ROTARY-rack

system is a fully automated carousel returning equally cured tiles after a pre-set period of time (being the minimum necessary curing time) since they have been produced.


The system concept consists in loading the wet tiles into a single large circular rack that moves step-by-step, in a continuous cycle, to assure the same curing time for all loaded tiles, which can be unloaded after the pre-set curing time. Indeed, the geometrical position of the tile identifies also the exact curing time of the same one.

The circular rack moves inside an insulated prefab tunnel where heated air is suitably circulated and activated to achieve the pre-set conditions. Various temperature and humidity probes, heaters and fans are located in strategical positions and controlled by a PLC.
Loader and Unloader are also enclosed in the insulating chamber with small holes for inlet/outlet of the tiles. This guarantees a very limited heat leakage.

Advantages:

of ROTARY-rack over traditional curing chambers are: *    Perfect control of curing conditions allowing to reduce number of pallets (and racks also) *    Simplified logic as only the hydraulic inedexer of the carousel has to be controlled (4 limit switches) *    Much less machines reflecting both in a reduced cost and in better efficiency * Less energy required for heating a single compact tunnel and for energising the machines *    Less maintenance required due to the minimised number of machines * Savings on civil works as less area is needed and just a flat floor to erect the prefab tunnel

Expansion:

Provided that the plant can run faster, the expansion can be achieved either reducing the curing time or providing a second circular rack (generally of smaller size) working in sequence with the main one; that means that the system capacity can be increased like with additional racks and chambers in a traditional plant.

Flexibility:

The outputs of the different profiles do not change every day; so with a suitable quantity of additional pallets, outputs can be changed just partially replacing a profile with the other one. These additional pallets can be moved in and out of the line by hand (only when this is required) or automatically, just using a second smaller circular rack where the pallets in excess are stored and transferred in the main carousel, while the pallets & tiles to be replaced are taking their place.
Sequences (forward, reverse, fast, low) can be easily changed through the PLC according to demand.

 

ROOF TILES
		Net capacity (pcs)	Max output per 8hrs shift (pcs) *	Max velocity (tpm)	Max Overall Diameter	Autopacker
Rotary-rack	10	9280	11000	25	12,7 mts	YES
	13	13050	15000	40	13,3 mts	YES
	20	19800	23000	60	17,7 mts	YES
	30	29500	34000	80-90	22,3 mts	YES
	45	44400	51000	130	26,5 mts	YES
			*based on 7 hrs curing
RIDGES
		Net capacity (pcs)	Max output per shift (pcs)	Max velocity (tpm)	Max Overall Diameter	Autopacker
Rotary-rack	R3	3159	3159	15-20	8,1 mts	YES
	R6	6090	6090	20-40	10 mts	YES
	R12	11900	11900	40	13,6 mts	YES