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Standard Features:

  • Temperatures up to 180°C (356°F)
  • Fiberglass oven body construction with fiberglass structural supports and painted exterior.
  • Heater and fan compartment at one end, separated from the workspace.
  • High velocity vertical down airflow for uniform airflow, even with varying load conditions.
  • Multiple door sections with fiberglass seal and tight closing latching mechanism allow full access to the workspace.
  • Pre-wired NEMA rated control enclosure mounted to the heater compartment.
  • Fast response open coil electric heater operated by solid state relays.
  • Removable marinite end plates can be machined to insert instruments or tooling.
  • Completely assembled, pre-wired and tested prior to shipment.
  • Custom chamber lengths
  • Digital, three-mode PID control for precise temperature control
  • High-limit control with manual reset for protection against over-temperature
  • Optional oven base casters for portability



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PTC Non-Magnetic Test Oven

The PTC Non-Magnetic Test Oven is specifically designed for burn-in, qualification testing and calibration of electromagnetic downhole drilling instruments. In the field, these ovens are used for periodic calibration of the electronics on the drill tool. The oven simulates the downhole temperature conditions and validates that the instruments will work properly and accurately throughout the run. 

The non-conductive oven is constructed with a fiberglass body and structural supports and is built to withstand the harsh oilfield environment. High velocity vertical down airflow with adjustable louvers ensures uniform airflow across the entire length.

PTC ovens come equipped with the Protocol 3â„¢ microprocessor-based temperature and hi-limit controller with a large LCD display and real time clock for auto start capability. It features three operating modes: Manual, Timer, and Profile. The data-logging functionality enables reporting and analysis, and data files can be exported via the controller’s USB port.

  12 ft length 15 ft length 24 ft length
Physical Specifications
Work chamber dimensions
(width x depth x height)
144 x 7 x 12 in.
366 x 18 x 30.5 cm
180 x 7 x 12 in. 457.2 x 18 x 30.5 cm 288 x 9 x 12 in. 731.5 x 23 x 30.5 cm
Overall dimensions
(width x depth x height)
181 x 57 x 63.5* in.
460 x 145 x 161* cm
221 x 60 x 64.5* in.
561 x 152.4 x 164* cm
326.5 x 61.5 x 70.5* in.
829.3 x 156 x 179* cm
Workspace length
(custom lengths available)
12 ft (365.8 cm) 15 ft (457.2 cm) 24 ft (731.5 cm)
Single phase voltage
(three phase also available)
208v or 240v 208v or 240v 208v or 240v
Functional Specifications
Operating range Based on 68°F (20°C) ambient temperature 266°F (130°C)
to 356°F (180°C)
266°F (130°C)
to 356°F (180°C)
266°F (130°C)
to 356°F (180°C)
Chamber temperature uniformity +/- 5°F (2.8°C) +/- 5°F (2.8°C) +/- 5°F (2.8°C)
Recirculating fan motor (custom sizes available) 1 HP - 1100 CFM 3 HP - 2000 CFM 5 HP - 3600 CFM
Heater capacity (other sizes available) 12 KW 16 KW 16 KW
Operating voltages (custom voltages available) 120 volt control circuit - step down transformer included 208v/3phase/60Hrtz 208v/3phase/60Hrtz 208v/3phase/60Hrtz
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