Rolling Thin Film Ovens (RTFOT)
Determination of the resistance to hardening under the influence of heat and air
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
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 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).
Two versions are available:
- 81-PV1612 conforming to ASTM/AASHTO standards
- 81-PV1622 conforming to EN standard
The ASTM and EN versions are basically identical, except for a small difference of the internal dimensions of the testing chamber.
