UniMactumble dryersare in a league of their own in terms of performance and efficiency. These durable commercial laundry machines achieve the perfect balance between drying temperature, airflow pattern and usable cylinder space for optimal drying results while significantly reducing utility and labor costs. To further reduce operating expenses, these industrial laundry machines feature innovations like the revolutionaryOPTidry Over-dry Prevention Technology. Available in a variety of sizes, UniMac commercial tumble dryers meet the needs ofcommercial and on-premises laundriesof all types and sizes.
If you have more laundry than you have floor space, UniMacstack tumblersare the solution for you. These high-performance dryers deliver unmatched efficiency and minimized costs just like standard tumble dryers, but allow you to add 60 or 90 pounds of rated capacity to youron-premises laundry operationwithout taking up added square footage.
Weve built a reputation on building the best rotary dryers in the industry. All of our dryers are custom designed to suit the unique processing needs of your material. Whether you require low or high inlet temperatures, short or long residence times, counter current or co-current flow, FEECOs design team can design a rotary drum dryer for your application.
Rotary dryers are a highly efficient industrial drying option for bulk solids. They are often chosen for their robust processing capabilities and their ability to produce uniform results despite variance in feedstock.
The drum is positioned at a slight horizontal slope to allow gravity to assist in moving material through the drum. As the drum rotates, lifting flights pick up the material and drop it through the air stream in order to maximize heat transfer efficiency. When working with agglomerates, the tumbling action imparted by the dryer offers the added benefit of further rounding and polishing the granules.
All FEECO equipment and process systems can be outfitted with the latest in automation controls from Rockwell Automation. The unique combination of proprietary Rockwell Automation controls and software, combined with our extensive experience in process design and enhancements with hundreds of materials provides an unparalleled experience for customers seeking innovative process solutions and equipment.
Rotary dryers are known as the workhorse of industrial dryers. They are able to process a wide variety of materials, and can lend a hand in nearly any industry requiring industrial drying solutions. Some of the most common industries and materials in which rotary dryers are employed include:
Unlike direct dryers, indirect dryers do not rely on direct contact between the material and process gas to dry the material. Instead, the rotating drum is enclosed in a furnace, which is externally heated. Contact with the heated drum shell is what dries the material.
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Our rotary dryers are built to the highest quality standards, with longevity in mind. The best part about buying a FEECO rotary dryer, is that you get the security of knowing your equipment is backed by over 60 years of experience, material and process knowledge, and a proven track record.
When moving a newer electric dryer into an older house, it's not uncommon to find that the cord and plug included with the new dryer doesn't fit the 240-volt dryer outlet. Before the mid-1990s, most electric clothes dryers operated with three-prong plugs that fit into three-slot outlets, but since 1996, the electric code has required four-slot outlets. The mismatch can work both ways: You may find that a newer dryer doesn't fit an older-style outlet, or that an older clothes dryer doesn't fit a newer outlet.
The change in electric dryer plugs and outlets was made for enhanced safety. In a traditional three-slot 240-volt outlet, there are two hot slots and one neutral slot. These correspond to the two hot and one neutral wire in the three-prong cord. On the dryer, the metal case of the appliance has a ground screw, and this is connected to the neutral wiring terminal of the dryer. In the event of a short to ground, the electrical current is intended to travel on the neutral wire back to the breaker box.
A four-slot outlet has a fourth slot that is dedicated as an equipment grounding conductor. The four-prong cord has a dedicated ground wire that connects to the metal dryer case. The ground and neutral pathways are separate, reducing the change of accidental shock.
If you are faced with the problem of a dryer plug and dryer outlet that don't match, there are two possible remedies. One is to replace the old circuit by installing new four-wire cable and a four-slot outlet, each with a dedicated ground. This is a job for an electrician, and it brings the circuit up to code. The other option is to replace the four-prong cord with a three-prong cord. This is an allowable remedy under the electrical code, which "grandfathers in" older installations. It is only new installations where the four-slot dryer receptacles are required; existing three-slot receptacles are allowed to remain.
Simply replacing the dryer cord is by far the easier solution and the one that most DIYers pursue when they are faced with the problem. However, this configuration is not as safe as a four-wire circuit.
In the main service panel (breaker box), find the double-pole circuit breaker that controls the clothes dryer and flip the breaker to the OFF position. At the dryer outlet, check for power using a non-contact voltage tester.
Unplug the dryer and move it to a location where you have access to the back panel. You may need to disconnect the dryer vent to move and work on the dryer. Make sure you have plenty of light while working.
Most dryer circuits have 30-amp breakers, indicated by a "30" stamped on the switch bar of the breaker. A double-pole breaker is twice as wide as a standard (single-pole) breaker, and most service panels have only a few double-pole breakers.
Use a screwdriver to remove the cover on the electrical connection box on the back of the dryer. It is located just above where the power cord comes out of the dryer and is attached with one or two screws. Set the cover and screws aside.
Remove the strain-relief clamp holding the cord by removing the two screws joining the two halves of the clamp together. Separate the two halves of the fitting and pull them out of the hole individually.
Using a magnetic nut driver or screwdriver, disconnect the black and red cord wires from the left-side and right-side terminals on the dryer's terminal block. These are the hot wire connections. Disconnect the white wire from the center terminal. Disconnect the green grounding wire from the machine case by unscrewing the green grounding screw.
Alternatively, the dryer may have a metal bonding strap (typically connected under the ground screw) instead of a white machine wire. If so, attach the strap to both the ground screw and the neutral (center) terminal.
Thread the loose end of the three-prong cord through the hole in the electrical connection box. Connect the outer two wires (the hot wires) on the cord to the outer two screws terminals, one on each screw. Connect the center wire to the center (neutral) terminal. If there a bonding strap for the ground, it must be connected to the neutral terminal along with the center cord wire.
Slide one half of the strain-relief clamp into the hole under the cord wire. Fit the other half of the clamp in the same way but on the top of the cord. Squeeze the two halves together with pliers and thread the screws into the holes. Tighten the screws until the cord is secure.
Do not re-use the original strain-relief clamp with the new three-prong cord. Clamps for four-prong cords are round and will not properly fit the flat shape of a three-prong cord. Use the strain-relief that comes with the new cord, or buy a compatible clamp separately.
Reattach the connection box cover plate with its screw(s). Slide the dryer into place, and reconnect the dryer vent duct, if necessary. Plug the cord into the outlet. At the main service panel, turn the dryer's circuit breaker back to the ON position, then test the dryer for proper operation.
If you have the related but opposite situationan older dryer with a three-prong cord but a newer house with a four-slot outletit is equally easy to replace an old cord with a new four-prong cord that will fit a four-slot outlet. Most of the steps described above will be the same, with one important difference: The neutral terminal and ground screw will not have a jumper between them, and each will be connected to its own cord wire.