Industry News & Blog 
As highlighted by mold core experts in the source content titled "Mold Core," the ejection system within injection molds holds significant importance, particularly for complex parts that pose challenges during extraction. This system's design profoundly influences the quality of the end product, making it a critical consideration. During ejection, friction forces develop between the mold's steel surface and the polymer surface due to the polymer's shrinkage onto the mold cores. This friction, particularly pronounced in cases involving deep cores, stems from differences in thermal expansion coefficients between the thermoplastics and steel. The interaction of these forces necessitates meticulous design... Read More
According to Plastic Technologies' blog, two-shot injection molding is a highly beneficial process that combines different colors or materials within a single part. The process involves injecting the first material or color into the mold, rotating it, and then injecting the second shot. This innovative technique offers numerous advantages, such as enhanced design possibilities, reduced assembly time, improved part strength, and increased product functionality. To learn more about Custom Engineered Wheels capabilities click here Photo and article with all rights reserved, courtesy of www.plastictechnologies.blogspot.com [/vc_column_text][/vc_column][/vc_row] Read More
As described on Wikipedia, the injection moulding process involves shaping plastic materials in the form of pellets or granules, which are then fed into a heated barrel using a forced ram. The plastic is melted in the heated chamber and pushed through a nozzle into the mould cavity via a gate and runner system. The mould, remaining cold, allows the plastic to solidify quickly upon filling. The injection moulding cycle consists of several steps, starting with the closure of the mould, followed by the injection of polymer into the cavity. Holding pressure is maintained to compensate for material shrinkage.... Read More
As explained by Barron Equipment & Overhead Doors, casters are wheeled devices commonly mounted to larger objects, enabling easy rolling. In industrial settings like factories and warehouses, heavy-duty casters are widely used, while medium to light-duty casters are found in everyday items like shopping carts or TV stands. The key difference between wheels and casters is that wheels are a part of the caster. Casters, with their wheels and brackets (often called "forks"), have been around for about 150 years. They offer versatility for various industrial applications, and choosing the right caster material, bearing type, size, and wheel type... Read More
According to a reliable source on Wikipedia, injection mold construction is a critical process utilized by Custom Engineering Wheels to facilitate injection molding operations. The method involves creating molds using an injection molding machine, which are essential for producing plastic parts with precision. The molds are designed as either two-plate or three-plate molds, depending on the type of component being manufactured. The construction process is determined by various factors, including the component's shape, parting line selection, runner and gate selection, and component ejection system. The size of the mold base is also customized based on the component size and... Read More
What are Urethane Wheels? Urethane wheels are wheels made of molded urethane, also known as polyurethane. Urethane is an elastomer that comprises urethane carbamate linkages and is a portmanteau phrase for "elastic polymer." All of the advantages of metal, plastic, and rubber wheels are integrated in urethane wheels. They are more cost effective, more flexible, have better noise reduction, higher resilience, and are more resistant to impact, abrasion, and corrosion than metal. In terms of low temperatures, impact, cold flow, abrasion, and radiation resistance, urethane outperforms plastic. They can also reduce noise, are more resilient, have superior elastic memory, and... Read More
Differences Between Polyurethane and Rubber Both rubber and polyurethane are regarded for their elastic, flexible properties. Each material is commonly used in the manufacturing of parts and components in the automotive industry. The largest user of polyurethane reaction injection-molded (RIM) parts is the automotive industry. Because it is typically more durable than rubber, polyurethane is used in applications that require continual exposure to stress or constant stretching and offer a degree of flex, with plenty of strength. Such body parts as fenders, bumpers, and spoilers are made of polyurethane. Rubber’s place in the automotive industry comes down to a single... Read More
Today, there are around 131 million wheelchair users around the world. Most are relying on the same decades-old technology to get around. That’s because the wheelchair, for all that it has done to improve the quality of people’s lives, has changed little over the course of the past generation. Until now. The digital technologies shaping the Fourth Industrial Revolution also have the potential to make substantial improvements to people’s quality of life. Here are three tech-driven start-ups and entrepreneurs working to bring the power of digital transformation to bear on the wheelchair. Read more: These 3 tech visionaries are reinventing... Read More
Rubbers are a family of polymeric materials based on the chemistry of natural rubber latex. While there are many synthetic rubbers in the market, they share a basic chemical composition with natural rubbers. Rubber is a cost-effective solution for many applications, but its physical properties often prevent superior performance. Unlike rubber, polyurethane offers higher load-bearing capacity, better compression set, and superior tolerance to greases, oils, oxygen, and ozone. Because rubber is biodegradable, it tends to rot and degrade over time with exposure to the elements. But, man-made polyurethane can be easily formulated to outlast rubber and stand up to sunlight... Read More
The role of the rear wheel is to offer stability to the wheelchair, and also the ability for the user to self propel. In order to be able to manually self propel, the user must choose the large rear wheels. This offers the user independence as they don’t need to rely on another person to get around. Typically, more active wheelchair users will opt for the larger rear wheels. If the user has someone, for example a caregiver or family, who is going to push the wheelchair from behind all the time, then a smaller rear wheel is more suitable.... Read More
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