Motion Control – Two Axis Linear Positioning Stage From H2WTechnologies

H2W-2 Axis Linear Motion ShakeTable

Santa Clarita, CA —– Scientists, with the goal of safer buildings and saving lives, are testing building materials and structural designs in simulations of many recent earthquakes that have seismic data available. Using a two-axis high force linear positioning stage from H2W Technologies, they can simulate the effects of earthquakes as large as the largest recorded earthquake in history, the 9.5 magnitude quake on the open ended Richter scale, in May of 1960 in Chile.

The standard high speed, high acceleration linear positioning stage’s stroke is 8 in. in both the X and Y axes, while the force in the X axis is 400 lbs continuous (1200 lb peak) and the force in the Y axis is 200 lbs continuous (600 lb peak), although longer strokes and higher forces are available. The 3-phase brushless motors with Hall Effects and guided by ball linear bearings can produce the force and acceleration necessary to simulate different types of earthquakes, including a “Transform plate boundaries” quake, which is the most common destructive type of earthquake. This type of earthquake occurs when tectonic plates slide horizontally against each other, and at these boundaries destructive earthquakes can occur.

To accurately simulate the destructive forces of an earthquake in the laboratory, high acceleration and precise linear positioning are required. One micron resolution linear encoders provide positional accuracies to ± 20 µm and repeatability is better than ± 5µm.

This high accuracy, high force XY stage is also ideal for pick-and-place applications involving heavy payloads and robotics. Stages with greater travels and custom mounting configurations as well as complete motion control systems (including electronics) can be provided.

Other motion control products include: Limited angle torque motors for compact, limited angular excursion rotary servo applications, 3 phase brushless rotary servo motors with matching digital servo amplifiers and permanent magnet linear brakes for fail-safe, zero power braking for baggage handling and people moving applications as well as amusement park rides.

With over 75 years combined experience in the linear and rotary motion field, the H2W Technologies team of engineers offers the optimal solution to the most demanding motion control, requirements.

For additional information contact Mark Wilson at H2W Technologies, 26470 Ruether Avenue #102, Santa Clarita, CA 91350; Tel: 888-702-0540, Fax: 661-251-2067, E-Mail: or visit the website at

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