ARAO - ARAV HIGH FLOWRATE ATMOSPHERIC DRYER Dyeing machines

ARAO - ARAV HIGH FLOWRATE ATMOSPHERIC DRYER Arao and Arav are fully automatic yarn package high flowrate dryers at atmospheric pressure conceived to load directly the dyeing carriers coming from dyeing machines, after hydroestraction. The dryer performs the final drying of yarn packages after a preliminary centrifugal hydroextraction performed by the Hydrocolumn system. They are normally used to dry several types of yarns without practical limitations in: •Fibre composition •Yarn package type and size. Yarns can be of cotton, acrylic, wool, polyester, rayon and blends in form of cylindrical,...

ARAO - ARAV YARN CONDITIONING DRYING CYLES TOP-QUALITY DRYING. After drying phase air heating battery is excluded and air it is circulated in inside-to outside direction in order to equalize residual humidity in yarn packages and reduce the final temperature of the material. Centrifuged cotton yarn: 210 min at 110 degrees. ARAO and ARAV atmospheric dryers operate efficiently processing drying at low temperatures of : •Delicate yarns as wool, silk, pre -bulked HB acrylics. •White yarns and yarns dyed in pale or brilliant colour shades. •Yarns dyed with dyestuffs classes subject to migration at...

ARAO - ARAV AUTOMATIC CONTROL OF RESIDUAL MOISTURE The device is conceived to operate as below: • During drying operation, through a specific hardware system, the carriers loaded with yarn packages are weighed directly in the autoclave. • A separate software system allows to equalise the residual humidity in yarn packages with pre set moisture rate. This system avoids any risks of over or poor drying, typically linked to traditional drying systems such as those of pre set end of cycle, or control of final temperature rate when air is eliminated through exhaust air circuit. OPEN LOOP AIR CIRCULATION...

ARAO - ARAV LOCKING SYSTEM OF PACKAGE COLUMNS The device has been conceived to fit to the top of yarn package columns in order to lock them. This system avoids air blow-out by closing and locking automatically once the carrier has been loaded and before the drying cycle starts. This is done without any operators or machines intervention to position back the locking system on packages after centrifugal process. The device is suitable for yarn carriers of same type, i.e., for carriers having the same disposition at the basis of columns. •Spindle locking device with uplifting and lowering system...

ARAO - ARAV MODULAR DESIGN Modular construction of all components. Standard machines can be selected in accordance to: Autoclave Diameter Internal autoclave diameter (mm) Horizontal carrier length Useful carrier height (mm) (double stage) OPERATION IN ROBOTIZED DYEHOUSES ARAO and ARAV high flowrate dryers are in operation in several fullyrobotized yarn package dyeing plants and can be supplied on request with presetting for operation in automated conditions with computer-controlled automatic lid opening, weighing, closing and locking system. This presetting consists of electropneumatic devices...

ARAO - ARAV HOST COMPUTER REMOTE CONTROL In order to preset optimum drying conditions for a wide range of yarn packages, fiber types and colour shades, many drying cycles can be performed by a one-touch digiting of program number on the PC of the dryer. The microprocessor it is designed for direct interfacing with central computer for centralized dyehouse management. STANDARD FEATURES. Standard design and manufacturing features are: • Nominal loading capacities from 130 to 1500 kgs. • Construction in AISI 316 stainless steel. • Motors protected according to IEC Standards IP 54. • Electrical equipment...