Digital guide
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Detailed content
- E = Stack Length Code (Medium-Long Stack)
- ANSSS = Winding Configuration / Feedback Code
- 05481211 = Serial / Configuration Identifier
Product Introduction:
The AKM43E-ANSSS-05481211 is a brushless DC servo motor manufactured by Kollmorgen, designed for high-performance motion control applications. It features an integrated absolute feedback resolver and is built for seamless integration with AKD and S-Series servo drives. This motor delivers high torque density in a compact form factor, making it ideal for robotic joints, gimbal systems, and precision indexing applications.
Technical Specifications:
| Parameter | Value |
|---|---|
| Frame Size | 43 mm |
| Stack Length | E (Medium-Long) |
| Winding Type | ANSSS |
| Feedback Type | Integrated Multi-Turn Absolute Resolver |
| Voltage Rating | 48 VDC (Nominal Bus) |
| Continuous Torque | ~1.4 Nm (Typical for AKM43E) |
| Peak Torque | ~4.2 Nm (Typical for AKM43E) |
| Max Speed | 6,000 RPM |
| Phase Resistance | ~1.2 Ω (Typical) |
| Phase Inductance | ~0.8 mH (Typical) |
| Torque Constant (Kt) | ~0.22 Nm/A |
| Back-EMF Constant (Ke) | ~2.1 V/krpm |
| Rotor Inertia | ~0.08 g·cm² |
| Weight | ~0.45 kg |
| Insulation Class | Class H (180°C) |
| IP Rating | IP65 (with connector) |
| Operating Temperature | -20°C to +85°C |
Functional Features:
- Integrated absolute resolver eliminates need for external encoder
- High torque-to-inertia ratio for fast dynamic response
- Smooth cogging-free operation due to skewed slot design
- Silver-graphite commutation for extended brushless commutator life (where applicable in hybrid variants)
- Hall sensors for initial commutation alignment
- Corrosion-resistant housing with anodized aluminum construction
Structural Features:
- Stator: Laminated silicon steel with epoxy potting for thermal stability
- Rotor: Samarium Cobalt (SmCo) or Neodymium Iron Boron (NdFeB) permanent magnets
- Housing: Anodized 6061-T6 Aluminum Alloy
- Shaft: Hardened stainless steel, 10 mm diameter (typical for 43E)
- Connectors: Military-style circular connector (MIL-DTL-5015 or equivalent)
Advantages:
- Compact footprint with high power density
- Fully integrated feedback reduces system wiring complexity
- Wide speed range from 0 to 6,000 RPM
- Low electrical noise for EMI-sensitive environments
- Direct compatibility with AKD-P and S-Series drives
Applicable Industries:
- Robotics (joint actuators)
- Aerospace & Defense (gimbals, actuators)
- Medical Devices (surgical robots, imaging systems)
- Semiconductor Manufacturing (wafer handling)
- Automotive (test rigs, simulation)
Installation Requirements:
- Mount using 4-bolt flange pattern compatible with NEMA 17 or metric flange adapters
- Ensure thermal path to heatsink or forced-air cooling for continuous operation
- Torque mounting bolts to 2.5 Nm (typical)
- Align shaft coupling within 0.05 mm TIR
Usage Notes:
- Do not exceed peak current for more than 3 seconds without derating
- Verify resolver cable pinout matches drive configuration before power-up
- Store in dry environment with desiccant if not installed within 6 months
