Description Jewelry Pneumatic Engraving Machine Technical Parameter:Product type: single-head jewelry pneumatic engraving machine, voltage: 110v/220v, power: 80w, adjustable speed: 1400r/min, air pressure: 0-3 kg/cm2. Precise & Adjustable Gauge:The pneumatic engraver features 1400 strokes per minute, a throttle bias adjustment valve for tailoring throttle response; a precise air regulator. Portable Design:Portable and compact, made of durable material; the manual engraver pneumatic machine is easy to move and work in different places with compact and light-weight design. Easy-to-operate Panel:Adopting user-friendly keyboard design & reasonable layout, easy to operate, intuitive & clear. The foot pedal is convenient for precise control. Various Application:Pneumatic hand engraving machines are suitable for jewelry, crafts, wrought iron & other industries and can be regarded as a good helper for engravers.