120kg.cm RSBL120-24 Servo Motor, High Precision And Large Torque, Aluminum Alloy Case, With Programmable 360° Magnetic Encoder

SKU: 27165
Part Number: RSBL120-24
Brand: Waveshare




120kg.cm RSBL120-24 Servo Motor, High Precision And Large Torque, Aluminum Alloy Case, With Programmable 360° Magnetic Encoder, Multiple Operation Modes Switchable
120kg.cm RS485 metal Servo Motor

Aluminum Alloy Case, Brushless Motor, with 360° Magnetic Encoder

RSBL120-24 Servo Motor, front and back view
Product model RSBL120-24
Torque 120kg.cm@24V
Rotation angle 360° (0~4095)
Position sensor resolution 0.088° (360°/4096)
Mechanism limit angle No limit
Working voltage 9 ~ 24 V (typ. 24V)
Gear high precision steel gear (reduction ratio 1:232)
No-load speed 0.2sec/60degree 50RPM@24V
Encoder type 360° magnetic encoder
ID range 1 ~ 253 (1 by default)
Baudrate 38400bps ~ 1Mbps (1Mbps by default)
No-load current 200mA
Locked-rotor current 4A
Kt 30kg.cm/A
weight 485g
Feedback Position, Load, Speed, Input Voltage, Current, Temperature

Aluminum alloy case + CNC Processing

To improve the heat tolerance, size stability, rigidity, and mechanical performance of the case

RSBL120-24 Servo Motor, side view
Brushless Motor + Steel Gear Box

to ensure the strength and durability of servo motor power transmission

RSBL120-24 Servo Motor, side view
High Precision 360° Magnetic Encoder

Adopts 12-bit high-precision magnetic encoding angle sensor. Compared with the carbon film potentiometer, the angle of the magnetic encoder is enlarged to 360°, and the resolution is increased by 4 times. Since there is a gap and no friction between the magnetic encoder and the radial magnet, the motor lifetime is effectively extended.

RSBL120-24 Servo Motor, with high precision 360° magnetic encoder
Large Torque, easy to use

Up To 120kg.Cm Torque On 24V Voltage, Suitable For applications such as industrial equipments and robotics, etc. it is a ideal choice for Large torque solution projects

RSBL120-24 Servo Motor, with large torque, suitable for Robotic arms

Note: the robot arm in the picture above is not included, but we provide its open-source drawing on the wiki. Please refer to the Package Content for detailed part list

Acceleration Start-stop Function

The speed and acceleration values are settable to make the motion effect softer and reduce impact from inertia

One Button to Calibrate the Middle Position

360° installation at any position, one button to set the current position as middle position. Easy to install and debug

Click Release to unlock, then turn the servo motor to the middle position where you want to set

Click Set Middle Position then confirm.

Turn the servo motor to any angle, then click Middle, and the servo motor will automatically return to the middle position initially set.

Closed-loop feedback with real-time protection

The servo motor Will Provide Various Feedback Like Position, Load, Speed, Input Voltage, Current and Temperature In Real Time, with unloading force protection when the servo motor is overheated or overloaded

RSBL120-24 Servo Motor, supports closed-loop feedback with real-time protection
Multiple operation modes
suitable for more application scenarios

Angle servo mode
Default mode, the angle position is controllable at 0~360° degrees

Speed closed-loop mode
Intelligently control and maintain speed when the load changes

Step mode
Can perform step motion relative to the current position

Multi-Loop angle Position control

Supports angle position control in both positive and negative directions up to 7 loops under the default precision setting, but the number of loops will not be saved in case of power loss. Lowering the angle resolution can double the number of control loops

Usage Example

connecting with Bus Servo Driver HAT (A) drive board, we provide open-source control demo of the servo motor

RSBL120-24 Servo Motor, provides open source control program

* for reference only, please refer to the Package Content for detailed part list

Open Source Control Demos
RSBL120-24 Servo Motor, provides open source control program

interface definition
RSBL120-24 Servo Motor, interface definition

Outline dimensions
RSBL120-24 Servo Motor, outline dimensions
Resources & Services

* Resources for different product may vary, please check the wiki page to confirm the actually provided resources.

Product Selection
Product Voltage Control Method Precision NO-LOAD SPEED Continuous Rotation LOCKED-ROTOR TORQUE * LOCKED-ROTOR CURRENT Range Feedback
WP90 4.8 ~ 7.4 PWM ≤2° 0.1sec/60° - 2.3kg.cm 1.0A 180° -
SC09 4.8 ~ 8.4 TTL 300°/1024 0.1sec/60° 2.3kg.cm 1.0A 300°
SC15 4.8 ~ 8.4 TTL 180° / 1024 0.16 sec / 60° 15kg.cm 1.5A 180°
ST3020 6 ~ 14.0 TTL 360° / 4096 0.167sec / 60° 25kg.cm 2.7A 360°
ST3215 6 ~ 12.6 TTL 360° / 4096 0.222 sec / 60° 30kg.cm 2.7A 360°
ST3025 6 ~ 12.6 TTL 360° / 4096 0.117sec / 60° 40kg.cm 4.4A 360°
ST3235 6 ~ 12.6 TTL 360° / 4096 0.222sec/60° 30kg.cm 2.7A 360°
RSBL45-24 9.0 ~ 24.0 RS485 360° / 4096 0.142sec/60° 45kg.cm 2.3A 360°
RSBL85-12 9.0 ~ 12.0 RS485 360° / 4096 0.167sec/60° 85kg.cm 7.9A 360°
RSBL85-24 9.0 ~ 24.0 RS485 360° / 4096 0.154sec/60° 85kg.cm 5.6A 360°
RSBL120-24 9.0 ~ 24.0 RS485 360° / 4096 0.2sec/60° 120kg.cm 4A 360°

* the Locked-rotor torque is measured at the typical voltage of each servo, please refer to the documentation in the wiki for more details

Weight: 0.592 kg

Quick Overview

RSBL120-24 x1

RSBL120-24 Servo Motor