The Nachi SRA series(SRA100/SRA210/SRA166L/SRA120EL)Â offers a versatile range of 6-axis articulated arm robots designed to excel in diverse industrial applications, particularly spot welding.
Additional Benefits:
- High Precision: Achieve consistent and accurate weld quality with minimal errors.
- Flexibility: Adapt to various tasks beyond spot welding, including machine tending, material handling, and assembly.
- Compact Design: Minimize workspace requirements with the slim and space-saving design.
- Easy Maintenance: Simplified design allows for easier parts replacement and inspection, reducing downtime.
Choose the Right SRA Robot:
The best model for you depends on your specific needs:
- Payload Requirements: Match the robot’s capacity to the weight of your welding guns and tooling.
- Workspace Access: Consider the reach needed for your application and whether an extended arm is beneficial.
- Production Demands: Select the robot that best suits the complexity and intensity of your tasks.
World Class Speed Robot
Easy to use
Energy saving
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Exterior dimensions and operating envelope
(*1)Â The specifications are subject to changes without notice.
(*2)Â In case that an end user uses this product for military purpose or production of weapon, this product may be liable for the subject of export restriction stipulated in the Foreign Exchange and Foreign Trade Law. Please go through careful investigation and necessary formalities for export.
Robot specifications for SRA100/SRA166/SRA210/SRA166-L/SRA120-EL
| Robot model | SRA100 | SRA166 | SRA210 | SRA166/L | SRA120/EL | |||
|---|---|---|---|---|---|---|---|---|
| Structure | Articulated construction | |||||||
| Number of axes | 6 | |||||||
| Drive system | AC servo system | |||||||
| Max. operating area (rad[°]) |
Arm | J1 | Swivel | ±3.14 [±180] | ||||
| J2 | Back & forth | +1.05 to -1.40 [+60 to -80] | ||||||
| J3 | Up & down | +2.62 to -2.56 [+150 to -146.5] |
+2.62 to -2.33 [+150 to -133.4] |
+2.62 to -2.23 [+150 to -127.7] |
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| Wrist | J4 | Rotation 2 | ±6.28 [±360] | |||||
| J5 | Bend | ±2.36 [±135] |
±2.27 [±130] |
±2.36 [±135] |
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| J6 | Rotation 1 | ±6.28 [±360] | ||||||
| Max. velocity (rad/s[°/s]) |
Arm | J1 | Swivel | 2.37 [136] |
2.18 [125] |
2.01 [115] |
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| J2 | Back & forth | 2.36 [135] |
2.01 [115] |
1.83 [105] |
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| J3 | Up & down | 2.36 [135] |
2.11 [121] |
1.97 [113] |
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| Wrist | J4 | Rotation 2 | 4.19 [240] |
3.14 [180] |
2.44 [140] |
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| J5 | Bend | 4.07 [233] |
3.02 [173] |
2.32 [133] |
3.02 [173] |
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| J6 | Rotation 1 | 6.31 [351] |
4.54 [260] |
3.49 [200] |
4.54 [260] |
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| payload (kg) |
Wrist | 100 | 166 | 210 | 166 | 120 | ||
| Forearm *1 | 45 (maximum 90) | |||||||
| Allowable static load torque (N·m) |
J4 | Rotation 2 | 580 | 951 | 1,337 | 951 | 687 | |
| J5 | Bend | 580 | 951 | 1,337 | 951 | 687 | ||
| J6 | Rotation 1 | 290 | 490 | 720 | 490 | 353 | ||
| Max. allowable moment of inertia *2 (kg·m2) |
J4 | Rotation 2 | 60 | 88.9 | 141.1 | 88.9 | 60 | |
| J5 | Bend | 60 | 88.9 | 141.1 | 88.9 | 60 | ||
| J6 | Rotation 1 | 30 | 45 | 79 | 45 | 30 | ||
| Max. reach (mm) | 2,654 | 2,674 | 2,951 | 3,099 | ||||
| Position repeatability *3(mm) | ±0.1 | ±0.15 | ||||||
| Installation | Floor mounted | |||||||
| Ambient conditions *4 |
Temperature : 0 to 45°C |
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| Robot mass (kg) | 960 | 990 | 980 | 985 | ||||
1[rad]=180/π[°] 1[N·m]=1/9.8[kgf·m]
(*1)Â Load specification of number 1 arm varies according to wrist load conditions and installation position.
(*2)Â Note that the allowable moment of inertia of wrist varies with the wrist load conditions.
(*3)Â JIS B 8432 compliant.
(*4)Â Permitted height is not higher than 1,000m above sea level. If used in higher place, permitted temperature is affected by height.
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