The Hydraulic Cylinder (OEM Part No. 3128308143) is a spare part compatible with S7D and T1D underground drilling rigs. Manufactured from high-quality steel, it is designed as a hydraulic component for underground drilling rig hydraulic systems. The hydraulic cylinder converts hydraulic pressure into linear mechanical motion, providing reliable control for positioning, feeding, and support operations. Its durable construction ensures stable performance, high load resistance, and long service life in demanding mining and tunneling environments. This OEM replacement hydraulic cylinder helps maintain efficient equipment operation and reliable drilling performance.