Technical & Performance Specifications

• Rated Matching Drive Voltage: 230VAC three-phase output
• Continuous Stall Torque: 7.2 N·m
• Peak Transient Torque (0–2s): 21.6 N·m
• Rated Continuous Operating Speed: 2500 RPM
• Maximum Mechanical Safe Speed: 5500 RPM
• Rotor Moment of Inertia: 0.00135 kg·m²
• Rated Phase Operating Current: 9.1A RMS
• Feedback Device (33 suffix): Standard 4-pole analog resolver, 120V excitation signal
• Winding Insulation Class: Class F (155°C maximum winding temperature)
• Protection Rating: IP65 motor housing, IP67 shaft oil seal
• Flange Standard: NEMA 23 square mounting flange four-hole through-hole pattern
• Shaft Spec (B3): Smooth unkeyed output shaft standard length

Material Composition

• Motor Housing: Die-cast aluminum alloy vertical fin heat sink housing, black hard anodized anti-corrosion coating
• Stator Lamination Core: 0.35mm low-loss grain-oriented silicon steel stack
• Rotor Permanent Magnet: Sintered neodymium iron boron magnet with high-temperature anti-demagnetization coating
• Stator Winding Wire: Class F polyimide insulated copper magnet wire, vacuum epoxy impregnated
• Bearing Unit: Sealed double-row deep-groove ball bearing with high-temperature lithium synthetic grease
• Output Shaft: 4140 quenched tempered alloy steel, hard chrome plated anti-wear surface

Structural Features

• Extended long stack NEMA 23 square flange housing design for increased stator winding volume and continuous torque output
• Rear rotatable 360° power and feedback cable junction box for flexible wiring layout adjustment
• Independent sealed rear resolver feedback chamber isolated from power terminal compartment to prevent oil mist contamination
• Dual front/rear sealed bearing assembly with reinforced front bearing for medium radial load capacity
• Integrated vertical heat dissipation fins on aluminum housing for passive natural convection cooling without auxiliary fan
• Full perimeter EPDM O-ring seal on housing split joints to block dust and splashing liquid ingress

Working Principle

1. Three-phase sine wave excitation current from matched 230VAC servo drive energizes stator distributed winding to generate rotating magnetic field;
2. IPM permanent magnet rotor interacts with stator rotating field to produce steady electromagnetic torque transmitted through output shaft to mechanical load;
3. Rear-mounted resolver sensor converts mechanical rotation angle and velocity into analog feedback signal for servo drive closed-loop position/speed regulation;
4. Extended stator stack design increases magnetic flux area to raise continuous torque output without increasing flange mounting footprint;
5. Vacuum-impregnated winding eliminates internal air gaps to reduce heat accumulation under medium continuous duty cycle load.

Function Features

1. Balanced rotor inertia design delivers both high continuous torque and fast acceleration for medium-cycle reciprocating positioning axes;
2. Low cogging torque IPM electromagnetic layout maintains torque ripple <1.3% across full operating speed range for smooth motion;
3. Analog resolver feedback operates stably under heavy vibration, oil mist, and wide ambient temperature fluctuation without signal degradation;
4. Standard IP65 housing protection supports installation in general production workshops with coolant splash and light dust pollution;
5. Sealed bearing maintenance cycle 20,000 rated operating hours without intermediate grease replenishment requirement.

Advantage Highlights

1. Extended long stack frame delivers 50% higher continuous torque than standard B-204 frame size while retaining identical NEMA 23 mounting flange dimensions;
2. Die-cast aluminum housing superior thermal conductivity limits winding temperature rise under full continuous torque duty cycle;
3. Universal NEMA 23 mechanical flange interface enables direct drop-in replacement for all mainstream global medium frame servo motors;
4. Native compatibility with all Kollmorgen CE06 low-voltage and AKD single-phase servo drives without manual parameter modification;
5. Resolver feedback eliminates fragile optical encoder glass components for heavy vibration machinery operation environments.

Applicable Industries

Installation Requirements

1. NEMA 23 four-hole square flange mounting, M6 mounting bolts crosswise evenly tightened to 8N·m torque;
2. Minimum 25mm clearance around motor housing heat sink fins for unobstructed natural convection air flow;
3. Shaft coupling radial concentricity runout error controlled ≤0.03mm to prevent premature bearing wear failure;
4. Rear cable junction box installed upward or horizontal orientation to avoid liquid accumulation inside terminal chamber;
5. Mounting base flatness tolerance ≤0.05mm over full flange contact surface to eliminate uneven mechanical stress;
6. Flexible bellows shaft coupling mandatory, rigid direct connection to load shaft prohibited for reciprocating motion axes.

Usage Precautions

1. Cease equipment operation for cooling if motor housing external surface temperature exceeds 90°C, maximum safe continuous winding temperature 130°C;
2. No direct radial impact load applied to output shaft during mechanical assembly to avoid permanent bearing inner race deformation;
3. Avoid long-term continuous operation within motor mechanical resonance speed band (1000–1600 RPM);
4. Bearing grease replenishment maintenance required after reaching 20,000 continuous rated operating hours;
5. High-pressure water jet direct washing of rear resolver feedback cover and terminal junction box strictly prohibited;
6. Only matched with 230VAC standard voltage servo drives, operation with 400/480V high-voltage drives will cause irreversible winding insulation burnout.