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Kollmorgen ZYT-S300-302A
Product Name: Kollmorgen ZYT-S300-302A — DC Brush Motor (ZYT Series)
Product Overview:
The ZYT-S300-302A is a permanent magnet DC brush motor from Kollmorgen’s ZYT product family. It is designed for cost-sensitive applications requiring simple speed control with reliable brush-type commutation.
Detailed content
Model Series: ZYT-S Series DC Brush Motors
Key Specifications:
| Parameter | Value |
|---|---|
| Frame Size | 300 mm (outer diameter) |
| Rated Voltage | 24 VDC |
| Rated Speed | 3000 RPM (no-load) |
| Rated Torque | 0.3 Nm (continuous) |
| Stall Torque | 1.2 Nm |
| Rated Current | 3.5 A |
| Stall Current | 14 A |
| Power Rating | 90 W |
| Efficiency | 78% (at rated point) |
| Shaft Diameter | 8 mm, with keyway |
| Weight | Approximately 1.8 kg |
| Insulation Class | Class B (130°C) |
Construction & Materials:
- Housing: Zinc-plated steel ( stamped and welded)
- Magnets: Ferrite (ceramic) permanent magnets
- Commutator: Copper segments with silver plating
- Brushes: Electrographite, spring-loaded
- Bearings: Sleeve bearings (oil-impregnated sintered bronze)
- Shaft: Carbon steel, hard-chrome plated
Working Principle:
DC voltage is applied to the armature windings via carbon brushes contacting the rotating commutator. The permanent magnet stator creates a fixed magnetic field. Interaction between armature current and stator field produces torque. Speed is proportional to applied voltage.
Advantages:
- Low cost — economical solution for non-critical motion applications
- Simple drive electronics — requires only a PWM H-bridge, no encoder needed for open-loop speed control
- High starting torque — 3.4× rated torque at stall
- Wide voltage tolerance — operates from 18–36 VDC
Applicable Industries:
Conveyor drives, AGV traction motors, door actuators, vending machines, simple linear actuators, low-cost robotics
Installation Requirements:
- Mount with 4× M4 bolts using rear flange
- Align shaft to load within 0.1 mm offset
- Ensure minimum 25 mm ventilation clearance
- Connect brushes with correct polarity (reverse polarity damages commutator)
Usage Notes:
- Brush life is approximately 2000–5000 hours — inspect and replace periodically
- Do not operate without load for extended periods (causes commutator arcing)
- Use PWM frequency ≥20 kHz to minimize audible noise
- Derate torque by 30% at ambient temperatures above 40°C
