Need a individual 12v tunze powerhead/pump Help please.

[sikpupy]

Cant find any listing on them, I have searched the web. What would I be looking for? What are they called? What model number? I hear #4's but I read they are 120v ????

 

[rvitko]

I can only imagine you are referring to the 6105 or 6055? They actually run on 15 or 24V for the 6105 and 12-24V for the 6055.

 

[sikpupy]

Okay, looked up 6055 and from salty critters

"Specs for 6055
For aquariums from 40 to 500
litres (26 to 132 USgal.)
Flow rate: 1,000 to 5,500 l/h
(264 to 1,453 USgal./h)
Energy consumption: 4 - 18 W
Voltage / frequency: 110V/60Hz
Cable length: 5 m (196.8 in.)
Dimensions: diam. 70 mm (2.7 in.),
output: diam. 40/15 mm (1.5 / .59 in.)"

marinedepot:
"New Generation with Titanium Alloy Shaft
For aquariums from 11-53gal
Flow rate: 660gph
Energy consumption: 6W
Voltage/Frequency: 115V/60Hz
Cable length: 78.7"
Dimensions: Diameter = 2.7"; Outlet Diameter = 1.5"/0.59" "


I do not see 8-12v, so, what am I missing? :mad2:

 

[rvitko]

It plugs into the wall and uses 110V 60Hz and a transformer steps this down to 12-24V. The transformer is included. Any of our pumps which are termed "electronic" are low voltage.

Your marine depot specs are for the 6025 which is not a low voltage pump, only the 6055 is.

 

[sikpupy]

Okay, so I took another look at marine's site and they have a selection tab I didnt see. Once I selected the 6055 it popped up as

Voltage / frequency: 230V/50-60Hz

which is even more confusing as in America we have 110v-115v. Reading the fine print, I do see where is says something about 12v/24v but nothing specific.

$220 a pop? wow!! I can get a 12v bait pump for $11. Not sure if it is tank safe, but, makes me want to take a chance.

Okay, thanks for the help.

 

[rvitko]

The power supply is auto switching it can take anything from 100-240V and steps it down to 12-24V based on user setting. You can get any info you need at Tunze.com, this is a controllable electronic pump, not a direct drive DC pump like a bilge pump. You are comparing apples and oranges.

 

[sikpupy]

Maybe... The motor/power head is what I am after. Maybe there are a few capacitors in the epoxy to help absorb voltage fluxuation/spike, but........ thats all I am saying. Just checked the tunze sight and now I know what I am looking for, you have a motor block and the drive for $135 . Still kind of wow when the stright 110v plug ins are $50-ish. Its all cool, but, wow!!

 

[rvitko]

A Bilge pump is a DC motor in a sealed housing usually filled with oil, the shaft extends through a seal and drives a propeller, it is a direct drive motor, it is the simplest DC motor available.

Here is our competitors product:

http://www.marinedepot.com/ps_searc...parsed~1~SearchText~koralia,controllable.html

It is 12V AC and utilizes frequency modulation so the control unit is very expensive while the pump is not so expensive.

Our 6055 is the same price for a pump and controller but the pricing is inverted because we use an electronic system with Hall sensors and a computer system to actuate the coils and vary the speed. These are both magnetic drive systems and it is not as simple as you presume. These are the only two ways speed control can be accomplished on a brushless motor.

 

[sikpupy]

Okay, so you use pulse width to control the motors with the HALL sensor detecting the speed of the motor at the same time. Very nice and very precise I must say. From what you describe, I know whats in the motor unit, I play with that stuff on cars all the time. I am NOT putting down the technology of the product in any way, but, the bulk of it is still in the controller. Fact is, the motor, so far as you described, is still nothing but copper wire and a few magnets, not too far off from a standard DC motor. All a HALL sensor is is a peice of metal passing a magent, or, a north end of maganet passing a south end magnet. I would add maybe $20 to production costs over a reguler unit... for the motor assembly only

 

[rvitko]

Fine, make your own. When you have built all your molds and hire all your employees and offer a two year warranty let me know your actual cost for low volume production.

 

[sikpupy]

Thought I detected a little personal flavor in the dialog, but, honestly, you know, thats a good idea!

 

[Harry_Fish]

<a href=showthread.php?s=&postid=14387167#post14387167 target=_blank>Originally posted</a> by rvitko
A......

Here is our competitors product:

......

Yea right........


There are two types of pumps:

1. Tunze

2. Everyone else