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Case Study: Preheat Oven for Scrapers and Molds for
Mixer-Truck-Mounted Concrete Conveyors
K-900FS

This oven can be modified to suit your application, just call us at 888-763-6836

Customer Background:

Company: 
Westcon Mfg. Inc. / Theam Conveyors
Part to be Preheated:
Scrapers and Molds for Mixer-Truck-Mounted Concrete Conveyors (see photos below) 
Part Material:
Cast Aluminum Molds, Resin Epoxy Scrapers
Part Dimensions:
Red Finished Scrapers are 16" L , molds are 20"H
Part Weight:
Total weight of parts in oven 100-150 lbs
Target Preheating Temperature: 
100°F - 500°F
Number of pieces to be heated at one time:
12 sets
Required preheat  time frame:
8 hours to be shut off with timer

Project Background:

Westcon Mfg. Inc. in Brunswick, Maine manufactures the THEAM brand of concrete mixer-truck mounted conveyors (see truck photo).  Their  product is designed to unfold and extend from the truck to deliver  concrete to the pouring location.  Westcon is a repeat customer and 
knew where to go when they had a new parts preheating oven  requirement.  The red scrapers for the conveyor needed to be be set  on a mold inside the oven at 100°F-150°F, then placed on shelves to  cure and harden for 8 hours.  The molds needed to stand upright at  the bottom of the preheating oven, and the scrapers after taken off  the mold needed to lay flat on removable shelves.  We suggested the K-900 preheat oven, but modified to suit their unique requirement.  

The standard K-900 heat treat oven has hexagonal shelving for storing welding rods, and elements in the base, but the size was just what Westcon needed.   For the custom oven modification, the elements were moved to the lower part of both side walls so that the molds could  stand upright on the bottom.   Three removable, flat perforated  shelves were installed above to lay the scrapers flat after they were  done setting on the molds.  A preheat oven timer was required for  this application so that the preheating oven could be left on 
overnight for 8 hours and shut off at the correct time.  A digital  ramp and soak, programmable PID controller was installed in the side  control box.


K-900FS Preheat Oven Specifications:

Shelving Style:  Flat, perforated
Temperature Control: Digital PID with Ramp and Soak features
Temp Range:  150F-550F
Voltage: 240V
Wattage: 3000W
Cycle:  50 or 60
Thermometer: PID Digital Display
On/Off Light: Yes
Insulation: 2"
Interior Dims:  18"L x 19"W x 36"H
Exterior Dims:  26"L x 27"W x 43"H
Net Weight:
Shipping Weight:  310 lbs.
Shipping Dimensions:  35"L x 35"W x 53"H

Oven Construction

Exterior

The K-900FS 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 front-loading, floor-positioned preheating oven and is designed to be stored on a floor for ease of access to the parts being preheated.  Forklift slots are welded to the bottom of the oven to facilitate movement The door hinges are tack-welded to ensure smooth operation for many years.  The control panel which houses the dial adjustable thermostat 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 at preheatovens.com.  The K-900FS heat treat oven has a digital PID controller that can be programmed for ramp and soak preheating applications.   A timer was installed in the side control box that can be set from 0-1 hour, 0-6 
hour, and 0-12 hours.

Interior

The K-900FS preheating oven has a unique interior in that it has 3  upper shelves, and elements on the side at the bottom so that the  floor space can be used for parts.  The shelves are also perforated  which allows the heat from underneath to radiate through the shelf  and heat the parts effectively.  Various shelving styles are available at preheatovens.com suitable for almost any custom  preheating application.  There are four 1000W tubular elements on the  side walls of the K-900FS heat treat oven that are protected by perforated steel covers.  The interior of all our preheating ovens  are painted with a reflective, galvanized paint and the interior welds are touched up with high-temperature aluminum paint.

Our preheating ovens are made in the USA and feature a 1-year limited manufacturer's warranty.  Parts are readily available.


Oven Photos

 

Part to be Preheated

 


Please Note: Products and specifications shown on website may vary from actual 
product and may contain optional equipment available at additional cost.


PreHeatOvens.com
691 NW Enterprise Dr.
Port Saint Lucie, FL 34986
888.763.6836

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