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The 86 mm stepper motor is manufactured with high-precision machining and premium magnetic materials, delivering a standard 1.8° step angle and supporting up to 204,800 steps per revolution via microstepping. An optional 24-bit absolute encoder is available, meeting the stringent accuracy requirements of CNC machining and precision measurement equipment.
| Quantity: | |
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Parameter | Core Specification |
Motor Type | 2-Phase Hybrid Stepper Motor |
Standard Flange Size | 86×86 mm (NEMA34) |
Step Angle | 1.8° (Standard) |
Body Length Range | 67 mm – 155 mm |
Holding Torque Range | 3.4 N·m – 12.2 N·m |
Phase Current Range | 2.8 A – 6 A |
Number of Leads | 4 / 8 (Optional) |
Ambient Operating Temperature | -20℃ ~ +50℃ |
Maximum Temperature Rise | ≤80℃ |
Electrical Specifications | ||||||||||
Model No. | Step Angle（°） | Motor Length (L)mm | Current /Phase（A） | Resistance /Phase（Ω） | Inductance /Phase（mH） | Holding Torque（N.m） | # of Leads（No.） | Detent Torque（Kg.cm） | Rotor Inertia（g.cm²） | Weight（Kg） |
SLT86HS68-5904 | 1.8 | 67 | 5.9 | 0.28 | 1.7 | 3.4 | 4 | 0.8 | 1000 | 1.7 |
SLT86HS68-2808 | 1.8 | 67 | 2.8 | 1.4 | 3.9 | 3.4 | 8 | 0.8 | 1000 | 1.7 |
SLT86HS78-5504 | 1.8 | 78 | 5.5 | 0.46 | 4 | 4.6 | 4 | 1.2 | 1400 | 2.3 |
SLT86HS78-4208 | 1.8 | 78 | 4.2 | 0.75 | 3.4 | 4.6 | 8 | 1.2 | 1400 | 2.3 |
SLT86HS97-4504 | 1.8 | 97 | 4.5 | 0.66 | 3 | 5.8 | 4 | 1.7 | 2100 | 3 |
SLT86HS97-4008 | 1.8 | 97 | 4 | 0.98 | 4.1 | 4.7 | 8 | 1.7 | 2100 | 3 |
SLT86HS100-6004 | 1.8 | 100 | 6 | 0.36 | 2.8 | 7 | 4 | 1.9 | 2200 | 3.1 |
SLT86HS115-6004 | 1.8 | 115 | 6 | 0.36 | 6.5 | 8.7 | 4 | 2.4 | 2700 | 3.8 |
SLT86HS115-4208 | 1.8 | 115 | 4.2 | 0.9 | 6 | 8.7 | 8 | 2.4 | 2700 | 3.8 |
SLT86HS126-6004 | 1.8 | 126 | 6 | 0.58 | 6.5 | 6.3 | 4 | 2.9 | 3200 | 4.5 |
SLT86HS155-6004 | 1.8 | 155 | 6 | 0.68 | 9 | 13 | 4 | 3.6 | 4000 | 5.4 |
SLT86HS155-4208 | 1.8 | 155 | 4.2 | 1.25 | 8 | 12.2 | 8 | 3.6 | 4000 | 5.4 |
Above only for representative products, products of special request can be made according to the customer request. | ||||||||||
Our 86mm NEMA34 DC Stepper Motor is a heavy-duty 2-phase hybrid stepper motor, purpose-built for high-load, high-precision motion control in demanding industrial environments. Featuring a standard 86×86 mm flange design, body lengths ranging from 67 mm to 155 mm, and a standard 1.8° step angle, this motor delivers industry-leading torque output and exceptional positioning accuracy. With optional closed-loop control technology, it achieves step angle accuracy up to 0.01°, making it the preferred motion solution for heavy industrial equipment manufacturers and large-scale automation system integrators.
Through optimized magnetic circuit design and high-performance rare-earth magnets, this high-torque NEMA34 stepper motor delivers a holding torque range of 3.4 N·m to 12.2 N·m, with peak torque reaching 18 N·m. Its torque density is improved by approximately 40% compared with conventional stepper motors, ensuring stable power transmission even under continuous heavy-load operation.
Manufactured with high-precision machining and premium magnetic materials, it supports up to 204,800 steps per revolution via microstepping, with an optional 24-bit absolute encoder to meet the stringent accuracy requirements of CNC machining and precision measurement equipment. Closed-loop configuration eliminates step loss, ensuring consistent positioning accuracy in high-speed, high-load scenarios.
Engineered for extreme industrial conditions, it operates reliably in an ambient temperature range of -20℃ to +50℃, with a maximum surface temperature rise of 80℃. It features 100MΩ minimum insulation resistance at 500VDC, 820VAC dielectric strength for 1 second, and enhanced mechanical load capacity: maximum radial force of 220N (20mm from the flange) and maximum axial force of 60N, far exceeding standard stepper motor specifications.
Compared with conventional stepper motors, this 2-phase hybrid stepper motor improves torque output across the full speed range by 25% to 40%, maintaining stable torque even at high operating speeds. It eliminates torque drop at medium and high speeds, making it ideal for continuous operation in automated production lines.
This 86mm NEMA34 DC Stepper Motor is widely used in heavy industrial sectors, including CNC machining centers, heavy automation systems, industrial robotic arms, engraving machines, laser cutting equipment, lithium battery production lines, textile machinery, and large-scale packaging equipment. Its heavy-load capacity and high precision make it ideal for demanding industrial motion control applications.
We provide end-to-end customization services to match your heavy-load project requirements. Our engineering team supports custom winding designs, torque output adjustments, closed-loop encoder integration, matched gearboxes and drive controllers, as well as custom mechanical dimensions and connector configurations. We also offer dedicated OEM support for mass production, ensuring full alignment with your industrial equipment design standards.
Mount the motor via the standard NEMA34 flange, ensuring rigid fixation and concentric alignment with the load to avoid excessive radial or axial stress; do not exceed the maximum 220N radial force and 60N axial force limits.
Connect the 4 or 8 motor leads strictly according to the provided wiring diagram, ensuring correct phase sequence matching to prevent step loss, overheating, or motor damage.
Ensure adequate clearance around the motor body for heat dissipation, and verify that the mounting surface is flat and vibration-free to maintain long-term positioning accuracy.
The standard sample MOQ is 3 units, with a standard lead time of 15 days; expedited production is available for urgent project timelines.
Yes, we offer optional closed-loop control with 24-bit absolute encoders, as well as matched drive controllers to eliminate step loss and improve positioning accuracy.
First, check the switching frequency of the drive system, verify that the motor power matches the load requirements, and inspect the braking system functionality. Our technical team can provide targeted optimization solutions.
Whether you are a heavy industrial equipment manufacturer, large-scale automation system integrator, or OEM, our motion control engineering team is ready to deliver a customized 86mm NEMA34 DC Stepper Motor solution for your heavy-load application. Contact us today for a detailed quote, free technical consultation, and fast sample delivery to elevate your industrial motion control performance.
