Nachi
Nachi SRA100B/100J Spot Welding Robots

Manufacturer: NACHI
Model: SRA100B/100J
Features
Compact
Compact arm construction allows installation in small places.
Robot base: 500 mm wide
Interference radius of frame: 366 mm
High performance
High-speed control of SRA series ultra-fast robots Provides world-class production efficiency.
Plenty of lifting power. Payload capacity: 100 kg Wrist torque: 580 N·m (J4 and J5 axes)
Controller
FD11
Operating range
The specifications are subject to changes without notice.
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.
Specification
Item | SRA100B-01 | SRA100J-01 |
---|---|---|
Structure | Articulated construction | Articulated construction |
No. of axes | 6 | 6 |
Drive system | AC servo system | AC servo system |
Max. working envelope | ||
Arm – J1 (Swivel) | ±3.14 rad (±180°) | ±3.14 rad (±180°) |
Arm – J2 (Horizontal) | -2.09 to +1.05 rad (-120° to +60°) | -2.18 to +1.57 rad (-125° to +90°) |
Arm – J3 (Vertical) | -2.62 to +3.14 rad (-150° to +180°) | same |
Wrist – J4 (Rotation 2) | ±6.28 rad (±360°) | same |
Wrist – J5 (Bend) | ±2.36 rad (±135°) | same |
Wrist – J6 (Rotation 1) | ±6.28 rad (±360°) | same |
Max. speed | ||
Arm – J1 (Swivel) | 2.37 rad/s (136°/s) | same |
Arm – J2 (Horizontal) | 1.92 rad/s (110°/s) | 2.01 rad/s (115°/s) |
Arm – J3 (Vertical) | 2.27 rad/s (130°/s) | 2.79 rad/s (160°/s) |
Wrist – J4 (Rotation 2) | 4.19 rad/s (240°/s) | same |
Wrist – J5 (Bend) | 4.07 rad/s (233°/s) | same |
Wrist – J6 (Rotation 1) | 6.13 rad/s (351°/s) | same |
Payload | Wrist: 100 kg Forearm (*1): 25 kg (max 45 kg) | Wrist: 100 kg Forearm (*1): 25 kg (max 45 kg) |
Allowable static load torque | ||
J4 (Rotation 2) | 580 N·m | 580 N·m |
J5 (Bend) | 580 N·m | 580 N·m |
J6 (Rotation 1) | 290 N·m | 290 N·m |
*Max. allowable moment of inertia (2) | ||
J4 (Rotation 2) | 45 kg·m² | 45 kg·m² |
J5 (Bend) | 45 kg·m² | 45 kg·m² |
J6 (Rotation 1) | 22.7 kg·m² | 22.7 kg·m² |
Max. reach | 2,071 mm | 1,634 mm |
*Position repeatability (3) | ±0.06 mm | ±0.06 mm |
Installation | Floor mount | Floor mount |
*Ambient conditions (4) | Temp: 0 to 45°C Humidity: 20–85% RH (no condensation) Vibration ≤0.5G (4.9 m/s²) | Same |
Weight | 690 kg | 670 kg |
Load specification of number 1 arm varies according to wrist load conditions and installation position.
Note that the allowable moment of inertia of wrist varies with the wrist load conditions.
JIS B 8432 compliant.
Permitted height is not higher than 1,000 m above sea level. If used in higher place, permitted temperature is affected by height.