Controls Group Rolling thin film ovens (RTFOT) Rolling thin film ovens (RTFOT)

Rolling thin film ovens (RTFOT)

Determination of the resistance to hardening under the influence of heat and air

  • Download:
ASTM D2872 | AASHTO T240
Main features
  • Touch-screen display with 4.5” color control panel, including timer function, visual warnings and digital air flow regulator
  • Full conformity to temperature specifications (time to reach target temperature after switch on, target temperature adjustment after samples insertion) from the Standards
  • Carousel rotation with closed-loop controlled speed
  • Safety features: Automatic over-temperature switch, door switch, pilot lamp and alarm for door open with fan still running; magnetothermic switch
  • High quality stainless steel structure, internal and external
  • Door with double-glazed window
  • Door locking system allowing easy opening also with busy hands
General description
General description
These ovens are used for measuring the effect of heat and air on a moving film of semi-solid bituminous materials. The internal chamber is made from stainless steel, insulated with fiberglass or similar, with an external frame made from engine-turned stainless steel and a door with a centrally located window.
Special attention has been given to the safety features which conform to CE requirements. 

The Rolling thin film ovens (RTFOT) can be used as part of your Superpave performance based testing program.

The oven is supplied complete with flow meter, ASTM 13C thermometer and 8 heat resistant glass containers (64 m high x 140 mm diameter).
The oven must be connected to a compressed air source supplying 2 bar minimum presure. If not available in the laboratory we recommend to order Diphgram pump (see accessories).
Version available:
  • 81-PV1612 conforming to ASTM/AASHTO standards
  • 81-PV1622 conforming to EN standard
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Technical specifications

Power: 3000 W
External dimensions: 750 x 750 x 900 mm (w x d x h)
Weight: approx. 110 kg

Ordering info

ASTM/AASHTO versions
RTFOT, Bitumen oven for rolling-thin film oven test. ASTM version. 230 V, 50 Hz, 1 ph

As above but 220 V, 60 Hz, 1 ph

As above but 110 V, 60 Hz, 1 ph

EN version
RTFOT, Bitumen oven for rolling-thin film oven test. EN version. 230 V, 50 Hz, 1 ph


Diaphragm pump

Diaphragm pump
Free air displacement, 6 litres/min at maximum pressure of 2.4 bar (when used as an air compressor).
Power: 65 W
Weight: approx. 1.9 kg
110-230 V, 50-60 Hz, 1 ph


Scraper for RTFOT bottle.

Metal rack for holding/cooling RTFOT bottles.

RTFOT bottle tong.


Spare glass container.

ASTM 13C thermometer, +155 to +170°C, 0.5° divisions.


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