Schunk develops ERD miniature rotating module for electronics assembly
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The ERD rotary module from Schunk has been developed for assembly applications in the electronics, consumer goods and pharmaceutical industries.
ERD continuously rotating miniature module is equipped with two integrated air feed-throughs, four electric feed-throughs and one SIL2-certified absolute encoder measurement system. It enables space-saving high-torque, high speed assembly systems to be implemented that also comply with the highest Machine Directives standards, says Schunk.
The rotary module is driven by a brushless synchronous motor with permanent excitation. Its special geometry ensures high dynamics and acceleration. Additionally, with the optimised air feed-through systems, pneumatic actuators connected to the module can be actuated at greater speeds.
The absolute encoder measurement system eliminates the need for time-consuming reference runs during start-up and after an emergency shutdown. Furthermore, the repeat accuracy is to a specified value of 0.01°. A large number of pairs of poles ensure the module generates a high nominal torque of up to 1.2 Nm even at low speeds.
Almost zero wear generating parts support a long working life. Either a Bosch-Rexroth IndraDrive CS or Bosch-Rexroth IndraDrive Advanced drive controller can be used.
The ERD module is available in sizes 04, 08 and 12; these designations also correspond to the respective nominal torques of 0.4, 0.8 or 1.2 Nm. The modules can optionally be made to comply with protection class IP40 or IP54.
