Maximum solenoid life is achieved when the pull force required coincides as nearly as possible with the force generated by the solenoid. Solenoids that develop substantially more force than necessary are subject to excessive hammering, which may eventually lead to mechanical failure.
To improve mechanical life, the load must be aligned with the plunger, and side loads must be kept to a minimum.
The mechanical life of DC solenoids will be increased with the addition of an anti-bottoming feature. There will be a slight reduction in force caused by an internal air gap when an anti-bottoming feature is included.
