Precision BLDC Motor Inner Stator Insulation Paper Inserting Machine for ID ≥30mm / OD ≤135mm — For Brushless Motors, Stepper Motors & Servo Motors
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Precision BLDC Motor Inner Stator Insulation Paper Inserting Machine for ID ≥30mm / OD ≤135mm — For Brushless Motors, Stepper Motors & Servo Motors
Product Summary
Precision BLDC Motor Inner Stator Insulation Paper Inserting Machine for ID ≥30mm / OD ≤135mm — For Brushless Motors, Stepper Motors & Servo Motors Specifically designed for inner stator insulation paper insertion in BLDC motors, stepper motors, and servo motors, this precision machine handles ...
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
Specifically designed for inner stator insulation paper insertion in BLDC motors, stepper motors, and servo motors, this precision machine handles stator outer diameters up to 135mm, inner diameters from 30mm, and stack heights ranging from 10 to 100mm. With a rapid cycle time of ≤1 second per slot, it delivers high‑throughput production while maintaining exceptional insertion accuracy. A unique chamfering function at both ends of the insulation paper effectively eliminates interference between the paper and subsequent winding operations, significantly reducing rejection rates. The machine integrates mechanical transmission, servo, and pneumatic systems into a compact footprint, combining high automation with user‑friendly operation. Touchscreen‑based parameter settings enable quick adjustments, while built‑in paper‑jam detection ensures uninterrupted production flow. This model is ideal for manufacturers of precision motion control components, automotive BLDC motors, and high‑efficiency appliance motors.
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
BLDC motors, stepper motors, and servo motors are increasingly used in applications where precision, efficiency, and reliability are paramount — including electric vehicles, industrial automation, robotics, medical devices, and high‑end home appliances. These motors typically feature inner stator designs with narrow slot openings and tight geometric tolerances. Inserting insulation paper into inner stators is particularly challenging: the insertion tool must work from the inside out, accessing each slot through a limited opening while avoiding damage to the delicate silicon steel laminations. Manual insertion in this context is not only inefficient but also error‑prone — a slight misalignment can cause the insulation paper to protrude into the winding area, where it interferes with coil placement, leading to wire breaks, shorts, or reduced slot fill. Moreover, the high slot counts (often 12–48 slots) and thin insulation papers (0.15–0.3 mm) used in these motors demand exceptional consistency that manual processes cannot provide. As BLDC motor production scales globally, manufacturers urgently need automation solutions designed specifically for the unique requirements of inner stator insulation.
Solution
Our BLDC inner stator insulation paper inserting machine is purpose‑built to overcome the unique challenges of inner stator production. Unlike general‑purpose machines that insert insulation into the outer diameter, this model is configured for inside‑out insertion, with the stator workpiece clamped securely while the insertion tool accesses each slot from the interior. A standout feature is the chamfering mechanism, which cuts angled corners at both ends of the insulation paper after insertion. This chamfer eliminates sharp paper edges that would otherwise interfere with winding needles or coils during subsequent coil insertion, dramatically improving the first‑pass qualification rate. The machine uses a servo‑controlled paper feeding system for precise length control, a pneumatic forming unit to shape the paper into O‑type, C‑type, or B‑type configurations, and a high‑speed indexing system to cycle through all slots efficiently. The entire process — from material positioning and pressing to paper feeding, forming, and pushing — is fully automated. Operators can set all required parameters via the human‑machine interface, and the machine automatically executes the insertion sequence with minimal intervention. Paper‑jam detection and automatic shutdown protect both the machine and the workpiece from damage.
Application
This machine is specifically designed for BLDC motor stators used in electric vehicles, e‑bikes, servo drives, CNC machinery, robotics actuators, stepper motor assemblies, and high‑efficiency HVAC fan motors. It is also well‑suited for stator production in medical device motors, precision instruments, and drone propulsion systems where inner stator geometries and tight tolerances are standard. Any manufacturer producing inner stator BLDC motors with outer diameters up to 135mm will benefit from this machine’s specialized configuration and chamfering capability.
How It Works
The BLDC inner stator insertion process differs fundamentally from outer stator machines.
Step 1 — Workpiece Mounting: The inner stator is loaded onto a clamping fixture that secures it from the outer diameter, leaving the interior accessible for insertion tools.
Step 2 — Paper Feeding:Insulation paper is drawn from the roll and advanced into the forming section.
Step 3 — Forming:The paper is formed into an O‑shaped, C‑shaped, or B‑shaped sleeve that matches the inner stator‘s slot profile.
Step 4 — Chamfering: After formation, the chamfering mechanism cuts angled corners at both ends of the insulation sleeve — a critical feature that prevents the paper from interfering with winding operations.
Step 5 — Indexing and Insertion: The indexing system rotates the inner stator to align each slot with the insertion tool. A pusher mechanism drives the formed sleeve into the slot from the inside.
Step 6 — Completion: The sequence repeats until all slots are insulated, at which point the machine signals the operator to unload the finished stator and load the next workpiece.
How to Choose
Inner Stator Configuration: Verify that your stator‘s dimensions fall within the machine’s range — outer diameter ≤135 mm, inner diameter ≥30 mm, stack height 10–100 mm. For stators at the upper end of the stack height range, ensure the machine‘s insertion stroke is adequate for full‑depth coverage.
Insulation Paper Type and Thickness: This machine supports DMD, polyester film, and Nomex‑based papers up to 0.3 mm thickness (0.15–0.35 mm optional). Thicker papers generally require higher insertion forces — consult with us to ensure compatibility with your specific material selection.
Chamfering Requirement: If your production involves automated coil winding where insulation paper edges could interfere with winding needles, the chamfering function is strongly recommended. This feature is standard on this model but may not be available on economy versions.
Slot Count and Speed Requirements: For high‑volume applications with slot counts of 12–48, the ≤1‑second cycle time delivers throughput of 3,600–14,400 insertions per hour. Calculate your required daily output to confirm this model meets your production targets.
FAQ
Q1: What makes the BLDC inner stator insertion machine different from standard models?
A: Unlike standard machines that insert insulation from the outside, this model is configured for inside‑out insertion specifically for inner stators. It also includes a chamfering function that cuts angles at both ends of the paper, preventing interference with winding needles — a critical feature for BLDC motor production.
Q2: Can this machine handle stators with different slot geometries?
A: Yes. The forming mould is adjustable to accommodate different slot sizes and shapes, including O‑type, C‑type, B‑type, and S‑type configurations. Complete changeover with new moulds takes approximately 30 minutes.
Q3: What is the typical first‑pass yield for BLDC stators processed on this machine?
A: The first‑pass yield for slot insulation exceeds 99% under normal operating conditions. The chamfering function significantly reduces failures caused by paper‑winding interference, which is a common defect in manual insertion processes.
Q4: What insulation materials does this machine support?
A: The machine is compatible with DMD (Class B/F), polyester film (Class E), NMN, and Nomex/Mylar/Nomex composite papers, with thickness ranging from 0.15 mm to 0.35 mm. Custom material feeding configurations 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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