Explore our flagship motor automation units deployed in top manufacturing facilities worldwide. Every machine features modular tooling customized strictly to your motor lamination drawings, supporting both copper and aluminum magnet wires.
In modern industrial electric motor manufacturing, the stator coil shaping (forming) process represents the critical boundary between raw electromagnetic winding and reliable mechanical integration. After magnetic copper or aluminum wires are wound and inserted into the stator lamination slots alongside insulating wedges, the coil end-turns (overhangs) remain loose, irregularly flared, and dimensionally chaotic. If left unformed or improperly shaped, the protruding end-windings interfere with the motor frame, damage the rotor upon insertion, abrade phase-to-phase insulation paper, and compromise thermodynamic air circulation.
The engineering objective of intermediate shaping (first forming) and final shaping (second forming)—exemplified by industrial platforms such as the HF-W120H HONGFANG Electric Motor Stator Coil Final Forming Machine—is to compress, calibrate, and lock the spatial geometry of the coil heads within micro-tolerances. This mechanical deformation must be accomplished without inducing microscopic enamel stress fractures, copper work-hardening, or insulation creepage degradation.
Controls axial coil length to ensure that the stator core fits within cast aluminum or iron end-bells without mechanical contact or phase grounding faults under high thermal expansion cycles.
Expands the inner diameter (ID) of the coil overhang radially outward, maintaining an unobstructed passage for rotor shafts and preventing rotor-stator rub during high-RPM dynamic rotation.
Applies controlled, uniform multi-directional pressure via expanding segments to lock inter-phase Nomex/DMD sheets, safeguarding Partial Discharge Inception Voltage (PDIV) ratings.
In classical manual shaping, workshop operators utilized rubber mallets and mechanical clamps. This uncontrolled approach invariably created uneven coil head resistance, pinched wire turns, and caused erratic phase leakage. Modern stator coil shaping machinery eliminates human inconsistency by employing an integrated hydraulic cylinder operating at calibrated pressures between 2.5 and 7.0 MPa. During the cycle, three critical kinematic actions occur simultaneously:
Tetovo, located in the strategically vital Polog Valley of North Macedonia, is experiencing an industrial renaissance. Situated directly along the E-65 and Corridor VIII transport routes, and positioned adjacent to the Technological Industrial Development Zone (TIDZ Tetovo / TIRZ Tetovo), the city has become an attractive nearshoring hub for European automotive tier-suppliers, heating, ventilation, and air conditioning (HVAC) manufacturers, agricultural pumping systems, and electromechanical equipment assemblers serving markets across Germany, Austria, and Italy.
As Western European original equipment manufacturers (OEMs) demand shorter supply lead times and lower carbon footprints, sub-assembly plants in the Tetovo industrial cluster are shifting away from labor-intensive manual motor production toward rigid, automated manufacturing cells. The introduction of Chinese automated stator winding, slot paper inserting, and precision coil forming equipment directly bridges this technological divide.
Tier-2 automotive suppliers based in Tetovo produce auxiliary brushless DC (BLDC) motors, cooling fan drives, and seat actuator drives for European automotive platforms. These stators feature compact stack heights (15mm to 60mm) and high slot-fill ratios exceeding 75%. Our servo-driven coil shaping machines ensure that dense end-windings never exceed strict motor envelope clearances, guaranteeing 100% compliance with ISO/TS automotive tolerances.
Tetovo's robust metalworking and domestic appliance assembly plants manufacture commercial centrifugal blowers, industrial exhaust fans, and residential ventilation units. Utilizing models like the HF-R40-2G Two-Station Ceiling & Ventilation Motor Winding Machine alongside hydraulic coil forming units allows local plants to switch between copper and aluminum magnet wires seamlessly without damaging the insulation coating.
Serving the intensive agricultural basins of North Macedonia and neighboring Balkan export markets, local manufacturers produce multi-stage deep well pumps and irrigation motors. These stators operate in hermetically sealed, oil-filled or water-cooled housings. The coil shaping process must provide absolute uniformity to eliminate hot spots and prevent dielectric breakdown under harsh, fluctuating grid voltages.
Tetovo serves as an engineering repair and refitting crossroad for power plants, mining installations, and textile processing facilities across the Balkan peninsula. Replacing artisanal wooden mallet forming with standardized, universal-jaw stator shaping machinery reduces turnaround times from hours to seconds while restoring refurbished stators to factory IE3 efficiency standards.
To assist manufacturing plant directors and procurement teams in Tetovo in selecting the appropriate forming equipment for specific production cadences, the engineering team at Zunqi has compiled the operational parameters of primary forming architectures:
| Evaluation Parameter | Manual Mallet & Mechanical Clamp | Pneumatic Single-Stage Shaping | Hydraulic Multi-Jaw 2-Stage Shaping (HF-W120H) | Full Servo 3D Multi-Axis Shaping |
|---|---|---|---|---|
| Cycle Time per Stator | 120 – 300 seconds | 20 – 35 seconds | 8 – 14 seconds | 6 – 10 seconds |
| Dimensional Repeatability | ±1.50 mm (Operator Dependent) | ±0.30 mm | ±0.05 mm (High Precision) | ±0.03 mm (Ultra-Precision) |
| Wire Insulation Damage Rate | High (2.5% – 5.0%) | Moderate (0.5% – 1.0%) | Zero-Contact (<0.02%) | Zero-Contact (<0.01%) |
| Applied Forming Pressure | Inconsistent | 0.4 – 0.7 MPa (Compressed Air) | 2.0 – 8.0 MPa (Adjustable Oil Pressure) | Precision Calibrated Closed-Loop |
| Suitable Motor Classes | Low-end repairs only | Fractional HP, Desk Fans | IE2/IE3/IE4 Induction, Pumps, HVAC | Automotive EV Traction, Aerospace |
| Tooling Changeover Time | Not applicable | 35 – 50 minutes | 15 – 25 minutes | 8 – 15 minutes |
| Tetovo ROI Horizon | Low investment / High scrap cost | 10 – 14 months | 4 – 7 months (Optimal Balance) | 14 – 20 months |
The manufacturing sector in Tetovo is inextricably linked to the regulatory frameworks of the European Union. As North Macedonia aligns its national industrial standards with European Ecodesign directives (Regulation EU 2019/1781), motor manufacturers are under legal and economic mandates to transition production lines from obsolete IE1 and IE2 platforms to IE3 (Premium Efficiency) and IE4 (Super Premium Efficiency) specifications.
Achieving IE3 and IE4 efficiency requires packing a substantially higher mass of copper wire into smaller stator slots, raising the slot-fill factor from conventional 60–65% levels up to 78–82%. This high-density winding creates substantial mechanical challenges during manufacturing:
Headquartered in Qishi Town, Dongguan City—China's preeminent electromechanical equipment manufacturing hub—Zunqi Intelligent Equipment Co., Ltd. has spent over 17 years designing, refining, and exporting turnkey stator and rotor production systems to global motor makers. We do not simply supply standard machinery; we build integrated, tailored manufacturing cells that seamlessly translate customer laminations into finished, tested motor assemblies.
We machine all forming jaws, expanding segments, and winder dies directly from your lamination CAD files or physical stator samples, verifying geometry with precision coordinate measuring machines (CMM).
We invite clients to ship physical core samples to our Dongguan factory. We run realistic trial runs, record full HD operation videos, and measure coil resistance and surge ratings before crating the equipment.
Our control architectures utilize globally recognized, easily replaceable components: Siemens, Mitsubishi, or Delta PLCs; Schneider electrics; and SMC or Airtac pneumatics, ensuring straightforward maintenance in Tetovo.
Our technical sales engineering team maintains an average inquiry response window of under 9 hours, providing continuous remote video support, electrical schematics, and rapid spare parts dispatch.
A high-yield motor assembly shop requires synchronized balance across every operational stage. A bottleneck or tooling mismatch at the insulation stage or winding station cascades through the entire plant. Zunqi engineers design every stage to operate with harmonized cycle times:
The Zunqi Harmonized Stator Workflow:
Step 1: Automatic slot paper inserting (1kW, 220V/380V) with zero-crease feed →
Step 2: Multi-station outer/inner stator coil winding (2 to 8 heads) →
Step 3: Simultaneous coil and wedge insertion into stator slots in a single stroke →
Step 4: Intermediate Stator Coil Shaping to open internal bore clearance →
Step 5: Single or double-sided automatic stator coil lacing →
Step 6: HF-W120H Final Stator Coil Shaping for locked end-turn height and OD →
Step 7: Rotor shaft press-fitting and fine surface turning on the HF-C60 lathe.
Clear, direct answers regarding electrical compatibility, shipping routes to the Polog region, customs procedures, and tooling customization.
Yes, absolutely. While domestic Chinese plants commonly operate on 380V 50Hz or 220V 50Hz, we regularly build export-spec electrical systems wired specifically for European three-phase 400V 50Hz grids or single-phase 230V systems. The motors, hydraulic power units, internal transformers, and PLC power supplies are fully configured and factory-tested under your local voltage specifications prior to dispatch.
Industrial machinery destined for Tetovo is typically crated in solid, fumigation-free plywood cases at our Dongguan factory, transported to Shenzhen or Guangzhou Port, and shipped via ocean container freight to the Port of Thessaloniki (Greece) or the Port of Durrës (Albania). From Thessaloniki, cargo moves overland via Corridor X directly into North Macedonia, clearing customs at Skopje or Tetovo within 28 to 35 days total transit. We provide complete commercial invoices, packing lists, CE declarations, and certificates of origin for smooth customs release.
Yes. Our shaping machines (including the HF-W120H) feature modular tooling architecture. The vertical stroke and hydraulic cylinder stop positions are adjustable via digital touch screen or precision mechanical dials to accommodate variable lamination stack heights (e.g., from 10mm up to 150mm). For stators with different internal or external diameters, modular forming dies and center expansion cores can be replaced in approximately 15 to 25 minutes using standard hex tooling.
Our minimum order quantity is exactly 1 set for all winding, inserting, forming, lacing, and rotor finishing machinery. Every piece of equipment includes a comprehensive 1-year warranty covering mechanical gearing, hydraulic pumps, cylinders, and PLC control hardware. We supply an emergency spare parts kit inside the export crate and provide lifelong remote technical support via direct video link with our assembly engineers.
Our engineering validation process is transparent. After receiving your 2D/3D lamination drawings, we generate a formal tooling design for your review. We strongly encourage customers to courier 5 to 10 un-wound stator packs and raw copper/aluminum wire to our Dongguan facility. We wind, insert, shape, and lace your actual parts on the assembly line, providing complete dimensional inspection reports and high-resolution video proof of performance prior to final payment balance and shipment.
We supply both individual standalone machines to upgrade specific bottleneck stations and complete, integrated semi-automatic or fully automatic stator production lines. Standalone units allow growing workshops in Tetovo to automate progressively—starting with slot paper inserting and coil winding, then adding hydraulic coil forming and double-sided lacing as production volumes scale.