Crows Foot Weave (CFW) Rubber Conveyor Belt

Crows Foot Weave (CFW) Rubber Conveyor Belt designed for high abuse installations is manufactured with a unique EP (polyester nylon) carcass with 50% more threads (ends) in the warp, 40% heavier weft yarn, 20% more weft threads (picks) and over twice the strength in the weft providing a belt with 5 times the strength of conventional fabric conveyor belts.

CFW conveyor belt provides 3 ~ 5 times higher tear strength with superior resistance to strong rip tensile forces, compared to conventional fabric conveyor belts. It is recommended for high impact service conditions like rock mining, quarrying, mobile or fixed plant crushing etc.

Production standards
Cover rubber Characters

CFW M Grade Rubber Conveyor Belt is normally available in the following specifications:
CFWEP1000/3 8X3 M & CFWEP1250/4 10X3 M

Crows Foot Weave (CFW) Rubber Conveyor Belt is normally available & can be supplied:

Monster Conveyor Belt ( MON) offers AS-M and DIN-X/W Rubber Textile Conveyor Belts, with superior tensile strength Crows Foot Weave (CFW) fabric reinforcement blended carcass for resistance against rip and tear forces, due to the unique ply weave design. Combined with low elongation tension member enables short take-ups, this belt is deemed suitable for high impact bulk handling situations.

Production standards: Our belts are manufactured in conformance with Australian Standards

Specification and technical data of conveyor belt rubber

Fabric type	Fabric structure		Fabric specs	Ply thickness	Strength(N/mm)				Cover thickness		width	length
Fabric type	warp	weft	Fabric specs	mm/ply	2ply	3ply	4ply	5ply	upper	lower	mm	m
polyester	polester	polyamine	EP80	0.95	160	240	320	400	1.5-12	0-4.5	400-2500	50-500
			EP100	1	200	300	400	500
			EP150	1.1	300	450	600	750
			EP200	1.2	400	600	800	1000			500-2500
			EP250	1.35	500	7500	1000	1250
			EP300	1.45	600	900	1200	1500
			EP350	1.6	–	1050	1400	1750			800-2500
			EP400	1.75	–	–	1600	2000			1000-2500
			EP500	1.9	–	–	2000	2500
			EP630	2.1	–	–	2400	3000

Adhesion and elongation of rubber conveyor belting

Belt carcass	Adhesive strength		Elongation
Belt carcass	Between plies(N/mm)	Between rubber and carcass	Longitudinal elongation at break%≥	Longitudinal elongation at reference load%≤
EP canvas	≥5	≥5	10	2

Cover rubber Grade

Cover grade	Tensile strength	Elongation	Abrasion	Tensile strength and elongation after aging	Standard
Cover grade	≥	≥	≤	Tensile strength and elongation after aging	Standard
	MPa	%	mm3	%
M	24	450	125	-50	Austrilia Standard AS1332-2000C
N	17	400	200	-50
RMA1	17	400	175	-50	USA Standard
RMA2	14	350	250	-50
Z	15	350	250	-50	Germany Standard DIN22102
Y	20	400	150	-50
X	25	400	120	-50
W	18	400	90	-50
C	10	150	200	-50	Russia standard ГОСТ20-8
N	15	400	100	-50
T2	14.7	300	200	-50
M	14.7	350	150	-50

Cover rubber Characters:

Common Name	ASTM Designation D-1418-79	Composition	General Properties	General Chemical Resistance
Common Name	ASTM Designation D-1418-79	Composition	General Properties	Resistant to:	Attacked by:
Neoprene	CR	Chloroprene	Good Weathering Resistance. Flame retarding. Moderate resistance to pertroleum-based fluids.	Moderate chemicals and acids, ozone, oils, fats, greases, many oils, and solvents.	Strong oxidizing acids, esters, ketones, chlorinated, aromatic and nitro hydrocarbons.
EPDM	EPDM, EPM	Ethylene-propylene-diene; Ethylene-propylene	Excellent resistance to heat, ozone and aging. Very good resistance to abrasion.	Animal and vegetable oils, ozone, strong and oxidizing chemicals.	Mineral oils and solvents, aromatic hydrocarbons.
Buna-N	NBR	Nitrile-butadiene	Excellent resistance to vegetable, animal and petroleum oils.	Many hydrocarbons, fats, oils, greases, hydraulic fluids, chemicals.	Ozone (except PVC blends), ketones, esters, aldehydes, chlorinated and nitro hydrocarbons.
SBR	SBR	Styrene-butadiene	Excellent abrasion resistance and good resistance to cutting, gouging and tearing. Good heat resistance. Not oil resistant.	Most moderate chemicals, wet or dry, organic acids, alcohols, ketones, aldehydes.	Ozone, strong acids, fats, oils, greases, most hydrocarbons.
Butyl	IIR	Isobutylene-isoprene	Excellent resistance to heat. Very good resistance to ozone and aging. Good resistance to abrasion.	Animal and vegetable fats, oils, greases, ozone, strong and oxidizing chemicals.	Petroleum, solvents, coal tar solvents, aromatic hydrocarbons.
Natural, Gum Rubber	NR	Isoprene, natural	Excellent physical properties including abrasion and low temperature resistance. Not oil resistant.	Most moderate chemicals, wet or dry, organic acids, alcohols, ketones, aldehydes.	Ozone, strong acids, fats, oils, greases, most hydrocarbons.
Isoprene, Polyisoprene	IR	Isoprene, synthetic	Similar to natural rubber.	Similar to natural rubber.	Similar to natural rubber.
Butadiene rubber	BR	Polybutadiene	A general purpose synthetic rubber. Generally used in blends with natural or styrene-butadiene rubber. Excellent abrasion resistance and low temperature flexibility. High resilience.	Similar to SBR	Similar to SBR

Cover rubber Grade

Fabric type	Fabric Structure		Fabric specs	Strength series					Cover thickness		Width	Length
Fabric type	Wrap	Wrap	Fabric specs	2 ply	3 ply	4 ply	5 ply	6 ply	Upper	Lower	Width	Length
Nylon (NN)	Nylon (N)	Nylon (N)	NN-100	200	300	400	500	600	1.5-8	0-4.5	300~2500	≤300
			NN-125	250	375	500	625	750
			NN-150	300	450	600	750	900
			NN-200	400	600	800	1000	1200			300~2500
			NN-250	500	750	1000	1250	1500
			NN-300		900	1200	1500	1800
			NN-350		1050	1400	1750	2100			300~2500
			NN-400			1600	2000	2400
			NN-500			2000	2500	3000

Specification:

Spec		NN-80		NN-100		NN-125		NN-150		NN-200		NN-250		NN-300		NN-400		NN-500
Item	unit	warp	weft	warp	weft	warp	weft	warp	weft	warp	weft	warp	weft	warp	weft	warp	weft	warp	weft
Frame	dtex	930	930X1	930	930X1	1400X1	1400X1	1870X2	1400X1	1800X2	1870X2	1400X4	1870X2	1870	1400	1870	1870	1870X4	1870X2
Frame		X1		X1										X4	X2	X3	X2
Density	radical	175	170	196	78	150	60	135	68	176	60	145	60	136	44	120	36	120	38
Density	/10cm	±2	±2	±2	±2	±2	±2	±2	±2	±2	±2	±2	±2	±2	±2	±2	±2	±2	±2
Average breaking strength≥	N/mm	110	50	130	50	155	60	178	68	230	80	285	80	375	90	470	90	565	105
Breaking strength(min)≥		100	45	115	45	135	50	160	60	215	70	260	70	350	80	440	80	520	90
Elongation at 10% load≤	%	2.5		2.5		2.5		2.5		2.5		2.5		2.5		3		3
Elongation at 10% load≤
Elongation at break≤	%	20	60	20	60	20	60	20	50	25	40	25	40	25	40	25	40	25	40
Drying shrinkage % ≤(150ºC*30min)	%	5.5	0.5	5.5	0.5	5.5	0.5	5.5	0.5	5.5	0.5	5.5	0.5	5.5	0.5	6	0.5	6	0.5
Uneven drying shrinkage ≤	%	10		10		10		10		10		10		10		10		10
Adhesion strength≥	N/mm	7.8		7.8		7.8		7.8		7.8		7.8		7.8		7.8		7.8
Weight (grams per m2)	g/m2	260±10		305±15		345±20		390±25		500±30		580±35		690±30		830±35		1200±50
Thickness	mm	0.45±0.05		0.50±0.05		0.55±0.05		0.65±0.05		0.85±0.05		0.90±0.10		1.20±0.10		1.35±0.12		1.40±0.14
width	mm	0 0		0 0		0 0		0 0		0 0		0 0		0 0		0 0		0 0
		800~1400		800~1400		800~1500		800~1600		800~1600		800~1600		800~1600		800~1600		800~1600
		-40		-40		-40		-40		-40		-40		-40		-40