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mountainair
05-25-2011, 04:47 PM
I am new to this forum so forgive me if I post this question in the wrong place or duplicate it. I am building a 30 inch drum type brush cutter for my takeuchi tb 035 excavator.It has 15 gpm aux. flow and working pressure of 2845 psi. The cutter drum needs to turn @ 1800 - 2000 rpms. Does anyone know what size hydraulic motor and crossrelief valve I should get? Thanks mountainair

LandscaperPro
05-25-2011, 05:05 PM
Sorry don't know too much about that but you might try asking tech support at Hydro Gear.

minimax
05-25-2011, 08:42 PM
You need to get a hyd motor gpm to cubic inchs chart from the hyd. motor manufacturer.You can use a check valve "t" in as a relief, your machine has a relief already.

minimax

mountainair
05-25-2011, 11:17 PM
I have contacted several hydraulic suppliers with this question, most refered me to someone else, some have not answered yet. 15 gpm =3465.00150 cubic inch. I think this would be a gear motor but they are in the 4,5,600 dollar range and i want to get the right one first. Didnt know if anyone had a brush cutter like this that would get the model number off of it-even if the gpm flow was different the motor family and duty rating should be the same. thanks again mountainair

mountainair
05-26-2011, 10:38 PM
I found out today that a motor with 1.8 cubic inch displacement @ 15gpm will equal 1900 rpm, but are still researching and wondering,thanks for the help

AWJ Services
05-27-2011, 10:18 AM
There is more to picking the hyd motor than figuring the output rpm. Each motor will have different operating charestics and needs to be matched to the application. The motor manufacturer will be able to match the motor to your application.

http://www.surpluscenter.com/hydraulic.asp?catname=hydraulic

They have a good assortment on motors.

mountainair
05-27-2011, 07:58 PM
thanks for the info. Im checking with suplus center and getting my project closer to the fabrication stage

AWJ Services
05-27-2011, 10:23 PM
thanks for the info. Im checking with suplus center and getting my project closer to the fabrication stage

I would love to hear more about it. I enjoy fabricating..

mountainair
05-27-2011, 11:10 PM
I will keep you posted on progress hope to be finished in 4-5 weeks(only work on projects after work in evenings) thanks for all the help, I value all input thanks again mountainair