Technical Specifications

1. Mechanical Core Parameters

• Frame Size: AKM72 (220 mm square mounting flange)
• Rotor Inertia: Ultra-High Inertia Grade for heavy load stable positioning
• Output Shaft: k6 tolerance cylindrical shaft with DIN standard keyway, double lip shaft seal IP67
• Built-in Holding Brake: 24 VDC electromagnetic power-off brake, static holding torque matching motor continuous stall torque
• Bearing Design: Heavy-duty double-row roller front bearing for large radial and axial load capacity

2. Electrical Performance Specs

• Continuous Stall Torque: 53.0 N·m
• Peak Torque (2-second sustainable): 143 N·m
• Rated Operating Speed: 2000 RPM
• Max Mechanical Safe Speed: 4500 RPM
• Winding Matching Bus Voltage: 640 VDC (480 VAC three-phase drive input)
• Insulation Grade: Class F, thermal withstand temperature 155°C

3. Feedback System (ANCN Code)

• EnDat 2.2 Multi-turn Absolute Encoder, 24-bit high resolution position sampling

4. Environmental Rating

• Housing IP65, double shaft seal IP67; rear encoder compartment full sealed O-ring protection

5. Thermal Monitoring

• Dual embedded PTC thermal sensors for redundant winding overheat protection

Functional Features

1. Extra long stator stack rare-earth magnet rotor design for maximum continuous torque output
2. Integrated power-off holding brake eliminates additional mechanical locking component for vertical heavy load axes
3. EnDat 2.2 absolute encoder supports multi-turn position storage, zero homing requirement after power cycle
4. Double shaft lip seal structure prevents cutting fluid, coolant penetration into bearing chamber
5. Redundant dual PTC temperature sensors improve overheat protection reliability for 24/7 continuous production
6. High load capacity front roller bearing tolerates large radial offset load from heavy mechanical transmission

Performance Highlights

1. Industry-leading torque-to-volume ratio, delivers ultra-high continuous torque under limited installation space
2. 300% short-time overload peak torque capacity meets heavy load rapid acceleration demand
3. Full IP67 shaft sealing suitable for coolant-rich metal processing workshop environment
4. Built-in brake maintains static positioning without external hydraulic/air cylinder locking, reducing auxiliary system complexity
5. EnDat digital encoder strong anti-electromagnetic interference performance in high-power frequency converter workshop

Material Composition

• Motor Main Housing: Thick-wall cast aluminum alloy with dense external cooling fin array
• Stator Silicon Steel Core: Low-loss oriented silicon steel sheet, stacked integral structure
• Rotor Permanent Magnet: High coercivity sintered neodymium iron boron magnet with anti-demagnetization coating
• Holding Brake Component: Powder metallurgy friction brake disc, copper electromagnetic coil
• Output Shaft: Alloy steel quenched hardening, surface anti-corrosion passivation treatment
• Encoder Housing: Sealed aluminum alloy rear end cap, fluorine rubber waterproof O-ring

Structural Characteristics

1. Oversized cast aluminum cooling housing with circumferential and axial compound heat dissipation fins
2. Front end double-row roller bearing assembly to withstand heavy radial and axial mechanical load
3. Intermediate integrated holding brake chamber between stator and rear encoder compartment
4. Rear dual-cable outlet design: separate power cable connector and encoder signal connector
5. Large-size standard IM B5 circular flange with 8 evenly distributed mounting bolt holes for heavy mechanical coupling

Working Principle

Applicable Industries

Installation Requirements

1. Horizontal IM B5 flange mounting recommended; vertical installation mandatory connect brake control signal to drive STO safety circuit
2. Shaft coupling coaxiality error strictly controlled below 0.015 mm to avoid roller bearing premature failure
3. Rear cable outlet reserve bending radius ≥ 12 times cable outer diameter to prevent connector wire fatigue fracture
4. Operating ambient temperature range: -5°C ~ +40°C; ambient temperature exceeding 40°C implement 5% torque derate per 1K temperature rise
5. Cabinet forced cooling air flow must avoid direct impact on motor encoder rear end cap to prevent condensation

Usage Precautions

1. Do not energize motor drive while manually rotating output shaft; EnDat encoder signal damage will occur
2. Built-in holding brake only for static positioning locking, forbidden to use as dynamic deceleration braking device
3. Clean double shaft lip seal regularly every 6 months if deployed in coolant splashing workshop to prevent seal aging leakage
4. Long-term continuous operation at peak torque will accelerate permanent magnet demagnetization, limit overload duration strictly within 2 seconds per cycle
5. Do not wash motor rear encoder end cap with high-pressure water gun; IP65 housing cannot resist direct high-pressure water impact