Used Industrial Robot Arms: Which One Actually Fits Your Cell? FANUC vs. Nachi vs. Staubli

Compare four used industrial robot arms from $1,800 to $7,999.99: FANUC M-16iB/20 arm-only, Nachi MZ07 with controller and pendant, Staubli RX130-B arm, and Staubli RX90 CS7 controller. Find the best pick for your budget and integration level.

Last updated Aug 17, 2026

When you're shopping the industrial robotics cobots category, the first thing you'll notice is that "robot arm" listings aren't all the same. One is a bare arm with no controller. Another is a complete arm with a teach pendant. A third is a standalone controller from 1997. So your real decision problem isn't just which brand to choose - it's how much you're willing to integrate and what you already have on your line.

If you need a ready-to-run arm, only one of these gives you the full package. If you're replacing a missing component, the right choice is completely different.

Quick Take

The Nachi MZ07 is the only listing here that comes with a controller and teach pendant, making it the most complete system. The FANUC M-16iB/20 is the lowest-priced arm and has the highest payload (20 kg), but it's arm-only. The Staubli RX130-B is a mid-priced arm from France. The Staubli RX90 CS7 is a controller, not an arm, so it only makes sense if you have an RX90 arm to power.

Listed Price Comparison

Product	Listed Price	What You're Getting
FANUC M-16iB/20 arm	$1,800.00	Used 2005 arm only, no controller or pendant
Nachi MZ07 with CFD controller & teach pendant	$7,999.99	Complete 6-axis system, 7 kg payload, 723 mm reach
Staubli RX130-B arm	$3,410.00	Used arm assembly designed for Stäubli controls
Staubli RX90 CS7 controller	$2,499.99	1997 controller, dent and missing key, for RX90 arm

Decision Matrix

Product	Consider It If...	Main Trade-Off
FANUC M-16iB/20	You already have FANUC controls and want a high 20 kg payload at the lowest listed price.	Arm-only listing; you must source a controller, pendant, and cabling.
Nachi MZ07	You want a complete arm with controller and teach pendant, ready to integrate.	Highest listed price in this group.
Staubli RX130-B	You prefer a Stäubli arm and can match it to Stäubli controls.	Listing describes an arm assembly, not a complete system.
Staubli RX90 CS7	You own a Staubli RX90 arm and need a spare or replacement controller.	It's a 1997 controller unit, not an arm, with a dent and missing key.

Product Notes

FANUC M-16IB/20 Industrial Robot Arm A05B-1216-B202 2005 ARM ONLY

At $1,800, this is the lowest-priced listing in the group. The title and description are explicit that this is an arm only: no controller, teach pendant, or cables included. It's a 2005 model with a 20 kg payload and 6 axes, giving you the highest payload capacity among the four. The description notes cosmetic wear, paint loss, and prior industrial use, and the weight is listed at 486 lbs. If you're building a cell around an arm you already know, and you have a compatible controller, this could be a cost-effective starting point. The catch is filling in the missing components and handling the heavy shipping.

Nachi MZ07 6-Axis Industrial Robot Arm W/ CFD Controller & Teach Pendant 7kg

At $7,999.99, this is the most expensive and the most complete. It includes the CFD controller and teach pendant, so it's the only option here that can go from crate to commissioning without sourcing extra parts. The arm offers a 7 kg payload and 723 mm reach, which fits lighter automation and R&D tasks. The seller mentions serving the test & measurement, automation, and R&D fields since 1997. If you want a ready-to-integrate arm, this is the one. The trade-off is the price premium for that completeness, so you'll want to confirm the 7 kg payload is enough for your application.

Staubli Industrial Robot Arm Automation Equipment RX130-B

At $3,410, the Stäubli RX130-B sits between the FANUC and Nachi in price. It's a French-made arm assembly with standard construction, designed around Stäubli robotics controls. The description emphasizes precision and efficiency for industrial automation. Since the listing highlights the arm assembly, the control side is a separate consideration. For Stäubli shops, this could be a solid mid-range arm. For buyers looking for a complete system, the full control package isn't what's being advertised here.

Staubli RX90 CS7 6-Axis Industrial Robot Arm Controller 1997 READ

This $2,499.99 listing is a controller, not a robot arm. The 1997 CS7 unit comes with a dent on the corner and a missing key, and is sold as used industrial surplus by American Industrial Supply Co. The listing clearly states that only what's shown and listed is included. If you already own a Staubli RX90 arm and need a spare or replacement controller, this is the only controller in this comparison. It's not a direct alternative to the other arms unless you have the arm that it controls. The cosmetic damage is disclosed, so you can factor that into your decision.

Final Recommendation by Use Case