Test Methods: ASTM D2112, D2272, IP229

DRY, OIL FREE BATHS FOR OXIDATION by RBOT

• Replaces silicone oil baths
• Improved safety against fire, smoke, burns
• Heated tube technology
• Compatible with existing oxidation pressure vessels
• Exhaust hood is no longer needed
• Quick heat up and cool down of the bath

Click for oxidation by ASTM D943

RBOT test is fraught with safety problems due to the high temperature of the silicone oil bath. Problems such as smoke, splash burns from the hot silicone, toxicity of hot silicone vapors, slippery floors, housekeeping problems, etc. can now be eliminated. Lawler has extended its unique heated tube technology concept to the RBOT test.

The heated tube concept replaces the liquid bath with a rotating aluminum tube. The tube angled at the specified 30° angle and is configured to closely fit and engage the RBOT pressure vessel. The tube and the pressure vessel rotate as one unit at the specified 100 rpm.

The aluminum tube is electrically heated and mechanically rotated. A touch panel screen displays bath set point, bath temperature, rpm of the bath, the time since start of the test, and sounds an alarm at a preselected test time. All of these parameters are operator adjustable via the touch panel input. High limit protection is provided in the event of primary controller failure to prevent temperature overruns.

The small mass of the heated tube allows rapid heat up and cool down vs. the conventional oil bath. The small footprint bench model bath(s) do not require to be used in an exhaust hood.

Lawler Model 675-1 is a single position bath and accepts the currently used pressure vessel and pressure recording instrumentation.

Model 675-2 is a two position bath, each position operating independently of the other.  Baths may be operated a temperature or rotational speed different from the other.

Model 675-3 and Model 675-4 are identical to Model 675-2 but with 3 and 4 test positions, respectively.


Available Models & Accessories
Part No.
Description
675-1

Single test position heated aluminum tube bath

675-2

Two test positions heated aluminum tube bath

675-3

Three test positions heated aluminum tube bath

675-4

Four test positions heated aluminum tube bath

RB-12

RBOT oxidation pressure vessel

RB-16

RBOT sample beaker

RB-16

Pressure recorder, 24 hrs.


Lawler Manufacturing Corporation © 2005