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Product Introduction:
The M-605-B-99-R12-265 is an iron-core linear servo motor (forcer) from Kollmorgen’s M product line, designed for high-force, high-speed linear motion applications. The “B” denotes iron-core construction, “99” is the stack length, “R12” is the winding variant, and “265” defines the force/power rating.
Technical Specifications:
| Parameter | Value |
|---|---|
| Motor Type | Iron-core linear servo motor (forcer) |
| Force Constant (Kf) | 26.5 N/A (continuous) |
| Peak Force | 79.5 N (17.9 lbf) |
| Continuous Force | 26.5 N (5.96 lbf) |
| Max Speed (Continuous) | 6.0 m/s (1,181 in/s) |
| Peak Speed | 10.0 m/s (1,969 in/s) |
| Continuous Power | 1.6 kW (2.15 HP) |
| Peak Power | 4.8 kW (6.44 HP) |
| Magnet Track Length | 605 mm (23.82 in) |
| Coil Length Code | 99 — Full-length coil |
| Winding Code | R12 — Low-inductance, high-speed optimized |
| Force Rating Code | 265 — 26.5 N continuous |
| Voltage Rating | 200–480 VAC (3-Phase) |
| Encoder Type | Glass scale — 5 μm resolution (standard) |
| IP Rating | IP65 (forcer), IP54 (magnet track) |
| Weight (Forcer) | Approx. 8.5 kg (18.7 lbs) |
| Weight (Magnet Track) | Approx. 12.0 kg (26.5 lbs) |
Structural Features:
- Iron-core forcer construction — Laminated steel core with copper windings; higher force density than ironless at lower cost.
- NdFeB permanent magnet track — Halbach array configuration for maximum flux density in the air gap.
- 5 μm glass scale encoder — Directly mounted on forcer for nanometer-level position feedback.
- Sealed linear bearings — Integrated into forcer carriage (optional external bearing system available).
- Air gap: 0.75 mm (typical) — Critical for force output; must be maintained during installation.
Working Principle:
Three-phase current in the forcer windings creates a traveling magnetic field that interacts with the permanent magnet track, producing linear force. The glass scale encoder provides real-time position feedback to the servo drive. Motion is purely linear — no rotary-to-linear conversion losses.
Key Advantages:
- Zero mechanical transmission losses — Direct linear drive; no ballscrew, belt, or gearbox.
- 6 m/s continuous speed — Among the fastest in the M series.
- 26.5 N continuous force — Sufficient for most precision positioning and light cutting applications.
- Iron-core design — Lower cost than ironless; higher force at lower speeds.
Applicable Industries:
Semiconductor wafer steppers, Laser cutting/engraving, PCB drilling, Flat panel display handling, Precision metrology, Electronic assembly (pick-and-place).
Installation Requirements:
- Magnet track must be mounted on a flat surface with ≤ 0.02 mm flatness over full length.
- Forcer air gap: 0.75 mm ± 0.05 mm — use precision spacers or shims.
- Encoder cable must be routed in cable carrier; minimum bend radius 75 mm.
- Forcer must be paralleled to magnet track within 0.05 mm over 605 mm length.
- Ground both forcer and magnet track to chassis: ≤ 0.1 Ω each.
Usage Precautions:
- Do not allow foreign particles in the air gap — causes scratching and force ripple.
- Do not exceed 10 m/s — encoder and bearing limits.
- Iron-core motors generate cogging force — use drive cogging compensation feature.
- Operating temperature: 15°C to +40°C; magnet track degrades above 80°C.
