Microtech Laboratory for small direct drive motors

Table of contents

１．What is Hollow-shaft motor?

２．Advantage

３．Lineup of μDDmotors(Hollow shaft type)

1.What is a hollow-shaft motor?
　　A hollow-shaft motor is the motor that has a through hole in the center.

2.Advantages
　　Cable, air tubes lasers and so on are possible to penetrate the motor's hollow, so it is possible to save s space and improve an accuracy of the device.

MDS/MDH-20 series

The smallest through- shaft servomotor in the world.

Perfect for end effector(hand,gripper,Zθ）with through-shaft.
It could be used for small hand in combination with low slowdown rate gear.

■Body diameter：φ21mm
■Body length：31.5/37.5/43.5mm
■Max torque ：40/90/130mN・m
■Max speed：3,000rpm
■Max resolution：288,000P/R(edge count)、18bit
■Hollow diameter：φ2.6mm(MDH type)

MDS/MDH-30 series

Perfect for high-precise dispenser and small gimbal driving.

It is tapped in the hollow shaft,and penetrates the air tube by installing a rotary joint.

■ Body diameter： φ30mm　
■ Body length： 32/38/44mm
■ Max torque： 140/280/420mN・m
■ Max speed： 1000rpm
■ Max resolution: 432,000P/R（edge count）、19bit
■ Hollow diameter： φ4mm（MDH type）

MDH(12)-40series

Series of MDH-40 with larger internal diameter.
Internal diameter of φ12mm allows passing cable and laser etc.

■Body diameter：φ40mm
■Body length：31.5/37.5/43.5mm
■Max torque：0.33/0.70/1.0N・m
■Max speed：450rpm
■Max resolution：1,296,000P/R(edge count)
■Hollow diameter：φ12mm

MDH-60series

Small-sized large bore hollow shaft.
Perfect for end effector and robot joint etc.

■Body diameter：φ60mm
■Body length：31.5/37.5/43.5mm
■Max torque：1.1/2.1/2.7N・m
■Max speed：300rpm
■Max resolution：2,000,000P/R(edge count)、20bit
■Hollow diameter：φ20mm

MDH-70series

Small-sized large diameter hollow shaft.
Perfect for index table, It can be replaced with a rotary actuator, robot (correspond to elbow and shoulder.)

■Body diameter：φ70mm
■Body length：31.5/37.5/43.5mm
■Max torque：1.0/2.2/3.1N・m
■Max speed：200rpm
■Max resoution：2,592,000P/R(edge count)、21bit
■Hollow diameter：φ25mm