Flame Retardant Conveyor Belts

APPLICATIONS

These types of belts have a good resistance to open flames and protect the entire conveyor against open fire. This high level of protection against fire helps to stop the spread of fire over the belt. These types of belts are used in temperatures ranging from – 30 to +70 °C. The carcass of the belts consists of several plies of EP fabrics separated by rubber interlayer and covered with fire resistant an antistatic rubber covers.

Flame retardant conveyor belts meet all requirements of fire protection standards included in DIN 22 102 and they have improved fire resistance (DIN 22 103) and anti-static properties (DIN 22 104). The carcass is made of polyamide/polyester (EP), polyester/polyester (EE) fabrics.

Dimensions	Width, mm.		800 – 1800 ± 1%
	Thickness of belt , mm		8 – 24
	Thickness of covers, mm	On customer’s demand
	Deviation from thickness belt	under 10 mm	± 1 mm
		over 10 mm	± 10 %
	rubber cover	under 4 mm	– 0, 2 mm / + free
		over 4 mm	– 5 % / + free
	Length, m,

PRODUCT CHARACTERISTICS

Characteristics of insertions

Insertions number

2 – 6

Type of insertion

EP
80

EP
100

EP
125

EP
160

EP
200

EP
250

EP
315

EP
400

EP
500

Tensile strength, kgf, (for 50mm x 200mm)

longitudinal

500

700

800

1000

1200

1500

2000

2200

2800

transversal

250

350

380

500

Adhesion, kgf/cm, min.

between plies

between insertions and rubber covers

under 1.5 mm

3.5

over 1.5 mm

4.5

Edges

covered edges

Surfaces

both surfaces covered

Breaking force of conveyor belt,(kgf/cm)

It is given by the type and number of insertions

Type cover

Standard

Temperature range

Flame resistant

Carcass Mixture composition

Cover Mixture composition

DIN 22102/1-91 S

– 30….. +70 °C

Antistatic and highly inflammable belt

SBR
+ NR

DIN 22102/1-91 K

– 30….. +70 °C

Antistatic belt with flame resistant covers

SBR
+ NR

THE TYPE OF RUBBER FROM COVER FACES

Belt type		daN/cm2	Tensile strength, min., at break, min. (%)	Elongation max., (mm3)	Abrasion loss	Electrical resistance resistance of the surface in accordance with SR EN20284 (DIN 22104), Ώ max…	Fire resistant product is in accordance with SR ISO 340(DIN 22103); (flame resistance time after retirement of burner);
Group	Types	Standards					Number for each group of 6 test samples, (s), max.	Number for each tested sample, (s), max.
1.	S	Technical Card 720	150	400	200	3 x 108	45 *)	15 *)
2.	K	Technical Card 654	150	350	200	3 x 108	45 **)	15 **)

*) Fire resistance in accordance with SR ISO 340 (DIN 22103) is established on test samples with or without covers.

**) Fire resistance in accordance with SR ISO 340 (DIN 22103) is established only on test samples with covers.