Panel Coking


  • Tribotesters
  • Tribology
  • Tribotesting
  • Coke Deposits
  • Panel Coker
  • Panel Coking Test Apparatus
  • Coking Tendency of Oils
  • FTMS 791
  • Method 3462
  • Petroleum Testing
  • Lubricants
  • Finished Oils Testing
  • Refineries


The panel coking apparatus to determine the tendencies of finished oils from coke when in contact with surfaces at elevated temperatures. It is designed to perform Test Standard 791 method 3462.

The unit is supplied with PID temperature indicating controllers for regulating the temperature of the test panel oil in the sump and air. It is equipped with a variable drive motor, digital speed display and air flow regulator system.

The optional Cyclic timing system allows for alternate splash/bake cycles to allow oil bake for a period of time on the hot panel without the addition of fresh lubricants. The optional sulphur dioxide gas system allows for the introduction of a corrosive acidic atmosphere thus increasing the severity of the evaluation. Because of the versatility of this test machine to simulate different test conditions, it provides an economical method of evaluating coking tendencies of lubricants prior to performing expensive engine deposit tests.

Panel Coking apparatus comprises of :

Ten turn variable speed control pot. Speed range from 100 to 2500 rpm.

Three Heating System

540 Degree Celsius ( 1000 Degree F ) Maximum

300 Degree Celsius ( 572 Degree F) maximum

40 Degree Celsius ( 104 Degree F) Maximum

Variable airflow or other inert gases from 0.2 to 1.0 liters per minute is standard. Optional Acidic Atmosphere Chamber and Delivery System is available to supply and monitor corrosive sulphur dioxide ( SO2) atmospheres in various concentrations.

Timing System
Timer with automatic shut down. Optional cyclic timing system for alternating/bake cycles.

Acidic Atmosphere Chamber and Delivery System
Optional system to introduce and monitor corrosive Sulphur Dioxide ( SO2 ) atmosphere.

1/18 HP


220/110 V
Single Phase
50/60 Cycles
20 amps


On/Off Timer
Variable Speed Motor
Air Flow Regulator
PID Electronic Temperature Controllers
Lubricant Delivery System


Cyclic Timing System

Allows for alternating splash/bake cycle.

Sulphur Dioxide Gas Supply System

Sealed chamber and SO2 delivery system to introduce and monitor corrosive acidic atmospheres. Includes acid monitoring meter.

Specimen Test Panels
3-7/16 x 1 1/4 x 1 1/4 inch test panel available in various materials.

B1 Soft Aluminum, 3003-F

B2 Aluminum 2024-T351 (QQ-A-355)

C Cold Rolled Steel

D Type 321 Stainless Steel (Other materials available upon request)

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