Besides shaker screens, there are many other solids control equipment parts. Including the vibrator, spring, cross support on shaker deck, wedge block, for shaker screen, there are repair plugs as well. Mud cleaner hydrocyclones, drop in Apex, couplings, pressure gauge, the mud hoppers, mechanical seal, pump case, pump head, the valves on tank, such as the gate valve, butterfly valve, check valve, the pipe coupling, union, or connection betwen tanks.
On the poor boy degasser, there is the relief valve, pressure gauge as well. The mud agitator, there will be gear box, the shaft with impeller, the stabilizer, the bearing and seals, etc. For centrifuge, there will be belt, bearing, discharge port rings, the tails on screw conveyor, etc.
A complete solids control system for oil drilling, there will be thousands of spare parts. Some of them are durable enough even under 2 year operation, however, some of them must be checked and replaced regularly