Hydraulic dental chairs are widely used in the United States. Most dental chair brands sell hydraulic chairs because even if a very heavy person sits on the chair, the running speed of the hydraulic chair will not decrease. The hydraulic system is powerful and very reliable, so hydraulic dental chairs are much more used on the market.
There are two models of ADS hydraulic dental chair AJ15 and AJ16. They both use the Japanese hydraulic system as other major dental chair manufacturers in the United States, and their reliability has been proven.