Huizhou Pengchengrui Technology Co., Ltd.

Nickel titanium alloy tubes, with their shape memory effect, superelasticity, high fatigue life, and biocompatibility, have become the core flexible/driving/structural materials for medical, soft, micro, industrial/aerospace robots, especially suitable for minimally invasive, biomimetic, precision, and extreme environmental scenarios.

1、 Core Features

Shape memory effect (SME): Heating/electrification triggers martensitic austenite transformation, restoring the preset shape, and can be used as a thermal/electric driven actuator.

Super elasticity (pseudo elasticity): can withstand 8%+strain at room temperature and rebound 100% after unloading, suitable for flexible joints, continuous skeleton, and passive buffering.

High fatigue and corrosion resistance: With a cycle life of over 1 million times, it is resistant to biological fluids/seawater corrosion and has good biocompatibility.

Lightweight: No gears/motors, reducing weight by over 30%, suitable for micro/portable robots.

Nickel titanium alloy tubes

2、 Medical robots

(1)Minimally invasive intervention/surgical robot (single hole/endoscope/vascular)

Continuum Serpentine Arm/Operator: A super elastic nickel titanium tube serves as the central skeleton/driving rod, achieving multi degree of freedom bending and adapting to single port laparoscopic, oral/urethral surgeries. It is driven by both thrust and tension, significantly improving load and reliability.

Vascular/neural intervention microrobot: Thin walled nickel titanium tube (wall thickness ≤ 0.05mm) serves as a flexible guiding/driving body, with a diameter of 0.5-1mm, capable of crossing cerebral blood vessels and coronary artery stenosis, used for thrombus removal, drug delivery, and arterial aneurysm embolization.

Endoscopic robot: nickel titanium tube for flexible mirror body/curved joint, large angle steering, stress free rebound, suitable for gastrointestinal/respiratory endoscopy.

(2)Biomimetic medical actuators

Mechanical arm/gripper: nickel titanium tube embedded in the finger joint, can shrink and drive bending at a temperature of 2 ℃, no gears, no noise, low power consumption, reduces weight by 31%, and increases lifespan by 3 times.

Temperature control/passive valve: using body temperature/liquid temperature to trigger phase change, automatic switch, used for flow control of infusion pumps and interventional devices.

3、 Software/Biomimetic Robots

Continuum biomimetic arm (elephant trunk/octopus tentacle): The nickel titanium tube serves as the central elastic skeleton, coupled with driving wires to achieve 3D flexible bending, used for space debris capture, industrial exploration and maintenance, and disaster rescue.

Creeping/Earthworm Robot: Nickel titanium tube+soft substrate, electrically heated to contract and electrically heated to relax, mimicking earthworm crawling, capable of moving within pipelines/debris, impact resistant, and recoverable.

Biomimetic fly catching/gripping mechanism: a woven structure of multiple nickel titanium tubes, which can quickly close when powered on, achieving two-dimensional/three-dimensional grasping and wrapping.

4、 Micro/special robots

Micro pipeline/inspection robot: nickel titanium pipes are used as flexible drivers and supports to inspect and operate in narrow pipelines, engine interiors, and gaps in aviation structures.

Aerospace/deep space robots: Nickel titanium tubes are used for joint drive, thermal deformation compensation, and sampling arms. They can withstand extreme temperatures of -60 ℃~80 ℃, with a positioning accuracy of ± 0.1mm and a lifespan of over 100000 times.

5、 Industrial/Collaborative Robots

Flexible joints and cushioning: replacing traditional springs/bearings, providing super elastic cushioning, enhancing human-machine cooperation safety and flexibility.

Precision micro actuator: used for micro assembly, optical focusing, sensor fine-tuning, with fast response, high accuracy, and no wear.

6、 Application Trends

Thin walled high-precision: Ultra thin tubes with a wall thickness of 0.02-0.1mm and an inner diameter of 0.1-1mm, suitable for sub millimeter level medical microrobots.

Intelligent Drive: Combining electric heating and magnetic control to achieve precise, fast, and wireless driving.

Bionics and software integration: it is combined with PDMS and hydrogel to create a fully flexible and adaptive robot system.

Huizhou Pengchengrui, a professional manufacturer of nickel titanium alloy pipes! Starting from smelting, we offer customization and deep processing throughout the entire industry chain, providing integrated services for deep processing and product molding, eliminating the need for multiple factories to connect and enabling your projects to land faster.