From individual cell insulation inserting to multi-station automated coil winding and precision rotor turning, our field-proven production units integrate directly into European and UK production protocols.
The manufacturing sector in Leeds, Bradford, Kirklees, and the wider West Yorkshire area is historically revered for world-class mechanical, automotive, and heavy industrial drive systems. As modern electrification demands higher power densities and stringent thermal ceilings across IE3, IE4, and emerging IE5 motor designs, the manual or semi-automated lamination of stator slot insulation introduces unsustainable risks: dielectric breakdown, uneven slot fullness, pinhole tears from non-uniform edge creasing, and excessive labor cost per stator stack.
For machine builders and Tier-1 sub-assembly contractors in Leeds, our Custom OEM Slot Cell Inserting Machines (often classified under industrial automation as Stator Slot Paper Folding and Inserting Equipment) solve fundamental yield bottlenecks. Operating through automated roll feeding, programmable mechanical or servo-driven cuffing (hemming), precision shearing, and high-speed multi-axis indexing into stator lamination slots, our machines establish flawless dielectric integrity before coil insertion takes place.
The core mechanism of a custom Zunqi slot cell inserter utilizes a multi-station mechanical cam or direct-drive servo arrangement. The insulation material (typically 0.15mm to 0.35mm thickness) is pulled continuously from an uncoiling spool equipped with responsive mechanical damping. A pneumatic or dual-roller feeder advances the strip to an adjustable scoring punch, creating uniform edge cuffs along both borders. These cuffs prevent the paper from shifting longitudinally when heavy magnet wire bundles are inserted downline.
Once scored and cuffed, a high-carbon alloy shearing blade slices the cell liner to an exact length matching the stator core stack height plus cuff overhang allowance (±0.2mm tolerance). A hardened insertion push rod drives the shaped cell liner into the stator lamination slot held concentric by an expanding mandrel. The indexer turns the stator core through servo pulse instructions to the subsequent slot, completing an entire 24-slot or 36-slot stator ring in under 15 to 22 seconds, including part handling.
Manufacturing facilities throughout Hunslet, Stourton, Cross Green, and Morley face increasing labor scarcity for repetitive electro-mechanical coil-winding and assembly tasks. Furthermore, the rapid growth of bespoke low-volume, high-mix (HMLV) electric actuators for offshore wind, municipal water pump replacements, and railway propulsion makes rigid, dedicated tooling prohibitively expensive. Zunqi overcomes this hurdle by designing modular quick-change tooling fixtures. A single chassis can accommodate multiple stator stack heights (from 15mm up to 250mm) and varying bore diameters (from 20mm up to 160mm) through a tooling changeover accomplished in under 20 minutes.
Fully validated tooling for standard and exotic composite papers:
Every OEM slot inserting machine produced in our facility incorporates hardened materials, heavy cast housings, and globally recognized control platforms to ensure rapid local maintenance in the UK.
Equipped with micro-adjustable tungsten carbide creasing wheels. Produces single-edge or double-edge folded cuffs from 2.5mm to 5mm width without puncturing sensitive Nomex or laminated PET film backings.
High-resolution absolute encoders combined with Delta, Siemens, or Mitsubishi servo motors ensure pitch accuracy to ±0.05 degrees, accommodating irregular or skip-slot stator configurations effortlessly.
Cutting blades, forming dies, and push wedges undergo vacuum heat treatment and cryogenic hardening to 60–62 HRC, guaranteeing over 2,500,000 continuous shearing cycles before requiring regrinding.
Dedicated industrial touchscreen interface enables storage of over 100 individual stator recipes. Adjust slot counts, feed lengths, push stroke speed, and cuff clearances instantly with zero mechanical disassembly.
Optoelectronic safety light curtains and emergency stop interlocks comply with CE Machinery Directive 2006/42/EC and UK Supply of Machinery (Safety) Regulations for zero-hazard operator feeding.
Centralized progressive oil distributor directs precise metered lubrication to main slide rails, eccentric journals, and indexing bearings, drastically lowering thermal friction and maintenance downtime.
Benchmark operational tolerances and electrical ratings across our primary standard and heavy-duty chassis series before custom OEM tooling fabrication.
| Technical Parameter | Standard Series (Compact Stators) | Industrial Medium Series | Heavy-Duty Traction Series |
|---|---|---|---|
| Stator Core Outer Diameter (OD) | Ø 30 mm – Ø 120 mm | Ø 60 mm – Ø 220 mm | Ø 100 mm – Ø 380 mm |
| Stator Core Inner Diameter (ID) | Ø 15 mm – Ø 75 mm | Ø 30 mm – Ø 140 mm | Ø 50 mm – Ø 260 mm |
| Stack Lamination Height | 10 mm – 90 mm | 20 mm – 160 mm | 40 mm – 350 mm |
| Insertion Cycle Speed | 0.45 – 0.65 s / slot | 0.5 – 0.8 s / slot | 0.8 – 1.2 s / slot |
| Insulation Thickness Range | 0.12 mm – 0.25 mm | 0.15 mm – 0.35 mm | 0.20 mm – 0.50 mm |
| Cuff Width (Adjustable) | 2.0 mm – 4.0 mm | 2.5 mm – 5.0 mm | 3.0 mm – 7.0 mm |
| Standard Operational Power | 220V 1-Phase / 380V 3-Phase, 50Hz | 400V / 415V 3-Phase, 50Hz (UK Standard) | 415V 3-Phase, 50Hz / 60Hz Optional |
| Core Control Architecture | Dedicated High-Speed PLC + Stepper | Mitsubishi / Siemens PLC + Servo | Multi-Axis Synchronous CNC Servo |
Clarifications on UK electrical integration, bespoke tooling validation, freight logistics to Yorkshire, and post-installation operational warranties.
Yes, absolutely. While our standard mainland configurations utilize 220V single-phase or 380V three-phase systems, we routinely build control cabinets to match UK three-phase 415V (±10%) 50Hz standards. We utilize electrical switchgear, isolators, and contactors from European brands such as Schneider Electric or Siemens to facilitate routine maintenance by in-house technicians in Leeds.
Standard fabrication and custom tooling design typically require 25 to 35 working days, which includes trial insertion testing with your provided stator core samples. Ocean freight from our hub to the Port of Felixstowe, Southampton, or Liverpool takes roughly 28 to 35 days, followed by domestic haulage directly to your facility in Leeds, Kirkstall, or Cross Green via container lorry.
We enforce a strict pre-shipment FAT (Factory Acceptance Test) procedure. You provide us with your 2D/3D stator drawings and forward 5 to 10 un-wound stator lamination samples. We manufacture the tooling dies, perform trial run insertions on your actual parts, inspect cuff retention and insulation integrity under high-voltage breakdown testers, and supply comprehensive high-definition video documentation along with measured sample batches for your engineering sign-off.
Yes. Many high-efficiency induction and permanent magnet synchronous motors utilize alternating slot depths or asymmetric slot wedges to mitigate cogging torque. With our servo-indexed CNC systems, individual slot push depths and indexing angles can be programmed individually within the touchscreen software, eliminating the mechanical limitations of legacy single-speed ratchets.
All Zunqi equipment comes with an uncompromised 1-year comprehensive mechanical and electrical warranty. We supply a complete initial consumables and wear kit with every machine, containing extra push blades, creasing cutters, and heating thermocouples. Technical assistance is provided via remote video diagnostics with English-fluent automation engineers, with replacement parts dispatched via express DHL air courier within 24 to 48 hours.
Combining 17 years of specialized machine tool export pedigree from Dongguan with exacting European machine tooling tolerances.
Unlike trading intermediaries, Zunqi Intelligent Equipment operates dedicated CNC machining, tool making, and assembly halls in Dongguan, China, certified onsite through Alibaba and third-party inspection agencies.
From slot insulation to coil winding, coil & wedge inserting, end-turn forming, automated lacing, and rotor fine-lathe finishing—our equipment suite guarantees synchronized line cycle times without inter-station delays.
All finished machines are treated with anti-rust VCI barrier oil, vacuum-wrapped in heavy moisture-proof plastic film, and secured to heavy timber skids enclosed inside fumigation-free ISPM-15 plywood freight crates.