Topsetter 74P / 102P speed on 745/605 plates

[alekbelia]

As STStech says in the smaller and in the bigger device the energy for the surface of the plate must be the same. But when the diameter of the drums is different this mean (in case of the same sized plates) that in the bigger drum diameter device laser head is not working more time than in the smaller drum diameter device. In other words the bigger device is less effective on smaller plates (just because the laser head working only in smaller parts of time per revolution).
It's mean that Kevin@Kodak giving us right answer.
I ask by phone some tech guys (who are working from years in this sector) and they give me different answers. This is the reason to post this question here.
Thank everybody for their posts.

[Armya Inc]

http://www.google.com/url?sa=t&rct=j...lB0sJ6HVIFgolQ

[ansoft]

I have been on a vacation and I missed some of the discussions. ASAIK Alekbelia has PT-R8600 with 64 lasers fiber type. I have extensive experience with both platesetters and PT-R4300S is faster. This is because of the loading time, smaller drum diameter and higher drum speed. The maximum drum speed of PT-R8600 is 900rpm, while PT-R4300S is 1000 rpm. The calibrated power of the 8600 is 270mW, but 4300 is 240mW because of the energy delivered on the plate. In Bulgaria, there are not more that 5 people that really knows how the CTPs work and can give an experienced opinion. For Screen devices, I know just 3 people that are trained and have extensive experience. Others are just operators. Sorry, but this is the truth.

[alekbelia]

To Armya Inc - very good reading.
To ansoft
I ask about P102 and P74 comparison?
Actually P102 can be PT-R8000II or PT-R8300. P74 is 4300. Both are 32 ld devices.
Loading of the same plate on 4300 is not faster than on 8xxx series, or here is very small differences.
The question is what is the speed of Topsetters P102 and P74 on same plate with B2 size, eventually on B3 size.
Maybe the answer is (for B2 size) - ~16 plates/h for P102 and 20 plates/h for P74.