what’s the difference between micro and macro?
Hi everybody Kelly is back today for talking about the difference between micro and macro again. Since recently a lot of customers are asking the same questions, so we would like to explain it from the inner and outside to get you all clear.
In the market there are mainly two opposite supplier of micro channel and macro channel :
From the expense: micro channel stack about 2 times higher than macro channel stack, and for the full device will be about 1.5 times higher price also. So this is the first maybe some end-users are concerning about .
Secondly, the micro channel lifetime will be about 2 times-3 times better than macro channel laser bar. For example , if one macro channel can work for about 5-10 millions shots, then the micro channel can work exceed of 10-20 millions shots no any problem . So this kind of laser bar lifetime will be concerned by customers also.
Thirdly, how to tell it from the supplier to know which its micro channel or macro channel diode bar? Please find the details with pictures like the following, they will be much more easier for you to understand it :
- What is micro channel diode laser stack?
Micro channel is a kind of diode laser bar heat dissipation way. It is like a man lying down on the ice with full body surface to cooling down.You can see from the following micro channel heat-sink.There are several layers of holes to make the heat dissipation. So with micro channel way, the diode laser stack can work well and no any burning problems. Usually we imported this kind of heat sink from Germany with good quality and the water way with high precision.But also some China supplier used cheap quality imitated micro channel.And feedback not good.
- What is macro channel diode stack？
Macro channel is another way for diode laser bar heat-dissipation. It is like a man standing on the ice with his feet surface to cooling down. It can not be compared with micro channel cooling stack. But also this kind of diode laser stack with some holes inside for water recycling. You see diode laser bar are mounted on a big stack of metal with covered copper directly. They can not full contact water way 100%. So the water cooling is not easy. Also this kind of stack calls for high profession to do the holes for cooling too especially for the water way design. Most of China supplier so far can not meet the demand to design a nice quality macro channel heat- sink to work more than 1.5 millions shots.
So I think in the market there are mostly now macro channel bar are popular, they were working with common water, and expense not so high, so customers or end-user can afford it for a new laser lamp after the first one its burning.
If you have any interest for a new laser lamp for your macro channel stack, you can check details here .
Any more questions welcome to confirm with Kelly 0086-13522789042