"气吸式捡拾机" can be translated as "pneumatic suction-type picker" or "air-suction picking machine".
"Pneumatic suction-type" emphasizes the principle of using pneumatic (air-powered) suction for the picking action.
"Air-suction" directly describes the method of using air suction to pick up items.
"Picker" or "picking machine" refers to the device or machine that performs the picking function.
Both translations are accurate and convey the meaning of the original Chinese term. You can choose the one that best fits your context or preference.