Ultra-fast spot welding robot

SRA series robots and their FD controllers are ideally suited to spot welding applications. The SRA robots are highly rigid and weight less, providing faster motion and less vibration.


SRA Series

The Ultimate Spot Welding Robot. Using higher speeds and vibration damping properties, we greatly improved productivity by shortening cycle times 30% improvements were made in three areas, weight reduction, higher rigidity, and faster controls. The compact design allows for high density installation layouts and maintenance is streamlined making periodic inspections and parts replacement easy to do. The lighter weight and latest in motor drive controls have reduced power consumption by 15% over existing models reducing environmental impact.

Features and Benefits

  • Improved Productivity
    • High speed gun motor control for fast open / close
    • High acceleration SRA robot for quickest movement between welds, SRA robots are the world’s fastest in their payload class
  • Extensive product line
    • SRA comes in various payloads from 100kg to 250kg
    • Standard floor mount models, invert mount model, long reach models over 3 meters.
  • Improved Weld Quality
    • Pressure calibration up to 10 points for more accurate pressure through the spot welding range
    • Nachi’s integrated spot weld timer AC and DC versions available now. Full programming from the robot teach pendant, weld results storage for traceability, full integration for fastest possible communication.

SRA Compact

Compact General Stats

SRA100B

 Reach: 2071mm

 Payload: 100kg

call_split Axes: 6

  Repeatability:±0.1mm

SRA100J

 Reach: 1634mm

 Payload: 100kg

call_split Axes: 6

  Repeatability: ±0.1mm



Working Envelope


SRA Standard Reach

Standard Reach General Stats

SRA100

 Reach: 2654mm

 Payload: 100kg

call_split Axes: 6

  Repeatability:±0.1mm

SRA166

 Reach: 2654mm

 Payload: 166kg

call_split Axes: 6

  Repeatability: ±0.1mm

SRA210(D)(V)*

 Reach: 2674mm

 Payload: 210kg

call_split Axes: 6

  Repeatability:±0.15mm


SRA240

 Reach: 2674mm

 Payload: 240kg

call_split Axes: 6

  Repeatability:±0.2mm

SRA250

 Reach: 2792mm

 Payload: 250kg

call_split Axes: 6

  Repeatability: ±0.2mm

*(D) - Foundry
*(V) - Ceiling Mount

Working Envelope


SRA Long Reach

Long General Stats

SRA120EL

 Reach: 3099mm

 Payload: 120kg

call_split Axes: 6

  Repeatability:±0.15mm

SRA133L

 Reach: 2951mm

 Payload: 133kg

call_split Axes: 6

  Repeatability: ±0.15mm

SRA166L

 Reach: 2951mm

 Payload: 166kg

call_split Axes: 6

  Repeatability:±0.15mm

Working Envelope


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