Question

How does a a dentist chair work and the system it uses? Pneumatic or Hydraulic system

Answer 1

no no. it's not hydraulic. its pneumatic system

Answer 2

i must think that it is hydraulic, since if i would jump in the chair, it wouldn't give, like a desk chair does. Hydraulics (fluids) are much less compressable than pneumatics(gases). So hydraulic is my answer. How does it work? -> a cylinder (piston) with hydr. fluid in it is compressed, and the fluid moves through a tube, to another cylinder(second piston), with bigger diameter, and the force needed to lift the second piston is reversely proportional to surface of this piston.
see
http://en.wikipedia.org/wiki/Jack_(device)
and on that page about Hydraulic jack.
(their english is better than mine)

Answer 3

no these are pneumatic. coz my cousin in the industry of these pneumatic chairs therefore i am surely know about these. well here is the working. i gave this answer from the account which is now hacked.
http://answers.yahoo.com/question/index?qid=20081121111111AAf6xga

Answer 4

Fretje you got picture for the explaination of " How does it work?" part

Answer 5

Pictures......

Answer 6

@Shayaan_Mustafa : still answer is hydraulic, not pneumatic. Yes office chairs are pneumatic, dentist chairs not.

Answer 7

@michu :

Answer 8

@michu :

Answer 9

um the reason you post 2 the same picture?

Answer 10

How does it work? -> a cylinder (piston) with hydr. fluid in it is compressed, and the fluid moves through a tube, to another cylinder(second piston), with bigger diameter, and the force needed to lift the second piston is reversely proportional to surface of this piston.

Answer 11

This part you got picture for it please?

Answer 12

sorry, twice same picture, but second time @michu

Answer 13

o yeah no worry it isn't your fault.

Answer 14

i think something like this