Engineering FAQ
For more information please visit the Engineering service section of our web site.
Design And Build
What are the advantages/disadvantages to using a PNP vs. NPN sensor?
When a NPN (sinking) sensor senses a target its output switches a (-) supply to the load. This type of sensor cannot survive a short up to the positive supply (a rare occurrence). Shorts to negative (zero volts) will not damage it.
When using grounded (NPN) signals, an unintentionally grounded signal wire will be interpreted as a logic true, and can cause unexpected and potentially dangerous results.
When a PNP (sourcing) sensor senses a target its output switches a (+) supply to the load. This type of sensor is very vulnerable to short circuits to earth (zero volts), a common fault if the wiring becomes damaged. Often it will fry under this type of fault.
To avoid any confusion, I would recommend selecting a DC sensor with universal options. This means that by changing wiring connections, a sensor can be connected to either NPN or PNP loads, and may even have N/O or N/C options.
What are your Engineering disciplines?
Programming, Electrical and Mechanical design.
What does it take to initiate a project?
We can work from your sketch to a complete documented specification.
What does your Engineering group specialize in?
We specialize in automation, test, and material handling equipment, reverse engineering, fixtures and jigs. We have the capabilities do design and build just about any Electro-Mechanical equipment you can dream up. (Contact us with your requirements)
What file format do you support?
We can read many file types including but not limited to DXF, DWG and IGS.
Feeder Bowls
Does a single feeder feed only one part?
Not always. Products that have slight variations in size and shape can be fed out of the same feed system.
How do all the parts get turned the same way?
We determine the type of tooling required to achieve the proper rate and orientation of each particular product. The tooling consists of selectors, sweeps and turning mechanisms that use the products own characteristics (shape, weight, composition, etc) to facilitate orientation.
How fast can the products be fed?
It depends on the product characteristics, and the size and type of feeder used. We have fed parts as fast as 2000 per minute and as slow as 5 parts per minute.
What is a feeder bowl?
A feeder bowl is an automated parts feeding system used to orient products to be assembled, inspected, or packaged.
What sort of parts can be fed in a feeder bowl?
Items such as bottle caps, springs, housings, seals, washers, nuts, bolts, wheels, axles, pills, electrical components, and screws. Just about anything can be fed.
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