SKU: 3DDF-1882
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JK42HS40 NEMA17 Stepper Motor - 4.2 kg-cm, D-Shaft

₹699.00 (Inclusive of all taxes)
Out of Stock

The JK42HS40-1204AF-02 NEMA17 Stepper Motor provides 4.2 kg-cm holding torque and a precise 1.8° step angle, ensuring reliable and accurate motion control. Featuring a robust D-type shaft, it’s an essential component for 3D printers, CNC machines, and various automation projects.

Features

  • Delivers 4.2 kg-cm holding torque for robust motion control.
  • Achieves high precision with a 1.8° step angle.
  • Features a D-type shaft for secure and reliable pulley or gear mounting.
  • Simplifies integration with open-loop control mechanisms.
  • Includes a 70cm detachable cable for convenient installation and maintenance.

Out of stock

Description

The JK42HS40-1204AF-02 NEMA17 Stepper Motor is engineered to deliver precise and reliable motion, offering 4.2 kg-cm of holding torque at 1.2A current per phase. These motors are highly effective in applications demanding low speed with high positional accuracy, such as 3D printers, small-scale CNC routers, and robotic arms. Its inherent open-loop control mechanism eliminates the need for complex electronic feedback systems, making it a cost-effective and straightforward solution for precise automation.

Equipped with a machined D-type shaft, this stepper motor ensures superior grip with attached components like pulleys or drive gears, significantly reducing the risk of slippage or stalling during operation. The inclusion of a detachable 70cm cable further enhances its utility, providing flexibility and ease during wiring, installation, and subsequent maintenance or modifications. This design focuses on robust performance and user-friendly integration for various digital fabrication and automation setups.

Key Features

  • Input pulse frequency directly dictates the motor's rotation speed.
  • High step angle accuracy of approximately 3% to 5% per step for precise movements.
  • Offers excellent starting, stopping, and reversing characteristics under load.
  • Cost-effective control due to its open-loop nature, avoiding complex circuitry.
  • Speed is directly proportional to the frequency of the applied input pulses.

Applications

  • 3D Printers (X, Y, Z axis motion control)
  • CNC Engravers and Milling Machines
  • Robotic Arms and Actuators
  • Automated Dispensing Systems
  • Precision Linear Actuators

Technical Specifications

Item TypeNEMA 17 Stepper Motor
Model No. / NameJK42HS40-1204AF-02
Frame Size42 x 42 mm
Step Angle1.8°
Step Angle Accuracy±5%
Shaft TypeD-Type
Shaft Diameter5 mm
Shaft Length18 mm
Holding Torque4.2 kg-cm
Detent Torque0.22 kg-cm
Current1.2 A/Phase
No. of Leads4
Inductance3.2 mH
Inductance Accuracy±20%
Resistance Accuracy±10%
Rotor Inertia54 g-cm²
Cable Length70 cm
Weight0.29 kg
Dimensions (L x W x H)42 x 42 x 40 mm

Frequently Asked Questions

What driver is compatible with the JK42HS40 NEMA17 Stepper Motor?

This NEMA17 stepper motor with 1.2A per phase typically requires a dedicated stepper motor driver like the TB6600 or DM542. These drivers provide the necessary current and control signals for optimal performance and smooth operation in various applications.

What is the significance of the "D-Type Shaft"?

The D-Type shaft features a flat edge, which provides an excellent surface for set screws. This design ensures a secure, non-slip attachment for pulleys, gears, or couplers, minimizing potential for rotational slippage and ensuring reliable power transmission in high-precision applications.

Can this motor operate at very high speeds?

While NEMA17 stepper motors offer excellent precision at lower speeds, they are generally not optimized for extremely high-speed operation. Performance may degrade, and torque can drop significantly at very high RPMs. They excel in applications requiring precise, controlled incremental movements.

What is the step angle of this motor, and how does it affect precision?

This motor has a 1.8° step angle, meaning it completes 200 steps per full 360° revolution. A smaller step angle indicates higher resolution and precision in movement. It allows for finer control over positioning, crucial for detailed 3D printing or intricate CNC machining tasks.

What is holding torque, and why is 4.2 kg-cm important?

Holding torque is the maximum static torque the motor can exert without rotating when its windings are energized. A 4.2 kg-cm holding torque indicates this motor can firmly hold its position against significant external loads, preventing unwanted movement and ensuring positional accuracy when idle.

Package Includes

  • 1 x JK42HS40-1204AF-02 NEMA17 4.2 kg-cm Stepper Motor - D-Type Shaft

Additional Information

Weight 0.29 kg
Dimensions 4.2 × 4.2 × 4 cm