Technical & Performance Specifications

• Stator Winding Voltage Rating: 480 VAC three-phase industrial high-voltage
• Continuous Rated Torque: 42 Nm
• Peak Overload Torque: 126 Nm (300% short-time overload capacity)
• Max Rated Rotational Speed: 4500 RPM
• Frame Size: AKM 65 large frame, flange dimension 260 mm square
• Feedback Configuration (ACC2R Suffix): 27-bit EnDat 2.2 absolute rotary encoder, single-turn multi-turn position tracking
• Shaft & Seal Option: Smooth solid output shaft, double-lip IP65 shaft sealing ring
• Insulation Grade: Class F (155°C maximum winding operating temperature)
• Housing Protection Class: IP65, shaft output end IP67
• Axial Allowable Shaft Load: 1200 N continuous static load
• Radial Allowable Shaft Load: 1800 N continuous static load
• Operating Ambient Temperature: -5°C ~ +40°C full rated torque output

Functional Features

1. High-grade sintered neodymium iron boron permanent magnet rotor generates ultra-high torque density, minimal cogging torque for ultra-smooth rotation
2. 27-bit absolute EnDat encoder stores multi-turn position data without external backup battery, retains zero point after full power cut-off
3. Double-lip shaft sealing structure blocks coolant mist, metal dust and light water splashing in metal processing environments
4. Class F high-temperature insulation allows continuous full-load operation without winding thermal degradation
5. Standard keyway output shaft for direct coupling with gear reducers, ball screws and rotary fixture loads
6. Compatible with all Kollmorgen AKD-P high-voltage servo drives for automatic motor identification and one-click auto-tuning

Material Composition

• Motor housing: Thick die-cast aluminum alloy with radial cooling fin structure, black anti-corrosion anodic coating
• Rotor assembly: Laminated silicon steel core embedded with sintered NdFeB rare-earth permanent magnets
• Stator winding: High-temperature Class F enameled copper wire, vacuum epoxy impregnation insulation
• Output shaft: 4340 quenched alloy steel shaft with surface wear-resistant hardening treatment
• Bearing set: Double heavy-duty sealed angular contact ball bearings with high-temperature synthetic grease
• Feedback unit: Hermetically sealed EnDat absolute encoder with metal alloy protective housing

Structural Characteristics

1. Large square 260 mm front flange mounting design with 8 standard fixing bolt holes for heavy-load fixture installation
2. Full radial cooling fin housing for passive convection heat dissipation during continuous high-torque operation
3. Rear-end fully enclosed encoder compartment isolated from motor main cavity to prevent metal chip contamination
4. Separate quick-disconnect connectors for motor three-phase power cable and encoder feedback cable
5. Double-lip fluorine rubber shaft sealing ring installed at front shaft output end for enhanced environmental protection

Working Principle

1. AKD-P high-voltage servo drive outputs three-phase sinusoidal variable-frequency AC current to motor stator windings
2. Rotating electromagnetic field generated by stator windings interacts with rotor NdFeB permanent magnet field to produce continuous high-torque rotational output
3. Rear-end 27-bit absolute EnDat encoder captures real-time rotor absolute position and rotational velocity data, transmits digital feedback signal to servo drive
4. Drive executes triple closed-loop torque/velocity/position control algorithms using encoder feedback data, dynamically adjusts output current to maintain precise motion positioning and rapid dynamic response

Advantage Highlights

1. 42 Nm continuous rated torque meets heavy-load industrial equipment continuous drive demand
2. 27-bit absolute multi-turn encoder eliminates homing procedure after machine power restart, reduces production cycle downtime
3. Ultra-low cogging torque delivers vibration-free smooth rotation for precision cutting and high-speed synchronous equipment
4. IP65 full housing + IP67 shaft sealing adapts to metal cutting, coolant spray heavy industrial environments
5. Class F high-temperature insulation allows 100% continuous load operation under 40°C ambient temperature
6. Native plug-and-play compatibility with AKD-P high-voltage drives, automatic motor parameter identification without manual data input

Applicable Industries

Installation Requirements

1. Mount via front 260 mm square flange 8-point bolt fixing, full flat contact between flange and rigid heavy-load mounting fixture
2. Install elastic high-torque coupling between motor shaft and load to absorb shock and eliminate radial bearing overload
3. Maintain minimum 60 mm rear clearance for encoder cable harness routing and heat dissipation airflow
4. Motor power and encoder feedback cables use original Kollmorgen shielded high-voltage servo cables, single-point ground shield connection
5. Avoid mounting motor in direct coolant spray zones; install external splash guard if operating near cutting fluid sources
6. Motor mounting fixture must maintain structural rigidity; flexible thin plates induce resonance during high-torque operation

Usage Precautions

1. Limit 300% peak overload operation duration under 8 seconds; prolonged high overload causes permanent demagnetization of rotor rare-earth magnets
2. Do not disassemble rear encoder housing on-site; factory calibrated encoder position zero point is lost after disassembly
3. Clean motor housing cooling fins every 3 months in metal cutting workshops to prevent chip accumulation blocking heat dissipation
4. Ambient temperature exceeding 40°C requires forced air cooling fan and 10% continuous torque output derate
5. Avoid axial impact shock to motor output shaft; impact force damages rear encoder internal optical components
6. Disconnect drive three-phase power supply before plugging/unplugging motor power and encoder connectors to prevent arc damage to contact pins