Description

DLF57 Planetary Gear Motor – Technical Specifications

1. Product Overview

• Product Model: DLF57 Planetary Gear Motor
• Product Type: Integrated Planetary Geared Stepper Motor
• Motor Frame Size: 57 mm × 57 mm (NEMA 23 Equivalent)
• Configuration: Hybrid Stepper Motor with Precision Planetary Gearbox
• Motor Phase: 2-Phase Hybrid Stepper Motor
• Application Category: Precision Motion Control and Industrial Automation
• Mounting Style: Flange Mounting
• Transmission Type: Coaxial Planetary Reduction Drive

2. Motor Specifications

• Step Angle: 1.8° ± 5%
• Holding Torque (Motor Only): 0.8 N·m – 3.0 N·m
• Rated Current: 2.0 A – 4.5 A / Phase
• Rated Voltage: 24 VDC / 36 VDC / 48 VDC
• Phase Resistance: 0.6 Ω – 2.8 Ω
• Phase Inductance: 1.8 mH – 8.5 mH
• Rotor Inertia: 280 – 850 g·cm²
• Insulation Resistance: ≥100 MΩ at 500 VDC
• Dielectric Strength: 500 VAC for 1 minute
• Insulation Class: Class B (130°C)

3. Planetary Gearbox Specifications

• Gearbox Type: Precision Planetary Gear Reducer
• Gear Stage Options: Single Stage / Two Stage / Three Stage
• Available Reduction Ratios:
  • 3:1
  • 4:1
  • 5:1
  • 7:1
  • 10:1
  • 15:1
  • 20:1
  • 30:1
  • 50:1
  • 100:1
• Gear Material: Vacuum-Hardened Alloy Steel
• Planet Gear Design: Multi-Tooth Simultaneous Engagement
• Gear Surface Treatment: Precision Ground and Heat Treated
• Gear Hardness: HRC 58–62

4. Output Performance

• Rated Output Torque: 5 N·m – 80 N·m
• Maximum Instantaneous Torque: Up to 150 N·m
• Transmission Efficiency:
  • Single Stage: ≥96%
  • Two Stage: ≥94%
  • Three Stage: ≥90%
• Backlash:
  • Single Stage: ≤12 arc-min
  • Two Stage: ≤15 arc-min
  • Three Stage: ≤18 arc-min
• Output Speed Range: 10 – 1000 RPM
• Repeat Positioning Accuracy: ±0.05°
• Torque Multiplication Factor: Corresponding to selected gear ratio

5. Shaft & Mechanical Structure

• Output Shaft Type: Round Shaft / D-Cut Shaft / Keyway Shaft
• Output Shaft Diameter: 10 mm / 12 mm / 14 mm
• Output Shaft Length: Customizable
• Input Coupling Method: Direct Integrated Connection
• Bearing System: Heavy-Duty Precision Ball Bearings
• Housing Material: High-Strength Aluminum Alloy
• Gearbox Housing Finish: Black Hard-Anodized Surface

6. Load Capacity

• Permissible Radial Load: ≤350 N
• Permissible Axial Load: ≤220 N
• Maximum Shock Load: Up to 300% of Rated Torque (Short Duration)
• Torsional Rigidity: High-Stiffness Transmission Design

7. Operating Environment

• Operating Temperature: -20°C to +50°C
• Storage Temperature: -30°C to +80°C
• Relative Humidity: 20% – 90% RH (Non-Condensing)
• Protection Rating: IP40 Standard
• Optional Protection Level: IP54
• Altitude Limit: ≤1000 m Above Sea Level

8. Lubrication & Service Life

• Lubrication Method: Maintenance-Free Synthetic Grease
• Gearbox Lubrication Cycle: Lifetime Lubricated
• Expected Service Life: ≥25,000 Hours
• Continuous Duty Capability: Suitable for 24/7 Industrial Operation

9. Control Compatibility

• Compatible Drivers:
  • Open-Loop Stepper Drivers
  • Closed-Loop Stepper Drivers
  • DSP Digital Drivers
• Pulse Input Modes:
  • Pulse/Direction
  • CW/CCW
  • Quadrature Signal Control
• Microstepping Compatibility:
  • Full Step
  • 2 Microstep
  • 8 Microstep
  • 16 Microstep
  • 32 Microstep
  • 64 Microstep
  • 128 Microstep

10. Typical Applications

• AGV Drive Systems
• Autonomous Mobile Robots (AMR)
• Precision Conveyor Equipment
• Automated Packaging Machines
• Semiconductor Manufacturing Equipment
• CNC Rotary Tables
• Pick-and-Place Systems
• Automated Inspection Platforms
• Smart Warehousing Equipment
• Medical Automation Devices
• Laser Processing Systems
• Industrial Material Handling Equipment
• Textile Machinery
• Electronic Assembly Equipment

Key Features

• Integrated motor and planetary gearbox design
• High torque output in a compact footprint
• Precision planetary transmission with low backlash
• Optimized for low-speed, high-load applications
• Stable operation with reduced vibration and noise
• Maintenance-free lubrication system
• Excellent positioning accuracy and repeatability
• Suitable for demanding industrial automation environments
• Multiple gear ratio options for flexible system design
• Long service life and high transmission reliability

Planetary Gear Motor
DLF57 Nema23
Technical Parameters(Unit :mm)
Scale	Single Stage					Twin-Stage								Triple Stage
L1 Length(mm)	42					57								71
Precision Ratio	3	4	5	7	10	16	20	25	28	35	40	50	70	64	80	100	125	140	175	200	250
Rated output torque(Nm)	16.5	27	29	19	8	30	30	33	30	33	30	33	21	37	37	37	41	37	41	37	41
Maximum output torque(Nm)	33	54	58	38	16	60	60	60	60	66	60	66	42	74	74	74	82	74	82	74	82
Moment of inertia	107%	94%	92%	91%	91%	94%	92%	92%	91%	91%	91%	91%	91%	92%	92%	92%	92%	91%	91%	91%	91%
Motor weight(KG)	0.8					1								1.2
Efficiency	≥95%					≥90%								≥87%
Rated input speed	3000rpm
Max input speed	4000rpm
Max. radial force	320N
Max. axial force	240N
Lubricating Oil	Long-lasting lubricating
Installation way	Any
Direction of rotation	Input and output are in the same direction
Operating temperature	(-15°C~80°C)
Life Expectancy(H)	20000H
L2 Length(mm)	59	83	115
Step angle	1.8°±5%
Phase No.	2
Rate Current	4.0A	4.0A	5.0A
Resistance	0.4ꭥ±10%	0.4ꭥ±10%	0.68ꭥ±10%
Rated Voltage	1.6V	1.6V	3.4V
Inductance	1.2mH±20%	2.0mH±20%	2.8mH±20%
Insulation Class	Class B(130°)
Holding Torque	1.2Nm	1.8Nm	2.8Nm
Lead style	UL 3266 22AWG