important customer who does not want tire

[Kaji]

Save to you has never happened a customer who in the typical environment of transport lines where the tire is widely used (they have been in the field as outside for a few years) imposed its complete replacement with electronics.
to the general wonder simply answered: not in all departments is available a compressed air line, for my simple curiosity you know other reasons for which it is absolutely to avoid the tire, not for example the lower precision in moving at the same time two tire cylinders than two hydraulic cylinders etc.
I don't think the reason is due to the forces at stake and the adjustability of the movements that require a servomotor.

 

[TETRASTORE]

the different compressibility of the two air-oil fluids condition the application choices; qui you can see the comparison of the two pneumatic vs oleodynamic solutions.
It is also necessary to assess the environment in which the machines operate, in the specific case of conveyors. if they are in an environment with access to an electrical line, it is obvious that the electromechanical solution prevails (within certain limits) on the other two for precision in positioning and versatility in addition to the simplicity of installation and maintenance that affect the costs.
If they are conveyors for quarries or mines, in these cases you already have hydraulic power stations operated by endothermic engines, for which it is preferable to use already existing circuits, although, especially for semoves of gravel or rubble, of last generation, electromechanical motors powered by a power generator driven by an endothermic engine.
If the current solution that the customer wants to replace is related to drives made with pneumatic cylinders, I am not surprised that he intends to pass, if I understand correctly, to the electromechanical since the latter has definitely positive effects in the evolution of a company towards robotic systems with also a particular attention to energy consumption.

 

[Kaji]

thanks to the answer, but I probably mis expressed myself: the oleodynamics I used it until 2017 when I worked in the field of the earth movement, since then, use only or pneumatic actuators or actuators and electromechanical movements with asynchronous motors or servomotors, no more oleodynamics. In the specific case, being external, I am not directly involved in meetings with customers and suppliers so I do not have all the information but only those considered necessary to carry out my task, but I think the environment is closed and clean. the choice imposed is certainly that of electronics and my question was more than just a personal curiosity.

 

[DrBarde]

Look, I've been working in the business sector for over 8 years, and now I've realized that some customers are pulling out absurd demands but, if they are feasible, they do first to do it as he wants to discuss for months and inimitate it.

 

[meccanicamg]

Sure. there are customers who do not want oil and air. Come. everything clean and electric green.

 

[ian3d]

the not availability of compressed air in all departments is a plausible and sufficient motivation to ask to avoid the use of the tire.
In general, in industrial automation, the systems controlled by pneumatic actuators are very used for their simplicity of installation and cost-effectiveness when compared to similar ones managed with servomotors. However, the latter are more flexible, ensuring greater precision, ease of movement management and, perhaps, safety in emergency conditions: to achieve similar performance with the tire should include complex control and power circuits, resulting in increased cost.

 

[brn]

the compressed air costs...

 

[Mariofoll83]

If the fact that there is no pneumatic line is the only motivation, and there are no reasons related to the cycle of machinery, safety or impediments, it is unthinkable to deal with the costs of more servo drives, cables and linear cylinders than the tire have much higher costs.

if there is no need and the tire is more than enough there is no reason to face the economic cost of electronics, considering also that at today the prices are out of control and the pieces do not arrive.
you pull the compressed air line and proceed with the pneumatic cylinders.