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Participant

Join Date: Jul 2017
Posts: 4

CNC Hydraulic System

08/22/2017 9:17 PM

Hello Dear

Hope going well & like to inform you that we have a CNC press break machine, now we are facing a problem with hydralic system. The problems are below

1. Firstly the machine was switch off about 2 year and many times try to start the machine , In this 2 year the hydraulic beam goes 53mm cross that means the beam is unlevel (53 mm).

2. Only motor are running for hydraulic system

3. When the system are trying to get delta the panel board are show output fault and output faults means hydraulic system fault.

Now how can I level the hydraulic beam and also what I should from your end as your advice

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#1

Re: CNC hydralic system

08/22/2017 9:40 PM

You've had the problem for two years? Please tell me this was not purchased new.

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#2

Re: CNC hydralic system

08/22/2017 9:58 PM

What's the make and model of this machine? Do you have the operator/ maintenance manuals?

Sounds like there's more to this problem than being told.

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#3

Re: CNC hydralic system

08/22/2017 10:08 PM

What is the model? It should be self aligning, you may have a hydraulic valve stuck...

..."In this cnc press brake system, the Y1 and Y2 axes operate as independent double acting hydraulic systems. Both axes share the same oil supply, but the flow to the valves as well as true position(s) of the ram are entirely and separately controlled by computer command."...

..."Accuracy in positioning

The CNC reads the ram position from independent linear encoders while monitoring and adjusting the proportional valves, producing a double-closed loop system. Accuracy is further ensured by mounting the linear encoders on a C-frame connected to the bed, rather than directly on the side frames, so deflection of the side frames and pressure loads do not affect positioning."...

http://www.haco.com/en/our-services/atp-blue-line

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#4

Re: CNC hydralic system

08/22/2017 11:09 PM

Thanks for response.

This is for kind information that it's Ermak CNC HAP 6500 Press brake machine and it was new when establish.

And it has no manual/diagram so that I want help from other.

Thanks

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#5
In reply to #4

Re: CNC hydralic system

08/22/2017 11:37 PM

Start here:

ERMAKSAN - Press Brake

All ERMAKSAN catalogues and technical brochures - PDF Catalogue ...

Actually, the first thing you should have done is call Ermaksan.

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#6
In reply to #4

Re: CNC hydraulic system

08/23/2017 12:16 AM
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#7
In reply to #4

Re: CNC hydralic system

08/23/2017 12:32 PM

If it was new and under warranty, it would have had support from OEM (yes?) during that time?

Good money says it is not under warranty now, since idle for so long, nothing doing.

You best start listening to Lyn and Solar Eagle on this one, and make that call to:

(1) see where you stand with respect to factory warranty and on site service

(2) how much on site visit for start-up is going to cost you.

Leave the "fixing" to the experts on this one, if you want it up and being productive.

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#8
In reply to #7

Re: CNC hydralic system

08/23/2017 8:32 PM

This guy frist posted problems with this brake press back on July 10, appears he needs to throw in the towel, bite the bullet and get on the phone!

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#9

Re: CNC Hydraulic System

08/24/2017 1:06 AM

1)When Machine kept in Idle condition for 2 years, the Seals ( Large Diameters) inside the Hydraulic Cylinder may be damaged being a (Rubber & Canvas) combination Material & Hydraulic Oil Leaks from Seals, Hens One Cylinder will not come down hence uneven level of beam

2) once the Beam become unlevel behind limit Machine will not function

3) For correction you need to remove & Open the Hydraulic Cylinder & Replace the Seals

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dj95401 (2); hossain8y (1); James Stewart (1); jethwanij (1); lyn (1); SolarEagle (2); truth is not a compromise (1)

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