The Sankyo SR8437 SCARA robot arm is a well built, rigid arm with good repeatablity.

SCARA is an abbreviation for "Selective Compliance Assembly Robot Arm."

These robots are excellent pick and place robots. They are useful for precise positioning of components for assembly and for very light machining.

We have had excellent results with this arm and very good support from AES motomation.

Mechanical specifications of the SR8437 SCARA
Degrees of freedom	Four: T1, T2, Z, Roll
Working Range	T1 + 117 deg T2 + 135 deg Z 250 mm Roll + 360 deg
Maximum speed	T1 5200 mm/sec T2 5200 mm/sec Z 610 mm/sec Roll 510 deg/sec
Repeatability	X-Y + 0.03 mm Z + 0.02 mm Roll + 0.02 deg
Payload	2 kg typical 10 kg max (with reduced acceleration)
Maximum rotating torque	6 nm
Arm weight	90 kg
Interface at end-effector	15 electrical conductors 3 pneumatic tubes 1 camera-mount

Mechanical schematic of the SR8447, which is similar to the SR8437.
Dimensions are in mm.

References