High closing forces
These materials can be difficult to penetrate and the grabs require a high grabbing capacity and extra closing force. Verstegen ore grabs are equipped with extra sheaves to ensure a good penetration and high closing force. The combination of a high closing force and the excellent shell design result in a good filing and high production rates.
Because the materials are quite hard and abrasive, extra attention must be paid to the lifetime of the critical areas of the grab shells. Heavy duty design shells made of Hardox steel make it possible to increase the lifetime of the grabs without increasing the dead weight.
Wear and maintenance
Handling abrasive materials will cause wear to the plates that are in contact with the bulk material. Wear takes place gradually, but will never stop and therefore maintenance is required on a regular basis. More information about wear and maintenance can be found here.