Lead times depend on the complexity of the plant and on the level of automation required. As a general rule, a standard manual plant takes 8 to 16 weeks from contract signature to start-up. For complex automatic plants or plants with motorised overhead conveyors, lead times can extend to 20–30 weeks. Varco International manages the entire process in-house — design, manufacturing, installation and testing — giving the customer a single point of contact and ensuring the agreed schedule is met.