High-Speed Stator Winding Machines
Our needle winding machines are high-speed stator winders. The High Speed SPW series uses fixed or oscillating needles and a vertical spindle that allows for either square track or elliptical needle paths, allowing for higher fills and improved winding. The IOW series can be configured for: multi-needle – open core/flat winding; dual-head, dual-needle – coil winding outer, inner, or segment; and single-head – coil winding outer or inner.
Needle winding is the preferred winding solution for stator designs that demand high slot fill, precise wire placement, and compact coil geometry. It is especially effective for applications where narrow slots, complex tooth shapes, or reduced end turns make conventional winding methods impractical.
Why Choose Needle Winding
Needle winding is best suited for stators where performance, efficiency, and precision are critical. By guiding the wire directly into each slot using controlled needle motion, this method enables tighter winding patterns and improved copper utilization.
This makes needle winding an ideal solution for manufacturers facing challenges such as:
- Narrow or deep stator slots
- High copper fill requirements
- Compact motor designs
- Repeatable quality in automated production
| Wire AWG: | 17 – 27 |
|---|---|
| Stack Height: | 10 – 100mm |
| Number of Slots: | Any |
| Core | OD 60 – 300mm | ID 20 – 200mm |
| Number of Axes: | 3 – 4 |
These are typical product sizes. The capability of the machines to manufacture each stator depends on a number of factors including end turn dimensions, winding pattern, bus bar design, etc. Please contact an Odawara sales representative with your unique requirements.
Applications for Needle Winding Machines in Electric Motor Manufacturing
Needle winding machines are high-speed stator winding solutions used when motor designs require precise wire placement, high slot fill, and compact coil geometry. This technology is commonly applied in electric motors used across automotive, household appliance, industrial, and medical applications, where efficiency, reliability, and repeatable quality are critical.
Odawara’s needle winding solutions support both high-performance motor designs and automated production, helping manufacturers like you improve output and consistency across your lines.
See the chart below for examples of products with an electric motor commonly manufactured with needle winding technology.
| Automobiles | HEV drive & generator, radiator cooling fan, ABS/EESC, EPS, various pumps, etc. |
|---|---|
| Household Electrical Appliances | Air conditioner, refrigerator, vacuum cleaner, washing machine, juicer, mixer, etc. |
| Industry, Medical Equipment | Power tool, generator, MRI, various pumps, etc. |
| Industry, Medical Equipment AO/AV Equipment | Printer, copy, fax, HDD, DVD/CD, etc. |
Typical Stator BLDC Manufacturing Line Structure
STC
Core Stacker
CEL
Slot Cell Inserting
SES
End Cap Inserter/Press
IOW, SPW, OLW, FIW, HAW
Single or Multiple Needle Winding Machines
TIS
Lead Wire Processing Machine
TEM
Terminal Insertion
TUF
Terminal Welding
Stator Tester
Automation and Material Handling
In addition to needle winding machines, Odawara provides automation and material handling solutions that support complete stator production lines. These services help streamline part flow, reduce manual handling, and ensure consistent integration across winding, testing, and downstream processes.
- Material Handling
- Dunnage Load/Unload
- Automated Machine Load/Unload
- Robotic Systems
- Test Equipment
- Part Transfer Systems: Conveyors and Transfer Pallets
- Vision/Inspection Systems
- Quality System Integration: Manufacturing Operating Systems (MOS) and Manufacturing Engineering Systems (MES)
