© Copyright 2005, The Oilgear Company. All Rights Reserved. August 21st, 2008 
   
 
   
 
Industries  
   
   
 
Extrusion
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Oilgear has specialized in Extrusion press technology since 1928 and is dedicated to the Extrusion market. Our energies are focused on developing long term relationships with OEM’s and Extruders. We have developed solutions driven by customer feedback with features and proven reliability derived from hundreds of press installations worldwide. Today, industry economics demand maximum reliability and minimal dead cycle time with the focus on increased productivity and quality.
Below you will see our commitment to relationship building and the investment made in modern Hydraulic and Control solutions for the Global Extrusion Market.
 

Manifolds
Oilgear uses compact, state of the art, integrated manifolds. This enables minimal piping for large flow capacity systems.
Designed with smooth shifting, high response, slip-in cartridges, these manifolds result in shock-free switching with reduced dead cycle time, reduced system shock and reduced system leakage - all keyed to saving your investment dollars.

 

System Installation Alternatives
Reservoirs in our systems are designed around your installation requirements. The pumps can be mounted on top of the main reservoir, skid mounted under or beside the main reservoir or they can be mounted vertically in-tank.
A complete system design includes system heating plus cooling and filtration requirements to increase the life of your system and to reduce maintenance of the installation. All reservoirs are designed to provide exceptionally quiet operation and accessibility for service. Top and bottom baffle construction reduces turbulence and settles out dirt and air.
Standard reservoirs are sized from 1,000 gallons(3,800 liters) to 6,600 gallons(25,000 liters) rated capacity. Special reservoirs of any size are available.

 
Control Systems
Oilgear has the in-depth knowledge and is the recognized leader of quality press hydraulics. We thoroughly understand the equipment and the controls necessary for the extrusion industry.
In 1954, we began to incorporate servo-hydraulics to control our systems and now stand alone as the only hydraulics manufacturer that designs and produces electro-hydraulic systems in our own facilities.
In recent years, more and more presses and peripheral equipment have been automated with the use of PLC's coupled with P.C.'s. This integrated network allows plants to control all phases of the extrusion operation, providing effective management of the entire facility.
If your extrusion operation has a relay logic system, a complete electronic system, or a mix of technologies, we have the ability to interface with it.
 
 
Basic Pump Control
We can convert an outdated manual, pneumatic, hydraulic or electronic control to a modern EPC or (Electronic Pump Controller) that will interface with your relay logic system or a PLC, and allow for all of the following:
  Unique pump commands for each machine function.
  Pressure unloading to eliminate relief valve operation.
  Electronic ramping to reduce system shock.
 
Extrusion Press Controller
A more sophisticated system would consist of a controller engineered specifically for extrusion presses. It would contain the controller and the following additional features:
  Closed-loop Constant Ram Speed Control (+/- 0.1% of maximum ram extrusion speed) providing increased average extrusion speed and decreased scrap.
  Pressure Unloading, which reduces relief valve operation, reduces the energy wasted (heat in the system) and minimizes the need to operate costly cooling equipment.
  Pressure Rate Control, controls the rate of pressure build-up and limits ram extrusion speed which will decrease cycle time and increase die life. This feature is ideal for die trials and ceramic dies.
  Horsepower Limiting
  Command Ramping
  Electronic Limit Switching
  Electronic Pressure Switching
  Interfacing with relay logic systems
 
Complete PLC Systems
A complete Programmable Logic Controlled system allows you to control and monitor all phases of the extrusion operation. Available features include:
  Closed-loop Constant Ram Speed Control (+/- 0.1% of maximum ram extrusion speed) providing increased average extrusion speed and decreased scrap.
  Pressure Unloading, which reduces relief valve operation, reduces the energy wasted (heat in the system) and minimizes the need to operate costly cooling equipment.
  Pressure Rate Control, controls the rate of pressure build-up and limits ram extrusion speed which will decrease cycle time and increase die life. This feature is ideal for die trials and ceramic dies.
  Horsepower Limiting
  Modem connection to Oilgear for assistance in trouble-shooting, making changes or making additions to logic.
  Automatic Electronic Main Ram Limit Switching with position checks.
  Electronic Pressure Switching for main ram.
  Well organized program for fully interlocked press operation and not just a translation of relay logic.
  Burp Cycle Control
  Butt discard detection - will disable container forward circuit if interference is detected.
  Meets or exceeds ANSI B11.17-1982.
  Main ram interference detection; ram forward circuit will be disabled in the event of misalignments or interference.
  Operator adjustable butt length.
  Interface with peripheral equipment.
  Billet flash protection.
  All I/O's including spares wired to terminals.
  Minimum 15% spare I/O and panel space for future expansion.
  Enclosure fitted for air conditioning.
  All PLC outputs are individually fused and have blown fuse indicator lights.
  Unique pump commands for each press function.
Adding a modern man-machine interface touch screen replaces the vast majority of pushbuttons on your operator station.
It will display any variable that can exist in the PLC. For example: ram velocity, position, oil temperature, pressures, furnace zone temperature, dead cycle time, etc...
The operator can change set-up parameters with a touch of the screen.