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Toshiba Machine says rigid gears on each axis of its TH-A SCARA robots provide quicker acceleration/deceleration, longer life and easier maintenance. Additionally, axis one and axis two combine to provide a nearly 360-degree working area. Aside from the gears and working envelope, the TH-A series is nearly identical to the company’s TH series robots.
Constructed of a rigid aluminum casting, the robots’ arms range in length from 650 to 1,200 mm and accommodate payloads ranging from 10 to 20 kg. Three models are available: TH650A, TH850A and TH1050A. Maximum payload mass for the TH650A is 10.0 Kg and maximum composite speed is 7.52 m/s, while the TH850A and TH1050A can each carry 20.0 Kg (TH850A maximum speed is 8.13 m/s and TH1050A reaches up to 9.15 m/s).
The TH650A achieves 0.2-mm deflection with the maximum payload, while the TH850A and TH1050A achieve deflection of less than 1 mm with the maximum payload. Combined with longer arm length, higher payloads make the TH850A and TH1050A suitable for production lines and for handling large materials. Additionally, vertical vibration from the rebound of these heavier materials is minimized, the company says.
All TH-A series robots feature rigid construction for long life, flexible piping positions and internal wiring harness to reduce wear and protect against external contaminants. A sealed labyrinth structure is standard, making the robots suited for clean-room applications, the company says. The TS2100 control uses the SCOL programming language, which is standard throughout the company’s SCARA line to ease robot-to-robot integration. Options include ceiling mount design and protective bellows for the Z axis, among others.