help with pump selection

[MariaRebecca]

I'm going to use a hydraulic motor to move a conveyor. I've selected one based on torque and speed that it's needed. The specs are as follows:

speed: 279 RPM
flow l/min 265
torque: 3440
pressure: 260 psi

What I need to know is how do I know what wha kind of pump to use, and how to select the correct one to pair with the motor.

I'd appreciate any help . Thanks a lot.

 

[hydroman247]

What type of motor is that? It has a very low pressure rating and very high flow. A pump that produces that sort of flow will be quite a lot larger than what you actually require if you go up in pressure and down in flow.

(you can't escape me)

 

[Artisi]

Why not just contact a hydraulic motor / pump supplier and save yourself and others all the problems associated with such a simple request.

It is a capital mistake to theorise before one has data. Insensibly one begins to twist facts to suit theories, instead of theories to suit facts. (Sherlock Holmes - A Scandal in Bohemia.)

 

[bimr]

http://www.automation.com/library/a...-control/selecting-the-optimal-conveyor-drive

 

[MariaRebecca]

What type of motor is that? It has a very low pressure rating and very high flow. A pump that produces that sort of flow will be quite a lot larger than what you actually require if you go up in pressure and down in flow.

Eaton 10,000 series disc valve motor. I selected it because it works at low speed with very hight torque. But dont know much abot the pressure and flow issue. Im starting from scratch so I thought I should select the motor and then go backwards to the pump and so on...

 

[MariaRebecca]

Why not just contact a hydraulic motor / pump supplier and save yourself and others all the problems associated with such a simple request.

Im absolutely going to do that. But this is part of a college project so I need to justify my selection.

 

[micalbrch]

College project? Homework questions are frowned upon here.

 

[bimr]

Use a gear motor (hydraulic power unit) with a pressure-compensated pump set to deliver the required pressure and a proportional valve to control the output from the gear motor.

 

[DubMac]

What Artisi said.

 

[Artisi]

As a (now ex) trainer I would be happy to see the thought and work put into a project to establish what is needed, why and what you intend doing about it. Making contact with a supplier with all relative, correct data, presented logically would always win points from me, more so than running around in circles getting nowhere. Alternately request the necessary tech data / brochures etc from a supplier and attempt your own selection.

It is a capital mistake to theorise before one has data. Insensibly one begins to twist facts to suit theories, instead of theories to suit facts. (Sherlock Holmes - A Scandal in Bohemia.)

 

[Jeccyka]

We are pump supplier. basically, need to know your motor type and shaft size and use this pump for what? etc.
For more info. can contact via by e-mail.