Digital guide
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Kollmorgen B-604-B-A4
Product Name: Goldline B-Series AC Brushless Servo Motor (Frame 60)
Product Introduction:
The B-604-B-A4 belongs to the Goldline B-Series medium-frame (60) low-inertia servo motors, delivering high continuous power and torque for demanding dynamic motion applications.
Detailed content
Technical Specifications & Performance Parameters:
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Rated Output Power: ~6 kW / 8 HP
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Supply Voltage: 230 VAC
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Stall Torque: 31.9 Nm (282 lb·in) at 25°C
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Peak Torque: 63.7 Nm
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Rated Speed: 2150 RPM
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Rated Current: 19 Arms
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Frame Size: 60 (142×142 mm flange)
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Moment of Inertia: 20.34 kg·cm²
Material & Structural Features:
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Construction: Cast aluminum housing with Class H insulation.
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Feedback: Pre-assembled resolver, encoder adapter optional.
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Shaft: Open keyway, rear shaft extension.
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Connector: Screw-thread connector (without mating plug standard).
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Protection: IP65.
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Built-in Thermostat: Yes.
Working Principle:
Same as B-206: permanent magnet synchronous motor with resolver feedback closed-loop controlled by a servo amplifier.
Installation Requirements & Notes:
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Secure mounting on 142×142 mm flange.
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Use drives capable of 19 Arms continuous current (e.g., larger AKD or legacy ServoStar units).
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Avoid exceeding ambient temperature limits (typically 0–40°C operational unless derated).
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Low-inertia rotor demands tuned servo loop to prevent oscillation.
Application Scenarios:
Large-format printing, metal forming, CNC machine tools, material handling robots.
