The PC400 track roller supporting roller is specially designed for super large excavators. It is made of top-grade high-strength special alloy and formed by exquisite forging technology. The wheel body is extremely strong and has super high pressure resistance. It can easily bear the ultra-high pressure of the PC400 excavator when operating under harsh working conditions, ensuring the stability of the equipment and greatly improving the construction efficiency.We manufacture different machine models track rollers and can offer customized products. Follow us,you will get the items what you request.