1. DESIGN AND FABRICATION OF PORTABLE PORT TYPE
INTRAGRATED HYDRAULIC BEARING PRESS
(CAPACITY 7TON)
ABSTRACT:
 Portable Port type hydraulic power press is used to remove bearing from shaft in machine
assembly area or use to insert any kind of bush in force fit manner. So there is no need t go
machine shop to remove bearing from the assembly point. And it is portable one; we can take
this any where the machine assembling point may be
CONSTRUCTION WORKING OF HYDRAULIC CIRCUIT
Hydraulic cylinders (also called linear hydraulic motors) are mechanical actuators
that are used to give a linear force through a linear stroke. A. Hydraulic cylinders are able to give
pushing and pulling forces of millions of metric tons, with only a simple hydraulic system. Very
simple hydraulic cylinders are used in presses; here the cylinder consists out of a volume in a piece
of iron with a plunger pushed in it and sealed with a cover. By pumping hydraulic fluid in the
volume, the plunger is pushed out with a force of plunger-area * pressure. Here hydraulic circuit is
a port type integrated one. No hoses are found .oil will passes through port only and no separate
sump for oil storage .oil store around the shell of hydraulic cylinder itself
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2. CALCULATION OF HYDRAULIC CIRCUIT
The pushing or pulling force of a hydraulic cylinder is:
F = Ab * pb - Ah * ph
F = Pushing Force in N
Ab = (π/4) * (Bottom-diameter)^2 [in m2]
Ah = (π/4) * ((Bottom-diameter)^2-(Piston-rod-diameter)^2)) [in m2]
pb = pressure at bottom side in [N/m2]
ph = pressure at cylinder head side in [N/m2
ADVANTAGES
 It is portable one
 No hoses and electric equipment
 Less space only required for mounting
WORKING OPERATION:
This machine has a hydraulic cylinder and piston assembly. Which works in a port type
integrated hydraulic circuit. I this circuit there is no need for separate oil pump hydraulic houses,
D.C valves, Pumps etc. These all those things are integrated with the hydraulic cylinder itself

3. DESIGN AND FABRICATION OF PORT
TYPE INTEGRATED HYDRAULIC POWER
PRESS
CROSS RAILS
CYLINDER
PISTON
PLACE FOR HOLDING VICE
DETAIL SKETCH OF HYDRAULIC
CYLINDER
RELIF VALVE
PUMP
OIL INLET
OIL OUTLET
Key words-Design, Fabrication, working inspection, Report creating

4. WORKING PRINCIPAL DRAWING