When are HOP actuators an inappropriate choice as a prime mover?
• Mechanisms requiring fast response (< 10 seconds) • Mechanisms requiring simultaneous operation from multiple actuators • Mechanisms requiring high forces over long strokes from limited power. For instance, a 1000 lbf/2" stroke actuator can be designed, but will require 200 watts of power for 8 minutes of actuation. What is the operating life of an HOP actuator? Cycle life is dependent on the actuator stroke and output force, and is established for each model. For example, the PH-8015 will provide 50,000 full stroke/full load cycles, while the IH-5055 provides 1,000. Most SRC actuators have a lifetime in excess of 1,000 cycles. What happens if HOP operating limits are exceeded? The actuator will "fail-safe" if either of the following occur: • The actuator is operated against a force more than twice the rated output force. • Actuator power remains on after full extension has occurred. (The time available after full extension is reached varies from 15 seconds to 10 minutes). Either of
