NEMA23 PR57HS51-2804 10.1kg-cm Stepper Motor-Round Type Shaft
NEMA23 PR57HS51-2804 10.1kg-cm Stepper Motor-Round Type Shaft
NEMA23 PR57HS51-2804 10.1kg-cm Stepper Motor-Round Type Shaft
The NEMA23 PR57HS51-2804 is a precision stepper motor engineered for industrial automation, CNC machinery, and robotic applications requiring reliable torque output of 10.1 kg-cm. This round shaft variant is widely adopted by automation engineers, manufacturing technicians, and embedded systems developers who demand consistent positional accuracy and repeatability in their motion control systems. The motor solves critical challenges in applications requiring precise angular displacement without feedback mechanisms, delivering deterministic motion control for complex multi-axis systems.
Product Overview
The NEMA23 PR57HS51-2804 stepper motor operates on the principle of electromagnetic coil energization to produce rotational motion through discrete angular steps. The motor features a hybrid stepper design combining permanent magnet and variable reluctance technologies, enabling high holding torque and excellent step accuracy. The round type shaft design provides direct coupling compatibility with standard mechanical components, eliminating the need for shaft adapters in most industrial configurations. With 200 steps per revolution in full-step mode, this motor delivers exceptional resolution for applications requiring smooth, controlled motion across multiple axes simultaneously.
What distinguishes this NEMA23 model is its optimized 10.1 kg-cm torque rating, which balances power delivery with thermal efficiency for continuous industrial operation. The motor's construction incorporates precision-machined rotor components and high-quality stator windings that maintain performance consistency across extended operational cycles. The round shaft configuration enables seamless integration with flexible couplings, timing pulleys, and direct load mounting, making it ideal for retrofit applications and new system designs. Its compact footprint relative to torque output makes it the preferred choice for space-constrained automation environments.
Key Specifications
| Specification | Details |
| Product Type | NEMA23 Hybrid Stepper Motor Round Shaft |
| Model Number | PR57HS51-2804 |
| Holding Torque | 10.1 kg-cm |
| Step Angle | 1.8 degrees full step, 0.9 degrees half step |
| Steps Per Revolution | 200 full steps, 400 half steps |
| Shaft Type | Round type with flat |
| Shaft Diameter | 8mm |
| Frame Size | NEMA23 57mm x 57mm |
| Winding Configuration | Bipolar 4-wire |
| Rated Current | 2.8A per phase |
| Resistance Per Phase | 1.2 ohms |
| Inductance Per Phase | 3.8mH |
| Motor Length | 51mm |
| Operating Temperature Range | -20 to +50 degrees Celsius |
| Insulation Class | Class B |
| Origin | Original/Authentic |
| Warranty | 7 days on manufacturing defects |
| Shipping | 1-5 days from Bengaluru |
| Delivery | 7-8 days across India |
| Support | 24/7 via Email and WhatsApp |
Key Features
- 10.1 kg-cm holding torque delivers powerful motion control for heavy load positioning and holding applications without power consumption
- 1.8 degree step angle provides 200 steps per revolution enabling smooth motion profiles and precise incremental positioning without intermediate feedback
- Round shaft design with 8mm diameter and flat facilitates direct coupling to timing pulleys, flexible couplings, and mechanical transmission components
- Bipolar 4-wire configuration enables efficient drive with standard microstepping controllers and dual H-bridge motor driver circuits
- Compact 57mm NEMA23 frame with 51mm motor length optimizes space utilization in multi-axis automation systems and confined installation areas
- Low phase resistance of 1.2 ohms per coil enables high-speed operation while maintaining thermal stability during extended runtime cycles
Applications and Use Cases
- CNC Machine Tool Automation: Precision XYZ axis control for milling machines, laser cutters, and engraving systems requiring deterministic step positioning without servo feedback
- 3D Printer Motion Systems: Reliable extrusion head and build platform movement for FDM printers demanding consistent layer accuracy and repeatable print quality
- Industrial Conveyor Systems: Load positioning and indexing on automated assembly lines where synchronized multi-motor operation requires phase-locked step coordination
- Laboratory Automation Equipment: Sample positioning, pipette arm movement, and analytical instrument control requiring precise repeatable motion with minimal maintenance
- Robotic Arm Joint Actuation: Secondary axis control for collaborative robots and industrial manipulators requiring moderate torque with high step resolution
- Textile and Print Equipment: Fabric feed control, pattern positioning, and registration mechanisms in automated weaving and printing machinery
How to Use
To integrate the NEMA23 PR57HS51-2804 into your automation system, first establish secure mechanical coupling between the round shaft and your driven load using an appropriately sized flexible coupling or timing pulley with 8mm bore. Connect the four motor leads to your stepper driver circuit observing correct phase sequencing: typically coil A and coil B connections are identified by wire color coding or continuity testing. Configure your motor controller with 1.8 degree step angle parameters and set current limiting to 2.8A maximum per phase to prevent thermal damage during extended operation. Implement microstepping firmware if smooth motion is critical, as half-stepping or quarter-stepping dramatically reduces vibration and audible noise compared to full-step operation.
For optimal performance, supply regulated DC voltage between 12V and 24V to your stepper driver circuit, allowing adequate current capacity for rapid acceleration profiles. Mount the motor with proper mechanical alignment to minimize shaft runout and coupling stress, which extends bearing life and maintains positional accuracy over thousands of operational cycles. Implement thermal monitoring for continuous operation above 1 hour duration, ensuring adequate ventilation around the motor body to maintain winding temperature below 80 degrees Celsius. Test your system with slow speed profiles initially to verify correct phase sequencing and load coupling integrity before deploying full-speed operation.
Frequently Asked Questions
What is the maximum stepping frequency for this NEMA23 motor?
The PR57HS51-2804 can reliably execute step commands up to approximately 3000 steps per second in full-step mode without load, depending on your driver circuit design and power supply voltage. With mechanical load applied, maximum stepping frequency reduces proportionally based on load inertia and torque requirements. For smooth acceleration profiles, implement ramping algorithms that gradually increase step frequency over 100-500ms to prevent missed steps during motor startup.
Can I operate this motor in continuous rotation mode like a DC motor?
Yes, the NEMA23 stepper can operate in continuous rotation by sequencing coil energization patterns at constant frequency, effectively functioning as a synchronous motor. However, stepper motors are optimized for step-and-hold operation rather than continuous rotation. Continuous operation generates significant heat due to constant coil current, requiring active cooling for extended runtime. For true continuous rotation applications, consider dedicated brushless DC motors which offer superior efficiency and thermal characteristics.
What holding torque value should I expect after power removal?
The 10.1 kg-cm specification represents holding torque with coils energized in detent position. After power removal, the motor retains minimal residual torque from permanent magnet components, approximately 15-20% of rated holding torque. For applications requiring load holding after power loss, implement mechanical brakes or locking mechanisms independent of motor energization. This ensures safety compliance in vertical lift applications and prevents unintended load drift.
How do I prevent missed steps and ensure positional accuracy?
Missed steps occur when acceleration demands exceed motor torque capacity or when step frequency exceeds motor response capability. Prevent missed steps by: implementing gradual acceleration ramps limiting acceleration to 500-1000 steps/second squared, verifying adequate driver current supply matching motor specifications, minimizing mechanical load inertia through proper coupling selection, and implementing closed-loop feedback using limit switches or encoders for critical applications. Test your system under worst-case load conditions before production deployment.
When will I receive my order?
Orders are dispatched within 1-5 business days from our Bengaluru warehouse. Delivery takes 7-8 days to most locations across India.
What is your return and warranty policy?
We offer a 7-day return policy on manufacturing defects only. Contact support within 7 days of receipt for free replacement or full refund. Not applicable for user damage or misuse.
Are bulk discounts available?
Yes, wholesale pricing for orders of 10 or more units. Contact our sales team via WhatsApp or email for a customized bulk quote.
Why Buy from The Tech Depot
- Genuine Products: Sourced directly from authorized distributors with authentication
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- Fast Shipping: Dispatched within 1-5 days from our Bengaluru warehouse
- Pan-India Delivery: 7-8 days to Mumbai, Delhi, Chennai, Hyderabad, Pune, Kolkata
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- Technical Support: 24/7 expert guidance via email and WhatsApp
- Returns: 7-day return policy on manufacturing defects only
Buy NEMA23 PR57HS51-2804 10.1kg-cm Stepper Motor-Round Type Shaft Online in India
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