• Designed for uniform circulation of hot air in the drying chamber.
• Available in wide ranging models from 12 to 192 trays capacity.
• Electrical or Steam or Thermic fluid heating system available.
• Temperature controlled by thermostat provided with the unit.
• Fresh air inlet with filter and outlet also with damper control valve.
• Electrical control panel mounted on the upper body.
• Trays are fabricated from aluminum (stainless steel Trays optional).
• Inside surface is painted with heat resistant aluminium paint and outside with hammer tone.

Operating principal of tray dryer ( drying oven )

The dryers are made of trays held in a cabinet which is connected to a source of air heated by electric. The air temperature is controlled by a thermostat which is normally set between 50 and 700° C. The air enters the bottom of the chamber below the trays and then rises, through the trays of food being dried, and exits from an opening in the top of the chamber. In the Practical Action systems the trays are designed to force the air to follow a longer zigzag route which increases the air/food contact time and thus improve its efficiency. This system also reduces back pressure which means that fans are used.

Available Models of tray dryer ( drying oven )

Model / Capacity Tray Size : 32" x 16" x 1 1/4" - 18 G		JAS-12 Tray	JAS-24 Tray	JAS-48 Tray	JAS-96 Tray	JAS-192 Tray
Rack (Tray Loading)		Fixed Angles	Fixed Angles	One Trolley	Two Trolley	Four Trolley
Dryer Dimension :.	L mm/inch	1600/64"	1600/64"	2500/100"	4200/168"	4200/168"
Exterior :	W mm/inch	600/24"	1000/40"	1150/46"	1150/46"	2100/84"
(Approx.)	H mm/inch.	1250/50"	1250/50"	2125/85"	2125/85"	2125/85"
Number of Doors		Two	Two	One	Two	Two
Number of Fans		One	Two	One	Two	Four
Number of Motors & H.P. (400/440 volts 3 phase A.C.)		1 x 0.5 HP	1 x 0.75 HP	1 x 1.0 HP	2 x 1.0 HP	2 x 2.0 HP
Electrical Rating Of Heaters :	150°C	3 KW	6 KW	12 KW	24 KW	48 KW
	200°C	3 KW	9 KW	15 KW	30 KW	60 KW
	300°C	12 KW	18 KW	24 KW	48 KW	96 KW
Average Steam Consumption : (3 to 7 kg/cm2) kg/hr.		10-20	15-30	25-40	30-50	40-75

Application of Tray dryer Drying oven

Tray Dryers are ideally suitable for drying chilies, spices, potato chips, onions, fish, garlic, grapes, cashew nuts, confectionery, macaroni, vermicelli, noodles, pizza, etc. It is also for used for drying pharmaceuticals, chemicals, powders, granules, plastic granules, powder coating etc. Heating is either by electric or steam or both combined. Various models are designed & manufacture to suit customer requirements. Custom-built models can be quoted on request.

Construction Of tray dryer

Construction :The external frame work is made of thick gauge M. S plates both the exterior made of thick gauge CRCA sheets or AISI 304 sheets. in between the space, resin bonded special quality fiber glass heat insulation slabs are provided. safety guards for fan blade & heaters are provided. The interiors is painted with heat resistant aluminum paint. The exterior is spray painted with automotive, Inner Chamber - CRCA or AISI 304, Outer Chamber - CRCA or AISI 304.

Fan & Motor : According to models doors are provided with smooth moving hinges, latch catch & sealing gaskets. Well balanced large propeller type fan (S) fitted inside the chamber with suitable shaft & dual bearing with Electric motor (S) drive.

Heaters : 'U' type tubular heaters are provided inside the chamber for maximum heat transfer. Steam heated models are fitted with finned type steam radiators.

Controls Panel : Control Panel box consists of contractor assembly, On & Off switch, Digital Controller neon lamps, operating push buttons are incorporated in the control Box.

Damper : Adjustable exhaust Damper with an arrangement for pre-filtration, in the air inlet.

Optional : GMP models / complete S.S unit. Trolleys & Trays supplied as per requirement. Microprocessor based temp. Control with printer interface (Centronic PC interface with RS 232 CPC / RS-485 for networking of controllers. Profile controller for Ramp / Soak cyclic applications.

Safety Features : Built-in temp. deviation audio visual alarm. Safety thermostat for over shoot temp. cut off circuit to cut off the whole systems in case of malfunction. (only applicable to Microprocessor based models).

Steam Heated Models : These are provided with finned tubular steam coils instead of /in addition to heaters, along with solenoid valve.