Explore our high-speed, servo-synchronized manufacturing modules engineered to eliminate copper enamel micro-fracturing, ensure precise slot insulation, and deliver repeatable cycle times for commercial series production.
High-precision dual-axis lathe system designed for dynamic balancing, commutator surface fine-turning, and rotor core OD concentricity lathing with micron-level tolerances.
High-speed dual-flyer winding machine featuring electronic wire tension feedback, automated indexing, and precise hook connection for high-RPM universal and DC armatures.
Synchronous insertion tooling designed to drive phase windings and insulating wedges into stator slots simultaneously without scuffing the enamel coating or ripping paper wedges.
Automated insulation taping and belt-wrapping station for heavy-current starter motor field coils, providing uniform overlap pitch, tight dielectric tension, and automated tail cutting.
Robust hydraulic-servo combined embedding unit built for medium-to-large industrial stator cores. Pushes heavy wire packages with continuous monitoring of thrust to eliminate pin jamming.
Engineered specifically for automotive alternator stators. Features hardened guide blades and specialized push tooling tailored for continuous wave and concentrated coil profiles.
Horizontal indexing insulation station with integrated roll feeding, heating, edge-creasing, cutting, and push insertion for high-speed alternator stator core manufacturing.
Intelligent resistance fusing machine utilizing constant-current feedback and pneumatic-servo pressure balancing to fuse enameled copper wire leads directly to commutator tangs.
Modern electrical powertrain manufacturing demands uncompromising repeatability, zero copper insulation degradation, and elevated thermal conductivity across every electromagnetic core. A standard industrial stator production line is not merely a collection of standalone assembly stations, but a tightly coupled, mechatronic ecosystem where tension variation, mechanical tolerances, and micro-dielectric clearance parameters must be maintained within sub-millimeter boundaries.
The manufacturing process begins with precision laminated silicon steel stacks. The integrity of the lamination interlocks and slot alignment directly dictates the tooling clearance of wedge inserters and winding guide needles. Even an axial skew of 0.05 mm across a 150 mm stack height can lead to razor-edge pinching of insulation paper. Zhejiang Rilvo Automation addresses this challenge by combining custom-engineered tooling mandrels, precision EDM-machined guide blades (quenched to HRC 60-62), and adaptive multi-axis servo drives that continuously sense insertion resistance in real time.
Multi-stage electromagnetic tensioners maintain uniform wire strain throughout the flyer acceleration and deceleration cycles, preventing cross-sectional necking and resistance variations.
Patented guide blade kinematics ensure that pre-formed coil bundles enter the stator slot bore coaxially, ensuring zero mechanical contact between magnet wire enamel and lamination tooth edges.
Modular quick-release clamping fixtures enable batch changeovers across varied stack heights and slot numbers in under 25 minutes, preserving high Overall Equipment Effectiveness (OEE).
To assist manufacturing system integrators and automotive Tier-1 procurement engineers, the technical matrix below defines the sequential dependencies, mechanical execution methods, and standard cycle capabilities across our automated stator equipment line.
| Manufacturing Stage | Primary Equipment | Actuation Technology | Typical Cycle Time | Critical Quality Parameter | Automation Level |
|---|---|---|---|---|---|
| Stage 1: Slot Insulation | DFC-1 Horizontal Paper Inserter | Dual-Servo Indexing + Shear | 0.35 - 0.55 s / slot | Cuff Creasing Integrity & Edge Overhang | Full Auto |
| Stage 2: Coil Generation | DB-5C Multi-Axis Winder | CNC Synchronous Spindle | 12 - 25 s / pole group | Tension Regularity & Turns Counter (0 Error) | Full Auto |
| Stage 3: Wire & Wedge Insertion | Automatic Servo Inserting Machine | Closed-Loop Servo Pushrod | 18 - 32 s / stator | Zero Enamel Scuffing & Slot Wedge Depth | Full Auto |
| Stage 4: Intermediate Forming | Hydraulic Stator Expander | Segmented Radial Die Servo | 6 - 10 s / stator | End-Turn Flare Angle & Bore Clearance | Semi-Auto |
| Stage 5: Phase Lacing / Binding | Dual-Head Automatic Lacer | Multi-Axis Needle Synchronizer | 15 - 28 s / stator | Stitch Pitch Tension & Lead Wire Tie-down | Full Auto |
| Stage 6: Final Shaping & Sizing | 3D Precision End-Turn Shaper | Internal/External Cam Hydraulic | 8 - 14 s / stator | Envelope Dimensions (OD, ID, Height Limits) | Full Auto |
| Stage 7: Trickle Impregnation | DQ-226 Continuous Varnish Line | Precision Peristaltic Metering | Process Variable (Heated) | Resin Penetration Depth & Void Elimination | Full Auto |
*Note: Cycle times vary depending on stator core stack height, lamination slot volume, wire diameter, and designated wire bundle parallel strand count.
As global e-mobility platforms migrate to 800V architectures and industrial operations mandate strict carbon neutralization and IE5 ultra-premium efficiency, manufacturing lines must evolve beyond traditional single-wire round copper paradigms. Equipment specifiers and factory procurement teams must anticipate several critical market shifts:
Flat wire hairpin technology continues to expand from traction motors into high-end auxiliary, alternator, and pump drives. Flat rectangular wire offers slot-fill ratios exceeding 80%, demanding specialized CNC 2D/3D wire bending, paper shaper tools, and CNC laser stripping stations.
Modern stator export lines are increasingly specified with edge computing nodes that monitor insertion force curves, fusing current waveforms, and winding wire feed lengths. Deviations greater than 3% trigger automatic rejection prior to costly secondary processing.
Fixed monolithic transfer lines are giving way to cell-based modular workstations linked by flexible AGV/AMR material transfer. Buyers favor equipment platforms where the core base machine accommodates new lamination diameters through bolt-on tooling cassettes.
Direct from our 60,000 m² advanced manufacturing facility in Sanmen, Zhejiang, we combine complete in-house CNC parts machining, customized tooling engineering, and rigorous FAT sample validation.
Unlike trading assemblers who outsource critical components, over 85% of our tooling, guide needles, and forming dies are machined in-house using CNC machining centers, precision cylindrical grinders, and slow-wire EDM to guarantee exact tolerances.
Led by senior chief engineers recognized with national technical model awards, our mechanical and electrical engineering teams design tailor-made tooling packages directly from your CAD part drawings, slot geometries, and winding schematics.
Our production facilities maintain active ISO9001:2015 certification, China Compulsory Certification (3C), and export-grade CE electrical documentation. All equipment features dual-channel safety circuits, interlocked optical light curtains, and industrial PLC hardware.
We do not ship on assumptions. Every export machine undergoes a comprehensive Factory Acceptance Test (FAT) utilizing the customer's actual lamination stampings, copper wire, and insulation paper. HD video verification and dimensional reports are provided before dispatch.
Located near Ningbo and Shanghai maritime ports, we ship under FOB, CFR, CIF, and EXW terms. All machinery is treated with anti-corrosion barrier coatings, vacuum-sealed in heavy moisture barrier foil, and crated in solid ISPM-15 export-compliant wooden crates.
Global technical support includes digital remote PLC diagnostics, video commissioning assistance, on-site engineer deployment, and a guaranteed 10-year spare parts inventory covering wear tooling, insertion blades, and wire guides.
Direct, technical answers addressing the critical parameters engineering managers and procurement officers analyze prior to machinery acquisition.
Our engineering department requires your stator lamination DXF/DWG file, stack height range, slot opening width, wire diameter (including bare and outer enamel thickness), and wire bundle parallel strand count. We evaluate the slot aperture ratio against insertion blade wall thickness to ensure the insertion tooling can pass through the bore without contacting the tooth tips while maintaining a slot fill factor that avoids over-compression.
Enamel protection relies on three coordinated mechanisms: (1) Tooling material selection: guide blades and pushers are manufactured from Cr12MoV or high-vanadium alloy steel, vacuum heat-treated to HRC 60-62 and polished to Ra < 0.1 μm; (2) Mechanical kinematics: servo pushers apply continuous, non-pulsing thrust while secondary guide fingers keep end turns aligned; (3) Pre-expansion: the lamination teeth are aligned with automated centering rings to eliminate slot edge shear steps.
Yes. Stack height adjustments are programmed via the HMI touch screen; servo axes automatically compensate for stroke length without changing hardware. For stators sharing identical OD, ID, and slot counts but varying stack heights, zero mechanical tooling changes are needed. When transitioning between differing bore diameters or slot numbers, modular tooling cassettes can be interchanged in under 20 to 30 minutes using quick-connect locator pins.
The SDN-32ZH utilizes closed-loop constant-current inverter power control with real-time dynamic resistance tracking. As the tungsten electrode heats the copper hook, burning off the enamel insulation, a linear displacement sensor measures the exact collapse depth of the hook tang. The weld terminates based on energy, time, or hook deformation thresholds, preventing overheated brittle connections or cold welds with elevated contact resistance.
We support FOB (Ningbo/Shanghai), CFR, CIF, and EXW trade terms. Standard commercial payment structures are 30% T/T advance deposit upon drawing sign-off and order confirmation, 60% upon successful Factory Acceptance Testing (FAT) validated by video/in-person trial run, and 10% balance prior to bill of lading release or upon arrival. Standard lead time ranges between 35 to 65 days depending on tooling customization.
Each machine ships with comprehensive English operation manuals, electrical/pneumatic schematics, wear-part drawings, and interactive video operation tutorials. For automated cell lines, we offer remote commissioning via secure VPN link directly into the machine PLC. Furthermore, experienced Rilvo field service engineers are available for worldwide deployment to supervise installation, perform electrical integration, and conduct operator training.
Submit your stator/armature drawings, lamination specifications, and target output. Our application engineering team will provide a tailored station layout, cycle time simulation, and commercial proposal within 24 business hours.
