Model CJL-7
CJL-7 Flat Motor Coil Winding Machine
Specialized flat copper strip coil winder built for heavy automotive starters and low-voltage high-current induction assemblies requiring zero cross-over wire distortion.
Engineered for high slot fill rates, copper insulation preservation, and repeatable CNC tension control across continuous production shifts.
Specialized flat copper strip coil winder built for heavy automotive starters and low-voltage high-current induction assemblies requiring zero cross-over wire distortion.
Precision resistance hot-staking system fusing commutator segments with enamelled wires without prior stripping; features constant-current closed-loop micro-monitoring.
Servo-hydraulic shaft-to-lamination core insertion station with micron-level displacement limits, pressure-depth curve tracking, and auto defective part sorting.
Multi-station CNC winding station featuring synchronous jump tooling, multi-strand winding arms, and automatic transfer arrays designed for industrial pump and fan stators.
High-speed slot cell insulating paper feeding, cutting, creasing, and indexing insertion station, compatible with Nomex, DMD, and polyester film barrier compounds.
Automated fiberglass, Nomex, or adhesive composite tape wrapping machine for pre-formed starter field coils with adjustable rotational pitch and stable overlap tensioning.
Medium-frequency inverter welder engineered for copper-clad aluminium (CCA) and pure copper commutator tang joining; eliminates thermal softening and surface spatter.
Ultra-precision diamond lathe station turning copper commutators and stack surfaces; maintains commutator segment roundness within 0.002mm to suppress carbon brush sparking.
In high-capacity electromagnetic core fabrication, the transition from manual skeletal winding to automated multi-pole insertion involves complex tribological and stress dynamics. When enamelled magnet wire is inserted into laminated stator iron cores, excessive mechanical friction against the tooth tips risks micro-fracturing the primary polyamide-imide insulation coat. Rilvo's automated stator winding and inserting architecture addresses this through synchronized dual-axis servo systems: high-hardness alloy push blades advance the pre-wound coil bundles concurrently with the slot wedge guides, maintaining a strictly regulated entry angle.
By engineering specialized guiding blades with surface roughness values of Ra ≤ 0.2 μm and applying diamond-like carbon (DLC) surface treatments, the pulling and push forces exerted on copper windings are drastically reduced. This ensures that even high-temperature Grade 200 copper wires with ultra-dense copper fill factors slide cleanly into deep, narrow stator slots. The simultaneous feed, cut, fold, and insert cycles for wedge papers—such as Nomex-Mylar laminates—eliminate localized air pockets, preventing subsequent partial discharge phenomena in heavy-duty European electrical grid applications.
Utilizes active closed-loop electronic magnetic hysteresis tensioners. Real-time feedback eliminates tension spikes during rapid flyer acceleration and deceleration, ensuring constant elongation below 0.5% and preserving insulation dielectric breakdown resistance over 5 kV.
Modular wedge magazine feeds paper strips directly alongside winding insertion blades. Dual cam linkage coordinates push rods with slot indexers, guaranteeing that slot liners and retention wedges are seated without pinches or delamination.
Quick-release chucks and pre-calibrated push-fork cassettes allow full mechanical line changeovers between different stack heights, core outer diameters, and slot counts (12 to 72 slots) in under 35 minutes, maximizing lean production flexibility.
Aligning modern automated electric machine manufacturing with the unique industrial capabilities and logistics infrastructure of eastern Latvia.
Daugavpils has a historic legacy in railway locomotive maintenance. Rilvo's heavy flat-wire winders and embedding setups support auxiliary motor rebuilding, traction blowers, and compressor motor refurbishment under European rail certifications.
Local workshops rebuilding commercial starter motors and heavy vehicle alternators rely on models such as DFC-1 and SDN-32ZH for rapid slot re-insulation and commutator hot-staking, eliminating manual wire scraping steps entirely.
With Latvian and Baltic manufacturing shifting toward high-efficiency industrial heating, ventilation, and wastewater infrastructure, our automatic stator winders produce IE3/IE4 standard induction motors with high thermal endurance.
Supports emerging light EV, e-mobility hub drive, and agricultural robotic drive programs located in the Latgale Special Economic Zone (SEZ), providing flexible BLDC inner stator winding and precision rotor shaft pressing.
1. Transition to EU Ecodesign Regulation Compliance: Throughout Latvia and Northern Europe, electric drive purchasers must satisfy stringent European Ecodesign efficiency thresholds (EU 2019/1781). This mandate severely restricts the allowable parasitic resistance within stator coils. Motor rebuilders and OEMs in Daugavpils can no longer depend on loose, low-fill manual insertions. Automated mechanical winding and inserting solutions deliver tightly packed, geometrically uniform slot filling, maximizing active electrical material while minimizing copper losses and thermal rise.
2. Nearshoring and Re-Industrialization of Heavy Transport: Global supply chain disruptions have triggered extensive nearshoring across Baltic supply hubs. Daugavpils' strategic junction connecting transport corridors necessitates rapid turnaround times for electric traction overhauls and regional industrial motor spares. Deploying automated CNC stator production lines allows local plants to scale daily output by 400% without proportionate increases in specialized manual labor, while maintaining absolute conformity to ISO9001 and CE directives.
Established in 1998, Rilvo has grown from a specialized precision toolmaker into a recognized High and New Technology Enterprise in Zhejiang Province. Our expansive campus encompasses nearly 60,000 m² of industrial property, with over 20,000 m² of modern workshops and 150+ in-house precision machining centers.
Because every tooling fixture, insertion tooth, winding flyer, and clamping chuck is machined directly in our own facilities, we retain strict control over concentricity, mechanical tolerances, and thermal stability. Our technical leadership is spearheaded by senior industry engineering champions, backed by 36 dedicated R&D engineers holding 17 national invention and utility patents.
Addressing freight logistics, technical validation, power standards, and after-sales commissioning for Baltic enterprises.
Yes. All machines built for shipment to Daugavpils or other European destinations are pre-wired for 400V ±10% 3-phase, 50Hz electrical supply. Control systems utilize genuine CE-marked components, including Schneider or Omron low-voltage switchgear, Delta or Mitsubishi servos, and PLC interfaces configured in full English.
Before packing, clients send physical samples of their laminated stator stacks, insulation paper, and copper wire. We perform rigorous continuous test-runs, measure slot fill and dielectric resistance, record comprehensive multi-angle 4K trial videos, and issue formal pre-shipment FAT (Factory Acceptance Test) sign-off logs.
Consignments ship in sea-freight containers directly from Ningbo Port (located ~2 hours from our factory) directly to the Port of Riga, Latvia, with an ocean transit time of roughly 35 to 45 days. From Riga Port, overland multimodal rail or road carriage delivers the crated machinery directly to your Daugavpils production floor.
We manufacture insertion blades, wedge guide channels, wire guide nozzles, and push plates from hardened tungsten carbide and premium SKD11 tool steels subjected to vacuum cryogenic heat treatment. Every exported machine comes supplied with a baseline 2-year wear-parts maintenance kit, and emergency spares ship worldwide via air courier.
Each unit includes detailed illustrated manuals, electrical schematics, and high-definition video commissioning tutorials. We supply secure remote desktop and IoT telemetry assistance for fine PLC parameter tuning. If required, Rilvo commissioning engineers can be deployed on-site to assist with full turnkey assembly line integration.
The Minimum Order Quantity (MOQ) is strictly 1 set, allowing Daugavpils manufacturers to pilot a single station before committing to a multi-stage production line. We support standard international trade terms including FOB Ningbo/Shanghai, CIF Riga, or EXW, with secure commercial bank T/T payments accepted in USD or EUR.
Send our senior engineering desk your stator lamination drawings, stack heights, slot counts, and wire diameter specifications. We will prepare an end-to-end tooling proposal, cycle time analysis, and competitive quotation within 24 business hours.