Rolling thin film ovens (RTFOT)

For the softening point of asphalt, the determination of the resistance to hardening under the influence of heat and air
EN 12607-1 | 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 sample 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 a 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 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).
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.

TECHNICAL SPECIFICATIONS
Power: 3000 W
External dimensions: 750 x 750 x 900 mm (w x d x h)

Weight: approx. 50 kg

Diaphragm pump
81-PV0161/12
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
230 V, 50 Hz, 1 ph

Accessories
81-PV0161/13
Scraper for RTFOT bottle.

81-PV0161/14
Metal rack for holding/cooling RTFOT bottles.

82-PV0161/15
RTFOT bottle tong.

Spares
81-PV0161/10
Spare glass container.

82-PV0160/10
ASTM 13C thermometer, +155 to +170°C, 0.5° divisions.