Automatic Servo System Stator Coil and Wedge Inserting Machine
Simultaneous dual-servo insertion of pre-wound copper coils and slot wedges in one synchronized mechanical stroke.
Engineered in our Dongguan manufacturing center and calibrated for North American industrial specifications. Every system is built to your precise stator lamination drawings and slot geometries.
Simultaneous dual-servo insertion of pre-wound copper coils and slot wedges in one synchronized mechanical stroke.
High-speed multi-axis indexing for specialized transformer and external rotor architectures with dual stations.
Hydraulic-assisted multi-slide radial compression ensuring strict coil overhang clearance for rotor assembly.
High-tonnage gear-driven concentric press fitting protecting precision bearing seats and shaft runout.
Dual-station automatic flyer winder with programmable tensioners for tight, balanced electromagnetic windings.
Batch production workhorse for pump, cooler, and power tool motors handling copper and aluminum magnet wires.
Intermediate pre-forming tooling establishing proper coil boundary dimensions before lacing phase.
High-rigidity lathe unit with PLC automation maintaining exact air-gap dimensional tolerances.
A deep dive into slot fill factor optimization, copper stress mitigation, and mechanical tooling dynamics for modern electric motor production.
Traditional coil insertion methods relied on pneumatic cylinders or non-synchronized hydraulic rams, causing asymmetric mechanical pressure on magnet wire bundles. Our custom OEM automated inserters deploy dual-axis AC servo drives (Siemens or Mitsubishi architectures) that link the coil push-rod linear vector directly to the wedge feeding stroke. This eliminates slot-mouth pinching, prevents insulation shear, and achieves cycle repeatability within ±0.02 mm.
In high-efficiency electric motors (IE3, IE4, and specialized marine electric propulsion), slot fill factor is directly linked to power density and thermal conductivity. Our custom blade tooling utilizes vacuum heat-treated Cr12MoV/SKD11 tool steel ground to mirror finishes (Ra ≤ 0.2 μm). The precision-engineered push fingers glide between the lamination teeth, guiding enamelled copper wires into narrow slot openings without stretching the outer dielectric enamel.
The automated wedge assembly feeds roll-fed insulation paper (Nomex, DMD, Mylar, or composite electrical kraft paper), performs precise edge creasing, cuts the wedge to exact stator core stack lengths (±0.1 mm), and pushes the wedge behind the coil package into the stator tooth notch. This concurrent action protects against flashover faults, lowers partial discharge risks, and ensures pristine compliance with CSA C22.2 No. 100 electrical standards.
| Performance Parameter | Manual Insertion & Tamping | Semi-Automatic Hydraulic Inserter | Zunqi Dual-Servo Automatic Inserter |
|---|---|---|---|
| Cycle Time (36-Slot Stator) | 180 – 300 Seconds | 35 – 55 Seconds | 12 – 18 Seconds |
| Slot Fill Factor Capability | 60% – 68% Max | 68% – 73% Max | Up to 78% – 82% |
| Enamel Coating Micro-Damage Rate | 3.5% – 5.0% Typical | 1.2% – 2.0% | < 0.05% (Controlled Servo Vector) |
| Wedge Length Accuracy | ±1.5 mm (Hand Cut) | ±0.5 mm | ±0.1 mm (Precision Stepper Feed) |
| Core Stack Height Range | Variable / Operator Dependant | 20 – 160 mm | 10 – 250 mm (Custom Tooling Available) |
Empowering manufacturers across Metro Vancouver, the Fraser Valley, and the Pacific Northwest to capitalize on zero-emission mandates and clean industrial modernization.
Along the Burrard Inlet, the Fraser River industrial corridor, and the North Vancouver naval shipyards, fleet operators are transitioning tugs, passenger ferries, and shore-power auxiliary units from diesel to electric hybrid drives. Our automatic stator coil inserters enable local naval engineering facilities and contract manufacturers to wind and assemble heavy-duty permanent magnet synchronous motors (PMSM) and marine induction motors locally, eliminating overseas lead-time bottlenecks.
Driven by the Province of British Columbia's CleanBC Roadmap to 2030 and the City of Vancouver’s Zero Emission Building Plan (ZEBP), commercial and residential heat pump demands have surged. Modern heat pumps require high-efficiency, multi-speed inverter-driven compressor motors. Our inserting equipment accommodates variable stator lamination stacks and skewed slots, ensuring high slot fill without wire damage for continuous duty cycles.
Heavy industry operations throughout the BC interior and Vancouver Island rely on rugged industrial electric motors for sawmills, pulp refiners, and mining extraction conveyers. When severe vibration or thermal stress causes motor burn-out, regional electrical apparatus repair shops rely on our automated inserters and precision forming machines to re-tool and re-manufacture OEM stators to exact factory specs in hours rather than weeks.
High cost of living and acute shortages of skilled motor winding winders across the Lower Mainland make manual coil placement financially unsustainable. Automation preserves margin while standardizing quality.
Supply chain vulnerabilities have spurred Tier-2 and Tier-3 equipment makers in Richmond, Burnaby, and Surrey to establish in-house electromagnetic motor production lines rather than importing finished motors.
BC Hydro incentives reward ultra-efficient motors. Automatic insertion ensures tight coil pitch, low winding resistance, and balanced phase impedance necessary to clear rigorous Canadian electrical ratings.
Based in Qishi Town, Dongguan, Zunqi Intelligent Equipment Co., Ltd. delivers direct factory engineering, bespoke tooling, and robust North American support.
We build customized push fingers, guide bars, and wedge blades directly matched to your CAD drawings (DWG/DXF/STEP) or physical stator samples.
Send physical lamination samples to our facility. We perform trial coil windings and insertions, sending back high-resolution video proof prior to crating.
Electrical cabinets configured for Canadian plants: Siemens, Mitsubishi, Panasonic, Schneider, or Omron PLCs with English HMI interfaces.
Solid fumigation-free wooden export crating with internal VCI anti-rust barrier protection, routed directly to Delta Port or Vancouver Harbor.
Every piece of custom motor automation machinery adheres to an uncompromising 8-stage manufacturing cycle before factory sign-off.
Verification of stator slot count, internal/outer diameter, skew angle, and copper wire gauge.
Bespoke push fingers, guide bars, and wedge blades modeled with precision tolerances.
Hardened SKD11 alloy machining, vacuum heat treatment to HRC 58-62, and precision mirror grinding.
Servo driver matching, PLC ladder logic configuration, and CSA C22.2 electrical safety adherence.
High-precision linear guides, pneumatic cylinder alignment, and dynamic balance calibration.
Actual coil insertion test runs using client-specified magnet wire, measuring slot fill and integrity.
Continuous dry-cycling tests to assess thermal stability of servos, sensors, and mechanical linkages.
Corrosion preventative coating, vacuum plastic encapsulation, and heavy-gauge plywood crating.
Detailed answers addressing electrical standards, voltage compliance, tooling changeovers, and trans-Pacific logistics.
Yes. While our standard industrial systems operate on 220V single-phase or 380V three-phase 50Hz, we routinely customize internal power distribution blocks, transformers, and servo power supplies for Canadian plant standards. We accommodate 480V 60Hz (prevalent in British Columbia industrial parks) and 575V/600V systems common in heavy processing mills, alongside 208V/240V options. Control circuits are stepped down to 24VDC for maximum operator safety.
Our tooling is modular and quick-change. The core blade package (push fingers and wedge guides) is precision CNC-machined according to your stator lamination drawings. For motors sharing the same stator internal diameter and slot profile but varying in stack height (e.g., 40 mm, 65 mm, 90 mm), adjustments are made digitally via the HMI touchscreen by altering the servo stroke length—requiring zero mechanical disassembly. For different internal diameters or slot profiles, a complete tooling swap takes under 30 minutes.
Production and custom tooling fabrication typically take 25 to 35 business days depending on model complexity. Ocean freight from Shenzhen/Guangzhou ports to the Port of Vancouver (Centerm, Vanterm, or Deltaport) requires approximately 14 to 20 days on the water. We supply complete commercial documentation, packing lists, HS-code designations (typically HS 8479.89), and certificates of origin for smooth Canadian CBSA customs clearance. DDP (Delivered Duty Paid) terms can also be coordinated.
Every machine comes backed by our standard 1-year factory warranty. We provide comprehensive bilingual (English/Chinese) video training, schematic documentation, and interactive remote commissioning via live video. Because our electrical cabinets utilize international brand components (such as Siemens, Schneider, and Omron), replacement relays, sensors, and breakers can be procured off-the-shelf locally in Vancouver through distributors like Nedco, Wesco, or Guillevin. Custom machined wear parts (such as push fingers and blades) are stocked in Dongguan and can be air-dispatched via DHL/FedEx within 48 hours.
Absolutely. Aluminum wire exhibits lower tensile strength and higher elongation properties compared to copper, making it vulnerable to stretching and surface tearing on poorly finished tooling. Our tooling features high-density micro-polished chrome coatings and radiused entry throats designed specifically to minimize mechanical friction. By programming custom acceleration/deceleration S-curves into the servo motor drive, wire tension is strictly governed below the plastic deformation limit throughout the insertion stroke.
To provide an exact technical quotation and tooling design, our engineering team requires: (1) Stator lamination drawing showing outer diameter, inner diameter, and slot profile geometry; (2) Core stack height range (min/max mm); (3) Wire diameter and number of parallel conductors per slot; (4) Coil winding diagram (turns per coil and pitch); and (5) Insulation paper material and thickness (e.g., 0.18 mm Nomex or 0.25 mm DMD). If CAD files are not immediately available, mailing one physical raw stator core to our facility is ideal.