Which device includes a vacuum cup, venturi, vacuum generator, check valve, and muffler?

A vacuum lifter is a device designed specifically to handle and lift materials using suction created by a vacuum. This device incorporates several components that enhance its functionality and efficiency. A vacuum cup creates the necessary suction to grip objects securely, while a venturi serves to create a vacuum by using compressed air. The vacuum generator is responsible for producing the vacuum required for operation, and the check valve ensures that the vacuum remains intact by preventing backflow. Moreover, the muffler is utilized to minimize noise generated by the device during operation.

In contrast, other options such as a vacuum hoist, pressure hoist, and pressure lifter do not incorporate all of these specific components designed for generating and maintaining a vacuum. Vacuum hoists may utilize similar principles but do not necessarily include the entire range of components like the vacuum lifter does. Pressure-based options, on the other hand, work on different principles that do not involve vacuum generation, therefore lacking elements such as vacuum cups and generators.

Thus, the answer identifies the vacuum lifter as the correct device that integrates all mentioned components, making it uniquely suited for tasks that involve lifting objects using suction.