Nachi SRA220H Series, Manual

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Installation procedure
While robot moves, large reaction force is applied to the swiveling base from all directions.
Consequently, the robot should be installed in such a manner that the foundation endures not
only the static loads but also the reaction force caused by robot movement.
【
SRA220H-01
】
Repair uneven spots, cracks, and others on the floor, and then install the robot by following to
the table below. If thickness of floor concrete is less than needed level, an independent
foundation should be constructed. Inspect the foundation prior to the robot installation.
【
SRA220HV-01
】
Repair uneven spots, cracks, and others on the floor, and then install the robot under hanger. If
hanger can not endure the generated force and floor concrete is not enough to endure the
hanger, an independent foundation should be constructed. Inspect the foundation prior to the
robot installation.
When installing this robot, please utilize “turning over fixture” option.
Robot Model SRA220H-01 SRA220HV-01
Thickness of floor concrete Not less than 160 mm --- *4
Installation parts *1
8 bolts of M20 (JIS: Strength class 12.9) not less than 65mm
8 plain washers of not less than 4.5 mm in thickness
and HRC35 in hardness
Tightening torque *2
560
±
30 N m
Allowable repeated tensile *3
Approximately
30,000 N
*1 : Installation parts are not accessory of robot.
*2 : Apply a coating of lubricating oil to the threaded parts of bolts, and then tighten bolts by using torque wrench to the
specified tightening torque.
*3 : This tensile is per installation bolt when robot is installed with all bolts written in table above.
*4 : Inverted type robot can not been installed on floor.