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Keen KHT-500 Welding Electrode Rebake Oven

Storage Capacity : 500 lbs

Temperature Range : Ambient-999F

Purpose: For storing and/or rebaking SMAW low-hydrogen stick rods

Availability: In stock

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Brief Product Description:

Backed by Keen’s 40+ years of welding industry knowledge and manufacturing prowess, the KHT-500 high-temperature SMAW stick electrode rebake and storage oven is a first-class, American-made product with everlasting durability. Designed for rebaking and storing up to 500 lbs. of flux-coated shielded metal arc welding electrodes, this robust, industrial-grade welding oven exceeds the demands of today’s industry professionals. Standard construction features include: tough welded door-hinges; resilient, powder-coated finish; handy fork-lift slots in base; aluminized steel interior; purpose-built shelving for 50 lb. electrode tins and much more. Safety-conscious professionals can RELAX because the Keen KHT-500 welding electrode oven is crammed with safety features: explosion-proof door latches, thick 4” mineral wool insulation; manual reset high-limit fail-safe control; digital PID programmable microprocessor with dependable solid-state relay output; incoloy-sheathed elements and much more. Additional options include: upgraded PID control with ramp and soak features, printed chart recorders and digital chart recorders.

Product Overview

About the KHT-500 Electrode Rebake Oven – 500 lbs. Capacity

The Keen KHT-500 is an electrical, high-temperature industrial oven that is designed for rebaking flux-coated, shielded metal arc welding (SMAW) electrodes. It has a 500 lb. storage capacity and a temperature range of Ambient-999°F (Ambient-537°C).

For welding electrodes that have been contaminated by moisture, the high temperature KHT-500 rebake oven is your answer. Highly efficient and easy to use, it is the perfect solution to restore up to 500 lbs of moisture-contaminated shielded metal arc welding (SMAW) electrodes

Heavy-Duty Construction Features

  • Durable powder-coated steel exterior
  • Welded construction
  • Angled perforated shelving induces natural convection
  • Heavy-duty reinforced door, door handle and explosion-proof door latches
  • High-strength door gasket with 304 stainless steel knitted wire core and high-temperature fiberglass overbraid
  • Pockets at oven base for easy transport by forklift
  • 1 year limited manufacturer warranty

Performance Heating and Safety Features

  • 4" (2.54 cm) thermal insulating wool for energy-efficiency.
  • Three , long-lasting, 1000W UL®-approved Incoloy-sheathed tubular heating elements for effective heating.
  • Adjustable proportional integral (PI) digital controller
  • Stable, reliable loop feedback temperature control
  • 3-digit LED temperature indicating display
  • Handy tactile increment/decrement keys on the controller’s water-resistant front panel enable easy temperature set point adjustment
  • Temperature readout in Fahrenheit or Celsius
  • Adjustable, thermocouple-actuated manual reset over temperature control (high limit fail safe device)
  • UL® approved proportional integral (PI) digital controller
  • UL® approved incoloy sheath tubular heating elements

Shelving Design

Our angled welding rod storage shelving is purpose-built not to inhibit natural convection- a common occurrence with competing brands that utilize flat shelving for storage. The unique welded-in shelves allow the insertion of full 50 lb. tins of welding rods up to 18 inches which is a unique benefit for nuclear and aerospace welding codes that require immediate heated storage of opened tins before use.

Most electrode manufacturers discourage ‘stacking’ of electrodes too deeply while being heated to allow for better airflow over the consumable. With our shelving design, heat reaches the electrode coating more effectively to stave off atmospheric moisture. Please see diagram below of the airflow action with our shelving design:

heat shelf

Quality Insulation

Efficient heating design must be supported by quality insulation. The Keen KHT-500 features features thermal mineral wool insulation. It is highly thermally-efficient and is installed within the walls and door of the unit.


We have the unmatched ability to customize any of our standard ovens, and/or design one-of-a-kind ovens for unique storage requirements. Welding codes are constantly changing, and Keen is ready to meet the demands of today’s welders. Please visit our website http://www.keenovens.com for more information about our products and detailed technical information about welding consumable storage.

Technical Details

Part Number 011603 (240V – 1 Phase), 011606 (240V - 3 Phase), 011604 (480V – 1 Phase), 011605 (480V – 3 Phase)
Oven Category Floor – Electrode Rebake
Electrode Capacity 475 lbs. 18” Electrodes
Electrode Capacity (KGS) 215.46 kgs. 45.7 cm Electrodes
Standard Voltages Available 240V, 480V
Wattage 3000W
Temperature Range (°F) Ambient - 999°F
Temperature Range (°C) Ambient - 537°C
Thermostat Digital Proportional Integral Temperature Control
Insulation 4" Mineral Wool
Interior Dimensions (IN) 19” D x 18” W x 18” H
Interior Dimensions (CM) 48.26cm D x 45.72cm W x 45.72cm H
Exterior Dimensions (IN) 30”L x 36”W x 31”H
Exterior Dimensions (CM) 76.2cm L x 91.44cm W x 78.74cm H
External Thermometer Digital Temperature Display
Net Weight (LBS) 234 lbs.
Net Weight (KGS) 106.14 kgs
Shipping Dimensions (IN) 42” L x 45” W x 39” H
Shipping Dimensions (CM) 106.88cm L x 114.30cm W x 99.06cm H
Shipping Weight (LBS) 360 lbs
Shipping Weight (KGS) 163.29 kgs.
Power Cord Length 10 ft.
“ON” Indicating Light Yes
CSA Approval No
UL Approval No
Accessories None Available
Similar Keen Ovens KHT-50, KHT-200, KHT-900
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