Ultra‑Thin Spring‑Applied Brake
Technical Parameters
| Model No. | Static Torque (N·m) | Over-excitation Output | Steady Excitation Output | Thermal Class | Max. Speed (r/min) | Moment of Inertia J (kg·m²) | Allowable Single Brake Work E₀ₐ (J) | Total Brake Work E_T (J) | Pull-in Time tₐ (ms) | Release Time tₐᵣ (ms) | Weight (kg) | ||||||
| Voltage (V) | Power (W) | Current (A) | Resistance (Ω) | Voltage (V) | Power (W) | Current (A) | Resistance (Ω) | ||||||||||
| 25SLE | 0.1 | 24 | 14 | 0.58 | 41.14 | 7 | 1.191 | 0.17 | 41.14 | F | 6000 | 8.89×10⁻⁸ | 0.17 | 34 | 40 | 25 | 0.03 |
| 35SLE | 0.2 | 24 | 12 | 0.5 | 48 | 7 | 1.02 | 0.146 | 48 | F | 6000 | 9.60×10⁻⁷ | 1.9 | 380 | 80 | 40 | 0.06 |
| 40SLE | 0.5 | 24 | 16.5 | 0.688 | 34.91 | 7 | 1.404 | 0.2 | 34.91 | F | 6000 | 1.50×10⁻⁶ | 2.9 | 580 | 80 | 40 | 0.12 |
| 45SLE | 1 | 24 | 16 | 0.67 | 36 | 7 | 1.36 | 0.194 | 36 | F | 6000 | 5.00×10⁻⁶ | 9.8 | 1960 | 80 | 40 | 0.16 |
| 50SLE | 2 | 24 | 24 | 1 | 24 | 7 | 2.041 | 0.29 | 24 | F | 6000 | 5.00×10⁻⁶ | 9.8 | 1960 | 80 | 40 | 0.2 |
| 100SLE | 3 | 24 | 31 | 1.291 | 18.58 | 7 | 2.637 | 0.377 | 18.58 | F | 6000 | 1.20×10⁻⁵ | 23 | 4600 | 120 | 60 | 0.6 |
| 110SLE | 5 | 24 | 30 | 1.25 | 19.2 | 7 | 2.552 | 0.364 | 19.2 | F | 6000 | 2.30×10⁻⁵ | 45 | 9000 | 120 | 60 | 0.8 |
| 130SLE | 8 | 24 | 24 | 1 | 24 | 8 | 2.67 | 0.33 | 24 | F | 6000 | 1.80×10⁻⁴ | 356 | 71200 | 120 | 60 | 1 |
| Model No. | Radial Dimension | Axial Dimension | Rotor Machining Size | |||||||||||||
| A Outer Dia. | B Mount Position Dia. | C Inner Bore | D Cover Inner Bore | dmax Shaft Hole | F Square Flat | S Notch Width | V Mount Hole | H Mount Thickness | K Stator Thickness | N Air Gap | a Square Thickness | L Square Thickness | D2 Outer Circle | F2 Square Flat | dmax Shaft Hole | |
| 25SLE | 39 | 33 | 16 | 18 | / | 12 | 5 | 2.2 | / | 9 | 4.5 | 0.1 | / | 15 | 12 | / |
| 35SLE | 48 | 44 | 26 | 28 | / | 16 | 5.5 | 2.7 | / | 9 | 4.5 | 0.1 | / | 18 | 16 | / |
| 40SLE | 56 | 50 | 26 | 28 | / | 19 | 5.5 | 2.7 | / | 9 | 4.5 | 0.1 | / | 24.5 | 19 | / |
| 45SLE | 66 | 61 | 34 | 37 | / | 24 | 6.5 | 3.4 | / | 10 | 5 | 0.1 | / | 26 | 24 | / |
| 50SLE | 71 | 65 | 37 | 37 | / | 28 | 6.5 | 3.4 | / | 13 | 6 | 0.1 | / | 36 | 28 | / |
| 100SLE | 83.5 | 76 | 43 | 47 | 28 | 35 | 10 | 4.5 | / | 15 | 7.9 | 0.2 | ≥4 | 42 | 35 | 28 |
| 110SLE | 93.5 | 86 | 47 | 61.6 | 30 | 38 | 10 | 4.5 | / | 16 | 8 | 0.2 | ≥4 | 46 | 38 | 30 |
| 130SLE | 123.5 | 115 | 65 | 83 | 36 | 45 | 10 | 4.5 | / | 18 | 9 | 0.2 | ≥4 | 55 | 45 | 36 |
-
Ultra‑Thin Spring‑Applied Brake
Only 8mm Thin – Purpose‑Built for Robot Joint Rotary Actuators
Why Do Rotary Actuators Need an Ultra‑Thin Spring Brake?
Rotary actuators in humanoid robots (shoulders, elbows, wrists) must lock instantly upon power loss or emergency stop to prevent unintended joint rotation, while releasing quickly when powered to maintain smooth motion. Conventional brakes, however, typically exceed 15mm in thickness—significantly crowding joint axial space, increasing overall length and weight, and restricting biomimetic design.
Our Ultra‑Thin Spring‑Applied Brake, with a minimum thickness of just 8mm, delivers an extremely compact braking solution for rotary actuators—reliable holding within limited space, without compromising torque or response speed.
Key Product Advantages
1. Extreme Thinness – As Slim as 8mm
Compared to conventional spring brakes (typically >15mm thick), our product achieves nearly 50% thickness reduction. For a humanoid robot with 15–20 braking joints, this translates into over 100mm of total axial length savings—freeing up valuable space for sleeker, more anthropomorphic designs.
2. Optimized for Rotary Actuators
Specifically engineered for robotic rotary joints that demand high‑frequency start‑stop and bidirectional rotation, the brake features optimized response time, release delay, and wear resistance—ensuring reliable performance under high‑speed rotation and frequent braking.
3. Lightweight – Reducing Joint Inertia
Through structural optimization and lightweight materials, we achieve minimal weight without sacrificing braking torque. Lower joint inertia translates into quicker start‑stop response, reduced energy consumption, and extended battery life.
4. Spring‑Applied – Fail‑Safe Power‑Off Locking
Designed with spring‑applied braking, electrically released (fail‑safe) mechanism, the brake automatically locks upon unexpected power loss—eliminating joint runaway risk, a core safety requirement for humanoid robots.
5. Low Noise & Long Service Life
Optimized friction materials and braking surfaces ensure low acoustic noise, suitable for quiet service robot environments. Braking pads are durability‑reinforced, supporting hundreds of thousands of cycles with extended maintenance‑free intervals.
Application Scenarios – Full Coverage for Rotary Actuators
Joint Application Key Value Shoulder rotation Ultra‑thin design saves axial space, enabling more natural shoulder contouring Elbow joint Lightweight construction reduces arm inertia for faster, more agile grasping Wrist rotation Slim profile frees up precious wrist space for force sensor integration Waist rotation Reliable locking prevents torso tilt during standby Comprehensive Benefits Over Conventional Brakes
-
Axial space savings: Thickness reduced from 15mm+ to 8mm – more compact joints, slimmer overall robot
-
Weight reduction: Tens of grams saved per joint – cumulative effect significantly improves energy efficiency
-
Simplified assembly: Standardized mounting interface – quick installation without complex adjustments
-
Enhanced safety: Fail‑safe power‑off locking meets humanoid robot safety standards
Customization Services – Tailored to Your Joint Architecture
Every humanoid robot has unique spatial and load requirements. We offer flexible customization options:
-
Thickness: Adjustable within 8–15 mm range
-
Torque: Tailored to your joint load demands
-
Mounting interface: Customized to fit different actuator flanges
-
Voltage: Multiple voltage options available
From selection to mass production, we provide full technical support to accelerate your product development.
Key Technical Specifications
Parameter Specification Minimum thickness 8 mm Braking mechanism Spring‑applied (power‑off locking) / electrically released Standard voltage 24V DC (customizable) Application Robot rotary actuators Acoustic noise Low‑noise design Service life Hundreds of thousands of cycles – maintenance‑free
For detailed 2D/3D drawings, sample testing, or technical consultation, please contact us anytime.
-
-
Humanoid Robot Absolute Inductive Encoder T031
Model Parameters Table Model No. Repeatability Stator Board Motor-side Rotor Code Disk Reducer-side Rotor Code Disk Single/Multi-turn Communication Protocol Resolution Inner/Outer Dia. (mm) Thickness (mm) Inner/Outer Dia. (mm) Thickness (mm) Inner/Outer Dia. (mm) Thickness (mm) T027-1719RW-C1 ±10 ... -
TS series Planetary Gearbox
TS Series Planetary Gearbox Product Features – High-Precision Planetary Gearbox High Torque & Rigidity Needle roller bearings deliver exceptional torque capacity and structural rigidity. High Precision Backlash as low as 90% for two-stage configurations. Universal Motor Compatibility Easily ... -
TDR Series Right-Angle Planetary Gearbox
TDR Series Right-Angle Planetary Gearbox Right-Angle Planetary Gearbox – Spiral Bevel Gear Design Space Saving Spiral bevel gear design enables right-angle installation, ideal for tight spaces Flange Output Flange output design for easy mounting and high rigidity High Precision Backlash as low as 90... -
TD Series Compact Flange Output Planetary Gearbox
TD Series Compact Flange Output Planetary Gearbox Compact Flange Output Planetary Gearbox – Helical Gear Design Flange Output Compact flange output design for easy mounting and high rigidity High Precision Backlash as low as 90% for two-stage configurations High Torque Capacity Average output torque ...
