When you're shopping for industrial robotics cobots, the range of options can feel overwhelming. Are you looking for a complete arm ready to integrate, or a used controller to revive an older line? Do you need a 210 kg payload workhorse or a compact 7 kg arm for lighter assembly? The listings we are looking at span from $303.99 to $34,000.00, and they include a brand-new KUKA system, a used Nachi arm with controller and teach pendant, a 1997 Staubli arm/controller combo, and a Yamaha controller with a missing bracket. The right pick depends on your budget, your payload and reach requirements, and whether you need a full robot or just a control unit.
Quick Take
If your priority is a new, complete industrial robot arm and you have the budget, the KUKA KR 210 R3100-2/FLR with KR C4 NA controller is the standout. Need a full six-axis arm with controller and teach pendant at a mid-range price? The Nachi MZ07 offers the most complete package in the middle of the price spread. On a tighter budget, the Staubli RX90 CS7 gives you a six-axis arm and controller from 1997, while the Yamaha SRCX 05 controller is an entry-level used controller, though it is missing a bracket.
Listed Price Comparison
| Product | Listed Price | Price Bar |
|---|---|---|
| KUKA KR 210 R3100-2/FLR w/ KR C4 NA (New) | $34,000.00 | |
| Nachi MZ07 6-Axis w/ CFD Controller & Teach Pendant | $7,999.99 | |
| Staubli RX90 CS7 6-Axis Robot Arm/Controller 1997 | $2,499.99 | |
| Yamaha SRCX 05 Robot Controller (Used) | $303.99 |
The KUKA listing is the most expensive by more than $26,000 compared to the next closest, while the Yamaha is the lowest listed price in this set.
Decision Matrix
| Product | Best For | Key Listed Details | Limitation to Note |
|---|---|---|---|
| KUKA KR 210 R3100-2/FLR | High-payload production cells | New; 210 kg payload; 3100 mm reach; KR C4 NA UL controller | Highest listed price in this group |
| Nachi MZ07 | Complete 6-axis arm setup | 7 kg payload; 723 mm reach; includes CFD controller and teach pendant | Used condition |
| Staubli RX90 CS7 | 6-axis arm/controller from 1997 | Includes CS7 controller; condition notes mention dent and missing key | Older used unit with cosmetic/accessory issues |
| Yamaha SRCX 05 | Budget controller need | Used controller | Bracket missing; controller only |
Product Notes
KUKA KR 210 R3100-2/FLR QUANTEC-2 Robot w/ KR C4 NA Controller (New)
The KUKA listing gives you a new, integrated robot package: the KR 210 R3100-2/FLR arm paired with a KR C4 NA controller. The listed payload is 210 kg, the reach is 3100 mm, and the package is described as carrying full UL and TÜV certifications. For any high-load material handling or automation task, this is the only new arm in the group, and it comes with a modern controller. The catch is the price: at the top of the range here, it is substantially higher than every other product in this comparison. If your project needs a heavy-duty system and you want new equipment rather than used surplus, this is the one to budget for.
Nachi MZ07 6-Axis Industrial Robot Arm W/ CFD Controller & Teach Pendant 7kg
The Nachi MZ07 is the practical middle option. For a mid-range listed price, you get a used six-axis robot arm with a 7 kg payload and 723 mm reach, plus the CFD controller and a teach pendant. That makes it the only arm-plus-controller-plus-pendant bundle in the mid-price tier, which is useful if you need a complete robot station rather than just a controller. The arm is listed as used, so expect the usual considerations that come with pre-owned industrial equipment. If your tasks are in the lighter payload range and you want a complete robot setup without stepping up to the KUKA price, this is a strong fit.
Staubli RX90 CS7 6-Axis Industrial Robot Arm Controller 1997 *READ
The Staubli RX90 CS7 is the least expensive full six-axis arm-and-controller combination in this set. The listing includes the RX90 arm and the CS7 controller, but the title and description flag "READ" and mention a dent on the corner and a missing key. So it is a 1997-era used unit that will likely need attention before it works in your line. If you have the skills to refurbish or you need spare components, this could be a budget way into a Staubli robot. But for a ready-to-run system, you would need to factor in the condition issues before comparing it to the Nachi.
Yamaha SRCX 05 Robot Controller Factory Automation Equipment Bracket Missing
The Yamaha SRCX 05 is the lowest-priced item here. It is a used robot controller in the Yamaha SRCX line, marketed as factory automation equipment. The listing specifically says one bracket is missing, and it is a controller only-no arm is included. That makes it a sensible choice if you already own a compatible Yamaha arm and need a replacement control unit on a tight budget. If you are looking for a complete robot arm, this listing won't fill that need. For a shopper who just needs a spare controller, the sub-$400 price is the most accessible entry point in this group.
Final Recommendation by Use Case
- New, heavy-duty automation: Choose the KUKA KR 210 R3100-2/FLR if the top-of-range listed price fits the project budget and you need a 210 kg payload with a 3100 mm reach and a KR C4 NA controller.
- Complete mid-range arm package: Choose the Nachi MZ07 if you want a 7 kg six-axis arm with controller and teach pendant and can accept used condition.
- Limited budget, older full system: Choose the Staubli RX90 CS7 if you are willing to work around a 1997 unit with a dent and missing key.
- Controller-only replacement: Choose the Yamaha SRCX 05 if you just need a used controller and can handle the missing bracket.
