42mm Brushed DC Motor – 65mm Type Model NFP-RS-7712H/7724H

High Power Motor Technical Sheet

First, the NFP-RS-7712H and NFP-RS-7724H series are high-voltage brushed DC motors made for strong torque, stable speed, and reliable power output.

Also, these motors support nominal voltages from 100V to 150V DC. Therefore, users can choose a model based on speed, torque, current, and power needs.

In addition, no-load speed ranges from 3,000RPM to 12,300RPM. As a result, these motors are suitable for sewing machines, drills, screwdrivers, and other powered systems.

Main Product Features

• High-voltage operation: Models support nominal voltages of 100V, 110V, and 150V DC.
• Wide speed range: No-load speed ranges from 3,000RPM to 12,300RPM.
• Strong torque: Stall torque reaches up to 5,433g.cm.
• High output power: Maximum efficiency output reaches up to 134.03W.
• Good efficiency: Maximum efficiency reaches up to 73%.
• Low no-load current: Some versions draw as little as 0.06A at no load.
• Simple control: The brushed DC design works with suitable high-voltage DC motor controllers.

Motor Performance Data

Next, the table below compares the four motor versions. It shows voltage, speed, current, torque, power, efficiency, and stall data.

For example, the NFP-RS-7724H-2322 provides the highest no-load speed at 12,300RPM. Also, it gives the highest maximum efficiency output at 134.03W.

However, this version also has the highest stall current at 7.50A. Therefore, the power supply, driver, wiring, and protection circuit must be sized correctly.

In contrast, the NFP-RS-7712H-0961 reaches the highest efficiency at 73%. As a result, it offers a good balance of speed, torque, and power.

High Voltage 100V 110V 150V DC Motor Outline Drawing

First, the outline image shows the motor body, shaft, mounting points, and overall form. Therefore, users can check the required installation space before making a bracket or housing.

Also, the motor structure is suited to higher-voltage drive systems. As a result, it can support compact machines that need steady speed and useful torque.

Mechanical Design Benefits

• Strong motor body: Supports stable operation under higher voltage.
• Simple shaft design: Makes pulley, gear, and coupling installation easier.
• Easy mounting: The motor can be fixed with a suitable frame or bracket.
• Several winding options: Users can choose different speed and voltage levels.
• Wide use: Suitable for sewing machines, drills, screwdrivers, and custom machines.

High Efficiency Electric Motor Characteristic Curve

Next, the characteristic curve shows how speed, current, torque, power, and efficiency change as the load increases. Therefore, it helps users choose a suitable working range.

Also, current rises as the motor load becomes heavier. In contrast, motor speed falls as torque increases.

Performance Curve Benefits

• Speed check: Shows how RPM changes under load.
• Current check: Helps choose the correct power supply and driver.
• Torque check: Helps match the motor to the working load.
• Power check: Shows the useful output power range.
• Efficiency check: Helps find a better point for long-term use.
• Stall check: Helps plan current limits, fuses, and overload protection.

Applications and Selection Tips

Typical Applications

Finally, these high-voltage DC motors work well in systems that need stable speed, useful torque, and compact motor size.

• Sewing machines: Provides steady rotary power for drive systems.
• Drills: Supports high-speed tool operation.
• Screwdrivers: Provides controlled power for fastening systems.
• Small machines: Fits compact powered equipment.
• Automation units: Can drive rollers, belts, pumps, and other moving parts.
• Custom OEM systems: Suitable for special high-voltage DC motor projects.

How to Choose the Correct Motor

First, choose the motor based on the available DC voltage. Next, compare the required speed and torque with the values in the table.

Also, check the normal working current instead of only the no-load current. Therefore, the power supply can support the motor under real load.

Moreover, check the stall current when choosing the motor driver and fuse. For example, the highest-power version can draw up to 7.50A at stall.

In addition, make sure all high-voltage parts are properly insulated. As a result, the system can operate more safely and reliably.

Finally, avoid long stall conditions. Otherwise, high current and heat can damage the motor or control system.

Final Selection Notes

• First, check voltage: Choose the winding that matches the DC power source.
• Next, check speed: Select from 3,000RPM to 12,300RPM.
• Also, check torque: Match the motor to the normal working load.
• Moreover, check current: Size the power supply for real working current.
• In addition, check stall current: Use suitable wiring, driver protection, and a fuse.
• Then, check insulation: Use proper high-voltage wiring and safe spacing.
• Furthermore, check mounting: Use a firm bracket to keep the shaft aligned.
• Finally, test the full system: Check speed, torque, current, heat, noise, and working life before mass production.

In short, the NFP-RS-7712H and NFP-RS-7724H series are high-voltage brushed DC motors with several speed, torque, and power options.

Therefore, they are well suited for sewing machines, drills, screwdrivers, compact machines, and other high-voltage DC drive systems.

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