Huizhou Pengchengrui Technology Co., Ltd.

A flexible rope made by twisting multiple strands of Nitinol alloy monofilaments, while also possessing:

The unique superelasticity/shape memory effect of nickel titanium alloy+high flexibility, bending resistance, torsion resistance, and fatigue resistance of multi strand steel wire rope; Different from a single nickel titanium straight wire, it is more suitable for scenarios where reciprocating bending is required and tension and torque need to be transmitted.

Alloy standard composition: Ni 54.5% to 57.0%, with a balance of Ti (medical grade according to GB 24627 and ASTM F2063).

Nickel titanium rope combines super elasticity, fatigue resistance, flexibility, corrosion resistance, and some specifications have shape memory function. It is divided into three major application tracks: medical implant level, medical extracorporeal device level, and industrial universal level

1、 Medical devices (core application)

(1)Orthopedic field

• Binding and fixing cables for patellar, ulna, and clavicle fractures;

• Spinal surgery binding cables and vertebral plate fixation cables;

• Ligament reconstruction, tendon fixation and tension wire;

Advantages: High elasticity, less stress shielding during bone micro movements, and resistance to reciprocating bending fatigue.

(2)Minimally invasive interventional instruments

• Endoscopic control traction cable and catheter built-in drive rope;

• Trap, polyp ligation line, stone retrieval basket core rope;

• Vascular intervention assisted traction, controllable guidewire flexible core;

Features: Ultra fine nickel titanium rope, repeatedly bent without plastic deformation.

(3)Oral and Orthodontics

Orthodontic traction cable and periodontal fixation ligation cable;

Fixation and binding rope for jawbone fracture.

(4)Other medical devices

Minimally invasive anastomosis instrument transmission cable, soft tissue suspension wire;

Important reminder: Medical grade nickel titanium alloy rope (ASTM F2063) must be used for implantation in the human body, with electrolytic polishing and low hydrogen control.

2、 Robots and Intelligent Equipment

• Soft robots and biomimetic robotic arms drive tendon cables (biomimetic muscle cables);

• Flexible transmission ropes for micro robots and pipeline robots;

Shape memory driving mechanism: heating and contraction pulling structure, achieving lightweight driving.

Nickel titanium alloy rope

3、 Aerospace

• Spacecraft deployable mechanism cables and flexible locking cables;

• Flexible traction cable for aviation sensors;

Advantages: Lightweight, corrosion-resistant in space environment, and resistant to cross deformation and fatigue.

4、 Marine and Deep Sea Equipment

• Flexible control cable for seawater environment, underwater sensor traction rope;

• Underwater actuator transmission cable;

Compared to stainless steel cables, they have stronger resistance to seawater corrosion and alternating bending fatigue.

5、 Automated precision equipment

• Flexible cables for reciprocating motion of precision instruments and optical equipment;

• Transmission cables for small valves and precision actuators;

Suitable for mechanisms that undergo continuous repeated bending and do not allow permanent deformation.

6、 Consumer&Specialty Industries

• Intelligent wearable micro drive cable;

• Vibration damping suspension flexible cable;

• Special fishing gear, corrosion-resistant high-strength flexible cable (niche);

Selection differentiation

• Super elastic nickel titanium rope: for the vast majority of medical devices and flexible transmission scenarios (used at room temperature, rebound without deformation)

• Shape memory nickel titanium rope: a driving mechanism that requires electricity/heating to achieve contraction and pulling

• Ultra fine specification (0.06-0.5mm): interventional instruments;

• Coarse size (0.8-5mm): Orthopedic fixation, industrial transmission

Huizhou Pengchengrui specializes in supplying nickel titanium alloy ropes, achieving integrated production from raw materials to finished products. The product combines the advantages of super elasticity, fatigue resistance, and corrosion resistance, and is widely used in fields such as orthopedic instruments, minimally invasive interventions, oral medicine, soft robots, aerospace, and deep-sea equipment. We can customize different twisting structures, specifications, and surface processes to meet the diverse needs of medical implants and industrial precision transmissions.