Blue M Stacked Oven

Blue M stacked industrial ovens have earned a long-standing reputation for exceptional performance, long service life and ease of operation over a broad range of applications. The STL series integrally stacked Blue M mechanical convection oven is suitable for curing, drying, and baking in semiconductor, electronic, and many other industrial applications. 

Benefits of the Blue M Stacked Oven

  • Long service life
  • Easy operation for a variety of applications
  • Exceptional, uniform performance under all loading conditions


  • Heavy gauge steel exterior
  • 16 gauge or larger exterior panels
  • 4 inches of fiberglass insulation
  • Baked on Formica white powder paint finish
  • Blue M silicone door seal design
  • Horizontal airflow
  • Double plenum design
  • Blue M Eterna™ heating element
  • Premium alumina ceramic element insulators
  • Airflow switch


  • Temperature range: 15°C above ambient to 350°C (662°F)
  • Uniformity: ±1% of setpoint
  • Accuracy: +0.5°C
  • Resolution: ±0.1°C


  • Profiling or single setpoint temperature controls


  • STL-05 Oven Options
  • 24-hour, 7-day digital process timer
  • Circular or strip chart recorder
  • RS232/RS485 communications converter
  • Light tower
  • Emergency power off switch
  • Spec View data acquisition software
  • NIST traceable certificate of calibration
  • Dry box oven with N2 gas system
  • Engineered Oven Options
  • Lead-in pipes
  • Special control systems
  • Door interlocks
  • Standard air model
  • Reverse door hinges
  • 5-point thermocouple survey
  • Temperature deviation alarms
  • Filtered process air/atmosphere intake


This Blue M product has an exclusive 2 year warranty for all domestic (US only) shipments for parts and labor for a period of 2 years from date of shipment. The 2 year warranty covers all parts and labor the first year including fan motors and heating elements; the second year is limited and covers parts and labor with the exception of fan motors and heating elements.

A standard one year parts and labor warranty will continue to be offered on the following Blue M series products: Blue M CEO series Steady State Food & Drug Stability Test Chambers, Ultra-Temp Standard Convection Ovens, Custom Lab Equipment (CLE), or Full Range Programmable Chambers (FR).

The Blue M Laboratory Ovens (LO) and Gravity Ovens (GO) series are covered by a standard one year parts only warranty.


  • Watlow F4T Temperature Controller

    Watlow F4T Temperature Controller

    The Watlow F4T Temperature Controller with INTUITION™ temperature process controller combines the flexibility of a modular I/O controller with best-in-class ease of use.


    • 4.3-inch, color touch panel with high-resolution, graphical user-interface
    • 1 to 4 control loops with TRU-TUNE+ adaptive control algorithm for superior controllability
    • 40 ramp and soak profiles with real-time clock and battery backup.
    • Ethernet Modbus® TCP connectivity
    • High-speed USB 2.0 host port
    • Modular design, which offers numerous types of field pluggable modules for maximum flexibility and easiest compatibility
    • Optional Data Logging capability
    • Optional Graphical Trend Chart
    • TPS provides panel mounted USB and Ethernet ports located on the front control panel of the equipment


Blue M Stacked Ovens Specifications

Model STL-05 Stacked Oven
Interior Volume (per oven) 5.8 cu. ft. (164 l)
Interior Dimensions
25 x 20 x 20 in
635 x 508 x 508 mm
Exterior Dimensions
52.3 x 49 x 74 in
1328 x 1245 x 1880 mm
Machine Footprint 17.75 sq. ft.
1.65 sq. meters
Electrical Service
208 VAC 1Ph 60Hz
                   Line current               
4.2 kW
25 Amps
240 VAC 1Ph 60Hz
                   Line current               
6.0 kW
29 Amps
208 VAC 3Ph 60Hz
                   Line current               
9.0 kW
27 Amps
240 VAC 3Ph 60Hz
    Line current
12.0 kW
31 Amps
480 VAC 3Ph 60Hz
                   Line current               
12.0 kW
16 Amps
Additional voltages available. All specifications are subject to change without notice.