---
product_id: 806331028
title: "Nema 34 Stepper Motor 86x78mm 5.2Nm (736.38oz·in) 6.4A 0.4Ω Bipolar"
brand: "yejmkj"
price: "557.75 DT"
currency: TND
in_stock: true
category: "Yejmkj"
url: https://www.desertcart.tn/products/806331028-nema-34-stepper-motor-86x78mm-5-2nm-736-38oz-in
store_origin: TN
region: Tunisia
---

# Nema 34 Stepper Motor 86x78mm 5.2Nm (736.38oz·in) 6.4A 0.4Ω Bipolar

**Brand:** yejmkj
**Price:** 557.75 DT
**Availability:** ✅ In Stock

## Quick Answers

- **What is this?** Nema 34 Stepper Motor 86x78mm 5.2Nm (736.38oz·in) 6.4A 0.4Ω Bipolar by yejmkj
- **How much does it cost?** 557.75 DT with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/806331028-nema-34-stepper-motor-86x78mm-5-2nm-736-38oz-in)

## Best For

- yejmkj enthusiasts

## Why This Product

- Trusted yejmkj brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Description

desertcart.com: YEJMKJ Nema 34 Stepper Motor 86x78mm 5.2Nm (736.38oz·in) 6.4A 0.4Ω Bipolar | 86 Stepper Motor 2 Phase High Torque 1.8‌°‌ Shaft 32mm φ14mm 4-Lead Cable 2M Mill Lathe Router 3D Printer DIY Robot : Industrial & Scientific

## Features

- Dimensional details: The physical dimensions of a Nema 34 Stepper Motor are summarized below. Body size 86x86x77.5mm, (3.39x3.39x3.06in), Installation hole distance 69.6mm, Shaft length 32±0.5mm, Shaft diameter φ14mm, Key5*5*25mm, Cable 2m, 4-Wire Black (A+) Green (A-) Red (B+) Blue (B-), Weight 2367g.
- Parameters: Nema 34 Stepper Motor 2 Phase, Step angle 1.8‌dge (200 steps/rev), Holding torque 5.2Nm (736.38oz·in), Resistance 0.4Ω, Rated current 6.4A, Inductance 2.6mH±20%, Rotor inertia approx 1500g.cm².
- Safety Specifications: Operating safely and reliably, this Nema 34 Step motor comes with the following key safety parameters. Dielectric strength 500V A.C 1 MINUTE; Insulation class(UL) B (130℃) [266°F]; Insulation resistance 100MΩ MIN; Temperature rise 80K MAX; Operation ambient humidity 15%RH～95%RH; Operation ambient temperature -20℃ ～+50℃ [-4°F～122°F].
- Safety Specifications: Operating safely and reliably, this Nema 34 Step motor comes with the following key safety parameters. Dielectric strength 500V A.C 1 MINUTE; Insulation class(UL) B (130℃) [266°F]; Insulation resistance 100MΩ MIN; Temperature rise 80K MAX; Operation ambient humidity 15%RH～95%RH; Operation ambient temperature -20℃ ～+50℃ [-4°F～123°F].
- Important Notes: Faster speeds lead to lower torque; the recommended operating range is 0–600 RPM. Lower current reduces torque and temperature rise, while lower voltage decreases torque (recommended range: 48–80V DC). The 86mm Stepper Motor is used in 3D printers, DIY robots, CNC machines, and other automated systems. Its compact size and high torque suit demanding applications.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0FHHWQGVD |
| Best Sellers Rank | #404,869 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #210 in 3D Printer Motors |
| Brand Name | YEJMKJ |
| Included Components | motor |
| Item Weight | 5.6 pounds |
| Manufacturer | YEJMKJ |
| Number of Items | 1 |
| Part Number | N34-86-78 |

## Product Details

- **Brand:** YEJMKJ
- **Item Weight:** 5.6 pounds
- **Manufacturer:** YEJMKJ
- **Number of Items:** 1

## Images

![Nema 34 Stepper Motor 86x78mm 5.2Nm (736.38oz·in) 6.4A 0.4Ω Bipolar - Image 1](https://m.media-amazon.com/images/I/41dZO9UnQ+L.jpg)
![Nema 34 Stepper Motor 86x78mm 5.2Nm (736.38oz·in) 6.4A 0.4Ω Bipolar - Image 2](https://m.media-amazon.com/images/I/41Vz8ftaivL.jpg)
![Nema 34 Stepper Motor 86x78mm 5.2Nm (736.38oz·in) 6.4A 0.4Ω Bipolar - Image 3](https://m.media-amazon.com/images/I/51ZBIvm-hlL.jpg)
![Nema 34 Stepper Motor 86x78mm 5.2Nm (736.38oz·in) 6.4A 0.4Ω Bipolar - Image 4](https://m.media-amazon.com/images/I/41TkK8nABzL.jpg)
![Nema 34 Stepper Motor 86x78mm 5.2Nm (736.38oz·in) 6.4A 0.4Ω Bipolar - Image 5](https://m.media-amazon.com/images/I/51OCUx7m7+L.jpg)

## Questions & Answers

**Q: What are the key characteristics of the stepper motors?**
A: They are known for high torque output, low noise, and robust construction. They typically have a step angle of 1.8 degrees and offer precise positioning control, making them ideal for applications requiring accuracy and strength.

**Q: Does it require a specific power supply?**
A: Yes. For optimal performance, we recommend a 24-36V DC power supply. Lower voltages will result in reduced torque. Additionally, while higher current settings increase torque, they also result in more significant motor heating.

**Q: What is the recommended operating speed range for YEJMKJ stepper motors?**
A: The higher the speed, the lower the torque. Recommended speed range: 0-600 rpm for open-loop motors.

**Q: What applications is this stepper motor compatible with?**
A: The motor delivers high torque, making it ideal for projects that require accurate positioning. The stepper motors find widespread use in applications such as CNC routers, engraving machines, DIY robot, and industrial automation systems.

**Q: What are the environmental operating conditions for this stepper motor?**
A: YEJMKJ stepper motors are built to perform in a wide range of environments, with an operating humidity range of 15% to 95% RH and a temperature range of -20°C to +50°C (-4°F to 122°F).

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*Product available on Desertcart Tunisia*
*Store origin: TN*
*Last updated: 2026-09-04*