F type Feeders feature a special feeding system in which the trough vibrates obliquely to feed materials.
The following equation gives the feeding capacity depending on the material to be handled when F type Feeder equipped with the uncovered flat bottom standard trough is used. Feeding capacity shows for standard sand (bulk density: 1.6, moisture content: 1%, Particle size: 20mesh), and can be obtained from Table 1

• γ : Bulk density of material
• C1 : Conversion factor for particle size (Fig. 1)
• C2 : Conversion factor for moisture content (Fig. 2)
• C3 : Conversion factor for trough inclination (Fig. 3)

Materials having excessive stickiness, nature of flashing, and a large bulk density are excepted from this equation.

Movement diagram of material	Ratio between particle size of material and feeding efficiency
Ratio between moisture content of material and feeding efficiency	Ratio between trough inclination and feeding efficiency

Model	Max. feeding capacity (T/Hr) on 60Hr	Trough size width x length (mm)	Voltage (V)	Frequency (Hz)	Vibration per min.
F-152BDT	10	200x610	200/400	50/60	3000/3600
F-212BDT	35	310x762	200/400	50/60	3000/3600
F-22BDT	50	356x914	200/400	50/60	3000/3600
FH-22BDT	65	458x914	200/400	50/60	3000/3600
F-33BDT	100	558x1067	200/400	50/60	3000/3600
FH-33BDT	130	610x1067	200/400	50/60	3000/3600
F-44BDT	220	762x1219	200/400	50/60	3000/3600
F-45BDT	330	914x1524	200/400	50/60	3000/3600
FH-45BDT	440	1219x1524	200/400	50/60	3000/3600
F-55BDT	600	1372x1524	200/400	50/60	3000/3600
F-66BDT	800	1524x1829	200/400	50/60	3000/3600
F-88BDT	1250	1829x1829	200/400	50/60	3000/3600

Note: The max.feeding capacities apply to standard flat-bottm open type with skirts when bulk density of sand is 1.6, though angle is 10∞ (horizontal for modeles F00B~11B) and voltage is 80 Hz.

Model	Depth of material (mm)	Trough inclination downward	Materials
			Quick lime	Iron ore	Lime stone	Coke	Sintered ore	Chemical fertilizer	Resin pellet	Sugar	Granular foods
F-212BDT	100	6°	17	30	22	9	25	16	8	15	7
		10°	18	33	24	10	27	17	9	16	8
F-22BDT	120	6°	25	42	32	13	35	22	12	20	10
		10°	26	45	34	14	38	23	13	21	11
FH-22BDT	130	6°	31	52	40	17	43	28	15	26	13
		10°	33	56	43	18	47	30	16	28	14
F-33BDT	180	6°	53	89	69	28	76	48	25	44	21
		10°	56	96	73	30	81	51	27	47	23
FH-33BDT	200	6°	65	108	84	35	93	59	31	54	27
		10°	68	118	89	37	98	62	33	57	29
F-44BDT	250	6°	103	173	133	56	147	95	50	86	44
		10°	108	188	143	58	157	100	52	92	46
F-45BDT	320	6°	146	244	188	79	208	136	71	122	62
		10°	153	264	201	83	222	142	75	130	65
FH-45BDT	360	6°	191	319	247	103	272	175	93	159	80
		10°	200	346	263	108	289	185	97	170	84
Bulk density (T/m3)			1.0 ∼ 1.2	2.1 ∼ 2.2	1.4 ∼ 1.6	0.5	1.6 ∼ 2.0	0.9	0.45	0.8	0.4
Moisture content (%)			0	0 ∼ 10	0 ∼ 10	0 ∼ 5	0 ∼ 5	1 ∼ 4	0	0.2	5 ∼ 15
Particle size (mm)			2 ∼ 30	5 ∼ 50	2 ∼ 30	15 ∼ 75	5 ∼ 50	1.5 ∼ 4	2 ∼ 5	0.3 ∼ 1	0.5 ∼ 3

Note: The feeding capacities apply to standard coverd type when voltage is 50 Hz, and adjusted to 1.2 times when voltage is 60Hz.