Blog posts tagged with 'poultry ventilation'

Nearly all of Hog Slat’s competitors try to dismiss the GrowerSELECT® product line as “just a cheap copy.” However, every time I work with Hog Slat’s engineering department I realize how misguided this perception is.  Nothing is ever “just copied.”

I was quizzing Hog Slat engineer, Tim King, about the features and benefits of GrowerSELECT’s Curtain Machine.   He explained to me that one of the highest replacement items on a screw type machine is the load nut. As the load block moves up and down the Acme screw, the friction generated causes the insert to fail.  If friction is reduced, wear and maintenance of the insert is reduced.

1. Grower Select – Aluminum Block/Acetal Insert
2. Brass Block
3. Aluminum Block/ Brass Insert
4. Steel Block/ Nylon Insert

For the GrowerSELECT Curtain Machine, Tim selected acetal plastic to be used for the insert and cabinet slides.  Acetal is one of the strongest non-reinforced plastic available to replace metal bushings.  It is able to reduce friction within the curtain machine because of its low friction coefficient.  So why is this plastic a better choice than the brass or nylon inserts shown in the pictures?

To get a better understanding of Coefficients of Friction, consider these ratings of various materials used for bearings.

Steel on steel dry contact is .80, if you apply grease it becomes .16

Brass on steel dry contact is .35, grease it and it is now .19

Nylon on steel dry contact is .25 and with lubrication moves to .15

Acetal on steel dry rating is .15.

1. Nylon
2. Grower Select Acetal
3. Brass block
4. Brass insert

These ratings aren’t telling anyone anything they didn’t already know. Keep a bearing greased, and it will last a long time. What is interesting though is the rating for an acetal load nut without grease is the same as any of other insert materials with grease.

As a matter of fact, the acetal load nut does not even have a grease zerk.  However, we still recommend greasing the Acme shaft with general purpose Lithium grease, primarily to prevent surface rust on the shaft.

I wish you could put your hands on the four inserts in the picture.  The acetal has a slippery, almost oily feel to it; different than the nylon insert.  It is a denser, heavier plastic that is less brittle compared to nylon.

The real advantage is in the day-to-day maintenance on your farm.  The best intentions (like greasing a curtain machine) get lost in the bustle of all the work.  Why not choose a curtain machine with features that reduce maintenance?   Click on Curtain Machine for more information.

Georgia Poultry participated in the 37th annual Sunbelt Ag Expo in Moultrie, Georgia this year. At the Expo, a complete operational broiler house was exhibited, providing attendees first hand demonstrations of some of the newest products available to poultry farmers.

Celebrating the eighth year Georgia Poultry has exhibited, this year’s Expo was a continued success. Each year Georgia Poultry’s exhibit attracts over one thousand people, and is a highlight for many of the attendees.  Located in block E-6, the booth can easily be found by looking for a feed bin outside which stands tall for all to see and is placed next to the Colquitt FFA booth, where some of the best grilled chicken and smoked pork chop sandwiches are served.

Georgia Poultry enjoys contributing to the community, agriculture, and trade shows like this to help educate and demonstrate some of the newest technologies in both poultry and swine farming.  At the Sunbelt Expo we have numerous Georgia Poultry representatives, who are happy to help answer questions and showcase new methods and products we offer. In addition, several poultry equipment manufacturers are present inside of the exhibit space to showcase their new products as well as contribute to attendees overall experience. A highlight of this year’s show was the Cable Free Winching System, becoming the new model for suspension in poultry houses as it lasts much longer than traditional cable methods.

We invite everyone to attend the Sunbelt Ag Expo in Moultrie next year to see cutting edge demonstrations and product displays for both poultry and swine alike. Visit the Sunbelt Ag Expo’s website at http://sunbeltexpo.com/to find out more information about this year’s show.

Hog Slat’s launch of AirStorm fiberglass fans continues our commitment to reducing the price swine and poultry farmers pay for production equipment. Manufactured at our facilities in Iowa and North Carolina, AirStorm fans offer dependable performance at very attractive prices. Here is a look at several key features illustrating the quality designed into AirStorm fans.

Quality starts with Resin Transfer Molded (RTM)  fiberglass housings. Fiberglass parts produced by a RTM process have two finished surfaces and high glass-to-resin ratio. The result is a very finished looking product with high weight-to-strength characteristics. A direct side-by-side comparison of competitive brands shows AirStorm housings to be noticeably thicker. Polyethylene discharge cones reduce weight and cost. 

True airfoil vanes on the PVC shutters reduce air drag to improve fan delivery. Full-length spring steel rods, instead of short endpins, keep the vanes securely mounted into the frame.

Heavy-weight, stainless steel motor mounts, and hardware offer more protection from rust and corrosion than comparable aluminum mounts. Stainless Steel (36″ & 54″) or composite (24″) props outlast plastic or aluminum and stay “in-balance” through actual on-farm conditions. High service factor motors provide protection against varying line voltages common with rural power sources. 

The lower purchase price of AirStorm fans results from a different type of distribution model. The traditional marketing channel for ventilation equipment consists of a manufacturer selling fans to a local dealer who marks the price up before selling to livestock producers. The cost of AirStorm fans is lower because we manufacture and sell directly to the end user. Hog Slat controls the distribution chain from start(manufacturing and sourcing) to finish (sale to the end user) and can limit the amount of “stacked margins” in the final purchase price. (See more about Margin Stack) Our network of local stores provides service at a cost lower than typical dealer distribution systems.

For pricing and ordering information go to Airstorm Fans

We spoke with Hog Slat engineers, Tyler Marion and Tim King about the differences between using a jet or submersible pump to fill evaporative cooling systems. Here’s a quick synopsis of our discussion.

1) Jet pumps are more reliable because they can run dry for a period of time. For instance, if you discover during morning chores a leak occurring overnight had drained the system, a jet pump would still be working.   A submersible pump that runs that long without water will need to be replaced.

2) Jet pump repairs are less costly. The impeller and motor are two individual components; a bad motor can be replaced separately. Submersible pumps are a single unit.

3) Jet pump repairs and service are easier. A jet pump system is all above ground…a submersible pump must be pulled from the sump for repairs. A drain plug on the GrowerSELECT jet pump allows easy access for service and winterizing.

4) The integrated trash basket on a jet pump protects the pump from debris.

5) Submersible pumps are designed to move waste water from underground applications; low volumes with high head pressures. Jet pumps are a better choice for evaporative cooling applications as they move larger volumes of water at reduced head pressures.

6) One of the advantages cited for using a sump/submersible pump system is the sump acts as an extra reservoir for the system. The bottom trough of an 80′ long system holds about 300 gallons of water. A typical sump only holds about 30 gallons; really an insignificant amount. The main purpose of a sump area is to provide a place where a submersible pump can run in water so it doesn’t burn up. (see 1.)

To order go to jet pump