Rupes BigFoot Triple-Action Random Orbital Polisher - LTA125

Was: $658.00
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Part #: LTA125
Our Guarantee
  • High torque efficiency
  • 12mm/1/2" orbit
  • Triple action movement provides balance, low vibration, high torque and consistent pad movement regardless of downward pressure
  • Speed control
  • 5" Backing Plate; 6" pads
  • Includes:
  • 1 - LTA125 Pneumatic Polisher
  • 1 - 980.027N 125mm/5" backing plate

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Ergonomic, lightweight, and powerful. The LTA125 introduces a new innovative technology defined as “Triple Action” in the pneumatic polisher category. The dual action random orbital movement of the LT125 polisher is combined with epicyclic gearing that delivers levels of torque and consistency of movement never before seen in pneumatically powered tools. Triple Action movement provides incredible balance, low vibration, high torque and extremely consistent pad movement regardless of operator exerted downward pressure. The innovative epicyclic gear reducer located in front of the cam assembly significantly increases torque output while at the same reducing velocity. The result is a profound impact on one of the biggest variables in tool performance; the load applied by the user. By minimizing the variations caused by operator applied force a greater uniformity of performance of the tool is realized.

The 125mm (5″) backing plate of the LTA125 mates perfectly with the 150mm (6″) series of BigFoot random orbital polishing foams and orbital polishing creams to complete a system perfect for a number of industries including automotive detailing, aviation, marine, industrial or any business where a high-performance tool that is easy to use, ergonomic, and produces a more consistent result regardless of the user exerted downward pressure.

Rupes is offering a new type of movement known as TRIPLE ACTION. The power of a motor can be expressed as the product of the torque multiplied by the velocity. During normal use of a tool, the operator applies a variable load, which by effect of the friction forces and the work carried out by the motor might be such as to reduce the number of revolutions of the motor and, in the case of a DA random orbital, is such as to reduce the number of disc revolutions to zero. The load applied by the operator during normal use of a tool varies significantly over a measure of time, causing large variations in velocity of the number of orbits and the rotation of the rotor disc and consequently reducing the uniformity and effectiveness of the work operation. A more homogeneous process leads to a significant reduction in working times. In the case of triple action tools, and similar to the movement of DA random orbital tools, the disc, typically circular, follows an orbit and is free to rotate about its own central axis but, thanks to a special epicyclic gear reducer located in front of the cam group, the torque value is significantly increased while at the same time the velocity is reduced. With the use of this solution the impact of a variable in performance (the load applied by the user) is substantially minimized and, consequently, a greater uniformity of performance of the tool. This provides a considerable improvement in the surface finish as well as a drastic reduction in the vibration levels. From the very first use it is clear how advantageous this configuration is in terms of effectiveness and vibration reduction all thanks to the introduction of the epicyclic gear reducer; this is a technical improvement that so profoundly improves and changes the functionality of the tool that it merits a new movement category, the TRIPLE ACTION.

Backing pad - 125mm/5"
Orbit - 12mm - 1/2”
Working pressure - 6.2-90" bar-PSIG
Air consumption max - 400 l/min
R.P.M. - 0-6000
Weight - 1.3kg - 28.7lbs
Backing pad supplied - 980.027N

BrandRupes USA
Length12 inch(es)
Width8 inch(es)
Height4 inch(es)
Weight5 lb(s)
WARNING: Some products may contain chemicals such as DEHP, which can cause cancer, birth defects or other reproductive harm. For more info go to
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