Automatic Stator Slot Insulation Paper Inserting Machine100-200mm I.D. and ≤300mm O.D. with <30 Minutes Tooling Changeover, Generators & Home Appliance Motors
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Automatic Stator Slot Insulation Paper Inserting Machine100-200mm I.D. and ≤300mm O.D. with <30 Minutes Tooling Changeover, Generators & Home Appliance Motors
Product Summary
Automatic Stator Slot Insulation Paper Inserting Machine100-200mm I.D. and ≤300mm O.D. with This machine is ideally suited for the production of single‑phase and three‑phase induction motors found in industrial equipment, water pumps, compressors, and fans. It is also widely used in manufacturing ...
Product Custom Attributes
Basic Properties
Place of Origin:
China
Brand Name:
SMT
Certification:
ISOSGS Audit
Model Number:
CW3.0
Trading Properties
Minimum Order Quantity:
1 SET
Price:
Negotiable
Packaging Details:
Plywood Box With sealing
Delivery Time:
8-10 weeks
Payment Terms:
L/C,T/T
Supply Ability:
7-11 weeks
Product Description
This automatic slot insulation paper inserting machine is specifically designed for stator slot insulation of single-phasemotors, three-phase induction motors, gasoline generators, washing machine motors, fan motors, and water pump motors.Accommodating stator outer diameter up to 190mm, inner diameter 50–120mm, and stack height 20–160mm, it supports DMD, Nomex, and polyester film insulation materials. With full-cycle automation covering paper feeding, edge folding, forming, cutting, and insertion, and an average cycle time of approximately 0.8 seconds per slot, this machine reduces manual labor, enhances consistency, and significantly improves the first-pass yield of slot insulation. Its straightforward mold changeover mechanism enables retooling in around 30 minutes, making it an ideal solution for small-to-medium batch production environments where frequent specification changes are required.
Main Technical Data
| Parameter | Value |
|---|---|
| Model | SMT-CW3.0 |
| Stator OD | 170-260mm |
| Stator ID | 100-200mm |
| Stack Height | 90-220mm |
| Paper Thickness | ≤0.38mm |
| Cuff Height | 3~7.5mm |
| Cycle time | ≈120pc/min |
| Power supply | 6Kw 3 phases 380V/50Hz |
| Weight | 1050kg |
| Dimension | (L)2350×(W)1100×(H)1500mm |
Cause
In motor manufacturing, the insulation between stator windings and the laminated silicon steel core is critical to preventing electrical leakage, short circuits, and premature failure. Historically, many factories have relied on manual insertion of slot insulation paper — a process that is not only labor-intensive and inefficient but also highly inconsistent. Operators manually cut, fold, and insert insulation paper into each stator slot, leading to variable insertion depths, wrinkled or misaligned insulation, and high rejection rates. As production volumes grow and quality standards tighten, manual methods become a bottleneck, limiting throughput and increasing per-unit labor costs. Furthermore, human error often results in damaged insulation paper edges or deformed stator teeth, compromising both product reliability and safety. The need for a fast, repeatable, and cost-effective automated solution has never been more urgent for motor manufacturers seeking to scale operations while maintaining consistent quality.
Solution
Our automatic stator slot insulation paper inserting machine addresses these challenges with an integrated electro-pneumatic-servo system that fully automates the entire paper insertion sequence. The machine continuously feeds insulation paper from a roll, precisely cuts it to the required length with burr‑free edges, folds the edges to the specified cuff height, and pushes the formed insulation sleeve into each stator slot — all in less than one second per slot. The entire process is governed by a programmable logic controller and touchscreen interface, allowing operators to quickly set parameters such as stack height, cuff height, and slot count. A complete set of molds can be replaced in about 30 minutes, enabling efficient production switching across different stator sizes. Built‑in paper‑jam detection triggers automatic machine stoppage, preventing material waste and equipment damage. The first-pass yield for slot insulation exceeds 99%, and post‑repair yield reaches 99.9%, ensuring reliable, repeatable results across high-volume runs.
Application
This machine is ideally suited for the production of single‑phase and three‑phase induction motors found in industrial equipment, water pumps, compressors, and fans. It is also widely used in manufacturing stators for gasoline generators, alternators, washing machine motors, air conditioner fan motors, and household appliance motors. Any manufacturing facility that produces mid‑range electric motors with stator OD up to 190mm will benefit from the machine‘s flexibility, speed, and reliability.
How It Works
The automatic insulation paper inserting machine operates through a synchronized five‑step sequence.
Step 1 — Paper Feeding: The machine continuously draws insulation paper from a supply roll and advances it into the forming section.
Step 2 — Edge Folding: The paper passes through a folding unit, where both edges are pre‑folded to the specified cuff height (2–4 mm or 4–7 mm).
Step 3 — Cutting and Forming: The paper is cut precisely to length and simultaneously formed into an O‑shaped,
C‑shaped, or B‑shaped sleeve, depending on the slot geometry.
Step 4 — Indexing: An indexing mechanism rotates the stator workpiece, aligning each slot with the insertion tool.
Step 5 — Insertion: A pusher mechanism drives the formed insulation sleeve into the stator slot
The process repeats automatically until all slots are completed, after which the operator unloads the finished stator
and loads the next workpiece.
How to Choose
Stator Size Compatibility: Verify that your stator’s outer diameter (≤190 mm), inner diameter (50–120 mm), and stack height (20–160 mm) fall within the machine’s operating range. If you handle larger stators (OD ≤200 mm / ID 70–140 mm), refer to our industrial‑grade model in the second article.
Slot Count and Configuration: Confirm your stator’s slot count (8–36 slots) and slot geometry (open or semi‑closed slots). For stators with non‑uniform slot distribution requiring skip‑slot insertion, ensure the machine supports programmable skip‑feed functionality.
Insulation Material Type: The machine supports DMD, polyester film, and Nomex‑based papers up to 0.35mm thickness. Evaluate your insulation material’s flexibility and thickness — thicker or stiffer materials may require slower cycle times or special tooling adjustments.
Production Volume and Changeover Frequency: For multi‑product lines, the ≈30‑minute mold changeover time is critical to minimizing downtime. Assess your average batch size and changeover frequency to ensure this meets your operational throughput targets.
FAQ
Q1: How long does it take to change over between different stator sizes?
A: A complete mold set changeover takes approximately 30 minutes for trained operators. The machine features text‑display parameter settings, allowing rapid adjustment of stack height, cuff height, and slot configuration.
Q2: Does this machine support skip‑slot insertion?
A: Yes. The machine is equipped with an empty‑cycle device that can skip specific slots, enabling production of stators with irregular slot distributions or partial winding designs.
Q3: What insulation paper materials are compatible with this machine?
A: The machine accommodates DMD, polyester film, and Nomex‑based insulation papers up to 0.35mm in thickness. Standard roll width is fixed, but custom widths are available upon request.
Production Line Solutions
SMT offers comprehensive technical consulting and turn-key project services for AC motor, DC motor, and BLDC motor manufacturing. Our services include motor cost evaluation, manufacturing know-how, staff training, and complete project implementation. Our solutions serve various applications including new energy automobile motors, servo motors, generators, three-phase motors, pump motors, compressor motors, household appliance motors, and other induction motors. We specialize in stator and rotor core assembly, slot insulation, automated winding, inserting, fusing, and resin impregnation technologies for diverse stator sizes and slot configurations.
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