Nachi
Nachi MZ Series Medium Payload Robot

Manufacturer: NACHI
Model: MZ Series: MZ35F/50F/70F/50LF
Features
Lightweight & Slim Body
5% lighter and 23% smaller installation area than previous models. Standard IP67 body for reliable use even in harsh environments.
Hollow Wrist
Built-in cable path improves wiring and tubing convenience.
High Speed & Precision
Faster and more accurate than conventional machines, boosting productivity.
Our conventional machine | MZ medium payload | Conventional model comparison | |
---|---|---|---|
Robot weight | 640kg | 608kg | -5% |
Installation area | 286.4 thousand mm² | 220.5 thousand mm² | -23% |
Application examples
Hollow wrist
Routing wiring through the hollow wrist avoids interference and enables flexible operation even in narrow spaces.
High speed and High precision
The high-rigidity design improves operating speed and position repeatability compared to previous models. Contributes to improved productivity.
Our conventional machine | MZ medium payload | ||
---|---|---|---|
Maximum Velocity | J1 | 180°/s | 185°/s |
J2 | 180°/s | 180°/s | |
J3 | 180°/s | 185°/s | |
J4 | 255°/s | 260°/s | |
J5 | 255°/s | 260°/s | |
J6 | 370°/s | 370°/s |
Robot dimensions and operating range

If an end user uses this product for military purposes or weapon production, the Foreign Exchange and Foreign Trade Control Law may impose export restrictions on the product. Please go through careful investigation and necessary formalities for export.
Specification
Item | Specification | ||||
Model | MZ35F-01 | MZ50F-01 | MZ70F-01 | MZ50LF-01 | |
Structure | Articulated robot | ||||
Axis | 6 | ||||
Drive System | AC servo motor | ||||
Maximum motion range | J1 | ±3.14rad (±180°) | |||
J2 | -2.36rad – +1.40rad (-135 – +80°) | ||||
J3 | -2.50 – +4.54rod (-143.5 – +260’) | ||||
J4 | ±3.32rod (± 190°) | ||||
J5 | ±2.53rod (±145°) | ||||
J6 | ±6.28rad (±360°) | ||||
Maximum Ve- locity’1 | J1 | 3.32rod/s | 3.23rod/s | 3.14rod/s | |
(188’/s) | (1857s) | (1807s) | |||
J2 | 3.14rod/s | 2.53rod/s | 2.44rad/s | ||
(1807s) | (1457s) | (1407s) | |||
J3 | 3.40rod/s | 3.23rod/s | 2.96rad/s | 3.14rad/s | |
(1957s) | (1857s) | (1707s) | (18O’/s) | ||
J4 | 4.88rad/s | 4.54rad/s | 4.19rad/s | 4.54rad/s | |
(2807s) | (2607s) | (24O’/s) | (2607s) | ||
J5 | 5.41rod/s | 4.54rad/s | 4.19rad/s | 4.54rad/s | |
(3107s) | (2607s) | (2407s) | (26O’/s) | ||
J6 | 7.33rad/s | 6.46rad/s | 6.11 rod/s | 6.46rad/s | |
(4207s) | (3707s) | (3507s) | (3707s) | ||
Maxmjm Payload | Wrist | 35kg | 5Ckg | 70kg | 50kg |
Maximum static load torque | J4 | 165N-m | 216N-m | 309N-m | 216N-m |
J5 | 165N-m | 216N-m | 309N-m | 216N-m | |
J6 | 102N-m | 147N-m | 170N-m | 147N-m | |
Maximum moment of inertia’2 | J4 | 16kg-m2 | 30kg-m2 | ||
J5 | 16kg-m2 | 30kg-m2 | |||
J6 | 5kg-m2 | 12kg«m2 | |||
Position repeatability’5 | ±0.06mm | ||||
Maximum Reach | 2102mm | 2502mm | |||
Air tubes | 010×2 | ||||
Application cables | 24 wires | ||||
Inst auction4 | Floor / Inverted | ||||
Mounting Condition | Ambient Temperature: 0 – 45’C’S | ||||
Ambient Humidity: 20 – 85%RH (No dew or frost allowed) | |||||
Vibration: Not more than 0.5G(4.9m/s2) | |||||
Protection class’6 | IP 67 equivalent | ||||
Clean rating | Equivalent to ISO Class 4 | ||||
Noise level’6 | 80dB | ||||
Robot weight | 593kg | 611kg |
1 rad = 180/π, 1 Nm = 1/9.8 kgfm.
Specifications may change without notice due to technical updates.
Explosion-proof version not available.
Maximum velocity values depend on operation program and wrist load.
Motion range may be limited in wall/tilted mounting (e.g., axis 1 reduced to 30°).
Usable up to 1000 m altitude; temperature limits apply above this level.
Do not use fluids that damage sealants (gasoline-based, chlorine, alkali, acids, solvents).
Protection rating: wire harness IP65, controller IP20.
Cleanroom use requires down-flow type installation (ISO 14644-1).