
Our coil shaping machines utilize modular tooling steel (Cr12MoV vacuum-quenched to HRC 58-62) to resist abrasive wear from harsh insulation papers like Nomex®, DMD, and polyimide films. By implementing dual-stage controlled hydraulic pressure or digital servo motion curves, wire varnish stress is preserved below 2.8% elongation, maintaining dielectric insulation integrity up to 4,500V surge testing thresholds.
From Ringaskiddy's global biopharmaceutical hubs to Little Island's food manufacturing and Cork Harbour's offshore maritime engineering, local industrial operations demand high-uptime electric motor assembly and rewinding lines.
Cork houses one of the largest concentrations of biopharma plants in Europe. Motor manufacturers supplying this corridor in Little Island and Ringaskiddy build specialized, hermetically sealed, stainless-clad stator assemblies. Our forming equipment guarantees tight, compact end windings, allowing motors to sit in compact, washdown-rated IP69K casings with minimal internal air voids.
Around Cork Harbour and Cobh, electric drives operate under violent maritime vibration and salt-mist exposure. Stators manufactured for thrusters, winches, and brine pumps demand immaculate end-turn stability. Controlled forming paired with our servo double-side lacing machinery locks copper conductors solidly against vibrational displacement, eliminating phase-to-phase abrasion.
County Cork's robust agricultural and dairy processing sector depends on continuous-duty submersible pumps, centrifuges, and refrigeration compressors. Stators for these units require maximum copper fill factors. Our intermediate expanding formers open slot channels efficiently to maximize cross-sectional wire packing without risking slot cell fracture.
Analyzing technical shifts in energy efficiency directives, onshore engineering self-reliance, and the decarbonization of Ireland's southwestern industrial corridor.
With Ireland's aggressive energy-efficiency mandates, motor OEMs serving Munster plants are transitioning rapidly to IE4 and ultra-efficient IE5 synchronous reluctance designs. These motors feature extreme slot fill percentages that cannot be shaped or inserted manually. Automated, multi-stage servo coil forming has become an essential plant upgrade to prevent insulation tearing on ultra-dense winding stacks.
Supply chain disruptions have driven engineering maintenance providers in Cork, Shannon, and Waterford to establish internal stator rewinding and remanufacturing cells. Rather than waiting months for overseas replacement drives, local workshops utilize flexible, adjustable coil forming and winding machinery capable of tooling turnaround across diverse frame sizes (IEC 71 to 200).
Emerging R&D across Irish technical institutes and marine-tech enterprises in Cork is accelerating the adoption of specialized stator profiles, including segmented tooth cores and concentrated winding formats. Modern production requires adaptable shaping tools that swap form blocks via quick-release fixtures, minimizing line downtime to under 30 minutes.
Headquartered in Dongguan's premier manufacturing corridor with 17+ years of international export pedigree, Zunqi Intelligent Equipment delivers matched, turnkey motor automation engineered to your exact stator drawings.
Every coil shaping mandrel, inserter blade group, and winding former is tailor-machined to your stator ID, OD, slot pitch, and stack height. We don't ship generic fixtures; we manufacture precision tooling verified against your physical stator cores.
Never take delivery on faith. Buyers in Ireland send physical stator cores to our test facility. We execute complete winding, inserting, shaping, and lacing cycles on camera, measuring finished clearances before crating.
To ensure effortless integration with existing European electrical standards, our automation integrates your specified component standard: Siemens, Mitsubishi, Schneider, Delta, Panasonic, or Omron PLCs paired with Airtac or SMC pneumatics.
We supply matched equipment across all eight critical stages: slot cell insulation, precision coil winding, single-stroke wedge inserting, intermediate forming, CNC lacing, final forming, rotor OD turning, and shaft hydraulic press fitting.
Addressing import logistics, CE compliance, electrical grid parameters, and tooling changeover for plants operating across Cork, Dublin, and broader Munster.
Our export machines destined for Ireland and the broader EU are built specifically for 230V single-phase or 400V 3-phase, 50 Hz operation. During technical ordering, your plant electrical standard is established, and all drives, PLC power supplies, transformer steps, and hydraulic motors are configured and labeled to meet Irish installation requirements without requiring external phase convertors.
Yes. The machine chassis features adjustable stack height stops, variable stroke sensors, and universal clamping rings. To switch between different stator core IDs and slot geometries (e.g., transitioning from an 80-frame to an 112-frame motor), operators replace the central expanding mandrel and external forming shoes. Tooling changeovers take approximately 20 to 35 minutes using standard hex keys.
We provide full CIF or DDP delivery terms directly into the Port of Cork (Ringaskiddy/Tivoli) or to your factory door. All machines are treated with VCI anti-corrosion barrier wrapping, internal desiccant packs, bolted to heavy-duty base runners, and secured inside fumigation-free, ISPM-15 certified multi-layer plywood crates engineered for long-distance maritime freight.
To fabricate matched forming, winding, or inserting tools, we require: (1) Stator Outer Diameter (OD) and Inner Bore Diameter (ID); (2) Lamination Stack Height range; (3) Number of stator slots and slot opening dimensions; (4) Wire diameter (mm) and number of parallel strands; (5) Desired maximum overhang height of the end-winding basket; and (6) A 2D/3D CAD drawing or one physical lamination sample.
All machines include a comprehensive 1-year mechanical and electrical parts warranty. Equipment ships with fully annotated English operating manuals, pneumatic schematics, and PLC wiring diagrams. For setup and troubleshooting, our Dongguan engineering team provides step-by-step remote video assistance during European operating hours, with an average initial technical response time under 9 hours.
Yes. Inverter-duty motors are prone to partial discharge if magnet wire enamel sustains micro-fissuring during mechanical shaping. Our forming dies feature CNC-radiused mirror-polished alloy contact faces. Rather than delivering a sudden mechanical blow, our hydraulic/servo systems execute progressive expansion with controlled dwell timing, eliminating varnish stress-cracking and passing rigorous surge and hi-pot dielectric inspections.
Consult with our motor automation specialists. Submit your stator core dimensions, slot schematics, or target throughput, and receive a complete machine layout, tooling specification, and quotation within 24 hours.
