Core Technical Specifications

1. Matching Drive Voltage Grade: Three-phase 400–480 VAC industrial high voltage
2. Continuous Rated Torque: 12.6 N·m
3. Peak Overload Torque (3s): 37.8 N·m (300% overload capacity)
4. Nominal Rated Speed (-3000 suffix): 3000 RPM
5. Rated Continuous Power Output: 3.96 kW
6. Frame Size Definition (47): 47 series medium standard IEC flange dimension
7. Rotor Length Definition (-L suffix): Long high-torque rotor stack configuration
8. Permanent Magnet Material: Sintered neodymium iron boron high-energy magnet
9. Insulation Class: Class F (155°C maximum winding temperature resistance)
10. Feedback Device: Dual-pole hollow shaft analog resolver standard equipment
11. Mechanical Protection Grade: Motor housing IP65, output shaft double lip seal IP65
12. Environmental Operating Temperature: -20°C ~ +40°C; Max operating altitude 1000 m (6% torque derate per 1000 m elevation)
13. Vibration Standard: DIN EN 60034-14 Class N
14. Physical Dimensions: 47 series standard flange, total motor body length 240 mm
15. Net Motor Weight: 9.7 kg

Function Features

1. Three-phase brushless FOC vector control compatible with all Kollmorgen 400V high voltage servo drives
2. High-energy neodymium rotor delivers ultra-high torque-to-volume ratio for compact machine design
3. Analog resolver feedback fully immune to high EMI interference in welding, inverter factory environments
4. Standard double lip shaft oil seal prevents coolant, dust and liquid ingress in machining workshops
5. Low cogging torque design (<0.8% rated torque) ensures ultra-smooth low-speed rotation without jitter
6. Optional spring-applied power-off holding brake for vertical axis load locking safety
7. Uniform stator winding thermal distribution eliminates local winding overheating hot spots

Performance Highlights

1. 3000 RPM continuous rated speed sustains long-duration high-speed production cycles without torque derating
2. Class F high-temperature insulation allows full-load operation in 40°C maximum ambient factory conditions
3. Long rotor stack L variant provides 40% higher continuous torque than short S frame variant same flange size
4. Wide constant torque operating range from stall 0 RPM to full rated 3000 RPM speed

Material & Structural Characteristics

1. Motor stator housing: Die-cast aluminum alloy with external longitudinal cooling ribs
2. Rotor core: Stacked grain-oriented silicon steel sheet bonded with high-temperature epoxy resin
3. Permanent magnet: Surface-mounted sintered NdFeB magnet with anti-demagnetization passivation coating
4. Output shaft: High-strength quenched alloy steel, corrosion resistant surface treatment
5. Bearing assembly: Sealed lifetime grease lubricated double ball bearing unit
6. Terminal connector housing: Flame-retardant nylon plastic with IP65 compression cable gland sealing

Working Principle

Applicable Industries

Installation Requirements

1. Horizontal or vertical flange mounting permitted; vertical shaft downward installation requires factory drain plug fitting
2. Mounting flange surface flatness tolerance ≤0.02 mm per 100 mm area
3. Motor-load coupling radial concentricity runout tolerance ≤0.05 mm
4. Shielded servo power and resolver feedback cables installed with fully tightened IP65 cable glands
5. Motor housing PE ground terminal connected to machine frame with minimum 4 mm² copper ground wire

Operation Precautions

1. Do not exceed 3000 RPM maximum rated operating speed to avoid premature bearing fatigue failure
2. Continuous stall operation limited to maximum 10 seconds to prevent stator winding thermal burnout
3. Prevent direct coolant liquid splash onto motor rear terminal housing in machining workshop environments
4. Brake-equipped motor variants require dedicated independent brake power supply circuit per drive operation manual
5. Annual bearing grease maintenance inspection mandatory for 24-hour non-stop continuous production equipment