The Magnet (OEM Part No. 3128310518) is an electrical spare component compatible with Simba M4C, Simba E70, Simba E7C, M40S, underground drilling rigs. Manufactured from permanent magnet material, it is designed for the rock drill assembly control unit position. The magnet supports sensing and control functions within the equipment system, helping maintain accurate operation and reliable performance. Its durable construction ensures stable magnetic performance under demanding mining conditions. This OEM replacement magnet helps maintain control system efficiency and operational reliability of underground drilling equipment.