Choosing among these four robot arms is not about picking the least expensive unit or the largest payload; it is about matching the machine to the work you already have. One side of the comparison has a compact new desktop manipulator with a PLC and air pump. The other side has long-reach used Staubli arms, plus a Staubli controller unit for an RX90 system. The right decision hinges on how many axes the job needs, what the arm has to lift, and how much condition risk you are comfortable carrying on a used unit.
Quick take
Choose the new 3-Axis Mechanical Robot Arm if you want a contained desktop setup. Choose the Staubli TX2-60L if you need a six-axis arm pulled from a working environment and described as tested and working. Choose the Staubli TX90 ESD if the payload-to-reach balance matters more than cosmetics. Choose the Staubli RX90 CS7 if you already have an RX90 system and need the controller.
Listed-price comparison
| Model | Listed price | Price bar |
|---|---|---|
| 3-Axis Mechanical Robot Arm | USD 968.05 | |
| Staubli RX90 CS7 Controller | USD 2,499.99 | |
| Staubli Faverges TX90 ESD | USD 2,999.99 | |
| Staubli TX2-60L | USD 7,999.99 |
The price spread runs from USD 968.05 to USD 7,999.99.
Decision matrix
| Your priority | Matching unit | Why it fits |
|---|---|---|
| New bench-scale teaching or light handling | 3-Axis Mechanical Robot Arm | New unit with PLC, air pump, 0.5 kg payload, and 460 mm working diameter |
| Long-reach six-axis production arm | Staubli TX2-60L | Six-axis arm with 920 mm reach and 4.5 kg payload; described as tested and working |
| Higher payload among the used arms | Staubli Faverges TX90 ESD | Six-axis arm with 100 cm reach and 6 kg payload; fair cosmetic condition with an oil leak |
| RX90 controller replacement | Staubli RX90 CS7 | 1997 CS7 controller unit with a dent and missing key noted |
Product notes
3-Axis Mechanical Robot Arm Industrial Manipulator Desktop with Air Pump PLC new
This is the only new unit in the four options and the low end of the price bar. It is a compact, desktop-oriented robot arm that comes with a PLC and an integrated air pump, so it is closer to a self-contained teaching or small pick-and-place station than a large production robot. The clear limitation is its light-duty classification: the arm is meant for small manipulation work rather than heavy lifting. If your process needs six axes or a longer reach, the used Staubli arms on the other end of the comparison will be the more capable physical structure. For a bench-scale project where new condition matters, this is the direct answer.
Staubli TX2-60L 6-Axis Articulated Industrial Robot Arm 920mm Reach 4.5kg
This is the highest-priced option in the group, and the reason is the combination of reach, axes, and stated working condition. The title describes a six-axis articulated arm with 920 mm reach and 4.5 kg payload; the item was removed from a working environment and is tested and working. The practical limitation is that only the items shown in the photos are included, so you are buying an arm assembly as pictured, not a fully accessorized station. For a production cell that needs a six-axis arm with long reach and a working status, this is the strongest match in the lineup.
Staubli Faverges TX90 ESD 6-Axis Industrial Robot Arm 100cm Reach 6 kg Payload
The TX90 ESD sits in the middle of the price range and offers the highest listed payload among the used arms. That makes it tempting for heavier items, but the condition notes are the counterweight: it is used, in fair cosmetic condition, with an oil leak at either joint 1 or joint 2 (or both), a stained side, and scuffs on the custom end effector. It also comes in non-original packaging. If you can handle maintenance and do not mind a worn exterior, the reach and payload are the draw. If you need a clean drop-in arm, this unit asks for more work before installation.
Staubli RX90 CS7 6-Axis Industrial Robot Arm Controller 1997 *READ
This item is a controller, not a complete robot arm, even though the title includes the RX90 arm name. It is a 1997 Staubli RX90 CS7 controller with a dent on the corner and a missing key. If you already have an RX90 arm, the CS7 controller may be exactly the module your cell needs. If you are starting a new install, this is not the place to begin because no arm is included. The age and condition are the two things to weigh before you buy.
Final recommendation by use case
For a new, self-contained bench-scale arm, the 3-Axis Mechanical Robot Arm is the lowest-priced new-condition choice. For a production cell that needs six axes and long reach, the Staubli TX2-60L is the tested-working pick. For a higher payload with 100 cm reach, the Staubli TX90 ESD delivers the strongest lift in the used group even with its noted cosmetic and leak issues. For an RX90 owner, the Staubli RX90 CS7 controller is the specific spare part.
