Conveyor System/Rubber Conveyor Belt/Pipe Rubber Conveyor Belt

Construction:
Pipe conveyor belt takes high-strength canvas or steel cable as its carcass in combination with high-strength high abrasion-resistance high-quality rubber as the top and bottom rubber cover, during the operation.

Features:
    (1) Pipe belt itself has appropriate transverse rigidness, which can ensure good retention and seal of tubular shape.  
    (2) The belt body has good elasticity and longitudinal flexibility, making the belt able to tolerate repeated and long-time violent bending and shrinkage; 
    (3) The belt has excellent physical and mechanical properties. It is required that the outer cover rubber has higher resistance to weather, ozone, ultraviolet rays, flexure, cracking etc., while inner cover rubber should have excellent abrasion resistance.    
    (4) Because of special structure of tubular belt, it conveys powdery material in tubular closed condition during the conveying, thus it can effectively prevent dust fly and spill. 
    (5) By adopting tubular conveyor belt for conveying, the material is wrapped in the rubber belt, this increasing the area of contact between material and rubber belt and internal friction angle of material, thus can increase the inclination angle of material conveying of the conveyor.  
    (6) With tubular belt adopted for conveying, after the belt presents tubular shape, it can run horizontally, vertically or curvilinearly, the conveying line can be arranged according to the space within a certain range without setting intermediate transfer station, therefore, construction investment can be saved.   
    (7) Tubular belt conveying avoids bias with reliable running, improved conveying efficiency and better economic benefit and lower running cost.   
    (8) With tubular belt for conveying material, the return run after discharge can also convey material, i.e. two-way conveying. This can not be achieved with ordinary conveyor belt.
 
Application:
It is widely applied in enclosed conveying of bulk materials in the sectors as of metallurgy, electric power, chemical engineering, harbor, wharf, building materials, coal, mine, grains etc. It has multiple types such as abrasion-resistant, heat-resistant, cold-resistant, corrosion-resistant, flame-resistant, antistatic etc. 

Specification series

(mm) Tube diameter	100	150	200	250	300	350	400	500	600	700
(mm) Belt width	360	600	800	1000	1100	1300	1600	1850	2250	2450
(m2) Sectional area	0.008	0.018	0.031	0.053	0.064	0.09	1.147	0.21	0.291	0.379
(mm) Max lump size	30	30-50	50-70	70-90	90-100	100-120	120-150	150-200	200-250	250-300

 Marking of pipe belt with textile carcass

100	1000	NN	4	800	4+2+2	18
Length (m)	Width (mm)	Carcass material	Number of belt  cord plies	Longitudinal tensile strength  over full thickness  (mm)	Thickness of top and  bottom rubber  cover and transition  layer (mm)	Performance  of cover  (MPa)

Marking of steel cord pipe belt

1000	ST	800	5+5	M
Width (mm)	Material code  of belt cord	Longitudinal tensile  strength over full  thickness	Thickness of top and  bottom rubber cover  (mm)	Grade code of  cover performance

Specifications and technical parameters of tubular conveyor belt with nylon canvas carcass

mm Tube diameter	mm Width	N/mm Tear strength	Number of  fabric plies	Model of Fabric	×mmThickness of  cover rubber Inner × outer	mm Total thickness
100	430	250	1	NN-300	3.0x1.5	5.2
150	600	160	2	NN-100	3.0x2.0	7.5
		315		NN-200
200	750	315	2	NN-200	3.0x2.0	7.9
		500		NN-300
		315		NN-200	5.0x2.0	9.4
		500		NN-300		8.9
250	1000	400	2	NN-250	3.0x2.0	8.6
		500		NN-300		9
		400		NN-250	5.0x2.0	10.1
		500		NN-300		10.4
300	1100	400	2	NN-250	3.0x2.0	9.1
		500		NN-300		9.5
		400		NN-250	5.0x2.0	10.6
		500		NN-300		11
350	1300	630	3	NN-250	5.0x2.0	11.9
		800	4	NN-300		12.5
400	1600	800	4	NN-250	5.0x2.0	13.1
		1000	5	NN-300		13.9

Recommended min. roller diameter of conveyor (Pipe conveyor belt with nylon canvas carcass)

Number of plies        Roller diameter Model	2	3	4	5
NN-100	200	250	315	400
NN-200	250	315	400	500
NN-250	315	400	500	630
NN-300	400	500	600	800

Specification parameters of steel wire tubular conveyor belt

Item Strength specification		St 630	St 800	St 1000	St 1250	St 1600	St 2000	St 2500	St 2800	St 3150	St 3500	St 4000	St 4500	St 5000	St 5400
N/mm Longitudinal tensile strength		630	800	1000	1250	1600	2000	2500	2800	3150	3500	4000	4500	5000	5400
mm Max. nominal diameter of  steel cable (mm)		3.0	3.5	4.0	4.5	5.0	6.0	7.5	7.6	8.1	8.6	8.9	9.7	10.9	11.3
±1.5mm Space between steel cables		10	10	12	12	12	12	15	15	15	15	15	16	17	17
mm Thickness of top rubber cover		5	5	6	6	6	8	8	8	10	10	10	10	10	10
mm Thickness of bottom rubber cover		5	5	6	6	6	6	6	8	8	8	10	10	10	10
mm Thickness of intermediate layer  for rigidness adjustment		Transverse rigidness value is provided by the customer,  and our company prepare the corresponding intermediate  rigidness adjustment layer according to his need,  the thickness of adjusting layer is 3~6mm.
mm Tube diameter	mm Width	Number of steel cables
200	800	75	75	63	63	63	63	50	50	50	50	--	--	--	--
250	1000	95	95	79	79	79	79	64	64	64	64	64	59	55	55
300	1100	105	105	87	87	87	87	69	69	69	69	69	65	61	61
350	1300	124	124	103	103	103	103	83	83	83	83	83	77	72	72
400	1600	151	151	126	126	126	126	101	101	101	101	101	96	90	90
500	1850	177	177	147	147	147	147	119	119	119	119	119	111	104	104
600	2250	--	--	181	181	181	181	145	145	145	145	145	137	125	125
700	2450	--	--	197	197	197	197	158	158	158	158	158	148	139	139

Recommended min. roller diameter of conveyor (steel cord pipe conveyor belt)

Type of belt	St 630	St 800	St 1000	St 1250	St 1600	St 2000	St 2500	St 2800	St 3150	St 3500	St 4000	St 4500	St 5000	St 5400
mm Min. roller diameter	500	630	630	800	800	1000	1250	1250	1250	1250	1400	1600	1600	1800