Case Study: Preheat Oven for Chemical Steel Bottles K-TL30
Customer Background
| Company: | Classified |
| Part to be Preheated: | Bottles for chemical storage |
| Part Material: | Steel |
| Part Dimensions: | N/A |
| Part Weight: | 4 lbs |
| Target Preheating Temperature: | 400°F |
| Number of pieces to be heated at one time: | 20 |
| Required preheat time frame: | None specified |
Project Background
Rotating equipment planners at a manufacturer of chemicals and derivatives contacted us seeking an industrial process oven that could preheat a batch of steel bottles for storing chemicals. The process involved placing the bottles into the preheat oven in order to bake out any impurities or moisture within the bottle before the chemical was placed inside. The target temperature was 400F. The clients requested that the oven be top-loading so the bottles could be loaded down into the oven. Also, a top shelf was needed for the bottle lids.
Below are some other specifications requested by the client:
Box nameplate to include:
- MFG. Info
- Mass of empty box
- Electrical Info
- Max weight capacity of part
- Max weight/Shelf capacity
- Max rate of part + weight of oven
Other features:
- Lifting lugs to be rated to lift oven containing part at max rated weight
- Adjustable shelves
- Locking latch on top for transporting to field
- Relief scenario (oven shouldn’t contain pressure) (vent/etc.)
- On/off timer
- Temperature indicator
- Provide the hook lifting arrangement
For this particular application we designed a custom industrial preheating oven from scratch and called it the K-TL30. This is a solid oven that rests on heavy-duty steel casters. This oven features a locking single-door lid that can be easily lifted by grabbing the secure steel handle. The lid was installed with cold-rolled steel butt hinges that were tack welded to ensure solid door usage for many years.
We fulfilled the special requests as we always strive to do with our customers. As for shelving, the equipment specialists wanted perforated steel shelves to allow heat to permeate the oven evenly and radiate to the top shelf where the lids were to be stored. We made the oven shelving adjustable, as requested. The K-TL30 preheat oven is insulated all around, including the lid to ensure containment of heat and rapid preheating. The K-TL30 preheating oven rests on tack welded steel casters to enable free movement of the oven around the workplace and to different workstations.
This custom oven is useful for a variety of purposes, not just for chemical bottles. The temperature range can be modified for any application. A programmable digital controller was installed for this oven so the temperature reading would remain very accurate and the temperature control could be adjusted for different applications.
K-TL30 Industrial Oven Specifications
| Shelving Style: | Perforated Steel - One Lower Shelf / One Upper Shelf |
| Temperature Control: | Digital PID |
| Voltage: | 480V 3-Ph |
| Cycle: | 50 or 60 |
| Wattage: | 12,000 Watts |
| Thermometer: | Digital Temperature Readout on PID |
| On/Off Light: | Yes |
| Insulation: | 2" |
| Thermostat Temp Range: | Ambient-550F |
| Interior Dims: | 30" L x 30" W x 30" H |
| Exterior Dims: | 36" L x 50" W x 39"H |
| Net Weight: | 510 lbs. |
| Shipping Weight: | 640 lbs. |
Oven Construction
Exterior
The K-TL30 heat treating oven is constructed of carbon steel throughout. The oven exterior has a highly durable, powder-coat finish in blue that is resistant to scratching and corrosion. This a top-loading, floor-positioned preheating oven and is designed to be stored on a floor for ease of access to the parts being preheated. Perforated shelving was installed on this batch oven to evenly distribute the heat around the steel bottles. The lid hinges are tack-welded to ensure smooth operation for many years. The control panel which houses the digital PID is mounted on the side of the oven with heavy-duty rivets. A standard "ON/OFF" indicating light was also provided, which is bright enough to be seen from a distance. A variety of temperature control methods are available. The K-TL30 preheating oven rests on tack welded steel casters to enable free movement of the oven around the workplace and to different workstations.
There is also a hook-lifting arrangement at the to of the preheat oven with a load capacity of 500 lbs beyond oven weight.
Interior
The interior of the K-TL30 is unique and features a custom-designed adjustable shelving system. Various shelving styles are available which are suitable for almost any custom preheating application. The elements are installed in the the sides of the oven which allows the heat to radiate inwards and around the oven. The heating elements are housed in element guards to protect users from coming in contact to the elements. The interior of the K-TL30 preheating oven is painted with a reflective, galvanized paint and the interior welds are touched up with high-temperature aluminum paint.
All our preheating ovens are made in the USA and feature a 1-year limited manufacturer's warranty. Parts are readily available.
Design And Build Your Own Custom Industrial And Welding Ovens
Each customer often has a specific process that requires the heat treating of parts, components or materials prior to assembly. Their parts are unique in size and shape, and a customized heat treatment oven specific to the part and application is often the only solution to streamline the process. Keen is your solution.
Frequently Asked Questions
Can this oven be modified for other applications?
Yes, absolutely. Many of our custom ovens have resulted from client requests to modify an existing oven they have seen on our website, or to one of our standard welding electrode ovens that a client may be using for welding applications. The process usually begins like this: a client finds one of our ovens that has an interior size close to what can accommodate the parts that need to be preheated, and then inquires if modifications can be done. Our engineers get to work to provide suggestions to the client as to what modifications can be done. If the modifications are not suitable, we design a new oven from scratch to fit the users needs.
What is a preheat oven?
We use the term preheat oven to describe an oven that is used for preheating parts before they are used in some type of application. Most of our preheat ovens are custom-designed according to the specific application being performed by a client. Many processes require the preheating of weldments before they are bonded to some other type of metal. This preheating is required to change the property of the metal part and enable it to be installed onto another part. Our ovens are used in many applications. The K-450TL hatchable oven used on ships is just one example. We have designed ovens for bowl shafts, cylinder heads, cylinder blocks, military tank transmissions and for many other types of parts.
Do you provide CAD drawings for review?
Yes. Keen's custom oven design process typically begins with a discussion of the various solutions we are able to provide to the client. If the client wants to proceed, we then do a CAD drawing for review that clearly outlines the custom oven design for the client to review.
Do you manufacture gas-fired ovens?
No. We only manufacture electrical ovens with a maximum temperature range of 1000°F
Are your products made in USA?
Yes. We manufacture our ovens in Louisiana.
How long have you been in business?
Henkel Enterprises, LLC, manufacturer of the Keen brand of welding ovens, flux ovens, and custom preheat ovens has been in business since 1923.
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