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Kollmorgen M-603-B-A9-B3-062
Product Introduction:
M-603-B-A9-B3-062 is a frameless-capable framed Goldline M-603 medium-inertia brushless servo motor. The M-603 frame delivers ~17.4 Nm continuous stall torque at 3000 RPM on 230 VAC drives. Suffix decode: M = medium inertia, 603 = frame/size, B = winding/voltage class (230 V), A9 = custom winding/connector variant, B3 = holding brake fitted, 062 = shaft/feedback option code.
Detailed content
Technical Specifications (M-603-B class):
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Rated speed: 3000 RPM
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Max speed: 3000 RPM (rated) / higher transient allowed by drive
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Continuous stall torque (40 °C): 17.4 Nm
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Continuous stall torque (25 °C): 18.4 Nm
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Peak torque: 49.5 Nm
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Continuous line current: 15 A RMS
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Peak line current: 45 A RMS
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Torque constant: 1.15 Nm/A RMS
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Back-EMF (line-to-line): 70 V RMS/kRPM
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Stator resistance (L-L): 0.674 Ω
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Stator inductance (L-L): 13.3 mH
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Rotor inertia: 0.00775 kg·m²
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Poles: 6
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Holding brake: Yes (B3 suffix), 24 VDC release
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Weight: approx. 20 kg
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Thermal time constant: 28 min
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Insulation: Class H, built-in thermostat
Functional Features:
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NdFeB permanent-magnet rotor, medium inertia for stable load matching
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Ribbed cast-aluminum housing, natural convection
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Rear mounting face with metric or NEMA flange
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Resolver or encoder feedback (062 option typically resolver + special shaft)
Material & Structure:
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Stator: laminated silicon steel, 6-pole 3-phase winding, Class H varnish
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Rotor: bonded NdFeB magnets on steel hub
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Housing: cast aluminum with longitudinal cooling ribs
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Shaft: alloy steel, keyway or plain per option
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Brake: spring-applied electromagnetic disk brake
Working Principle:
3-phase stator currents produce rotating field; permanent-magnet rotor follows field angle; electronic commutator (in drive) uses resolver to align current vector at 90° electrical for max torque per amp.
Application Scenarios:
Injection-molding ejector shafts, press-feed rollers, large rotary index tables, winder/unwinder tension axes, machine-tool C-axis.
Installation Requirements:
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Rigid flange mount to machined surface; shaft alignment < 0.05 mm TIR
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Brake supply from isolated 24 VDC with surge protection
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Feedback cable shielded, separated from power by >100 mm or metal partition
Usage Notes:
Do not disassemble rotor from stator without magnet demag risk. Brake is holding-only, not dynamic stopping. Verify A9 winding matches drive bus voltage before energizing.
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