The inner workings of the Fanuc R2000iA/125L Robot

Oct 14, 2013

If you dive deeper into the Fanuc R-2000iA series of robots, you will find some of the biggest robots constructed by Fanuc. These big, heavy payload robots can tackle a wide range of functions such as material handling and material removal.


The Fanuc R2000iA series of robots are by far some of the biggest robots con­struct­ed by Fanuc today. These heavy pay­load robots per­form func­tions like mate­r­i­al han­dling and mate­r­i­al removal with the great­est of ease, even on large parts. How­ev­er, it is the small parts inside the robot that make it so pow­er­ful. These small parts like the ser­vo motors, gears, and reduc­ers are what make it run.

The ser­vo­mo­tors of the R2000iA-125L (part num­bers A06B-0267-B605 and A06B-0235-B605) are attached to every axis of the robot to give it the abil­i­ty to pow­er the gears. These motors are equipped with ampli­fiers that receive feed­back from oth­er parts of the robot and help the robot run more efficiently.

The gears found in the R‑2000iA 125L (part num­bers A290-7324-X423, A290-7324-X425 and A290-7324-Y421) are the pieces that actu­al­ly bring the robot to life. With­out these vital parts, the robot would be doomed to stay stuck in its crouch for eternity.

Final­ly, the reduc­ers (part num­bers A97L-0218 – 0355, A97L-0218 – 0281 and A97L-0218 – 0370) are the parts that crit­i­cal­ly con­tribute to the over­all func­tion­al­i­ty of the robot. The reduc­ers direct pow­er from the motors to the parts of the robot that need it, slow­ing the out­put and rerout­ing it as necessary.

If you are look­ing to auto­mate your shop with a Fanuc R‑2000iA/​125L, or you own one and it is in need of new parts, then Robots​.com is the place to go. For more infor­ma­tion, con­tact Robots​.com today at 8777626881.

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