Technical & Performance Specifications

• Rated Stator Winding Operating Voltage: 230 VAC Single/Three Phase
• Continuous Stall Static Torque: 3.6 N·m
• Peak Overload Torque Output: 10.8 N·m (300% of continuous stall torque, sustainable maximum 5 seconds)
• Nominal Rated Continuous Operating Speed: 3200 RPM
• Maximum Mechanical Safe Rotational Speed: 6500 RPM
• Rotor Moment of Inertia: 0.00062 kg·m² (ultra-low inertia classification)
• Winding Thermal Insulation Class: Class F (155°C maximum sustained winding withstand temperature)
• Feedback Device (31 suffix): Multi-pole analog sine/cosine resolver, no optical components, vibration-resistant construction
• Output Shaft Configuration: Standard smooth cylindrical unkeyed solid steel output shaft
• Built-In Thermal Protection Sensor: PTC positive temperature coefficient thermistor embedded within stator winding
• Winding Thermal Time Constant: 28 minutes
• Housing Protection Rating: IP65 front shaft side, IP54 rear resolver feedback housing
• Complete Motor Net Weight: 5.4 kg

Material Composition

1. Stator Outer Housing: Die-cast A380 aluminum alloy with matte black hard anodized anti-corrosion coating, integrated external heat dissipation fin array
2. Rotor Lamination Core: Ultra-thin cold-rolled oriented silicon steel stacked core bonded with high-temperature epoxy adhesive
3. Permanent Magnet Assembly: High-energy NdFeB rare-earth magnets surface-mounted on rotor outer circumference, fixed with high-strength temperature-resistant adhesive
4. Bearing Pair Assembly: Double heavy-duty sealed radial precision ball bearings filled with high-temperature lithium complex grease lubricant
5. Resolver Feedback Unit: High-temperature insulated copper wire wound electromagnetic resolver stator and rotor assembly
6. Output Shaft Material: Medium carbon quenched and tempered steel with hard chrome plating anti-wear surface finish
7. Terminal Connector Housing: PA66 flame-retardant insulated nickel-plated D-Sub industrial connector with silicone environmental sealing gasket

Structural Features

1. Low-inertia short rotor stack design optimized for sub-10ms ultra-fast full-speed acceleration response
2. External machined fin heat dissipation array integrated onto aluminum stator housing to accelerate continuous full-load heat exchange
3. Rear-side fully isolated resolver feedback compartment physically separated from power stator windings via metal shielding partition to eliminate electromagnetic signal interference
4. Standard NEMA 20 IEC compliant mounting flange with pre-drilled uniform bolt hole pattern for universal mechanical drop-in replacement compatibility
5. Embedded PTC thermistor winding temperature sensor with dedicated independent signal wiring pin for servo drive overheat interlock protection
6. Dual-sealed bearing assembly design extending bearing lubrication maintenance interval to 20,000 continuous operating hours
7. Fully sealed stator winding assembly manufactured via Vacuum Pressure Impregnation (VPI) process eliminating inter-turn short circuit failure risk under sustained high-load operation

Working Principle

Function Features

1. Ultra-low rotor inertia delivers rapid acceleration/deceleration performance for high-speed pick-and-place and short-stroke positioning axes
2. Analog resolver feedback hardware fully immune to industrial dust, heavy vibration and wide extreme temperature variation environments compared to optical encoders
3. Class F high-temperature insulation system enables sustained 100% rated torque output at elevated ambient operating temperatures up to 40°C
4. VPI vacuum impregnation winding process reduces stator winding heat generation and extends motor continuous full-load service life
5. Integrated PTC thermal protection interlock circuit prevents permanent stator winding burnout during prolonged overload operating cycles
6. IP65 front shaft side sealing construction resists low-pressure water jet spray and fine industrial dust ingress for harsh workshop deployment
7. Standard NEMA mounting flange enables direct mechanical replacement of all legacy Goldline B 20-frame motor models without mechanical fixture modification

Advantage Highlights

1. Low-inertia rotor architecture achieves industry-leading dynamic response, reducing equipment cycle time by 25% for high-speed automation production lines
2. Resolver feedback design eliminates optical encoder light source aging and contamination failure points, delivering 10-year maintenance-free feedback service life under heavy vibration operating conditions
3. Die-cast aluminum finned housing accelerates passive heat dissipation, supporting 24-hour continuous full-load operation without forced external cooling hardware
4. Universal NEMA standard mounting dimensions simplify mechanical design and spare parts inventory management for OEM equipment manufacturers
5. UL, cUL, CE, RoHS global safety and environmental compliance certification for worldwide machinery integration
6. Minimal cogging torque performance (≤1.2% rated continuous torque) ensures zero-jitter ultra-smooth low-speed positioning motion

Applicable Industries

Installation Requirements

1. All mounting spatial orientations fully permitted (horizontal, vertical shaft-up, vertical shaft-down); vertical downward shaft mounting requires installation of factory rear drain hole plug to prevent moisture condensation ingress into resolver compartment
2. Mounting flange bolt specification: M8 Grade 8.8 hex socket head cap screws tightened to uniform 24 N·m torque value, install spring lock washers under each bolt head for anti-loosening vibration resistance
3. Shaft coupling alignment tolerance: Radial shaft runout ≤0.03 mm, axial misalignment ≤0.05 mm to prevent accelerated bearing wear and premature bearing failure
4. Wiring separation regulation: Motor power cable and resolver feedback cable maintain minimum 20 cm physical separation distance; unavoidable cross routing must adopt strict 90-degree perpendicular crossing only
5. Heat dissipation clearance requirement: Minimum 70 mm unobstructed airflow space surrounding motor housing external heat dissipation fin array
6. Motor housing protective earth terminal must connect to control cabinet star earth grid via minimum 4 mm² fully shielded copper earth conductor

Operation & Maintenance Precautions

1. Ambient operating temperature range strictly limited to -5°C ~ +40°C; ambient temperature exceeding 40°C requires linear 6% continuous torque derate per 10°C temperature rise
2. Maximum rated operating altitude 1000 m above sea level; installation altitude exceeding 1000 m elevation requires linear 6% continuous torque derate per 1000 m altitude increase
3. Ambient environment relative humidity limited to maximum 85% non-condensing; prohibit motor deployment inside enclosures containing corrosive gas, oil mist or conductive metal dust atmospheres
4. Strictly avoid applying direct radial impact load to output solid shaft during mechanical coupling assembly installation; only flexible soft-jaw shaft couplings are permitted for load connection
5. Conduct bearing grease replenishment maintenance operation every 20,000 continuous operating hours via dedicated rear grease fitting port on motor resolver housing
6. Cut all servo drive mains AC power supply and wait minimum 5 minutes for DC bus capacitor discharge before disconnecting motor power or resolver feedback D-Sub connectors to eliminate electrostatic discharge damage to resolver winding circuits