Digital guide
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Kollmorgen 6SM 57M-3.000-09
Product Name: 6SM Series Permanent-Magnet Synchronous Servo Motor (medium-inertia, brushless)
Product Introduction
Three-phase brushless AC servo motor originally derived from the Seidel 6SM line, absorbed into Kollmorgen. Designed for high-torque, medium-speed, high-precision closed-loop motion. Neodymium-iron-boron rotor magnets, optimized magnetic circuit, low detent force.
Detailed content
Technical Specifications
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Rated power: 1.9 kW (some sources list 2.2 kW variant)
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Rated torque: 8.0 Nm (nominal); peak torque ~17 A / multi-times rated for short duration
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Rated speed: 3000 rpm; max mechanical speed 4500–6000 rpm
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Rated voltage: 330 V eff (400 V class); 230 V AC variant also documented
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Rated current: 4.0 A RMS; peak 17 A
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Frame: 57 × 57 mm square flange (NEMA 23 class)
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Shaft: 9.525 mm (3/8″) with keyway or smooth, 20–25 mm extension
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Feedback: 2-pole resolver standard; optional incremental/sine encoder, EnDat, Hiperface, BiSS
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Cooling: Natural convection or forced fan
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Protection: IP64/IP65
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Insulation: Class F (155 °C), thermal sensor KTY84/PTC optional
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Weight: 2.5–3.5 kg
Features & Structure
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Medium inertia for stable load matching
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Standardized flange and shaft for direct mechanical interchange
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Terminal box or connector version
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Compatible with Kollmorgen ServoStar CD/S300/S600/S700/AKD via correct commutation setup
Applications
CNC axis drives, packaging machinery, textile machines, printing presses, robot joints, injection molding.
Installation & Notes
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Flange-mount on machine frame; align coupling to avoid radial shaft load
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Use resolver/motor pairing only with drive configured for 6SM commutation
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Do not exceed 40 °C ambient without current derating
