Recently, Volvo has driven an all-electric excavator called EX1 into a quarry, where it will begin a 10-week electric field test. At the same time, Cummins and Hyundai Construction Equipment teamed up to develop a small electric excavator. Hyundai D S Kim said that as electric vehicles in the automotive market continue to expand, they also saw the potential of many people to electrify commercial power systems as solutions for environmentally friendly and economically sustainable building equipment. The modern CE-built excavator uses eight Cummins BM4.4E lithium-ion battery modules that are mounted on the base of the vehicle. It is reported that the total battery capacity is 35.2kWh, and it can supply enough power for 3 hours of charging. If you want to be full, you need to charge it for 8 hours. But the project for this small electric excavator is still in the prototyping phase, and it will need to be further optimized for performance and proof of concept.
Thermoplastic Polyurethane (TPU) is a type of polymer resin that is known for its flexibility, durability, and versatility. It is a thermoplastic material, which means it can be melted and reprocessed multiple times without losing its original properties.
TPU is commonly used in various industries, including automotive, electronics, footwear, and sportswear. It is often used to make products such as phone cases, cables, hoses, seals, gaskets, and inflatable structures.
Some key properties of TPU include:
1. Flexibility: TPU has excellent flexibility, allowing it to bend and stretch without breaking. This makes it suitable for applications where flexibility is required, such as in shoe soles or flexible electronic components.
2. Abrasion resistance: TPU has good resistance to abrasion, making it suitable for applications that require durability and resistance to wear and tear.
3. Chemical resistance: TPU is resistant to many chemicals, including oils, solvents, and greases. This makes it suitable for applications where exposure to chemicals is expected.
4. Weather resistance: TPU has good weather resistance, meaning it can withstand exposure to sunlight, moisture, and extreme temperatures without degrading or losing its properties.
5. Adhesion: TPU has good adhesion to various substrates, allowing it to be easily bonded or laminated with other materials.
Overall, TPU is a versatile material that offers a balance of flexibility, durability, and chemical resistance, making it suitable for a wide range of applications.
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Cummins and Hyundai CE jointly launched a small electric excavator
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