Engineering Specifications
AC & DC Motor Options
Custom electrical windings, mechanical shaft modifications, specialized gearing, and mechanical brake/clutch solutions for global OEM applications.
OEM Motor Customization Guidelines
Tailored Electrical & Mechanical Solutions for Global Procurement
At Molon Motor & Coil Corporation, standard catalog specifications represent only the baseline of our production capabilities. For over seven decades, our U.S.-based engineering team has designed specialized fractional horsepower (FHP) AC and DC motors and gearmotors engineered specifically for medium- to high-volume OEM programs.
Whether your design demands specific voltage tolerances, low-noise helical gearing, extreme thermal management, or positive-holding mechanical brake assemblies, Molon provides fully validated modifications built to your mechanical envelope and duty-cycle targets.
DC Motor & Gearmotor Engineering Options
Molon DC platforms offer versatile voltage configurations, custom electronic feedback options, and reinforced mechanical drive components tailored for battery-operated machinery, medical devices, commercial food equipment, and industrial automation systems.
- Voltage Range Options: Custom winding configurations for low-voltage battery duty (6 VDC, 12 VDC, 24 VDC) up to line-rectified high-voltage applications (115 VDC and 240 VDC).
- AC-to-DC Conversion: Integrated full-wave bridge rectifiers and power supply transformers for seamless connection to AC utility grids.
- Integrated Control Boards: Custom-designed printed circuit board assemblies (PCBAs) mounted internally or externally for direct speed regulation and logic interface.
- Positioning Cam & Limit Switches: Factory-installed precision limit switches and custom mechanical cams for automated cycle control and travel stops.
- Custom Output Shafts: Extended front or rear shafts, D-flats, keyways, cross-drilled holes, pinions, splines, and stainless steel materials tailored to customer drawings.
- Wiring Harnesses & Terminals: Custom lead lengths, protective sleeving, quick-disconnect terminals, or customer-specified OEM pin connectors.
- Low-Noise Helical Gearing: Precision-molded synthetic or cut helical gears optimized for low audible noise and smooth power transmission in sensitive environments.
- High-Strength Steel Gears: Heavy-duty cut steel gear trains designed for high peak shock loads and extended service life.
- EMI / RFI Noise Suppression: Internal varistors, capacitors, and chokes to satisfy international electromagnetic compatibility standards.
- Environmental Protection: Heavy-duty splash-proof vinyl protective covers and sealed housings for washdown or high-humidity environments.
AC Motor & Gearmotor Engineering Options
Designed for continuous fixed-speed duty, Molon Permanent Split Capacitor (PSC) and Shaded Pole AC gearmotors can be specified with numerous thermal, mechanical, and electrical features to match global utility standards.
- Global Voltage & Frequency Compatibility: Custom windings operating from 24 VAC to 240 VAC across 50 Hz, 60 Hz, or dual-frequency operation.
- Thermal Overload Protection: Automatic reset thermal protectors, impedance-protected stators, or single-shot thermal fuses for UL and CE compliance.
- Auxiliary Cooling Systems: Integrated high-efficiency cooling fans for high-ambient applications or continuous heavy thermal duty.
- Customized Shaft Configurations: Single or dual output shaft extensions modified for precise coupling, pulley, or sprocket attachment.
- Flexible Electrical Connection: Solder terminals, standard wire leads, insulated wire harnesses, or customized connector blocks.
- Acoustically Optimized Gear Trains: Hybrid metal and synthetic gear trains engineered for optimal strength-to-noise ratios.
Precision AC Motor Brake & Clutch Options
For applications requiring immediate stopping, position holding, or disengagement of motor inertia, Molon offers four specialized rotor brake and clutch systems designed to enhance control accuracy and protect driven machinery.
1. Rotor Clutch Assembly
Enables ultra-fast stopping action by instantly disengaging high rotor inertia from the gear train upon electrical de-energization. This option is exceptionally effective for stopping drag-type loads at the output shaft while allowing the output shaft to turn freely by hand when power is off. (Designed for horizontal mounting positions.)
2. Disk-Type Rotor Brake
Utilizes high-friction cork disks forced together by an internal rotor spring when the motor is de-energized. Stops the motor shaft within 8 to 12 rotor revolutions (depending on load torque and system inertia) and effectively holds static back-up loads. (Designed for horizontal mounting positions.)
3. Cone-Type Rotor Brake
Employs a conical cork element pressed into a matching conical seat via rotor spring tension during power-off states. Provides rapid stopping action within 4 to 6 rotor revolutions and delivers dependable static load holding at the output shaft. (Designed for horizontal mounting positions.)
4. Magnetic Positive-Action Rotor Brake
Features a heavy-duty mechanical pawl arm that positively engages the rotor tooth structure immediately upon power cut-off. Delivers rapid stopping within 1 to 3 rotor revolutions and securely holds heavy back-up loads against reverse rotation. (Suitable for all physical mounting orientations.)
Technical Specification Comparison Matrix
Review standard physical and operational capabilities across Molon's customized OEM platforms:
| Feature Category | DC Gearmotor Platform | AC Gearmotor Platform |
|---|---|---|
| Voltage Capabilities | 6 - 24 VDC, 115 - 240 VDC (Rectified) | 24 - 240 VAC (50/60 Hz) |
| Brake & Clutch Options | Custom mechanical / electronic stopping | Clutch, Disk, Cone & Magnetic Pawl Brakes |
| Shaft Customization | Single / Dual Extension, D-Flat, Keyway, Pinions | Single / Dual Extension, Flats, Special Diameters |
| Gearing Options | Cut Steel, Powdered Metal, Synthetic Helical | High-Strength Cut Steel, Helical Synthetic |
| Thermal Protection | Electronic Current Limit, PCBA Fuses | UL Thermal Protectors, Impedance Protection |
| Regulatory Compliance | UL Recognized, RoHS, REACH Compliant | UL Recognized, ISO 9001, ISO 13485 |
Quality Control & Global OEM Support
Every customized gearmotor produced at Molon's facilities in Arlington Heights and Rolling Meadows, Illinois undergoes rigorous electrical, mechanical, and dielectric testing. Operating under an ISO 9001:2015 and ISO 13485:2016 quality management system, Molon provides full component traceability, PPAP documentation, and strict revision control for international device manufacturers.