ARC Mate 120ib

ARC Mate 120ib

The FANUC Arc Mate 120ib robot is designed for automated welding, robotic welding, and robotic plasma welding applications. This industrial robot is used in many arc welding scenarios due to its flexibility and reliability. The ArcMate 120ib is a six axis industrial robot with servo driven motors. The FANUC 120ib is available in the FANUC RJ3IB, FANUC RJ3IC and FANUC R30ia controllers. This articulated robot is the predecessor to the hollow wrist Arcmate 120ic

With the capability to perform automated MIG and TIG welding, along with various plasma based applications, the 120ib is a viable choice for most welding applications. The part number for the R-J3ib version manipulator arm is A05B-1216-B201. Integrating FANUC robots in an application can help increase the safety of your workplace. This FANUC welding robot is similar in reach and payoad to the Motoman HP20, ABB 2400, and KUKA KR 16. For welding applications requiring a longer reach, using a FANUC M710ic/20L would be better. For robotic applications that utilize a smaller work envelope, the Arcmate 100ib would be a more cost effective option.


Axes 6
payload 20 KG (44 lbs)
Reach 1667 MM (65.63 in)
Repeatability ±0.08mm (.0031 in)
Robot Mass 220 KG (485 lbs)
Structure Articulated
Robot Motion Speed Robot Motion Range
J1 165 °/s (2.88 rad/s) J1 - 170°
J2 165 °/s (2.88 rad/s) J2 - 160°
J3 175 °/s (3.05 rad/s) J3 - 290°
J4 350 °/s (6.11 rad/s) J4 - 200°
J5 340 °/s (5.93 rad/s) J5 - 140°
J6 520 °/s (9.08 rad/s) J6 - 450°

Partial Spare Parts

Robot Motion Speed Robot Motion Range
Aux Axis Control Board A20B-3300-0448
Aux Axis Control Board A20B-3300-0788
Control Board - Servo Amp - R30ia A20B-2101-0040
Control Board - Servo Amp - RJ3IB A20B-3300-0391
Discharge Resistor - R30ia A05B-2502-C100
Discharge Resistor - RJ3IB A05B-2452-C200
E-Stop PCB A20B-1008-0740
E-Stop Unit - RJ3IB A20B-2452-C524
Main CPU Board - R30ia A16B-3200-0600
Main CPU Board - RJ3IB A16B-3200-0412
Memory - FROM32MB/SRAM2MB - R30ia A20B-3900-0298
Memory - DRAM 32MB - R30ia A20B-3400-0020
Memory - DRAM 32MB - RJ3IB A20B-3300-0254
Memory - DRAM 64MB - R30ia A20B-3400-0021
Motor - A8/4000iS A06B-0235-B605
Motor - B.5/6000iS - RJ3IB A06B-0115-B275
Motor - B.5/6000iS - R30ia A06B-0115-B804
Motor - A2/5000iS A06B-0212-B605
Operator Panel - R30ia A05B-2502-C053
Operator Panel - RJ3IB A05B-2452-C151
Operator Panel - RJ3IB A05B-2452-C153
Operator Panel - PNL Board - R30ia A20B-2101-0370
Power PCB for Amp - R30ia A16B-2203-0660
Power Supply Unit - R30ia A16B-2203-0910
Power Supply Unit - RJ3IB A16B-2203-0370
Servo Amplifier - R30ia A06B-6107-H002
Servo Amplifier - RJ3IB A06B-6105-H002
Reducer - J1 A97L-0218-0303
Reducer - J2 A97L-0218-0362
Reducer - J3 A97L-0218-0305
Servo Amplifier - RJ3IB A06B-6105-H002
Arc Welding Teach Pendant A05B-2518-C200#EAW
Arc Welding Teach Pendant - R30ia A05B-2518-C202#EAW
Material Handling Teach Pendant - RJ3IB A05B-2301-C372
Generic Symbol Teach Pendant - R30ia A05B-2518-C202#SGL
Generic Teach Pendant - RJ3IB A05B-2301-C370
Material Handling Teach Pendant - R30ia A05B-2518-C200#EMH
Material Handling Teach Pendant - R30ia A05B-2518-C202#EMH
Material Handling Teach Pendant - R30ia A05B-2518-C203#EMH
Material Handling Teach Pendant - RJ3IB A05B-2301-C371
Material Handling Teach Pendant - R30ia A05B-2518-C202#EMH
Spot Welding Teach Pendant - R30ia A05B-2518-C202#ESW
Teach Pendant - RJ3IB A05B-2301-C373
Transformer - R30ia A80L-0024-0028
Transformer - RJ3IB A80L-0024-0025
Wrist Assembly A290-7216-T501