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Fanuc ARC Mate 100iC vs 120iC

The ARC Mate 100iC is the compact welding robot. The ARC Mate 120iC is the heavier arm Rice Automation builds the most cells around. Both are used for MIG and TIG. This page compares payload, reach, controller, and the used units that are in stock. Searchers also type Fanuc 100iC and Fanuc 120iC for these two arms.

Payload, reach, and controller

ModelPayloadReachController
ARC Mate 100iC 10 kg (22 lb) 1,420 mm (55.9 in) R-30iA
ARC Mate 100iC/6L 6 kg (13 lb) 1,632 mm (64.3 in) R-30iA
ARC Mate 120iC 20 kg (44 lb) 1,811 mm (71.3 in) R-30iA
ARC Mate 120iC/10L 10 kg (22 lb) 2,009 mm (79.1 in) R-30iA
ARC Mate 100iC/12 12 kg (26 lb) 1,420 mm (55.9 in) R-30iB
ARC Mate 100iC/7L 7 kg (15 lb) 1,632 mm (64.3 in) R-30iB
ARC Mate 100iC/8L 8 kg (18 lb) 2,028 mm (79.8 in) R-30iB
ARC Mate 120iC/12L 12 kg (26 lb) 2,009 mm (79.1 in) R-30iB

The standard ARC Mate 100iC is 10 kg and 1,420 mm, on the R-30iA. The standard ARC Mate 120iC is 20 kg and 1,811 mm, on the R-30iA or the R-30iA Mate. Those two rows are the comparison most shops are making. The other rows are the long-arm and higher-payload versions of the same families.

Which parts each arm suits

ARC Mate 100iC: Compact MIG or TIG welding where 10 kg and 1,420 mm fit the cell. Rice Automation refurbishes the 100iC and supports the R-30iA pendant and common weld packages.

ARC Mate 100iC/6L: A wider fixture than the standard 100iC, with a lighter 6 kg faceplate. It is still an arc-welding arm, not a material handler.

ARC Mate 120iC: Fixtures, headstocks, and heavier torch packages. Reach and a 20 kg faceplate are why it shows up in so many welding cells.

ARC Mate 120iC/10L: A deep fixture, or a reach over a positioner, when 10 kg at the faceplate is enough.

ARC Mate 100iC/12: A 12 kg wrist at 1,420 mm for torch packages and fixtures that outgrow the 10 kg 100iC. Match the rating on the arm.

ARC Mate 100iC/7L: Long-arm welding at 1,632 mm with a 7 kg wrist.

ARC Mate 100iC/8L: The long 100iC reach, 2,028 mm, when 8 kg at the wrist is enough.

ARC Mate 120iC/12L: Long-arm arc welding when the nameplate says 120iC/12L: 12 kg at the wrist and 2,009 mm of reach.

A deeper fixture, or a robot that has to reach over a positioner, is the reason to look at a long arm such as the 100iC/8L or the 120iC/10L. A heavier torch package is the reason to step from the 100iC to the 120iC. The cell around either arm is quoted on the robotic welding cells page.

Used prices

Prices for the rest of the Fanuc line are on the used Fanuc welding robot price guide. Controllers for these arms are compared on the R-J3iB, R-30iA, and R-30iB page.

100iC vs 120iC FAQ

What is the difference between the ARC Mate 100iC and the 120iC?

The ARC Mate 100iC is a 10 kg robot with 1,420 mm of reach. The ARC Mate 120iC is a 20 kg robot with 1,811 mm of reach. Both are six-axis arc welding robots.

Which controller does the 100iC use?

The ARC Mate 100iC runs on the R-30iA, including a cabinet labeled R-J3iC, and on the R-30iA Mate. The long 100iC/7L and 100iC/8L, and the 100iC/12, use the R-30iB.

Which controller does the 120iC use?

The ARC Mate 120iC ships on the R-30iA full cabinet or the R-30iA Mate. The long 120iC/12L uses the R-30iB. A listed unit may be on the controller that is on that arm.

Which one should I buy?

Use the 100iC when 10 kg and 1,420 mm fit the fixture. Use the 120iC when the torch package or the part needs 20 kg and more reach. Rice Automation builds the most cells around the 120iC.