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The Advantages Of Carbon Fiber Robot Arms

The robotic arm is an important part of the robot and is a mechanical automation device. The basic function of the robotic arm is to guide the gripper to accurately grasp the spare parts to the desired position and to bear the arm’s own weight and the maximum weight of the grasped workpiece. Now some robotic arms are favored. For the use of carbon fiber materials, in this article, let’s take a look at the advantages of carbon fiber robotic arms.  

The Advantages Of Carbon Fiber Robot Arms

The robot arm is a typical cantilever beam structure, and its own quality will have a certain impact on the robot arm itself.

Therefore, if you want to reduce the weight of the robot arm while satisfying the static and dynamic performance, choose the appropriate Material is particularly important. Carbon fiber is an excellent weight-saving material. Its density is only 1.7g/cm3, which is less than 1/4 of steel. It is a new type of weight-saving material.

The birth of industrial robots can solve many tasks that are difficult to complete manually and free workers from boring repetitive actions.

If you want the robot to work without any problems, you need to have high requirements for load-bearing capacity and operating accuracy during design. The introduction of carbon fiber composite materials can solve many of this problem. Let’s take a look at the advantages of carbon fiber robot arms.

Light Weight: Low Energy Consumption And High Production Efficiency

The robotic arm is driven by electric energy. If you want to save energy, the dead weight of the robotic arm must not be too large, and the dead weight and inertia of the robotic arm should be small, making it easier to operate. If you want to improve the efficiency of the robot arm, you naturally have to work hard on the materials used. The density of carbon fiber composite materials is only 1/3 of steel and 30% lighter than aluminum alloy. Such huge advantages make carbon fiber robotic arms possible.

High Strength: Multiple Loads And Diversified Functions

The advantage of lightweight robotic arms cannot exist alone, because lightness alone is not sufficient; it also needs to be strong so that it can carry more loads. The tensile strength of a robotic arm made of better-grade carbon fiber composite materials can reach more than 3500MPa, which is 7-9 times that of steel, and can carry a much higher weight than steel and aluminum alloys. Take a carbon fiber robot arm once produced by Wuxi Zhishang New Materials as an example. The arm thickness is only 5MM and the diameter is 18cm, but it can carry up to more than 100 kilograms of instruments and equipment. This high load-bearing performance gives the robot diversification. Possibility of functional direction development.

Small Creep: High Precision And Strong Adaptability

When the robotic arm works for a long time, it may deform, which is also a problem often encountered by traditional steel or aluminum robotic arms. To overcome this problem, we still have to find a way from the raw materials. The carbon fiber robotic arm has good creep resistance, barely produces any deformation when faced with thermal expansion, and can work stably in environments with large temperature differences. For industrial workshops in severe cold, hot and other weather conditions, carbon fiber robotic arms are a good choice.

Fatigue Resistance: Long Life, Low Cost Of Use

There are requirements for the working environment of the robot arm. Otherwise, the robot arm will have already started to age and be damaged before the working time is long. At this point, carbon fiber composite materials have better fatigue resistance, coupled with certain impact resistance and acid and alkali aging resistance, making the use of carbon fiber robotic arms more convenient, not only saving the cost of later replacement, but also reducing Difficulty of routine maintenance.

As mentioned at the beginning, the mechanical arm not only has to bear its own weight, but also needs to bear the maximum weight of grasping the workpiece, so that strain and fracture cannot occur. The specific stiffness is better than that of most structural materials, and the load-carrying performance is outstanding, effectively meeting the needs of the use strength.  

China Be-cu Prototype Material Technology Co., Ltd. has a production workshop of more than 5,000 square meters, with large-scale hot presses, autoclaves, hydraulic forming tables, CNC high-speed milling machines and other large-scale equipment, dedicated to bringing high-quality carbon fiber to customers. Products, related carbon fiber products have been exported to Europe and the United States and other countries for a long time.

These 4 advantages of carbon fiber robotic arms are beyond the reach of steel and aluminum robotic arms. The birth of new materials has given rise to new options for industrial production. This is the power of technology.


ISO 9001 certified. BE-CU Prototype Offering CNC machining carbon fiber and other manufacturing services for carbon fiber marterial. Various capabilities include notching, labeling, drilling carbon fiber, grinding, laser cutting carbon fiber, finishing, plating, marking, CNC milling carbon fiber and turning carbon fiber.We stock high quality 3k carbon fiber sheet in a variety of thickness, types and finish. Its a great material used in applications where light weight and strength are needed such as drones. Unlike other workshops, we have no min order and are often filling orders with a single part. We also don’t make you pay for the full sheet and you only get charged for what is used. With a large selection of material, you should find everything you need to make your project come to life. We are also able to handle larger production runs and provide a competitive pricing. If we don’t have the material or finish you require, we are more the willing to look at bringing it in for you.