i want miniature hydraulics to put for my dumper truck i have made a dumper truck please tell me if anybody knows any outlet in india.

use  pneumatic more than hydraulics.....

pressuring the fluid will the issue...  and u also get ready pressurized cans available at HK......

u can modify and use these.....

http://www.hobbyking.com/hobbyking/store/__18241__2_Way_Air_Retract_Landing_gear_System_Trike_Small_.html

http://www.hobbyking.com/hobbyking/store/__8520__Air_Cylinder_6xL60mm_Spring_Close_.html

http://www.hobbyking.com/hobbyking/store/__8521__Air_Cylinder_6xL80mm.html

http://www.hobbyking.com/hobbyking/store/__8353__Air_Actuator_40mm.html

http://www.hobbyking.com/hobbyking/store/__8513__Air_Operated_Switch_3_way_supply_.html

thanks for your reply but i had seen 2 way retract system but i want hydraulics cause they are better and carry more weights

Where we use them ? can we use these kit to replace RC Car suspension

Or just for Hydrolic Arms like landing gear etc ?

Prabhu.. whats the size of your dump truck..? can make actuators by screw jacks, can make from camera film winders.. will take a good loads, up to 1:18 scales.. can also use sliding servos for miniatures..

roopeshkrishna my truck scale is 1:18 and i want hydraulic for dumper to move up and down

Prabhu.. its the nice scale to work with ordinary servos and plastic gear boxes.. a screw jack is the best option and it also gives you a movement like to the hydraulics.. a powerful cam also do the job nicely.. or a simple push rod, actuated by a standard servo also will be best.. can hide it within chassis.. and can add a ball point pen body as the actuator cylinder.. works nicely.. and with this you can also stop the tray to any desired position, as the control is proportional.. 

thanks roopeshkrishna i will try to do