Servo Motors (SGM7J)

Description

1. Product Overview
The SGM7J is a high-performance, AC servo motor engineered for precision motion control in automated industrial environments. Primarily used in robotics, CNC machinery, and high-speed pick-and-place systems, this motor delivers exceptional torque density and rapid acceleration. Its strategic value lies in reducing cycle times while maintaining micron-level positioning accuracy—directly addressing Industry 4.0’s demand for higher throughput without compromising reliability.

2. Key Specifications & Technical Characteristics

• Material composition: High-grade neodymium magnet rotor, silicon steel stator laminations, and heat-resistant Class F insulation (155°C)

• Encoder type: 24-bit absolute serial encoder (multi-turn) – eliminates need for battery backup

• Physical characteristics: Compact IP67-rated housing (excluding shaft), natural cooling, mass: 1.8–8.5 kg depending on frame size

• Rated output range: 100 W to 750 W (SGM7J series)

• Rated torque: 0.318 – 2.39 N·m; instantaneous peak torque up to 300% of rated

• Rated speed: 3,000 min⁻¹ (standard); 6,000 min⁻¹ optional

• Packaging: Industrial-grade anti-static + moisture-barrier sealed carton; individual motor with connector kit

• Shelf life: 60 months when stored per IEC 60068-2-38 (humidity/temp controlled)

3. Core Industrial Applications

• Primary industries: Semiconductor fabrication, medical device assembly, packaging automation, precision laser cutting

• Specific use cases:

  • Surface-mount technology (SMT) pick-and-place: 24-bit encoder enables component placement at 0.02 mm repeatability

  • Collaborative robot joints: Low cogging torque ensures smooth human-safe operation at low speeds

  • High-speed labeling systems: Achieves 200 cycles/min without overheating due to optimized iron-core design

• Performance advantage vs. alternatives: Delivers 20% higher continuous torque per frame size than comparable brushless DC motors; 40% lower rotor inertia than SGM7A series, enabling faster settling time (≤5 ms)

4. Competitive Advantages

• Quality consistency: 0.1% defect rate over 12 million cumulative units; each motor undergoes 100% back-EMF and vibration signature testing

• Supply reliability: Dual-source manufacturing (Japan & Vietnam); 98% on-time delivery for orders up to 5,000 units/month

• Logistics capability: Regional hubs in Rotterdam, Singapore, and Chicago provide 48-hour emergency dispatch

• Price competitiveness: Tier-1 performance at Tier-2 pricing through optimized rare-earth magnet sourcing contracts

• Sustainability: RoHS-compliant (no cadmium or hexavalent chromium); 94% recyclable components by weight

• Technical support: Free access to sizing software (SigmaSelect+) and 24/7 application engineering hotline

5. Commercial & Supply Information

• Minimum order quantity (MOQ): BULK 20MT (approx. 3,500 units based on 5.7 kg avg. unit weight including packaging)

• Loading capacity (MT per container):

  • 20-foot dry container: 18 MT net (max 20 MT) – approx. 3,150 units

  • 40-foot high-cube container: 26 MT net – approx. 4,560 units

  • Note: Mixed pallets with other SGM7 series models available upon request