Rubber and Plastic Production Equipment
Established in 1990, We are a professional manufacturer engaged in the research, development, production, sale and service of Rubber Accelerator, Antioxidant and other Rubber chemicals in int'l market.
Why Choose Us
World-wide expertise
We know international markets and trends. Our expertise, experience and network cover all corners of the world.
Competitive Price
We have professional sourcing team and cost accounting team, stive to reduce cost and profit and provide you a good price.
We always deliver on time
We genuinely understand the value of time in business and hence adhere to time and deliver all projects on time to our customers.
Customer Satisfaction
Providing after-sales services can enhance customer satisfaction by ensuring that customers' needs are met even after the purchase. This can lead to increased customer loyalty and positive word-of-mouth referrals.
Rubber Cracker mills machine are very essential machines for manufacturing Crumb Rubber Powder from Scrap rubber parts, tire, tube, flap, sheets, etc. The applications of cracker mills machines involves for breaking rubber pieces into very small rubber pieces depending upon nip opening.

- Rigid Steel Casting Frame
- Graded Steel Casting Bull Gears
- Graded Steel Casting gears and pinion of reduction gear-boxes to withstand the heavy load.
- Well designed accurately machined flutting of rolls as per requirement
- Reteething, repeated turning or replacement of connecting gears is totally abolished with every re grooving/ flutting of rolls.
- Reduction of roll wobblers size some times resulting in Cracking of rolls to accommodate smaller dia pinion is not required. In fact friction ratios as high as 3:1 are easily available.
- Rolls need not to be discarded as after certain reduction in diameter, friction gears no more remain compatible. Optimum utilisization of the rolls (till the end of the chill depth) is possible, without making any changes in the transmission or otherwise with mills.
Rubber Products Machine Operator: The Complete Career GuideScope
Rubber products machine operators work in manufacturing plants and factories. They work with heavy machinery and equipment to produce rubber products such as tires, hoses, belts, and seals. They are responsible for ensuring that the machines are running smoothly and producing quality products.
Work Environment
Rubber products machine operators work in manufacturing plants and factories. They may work in hot and noisy environments, and may be exposed to chemicals and dust.
Conditions
Rubber products machine operators may need to stand for long periods of time, and may need to lift heavy materials. They must follow strict safety procedures and wear protective gear such as gloves, goggles, and earplugs.
Typical Interactions
Rubber products machine operators work as part of a team in a manufacturing setting. They may interact with other machine operators, supervisors, quality control inspectors, and maintenance workers. They may also communicate with suppliers and customers regarding product quality and specifications.
Technology Advances
Rubber products machine operators may need to keep up with advances in technology, such as new types of machinery and software for monitoring and controlling production processes. They may also need to learn new skills related to automation and robotics.
Work Hours
Rubber products machine operators may work full-time or part-time, and may work on rotating shifts or weekends. Overtime may be required during busy production periods.
Industry Trends
The rubber products manufacturing industry is expected to continue to evolve with new technologies and materials. This may include the use of more sustainable and eco-friendly materials, as well as advances in automation and robotics.
According to the Bureau of Labor Statistics, employment of rubber products machine operators is projected to decline by 4 percent from 2019 to 2029. This is due to increased automation and outsourcing of manufacturing jobs.there may still be opportunities for those with experience and skills in operating and maintaining advanced machinery.
Understanding Rubber Refiner Mills
What is a Rubber Refiner Mill
A rubber refiner mill is a heavy-duty machine designed to refine and process raw rubber into high-quality compounds it consists of two counter-rotating rolls made of high-grade alloy steel usually hilld cast iron or chrome-plated for durabilit .These rols rotate at varying speed tocrush blend.and refine the rubber into uniform sheets or compounds.
Uses and Machine Specifications
Machine Specifications: Rubber refiner mills come in various sizes and configurations offering different roll diameters and lengths, motor powers,and advanced control systems for precision processing.
Uses:They are crucial in refining rubber compounds forvarious applications, including tre manufacturing conveyorbelts,ruber sheet,hoses, andother industrial rubber products.
Applications in Different Products
Rubber refiner mills are utilized in producing a wide array of rubber products:
Tire Manufacturing:They refine rubber compounds used in tire treads, sidewalls, and other tire components.。Rubber Sheets and Mats: Used to create uniform rubber sheets and mats for various industrial applications.
Conveyor Belts and Hoses:Refine rubber compounds for durable and reliable conveyor belts and hoses across industries.
lmportance in Rubber Reclaim Process
ln rubber reclaim or recycling, refiner mills break down used or scrap rubber into fine particles,facilitating the reclaim process to create new rubber compounds.This helps in reducing wasteand reusing rubber materials efficiently.
Rubber Refiner Mill in EVA Sole Recycling for Footwear
They are also crucial in EVA sole recycling for footwear manufacturing.They break down andrefine rubber compounds, enabling the reuse of materials for producing new EVA soles andpromoting sustainability in the footwear industry.
How is Rubber Refiner Mill Designed
A rubber refiner mill is mainly utilised for the refining of reclaimed rubber. The operational ease and functional performance make this mill your preferred machinery in the reclaim rubber industry for refining pure and fine rubber powder from waste. Similar in construction to an open mixing mill, you will observe that its distinguishing feature is that both the rolls have a different diameter.
The front roll is smaller in diameter as contrasted to the back roll. And hence when you see a refiner mill identified as 21″ x 24″ x 36″, you simply need to decode it as the Front Roll diameter is 21 inches. The Rear Roll diameter is 24 inches and both the rolls have the same face length of 36 inches.
The Rear Rolls have a higher surface speed than the Front Rolls again a similar attribute of a regular rubber mixing mill. However, in your refiner mill, the differential sized rolls turning at considerably different speeds supplies a high friction ratio. The ratio of the speed of your Front Roll to Rear Roll could vary in the range of 1:1.75 to 1:2.50 depending on your process requirement.
When the rolls are set quite tightly to one another (i.e. close nip-gap adjustment of 0.05mm), refined rubber in thin-sheet form (~ 0.10mm) is manufactured. This sheet that you get is normally smooth, uniform and free of grain or lumps. In this refining process, the impurities contained in reclaimed rubber are squeezed by rolls to both sides of the rubber sheet which can be removed.
Rubber Refiner Mill is similar in aspect, construction and features of safety and operation; as a beginner, you simply require to absorb that there are special kinds of two-roll mills used in the reclaim rubber industry to produce smooth and homogeneous rubber sheets.
Benefits Of Rubber Refiner
Operation
We designed our rubber refiners to be user-friendly. They simplify the process and reduce the operator’s workload. The new control system boosts productivity. It also ensures stable processes and consistent product quality.
Production
Crown Machinery’s rubber refiners can do high-quality rubber processing quickly. They boost productivity and output and bring higher economic benefits.
Environment
The rubber refiners we make are energy-efficient. They use less energy and produce less waste. Reduced environmental costs.
Rubber refiners are an essential part of the manufacturing industry, particularly in the production of rubber products. These machines play a crucial role in ensuring that the raw rubber materials are processed correctly and efficiently, which is essential for the production of high-quality rubber products.
One of the main benefits of using rubber refiners is that they help to improve the quality of the rubber products. By breaking down the raw rubber materials into smaller particles, the refiners ensure that the rubber compound is more uniform and consistent, which results in a higher-quality final product.
Another benefit of using rubber refiners is that they help to increase the efficiency of the manufacturing process. By processing the raw rubber materials more efficiently, the refiners help to reduce the amount of waste generated during the manufacturing process, which can result in significant cost savings for manufacturers.

What is dispersion mixer process
The dispersion mixer process typically occurs in three stages: Wetting, deagglomeration, and stabilization.
Wetting: In this stage, the solid particles or droplets are initially contacted with the liquid medium. The goal is to coat the particles with the liquid, reducing the interfacial tension between the solid and liquid phases. Wetting agents or surfactants may be added to aid in this process.
Deagglomeration: Once the particles are wetted, the next stage is to break them down into smaller, individual units. This is achieved by applying shear forces, either mechanically or through the use of chemical agents. The shear forces disrupt the agglomerates and break them into smaller particles.
Stabilization: The final stage involves stabilizing the dispersed particles to prevent reagglomeration. Stabilizers, such as emulsifiers or polymers, can be added to create a protective layer around the particles, reducing their tendency to reagglomerate.
The dispersion mixer process can be carried out using various equipment, such as high speed agitators or ultrasonicators, depending on the specific requirements of the application.
The resulting dispersion typically exhibits improved physical properties, such as increased solubility, reactivity, and stability. It also allows for the uniform distribution of active ingredients or particles throughout the liquid medium, which is crucial in many industrial applications.
How Do I Select the Proper Size Disperser
The size of a disperser is generally thought of in terms of horsepower. There are dispersers that are dimensionally very large but use relatively small amounts of horsepower. These are exceptions to the rule.
The horsepower of the disperser is related to the blade diameter and the anticipated load the blade will create at a given speed and resistance. The resistance is a function of the rheology of the dispersion as well as the viscosity and density. However, as the blade diameter increases, the horsepower increases disproportionately. For example: If a 12” diameter blade were to draw 20 HP in a non-Newtonian system (viscosity changes with shear), doubling the blade diameter could increase the horsepower demand by a factor of 5. That means a 24” diameter blade of the same design, working in the same product, would require 100 horsepower. The larger blade would also pump considerably more so it would lend itself to working in a much larger (perhaps 5 times the volume) tank and producing a much greater amount of finished product in the same time period.
Horsepower requirements are interrelated with blade diameter, tank diameter, batch size, rheology, viscosity and density. Variations outside recommended operating parameters usually result in compromises in performance such as poor particle separation, extended dispersion times, and a decrease in quality of the finished product.
Our Factory
We have obtained ISO9001 certificates. Our products have been exported to 57 countries. Our export turnover is more than 36 million US dollars per year.

FAQ
Q: What is a disperser mixer used for?
Q: What equipment is needed to make plastic?
Q: What are the common types of Plastics & Rubber Machinery?
Q: What is the role of Plastics & Rubber Machinery in the industry?
Q: How to choose the right Plastics & Rubber Machinery for a specific application?
Q: What are the key considerations for maintaining Plastics & Rubber Machinery?
Q: Are there advancements in Plastics & Rubber Machinery technology?
Q: How long does it take to manufacture plastic?
Q: Why is rubber better than plastic?
Q: How does a Rubber Cracker work?
Q: What are the key features to consider when choosing a Rubber Cracker?
Q: What is a Rubber Cracker?






