In the pelletizing machine of modified plastic equipment, the rubber roller (commonly referred to as the "traction roller") is the core traction component. Its primary function is to work in tandem with the steel roller to securely grip the plastic cast strip, ensuring stable conveyance into the cutting zone—while simultaneously cushioning vibrations and preventing material slippage or adhesion.

Core Role

01. Stable Traction
The rubber roller and steel roller (or fixed roller) form a pressure gap (typically 0.1–0.3 mm), through which frictional force pulls the cooled, solidified plastic strip into the cutting chamber at a constant speed, preventing uneven particle distribution caused by material buildup or random cutting—such as in the case of ABS bundle strip cutting.
For the high-temperature stickiness characteristics of modified plastics (such as EVA and TPR), the rubber rollers are made from high-temperature-resistant, modified rubber. Their surface features a high-frequency micro-texture design that minimizes material adhesion while effectively absorbing cutting vibrations, thereby preventing thread breakage.
02. Adjusting Friction
Adapting to the friction of different materials, while simultaneously controlling the rubber roller speed in sync with the cutting blade, ensures that the traction speed matches the cutting frequency, thereby minimizing particle trailing or diamond-shaped slicing.

Hai Chang Rubber Roller
Anhui Haichang Intelligent Machinery Co., Ltd. has been deeply engaged in this field for over a decade. Our company's rubber rollers boast excellent quality and can meet the production requirements of most customers.

01. Appearance and Structure
Cylindrical structure with a smooth, even surface, free of noticeable defects such as imperfections or bubbles.
At the center is a metal shaft core, tightly integrated with the outer-layer rubber roller material to ensure structural stability. This design effectively prevents failures caused by structural loosening during high-speed operation and pellet-cutting tasks, guaranteeing stable equipment performance.

02、Material Properties
The outer layer of the rubber roller is made from high-quality rubber, offering exceptional wear resistance. This ensures it can withstand the frequent contact and friction with materials and cutting blades during the pelletizing process, significantly extending its service life while reducing equipment downtime and replacement costs caused by roller wear.
At the same time, it boasts excellent elasticity and toughness, allowing it to adapt to the production needs of modified plastic pellets with varying particle sizes and hardness levels during compression and material conveyance. This ensures both efficient material transport and precise cutting into uniform granules, while also minimizing the risk of damage to the cutting blades—or even the equipment itself—caused by rigid contact.

03、Performance Advantages
In the pelletizing process, this rubber roller exhibits precise dimensional stability; even after prolonged use and under varying temperature conditions, parameters such as diameter and cylindricity change minimally, ensuring a consistent pelletizing gap. This results in plastic pellets of uniform size and neat appearance, ultimately enhancing product quality.
Its excellent chemical resistance allows it to withstand the corrosive effects of various additives and solvents commonly used in modified plastic production, preventing issues such as swelling or deformation. This makes it highly compatible with a wide range of modified plastic formulation scenarios—whether for reinforcement, flame retardancy, toughening, or other types of plastic processing—ensuring stable and reliable performance in all applications.

04. Applicable Scenarios and Value
Widely applicable to various modified plastic pelletizing production lines, it efficiently supports both the modification of general-purpose plastics (such as PP and PE) and the pelletizing processing of engineering plastics (such as PA and PC).
High-quality granulation machine rubber rollers can enhance granulation efficiency, reduce the rate of defective particles, and help companies lower production costs while boosting their product market competitiveness. They are a critical component in modified plastic machinery equipment, ensuring continuous production and superior product quality—enabling businesses to achieve efficient and stable operations in the field of plastic modification processing.