Recent content by zedman

Another question: Is the shape of the stirrer one of the factor creating vortex? Meaning concave stirrer plate vs converge stirrer plate.

Facs, I have made a new stirrer with bigger diameter (bigger by 50mm each side). Speed is not an issue at this moment as we can achieve the speed that we need. The problem is, stil doesn't create vortex. The stirrer does not stir but more to agitate that cause turbulance. I've reduce the speed...

Thanks Facs.

Thanks for all your replies. I can say that the stirring is really an issue as the mixture doesn't mixed well compared to the 1st 2 tanks. For the 1st 2 tanks, as we pumped in the liquid inside tanks which will create bubbles and after we pour in chemical and start stirring. Within a minute the...

Hi. Liquid viscosity & blade angle are same for all the tanks. Immersion depth is defferent. Is it the possible cause of my prob? For the 1st 2 tanks, the spiral is only 2 rev. The 3rd tank, previously 2 rev. then modified to have 3 rev.

Yes. It doesn't create vortex. I made 2 stirrers before (different tank diameter) and it works. So I wonder if the diameter of the stirrer is small compared to the tank dia., or the position of the stirrer (offset 1/4 od tank d) which is same as 2 previous tanks. The gearmotor for all these 3...

I have problem in designing a spiral stirrer. I've made a spiral stirrer for my tanks, dia. 1076mm and height 1615mm. The problem is the stirrer can't create a vortex. What should I consider in design a spiral stirrer? I

There's a few type of timing pulley, XL,L, H, XH, HTD, T and so on. What does it mean by these thing? I can see in catalog, such as 10 XL 037 or 28-14M-40. please help me with this. Thanks.

Hello, how can I select the suitable sprocket. I'm using ANSI Roller Chain, no.50-2, pitch 15.875mm, pin length 39.85mm and transverse pitch 18.10mm. Thanks.

hi, i'm designing a drying oven and need to choose the right fan for the oven. how to choose the fan? dim. of the oven:2275x2378x5470(mm) temp in oven: 80deg. celcius( same in the whole oven) i want to use 2 fan for this oven. the air sucked from middle and distribute evenly to top and bottom...

Hi, I want to make a joint between: a: metal plate thicknes: 5 mm to a hollow section 50x50x3.2 b) metal plate thickness: 5mm to a metal plate 12 mm thickness. what is the size of the bolt that suits these joint or should I weld it? tq.

not really, i'm working in industrial sector, but have no experience in designing machine or its parts

what is the most important things to consider in selecting the right bolt and nut.