Actuator Selection Tool

Calculate the required force and specifications for your motion control project.

Minimum Dynamic Force
-- N
Estimated Power Req.
-- Watts
Recommendation
Enter values to begin

What is an Actuator Selection Tool?

An Actuator Selection Tool is a specialized calculator designed to help engineers and hobbyists determine the necessary physical specifications for linear motion components. Selecting the right actuator is critical to ensure that your machinery can handle specific loads without failure while maintaining the desired speed and efficiency. This tool accounts for weight, gravity, and safety margins to provide a data-driven recommendation for your project.

How to Choose the Right Linear Actuator

When selecting a linear actuator, several key factors must be considered to avoid under-powering your system or overspending on unnecessary capacity:

  • Load Capacity: The most vital metric. You must calculate both the static load (the weight the actuator holds when still) and the dynamic load (the force required to move the object).
  • Stroke Length: This is the distance the actuator needs to extend or retract. Always ensure your mounting space accommodates the fully retracted length of the unit.
  • Speed Requirements: Faster actuators typically offer less force, while high-force actuators move more slowly. Finding the balance is key to optimal performance.
  • Duty Cycle: This refers to the ratio of 'on-time' to 'off-time'. Most electric actuators are not designed for continuous 100% operation without cooling periods.

Frequently Asked Questions

What is a safety factor in actuator selection?

A safety factor is a multiplier applied to your calculated load to account for friction, unforeseen resistance, and mechanical wear over time. A standard factor of 1.5x is usually sufficient for most industrial applications.

Why does speed affect force?

In DC motor-driven actuators, there is an inverse relationship between speed and force. By changing the internal gear ratio, manufacturers can produce more torque (force) at the cost of linear velocity, or vice versa.

How do I calculate Newtons from Kilograms?

To convert mass to force (weight), you multiply the mass in kilograms by the acceleration of gravity (approximately 9.81 m/s²). Our tool automates this calculation for you, including the added safety margin.