FAQ-Lecture 12 To 14
FAQ-Lecture 12 To 14
FAQ-Lecture 12 To 14
HYDRAULIC ACTUATORS
FREQUENTLY ASKED QUESTIONS
1. What is the function of a hydraulic cylinder in a hydraulic system
Function of hydraulic cylinder is to provide linear motion. It converts the fluid energy into
mechanical energy ( linear movement).
2. When is a telescoping cylinder used?
A telescoping cylinder is a cylinder employing several pistons which telescope into each other.
This cylinder is used when a relatively long working stroke is needed for a short cylinder
length.Telescopic configuration cylinders are used in a variety of applications that require the use
of a long cylinder in a space-constrained environment.
3. Explain the operation of Tandem type cylinder and mention its application
Tandem Cylinders
larger flow rate than a standard cylinder to achieve an equal speed because flow must go to both
pistons.
many feet. The maximum operating pressure is the maximum working pressure the cylinder can
sustain. The bore diameter refers to the diameter at the cylinder bore. The rod diameter refers to
the diameter of the rod or piston used in the cylinder.
9. Name the material that are commonly used to manufacture i) cylinder covers ii) Piston
rods iii) pistons iv) Tie rods
High Precision Seamless Steel
Cylinder
tube,ST42,ST44,ST5216Mn 27SiMn
25Mn St52 SAE1026, plasma nitrited
Forged steels, C45ground- hardened and hard
Piston rod
chrome plated.
4140HT steels, 1045 steel with heat treatment
11. Mention the different types of mountings used in fixing the hydraulic cylinders
Pivoted center line mounts
Tie rod
Clevis mounted
Center truunion
Flush mounts