Choosing used industrial robotics and cobots usually starts with one question: do you need a complete placement package or a robot arm to build around? The IAI CORP IX-NNN6020-5L-T1 sits at the top of this price range as a SCARA pick-and-place system, while the Mitsubishi RV-6S-S41 sits at the bottom as a robot arm. This head-to-head helps you decide which of those two starting points is the better fit for your floor.
Quick verdict
Pick the IAI if your operation is built around precision pick-and-place. Pick the Mitsubishi if you need a lower-priced robot arm and the rest of the station is your responsibility. The comparison table below gives you the concrete difference in price and system makeup.
Comparison table
| Decision factor | IAI CORP IX-NNN6020-5L-T1 | MITSUBISHI ROBOT ARM RV-6S-S41 |
|---|---|---|
| Listed price | USD 10,000.00 | USD 3,200.00 |
| Robot type | SCARA pick-and-place robot | Robot arm |
| System match | Hover-Davis QF01-16 tape feeder | Lenze EVS9323-EPV004 compatibility |
| Condition | Used | Used |
| Capabilities | Precision placement, cleanroom compatibility, controller integration | RV-6S-S41 model with Lenze compatibility |
Where each product wins
The IAI wins when you want a more complete placement starting point. The higher price makes sense when the included equipment is central to your workflow. The Mitsubishi wins when you want the lower-priced arm and plan to assemble the rest of the cell yourself. The price bars above make that trade-off easy to see.
Product notes
IAI CORP IX-NNN6020-5L-T1 Robot w/ HOVER-DAVIS QF01-16 Tape Feeder

The reason to choose the IAI is that it arrives as a pick-and-place system, not just an arm. The Hover-Davis QF01-16 tape feeder is matched to the robot, and the system includes precision placement, cleanroom compatibility, and controller integration. Table or inline mounting gives you two ways to fit it into a line. The main limitation is the high end of the price range; you are paying for the feeder and the integrated placement package. That makes sense for steady production work, but it is a heavier investment if your needs are lighter. If your process is tape-fed components, this is the exact configuration you are looking for.
MITSUBISHI ROBOT ARM RV-6S-S41 AXIS INDUSTRIAL

The reason to choose the Mitsubishi is the lower-priced path into a robot arm. The RV-6S-S41 model includes compatibility for a Lenze EVS9323-EPV004, which gives you a specific component to match against your existing setup. The limitation is the starting point: this is an arm, not a feeder-equipped pick-and-place system, so the surrounding tooling is left to you. For a shop that already has its own placement or handling equipment, the lower price leaves room in the budget for the rest of the cell. That makes it the right call when the arm is the missing piece rather than the whole station.
Final choice by use case
If you want an integrated placement package and your budget supports the higher price, choose the IAI. If you want a lower-priced robot arm with a clear compatibility reference, choose the Mitsubishi.