Product Overview
Core Application & Design
This PMAC (Permanent Magnet AC) servo motor is designed for sewing machines, with a maximum power of 5.5KW and a rated speed of 3000rpm. It also offers a 1.5KW rated power option (1500rpm rated speed) to fit different sewing machine models—from industrial heavy-duty sewing machines to medium-duty textile equipment. Its closed-loop control ensures precise speed and position control, solving the step-out issue of stepper motors and improving sewing accuracy.
Key Product Traits
It combines high speed, strong overload capacity, and IP65 protection, making it durable in textile factory environments (resistant to dust and moderate moisture). It also suits other industrial applications like packaging machinery, robotic arms, and automation lines that require high reliability.
Product Advantages
• High Precision Control: Adopts closed-loop control for position, speed, and torque, eliminating stepper motor step-out and ensuring consistent sewing stitch density and fabric feeding accuracy.
• Excellent Speed Performance: Rated speeds range from 1500rpm to 3000rpm, with smooth speed adjustment to match different sewing materials (e.g., cotton, leather) and stitch types.
• Strong Overload Capacity: Can withstand up to three times the rated torque, making it suitable for instantaneous load fluctuations (e.g., thick fabric layers) and quick start/stop scenarios in sewing operations.
• Durable & Protective: Features F-class insulation (180°C) and IP65 safety class, resisting dust, oil, and moderate water splashes—extending service life in textile factory conditions.
• Low Energy Consumption: PMAC technology minimizes energy loss, reducing operating costs for long-term continuous sewing operations.
Technical Specifications
Basic Electrical & Mechanical Parameters
• Power Options: 1.5KW (rated) and 5.5KW (maximum), with the 1.5KW model as a common configuration for standard sewing machines.
• Voltage: 220V rated voltage, compatible with industrial single-phase AC power supplies.
• Speed: 1500rpm (rated for 1.5KW) and 3000rpm (maximum for 5.5KW), with adjustable speed via servo drivers.
• Current: 6.0A rated current for the 1.5KW model, ensuring stable power output without overheating.
Torque & Dynamic Performance
• Rated Torque: Calculated based on power and speed (e.g., the 1.5KW/1500rpm model delivers consistent torque for smooth sewing).
• Peak Torque: 25N.m for the 1.5KW model, supporting overloads during thick fabric sewing.
• Holding Torque: 10N.m, keeping the sewing machine needle or feed dog in position when stopped, preventing fabric misalignment.
Additional Technical Details
• Voltage Constant: 103V/1000r/min, ensuring stable speed output under load changes.
• Torque Coefficient: 1.67N.m/A, maintaining consistent torque relative to current.
• Rotor Inertia: 1.94×10⁻⊃3; Kg.m², enabling quick acceleration and deceleration for responsive sewing operations.
• Line-Line Resistance & Inductance: 1.5Ω resistance and 4.37mH inductance, ensuring efficient electrical transmission.
• Mechanical Time Constant: 2.91Ms, minimizing delay in speed and torque adjustments.
• Encoder: 2500PPR (pulses per revolution) encoder, providing high-precision position feedback for closed-loop control.
• Weight: 10.2Kg for the 1.5KW model, ensuring stable mounting on sewing machine frames.
Why Choose Us
• Industry-Specific Design: We tailor the servo motor to sewing machine needs—optimizing speed, torque, and protection for textile applications, unlike generic servo motors.
• Proven Manufacturing Quality: Our motors meet international standards, with strict testing for insulation, torque, and environmental resistance—trusted by textile factories globally.
• Complete Solution: We offer matching servo drivers (e.g., 220V AC servo drives) and technical guidance for integration, ensuring the motor works seamlessly with your sewing machine control system.
• After-Sales Guarantee: We provide maintenance support and spare parts supply, minimizing downtime for your sewing production lines.
FAQ
Q1: Is this servo motor only for sewing machines?
A1: No. While it is designed for sewing machines, its high precision and overload capacity also make it suitable for packaging machinery, robotic arms, automation lines, and other industrial equipment.
Q2: Are you a factory or a trading company?
A2: We are an industry-trade integrated company in Ningbo City, Zhejiang Province, with R&D, manufacturing, and sales capabilities for servo motors and drives.
Q3: How to confirm if the motor fits my sewing machine?
A3: Please inform us of your sewing machine’s power requirements, speed range, and mounting dimensions. We will recommend the appropriate model (1.5KW/1500rpm or 5.5KW/3000rpm) and provide installation size charts for verification.
Q4: What is the delivery time for this servo motor?
A4: Stock samples are shipped within 7 working days. Bulk orders (customized or standard) take about 30 days, depending on quantity.
Q5: What if the motor has quality issues after purchase?
A5: Contact our after-sales team with details of the issue. We will arrange inspection, repair, or replacement based on the warranty terms (please ask for specific warranty information when inquiring).
