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115mm 8.5NM Closed Loop Nema 34 Bldc Motor smooth running

115mm 8.5NM Closed Loop Nema 34 Bldc Motor smooth running

115mm 8.5NM Closed Loop Nema 34 Bldc Motor smooth running
115mm 8.5NM Closed Loop Nema 34 Bldc Motor smooth running
Product Details:
Place of Origin: Jiangsu, China (Mainland)
Brand Name: Jkongmotor
Certification: CE, ROHS,ISO9001
Model Number: JK86HSN85
Payment & Shipping Terms:
Minimum Order Quantity: 3-10pcs
Price: US$70~US$85
Packaging Details: with export carton . big quantity with pallet
Delivery Time: For samples , 7-15 days / For batch , 15-25days
Payment Terms: T/T , paypal , Western Union, L/C
Supply Ability: 100000pcs/month
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Detailed Product Description
Product Nema: Nema34 Closed Loop Stepper Motor Leads: 4
Current: 6.0A Holding Torque: 8.5N.m
Motor Weight: 4.3KG Driver Weight: 0.65KG
Shaft: Single Shaft Diameter: 14mm
Encoder: Available Motor Length: 115mm
Step Angle: 1.8 Degree
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Closed Loop nema 34 bldc motor


8.5NM nema 34 bldc motor


115mm nema 34 closed loop stepper motor

Nema 34 Closed Loop Stepper Motor Systerm with high Torque 8.5N.M Easy Servo Motor For Laser Engraving Machines


Like stepper motors, servo motors have many implementations. Let’s consider the most common design, which incorporates a rotor with permanent magnets and a stationary stator with the windings. Here too, the current creates a magnetic field distribution that acts on the rotor to develop torque. Servo motors have significantly lower pole counts than stepper motors, however. As a result, they must be run closed-loop.                                                                                                                               

In general, servo motors are more sophisticated than stepper motors. They run significantly faster than stepper motors, with speeds on the order of several thousand RPMs . This enables servo motors to be used with gearboxes to deliver much higher torque at useful speeds. They also deliver more consistent torque across the speed range of the motor. Unlike stepper motors, they do not have holding torque per se.

Genaral Specification of closed loop stepper motor:


 Item  Specifications
 Step Angle  1.8°
 Temperature Rise  80℃max
 Ambient Temperature  -20℃~+50℃
 Insulation Resistance  100 MΩ Min. ,500VDC
 Dielectric Strength  820VAC for 1minute
 Shaft Radial Play  0.02Max. (450g-load)
 Shaft Axial Play  0.08Max. (450g-load)
 Max. radial force  220N (20mm from the flange)
 Max. axial force  60N


Electrical Specification of nema 34 closed loop stepper motor 8.5N.m:


Model No.

Step Angle

Motor Length







Holding Torque

# of Leads

Detent Torque

Rotor Inertia


  ( °) (L)mm A Ω mH N.m No. Kg
JK86HS78-6004 XBJED-0.35M 1.8 115 6 0.36 3.8 8.5 4 2.4 2700 4.3


closed loop Stepper motor Driver: JK-HSD86

Parameter Min Typical Max Unit
Input Voltage (JK-HSD86) 20 36 48 50 VDC
Input Voltage (JK-HSD86C) 24 36 48 80 VDC
Input Voltage (SC8680C) 24VAC 60AC 80VAC 100VDC VVDC
Output Current 0.1 - 10(Peak) A
Pulse Input Frequency 0 - 200 kHz
Logic Signal Current 7 10 16 mA
Isolation Resistance 500 - -  



closed loop stepper motor Drawing


115mm 8.5NM Closed Loop Nema 34 Bldc Motor smooth running 0



Details of product:

One set includes stepper motor and stepper driver with 3m cables


115mm 8.5NM Closed Loop Nema 34 Bldc Motor smooth running 1

115mm 8.5NM Closed Loop Nema 34 Bldc Motor smooth running 2


Our Services:

We aslo supply Stepper motor Kits, linear stepper motor, Dc motor, Brake stepper motor, Stepper motor with Encoder, Flexible Coupling, Pully, Power supply, Breakout Board and so on..



  • We offer one year warranty.
  • Within the warranty period, if your item has any problems when you use it, please send us an e-mail with photos or video to show the problem.
  • The replacement of the products for free are considerable due to it's own defects during warranty period.


Computer controlled stepper motors are a type of motion-control positioning system. They are typically digitally controlled as part of an open loop system for use in holding or positioning applications.

In the field of lasers and optics they are frequently used in precision positioning equipment such as linear actuators, linear stages, rotation stages, goniometers, and mirror mounts. Other uses are in packaging machinery, and positioning of valve pilot stages for fluid control systems.

Commercially, stepper motors are used in floppy disk drives, flatbed scanners, computer printers, plotters, slot machines, image scanners, compact disc drives, intelligent lighting, camera lenses, CNC machines and, more recently, in 3D printers.

Contact Details

Contact Person: Stacy

Tel: +8613776803450

Fax: 86-519-88713769

Send your inquiry directly to us (0 / 3000)


Address: Building A2,Hutang Industrial zone,Lingdao Rd,Wujin District,Changzhou,China.Zip:213162

Factory Address:Building A2,Hutang Industrial zone,Lingdao Rd,Wujin District,Changzhou,China.Zip:213162