Precise positioning of semi-conductor wafers during SCARA assembly operations requires instantaneous braking and holding power while minimizing heat in the system. The latest compact and slender Miki Pulley BXR-LE brake models provide the needed perfectly controlled braking in a confined area of the system using minimal power.
Cycle time is critical in semiconductor assembly. The BXR-LE braking response and holding power make it suitable for these high-speed applications. The Miki Pulley BXR-LE brake is a power-off engaged brake that holds a semiconductor wafer in place. For subsequent operations, the brake is energized which disengages the rotor disc for the next assembly operation. The BXR-LE brake uses 24 VDC for a split second to overcome compression spring inertia to open the brake, then consumes only 7 VDC by using the BEM power control module.
Because these semi-conductor assembly operations are fully automated for long-term operation, dependable, maintenance-free braking is essential for their uninterrupted operation. That is where Miki Pulley’s BXR-LE brakes excel for semi-conductor assembly as well as bio-med and packaging applications using SCARA automation.
When compared to most other electric brakes, the revolutionary BXR-LE design provides just one-third power consumption and heat generation in one-half the overall size thickness. Specifications are:
• Maximum RPM: 6000
• Static friction torque range: 0.044 to 2.36 ft.lb. (0.06 to 3.20 Nm)
• Ambient operating temperature 14 – 104°F (-10 to 40°C)
Miki Pulley
www.mikipulley-us.com
Filed Under: Assembly automation, Coupling Tips