CNC Transformer Winding Machine
Fenghua supplies CNC transformer winding machines for copper and aluminum conductor winding in power, distribution and dry-type transformer coils. CNC control provides programmable winding and conductor positioning for repeatable coil production.
- CNC-controlled winding
- Automatic wire traversing
- Copper and aluminum conductor winding
- Programmable turn counting and winding speed
- Customized mandrels and tooling
- Technical Specifications
- Winding Performance
- Machine Selection
CNC transformer winding machines are configured according to conductor size, coil dimensions, winding load and automation requirements. Specifications should therefore be confirmed according to the selected machine model.
| Item | Buyer Confirmation |
| Processing Material | Copper / Aluminum |
| Conductor Type | Round Wire / Rectangular Wire / Strip According to Configuration |
| Maximum Winding Load | Confirmed by Approved Machine Model and Mandrel |
| Spindle Speed Range | Confirmed Under Representative Winding Load |
| Spindle Torque | Confirmed for Proposed Coil and Mandrel |
| Effective Winding Length | Confirmed Against Finished Coil and Mandrel Drawing |
| Winding Direction | Forward / Reverse |
| CNC Control System | Controller Brand, Model and Software Version to Be Confirmed |
| Wire Traverse | CNC-Controlled Where Included |
| Traverse Range & Pitch | Confirm Range, Pitch and Adjustment Method from Coil Drawing |
| Turn Counting | Forward / Reverse Counting and Target-Turn Functions as Configured |
| Program / Recipe Storage | Confirm Capacity, Stored Parameters and Backup Method |
| Tension Control | Manual / Mechanical / Magnetic-Powder / Servo According to Configuration |
| Insulation Workflow | Manual or Assisted According to Approved Configuration |
| Mandrel & Fixture | Confirmed from Coil Drawing |
| Power Supply | Confirmed for Destination Factory |
| Automation Boundary | Automatic and Manual Functions Listed in Approved Configuration |
Final spindle capacity, traverse range, tension system, CNC functions and tooling should be confirmed in the approved technical quotation and FAT plan.
The CNC system coordinates winding speed, conductor traverse, turn counting and other programmed parameters according to the coil structure. This provides consistent winding conditions for repeated transformer coil production.
| Item | Buyer Verification |
| Spindle Control | Verify usable speed, direction, acceleration and stopping |
| Wire Traverse | Verify controlled axis, usable range and synchronization |
| Traverse Pitch | Check conductor spacing against the approved coil drawing |
| Turn Counting | Test forward count, reverse count and target-turn behavior |
| Tension Control | Confirm method, adjustment range and conductor compatibility |
| Layer Arrangement | Inspect conductor position and layer transitions |
| Coil Dimensions | Measure ID, OD, finished height and winding length |
| Lead Position | Inspect starting, finishing and tap positions |
| Program Recall | Verify stored parameters and correct recipe retrieval where included |
| Repeated Samples | Compare first, middle and final samples during the agreed FAT run |
| Required Information | What to Provide | Why It Matters |
| Transformer Application | Power / Distribution / Dry-Type / Other | Defines coil and process requirements |
| Conductor | Material, shape and cross-section | Defines guiding, tension and traverse |
| Coil Dimensions | ID, OD and finished height | Defines working and traverse range |
| Winding Load | Coil and mandrel weight | Defines spindle and support requirements |
| Winding Structure | Turns, layers and winding direction | Defines CNC control requirements |
| Tension Requirement | Existing process or required method | Defines tension-system configuration |
| Mandrel | Drawing and interface dimensions | Defines spindle and fixture design |
| Production Requirement | Batch size, changeovers and output target | Defines program and automation requirements |
The machine should be selected according to the actual transformer coil drawing rather than the machine name alone. Final spindle capacity, traverse range, tension system, CNC functions and tooling should be confirmed in the approved technical quotation.


Controlled Winding for Repeat Production
CNC control coordinates selected spindle, traverse and turn-related parameters according to the approved machine configuration. Stored settings can reduce repeated data entry for recurring coil designs, while conductor condition, mandrel alignment, tension setup and the first finished coil should still be verified before repeated production continues.
CNC Conductor Traverse Control
Where CNC conductor traversing is included, the controlled axis moves the guide according to the configured traverse range and pitch. Required settings depend on conductor dimensions, coil geometry and layer structure. During FAT, representative coils should be inspected for conductor spacing, layer transitions and lead positions against the approved drawing.


Configuration Based on Your Coil Drawing
Machine configuration should begin with the finished coil, conductor and mandrel drawings. Provide conductor size, coil ID, OD and height, winding load, turns, layers, winding direction, tension requirement and production target so Fenghua can confirm the spindle, traverse, control functions, tooling and representative FAT scope.
No. CNC conductor traversing should be treated as a confirmed configuration rather than assumed from the CNC machine name. Confirm the controlled axis, traverse range, pitch setting and synchronization method before approval.
Program or recipe storage depends on the selected controller. Confirm storage capacity, retained parameters, program identification, backup method and recall procedure in the technical configuration.
FAT should verify spindle operation, traverse range and pitch, turn counting, program recall, tension method, conductor arrangement, finished coil dimensions, lead positions and repeated samples using the agreed conductor, mandrel and coil drawing.
No. Finished-coil consistency also depends on conductor condition, tension, mandrel alignment, guiding, insulation placement and first-layer setup. Representative samples should be inspected against the approved coil drawing.
Provide the transformer application, conductor material and cross-section, coil ID, OD and finished height, winding load, mandrel drawing, turns, layers, winding direction, tension requirement, required CNC functions, output target and local power supply.








