45Kg-Cm Stepper Motor NEMA34

Description

The EMM 86S78-120 is a robust and high-torque 2-phase stepper motor designed for applications where precise control and durability are essential. Featuring a step angle of 1.8° per step, this motor delivers reliable and accurate positioning. Built to operate effectively in challenging environments, it functions within an ambient temperature range of -20°C to +50°C and tolerates humidity levels up to 90% without condensation.

This model provides a strong holding torque of 45 kg-cm and is equipped with IP40 protection and Class B thermal insulation, allowing safe operation up to 130°C. With flexible mounting options in both horizontal and vertical orientations, the EMM 86S78-120 is well-suited for a wide array of industrial applications.

Key Electrical Specifications:

• Phases: 2
• Stepping Angle: 1.8° per step
• Voltage per Phase: 2.80V
• Current per Phase: 5.80 Amps
• Resistance per Phase: 1.5Ω
• Inductance per Phase: 3.4mH
• Leads: 4-wire configuration

Mechanical Specifications:

• Holding Torque: 45 kg-cm
• Detent Torque: 1.32 kg-cm
• Rotor Inertia: 1400 gm-cm²
• Motor Mass: 2.30 kg
• Shaft Radial Play: 0.02mm max (under 450g load)
• Shaft Axial Play: 0.08mm max (under 450g load)
• Maximum Radial Force: 220N (20mm from the flange)
• Maximum Axial Force: 60 N-m

General Specifications:

• Operating Temperature Range: -20°C to +50°C
• Storage Temperature Range: -20°C to +60°C
• Operating Humidity: 90% RH at 40°C (no condensation)
• Insulation Resistance: Minimum 100MΩ at 500V DC
• Dielectric Strength: 1500V AC
• Thermal Class: Class B (up to +130°C)
• Protection Grade: IP40
• Mounting Direction: Horizontal and vertical

The EMM 86S78-120 stepper motor is a powerful and dependable solution for precision applications in industrial automation, robotics, and CNC machinery. With its high torque and exceptional durability, it meets the demands of environments requiring rigorous performance and accuracy.