HR & OR Belt (Heat & Oil Resistance)

Monster Heat & Oil Resistance belt are manufactured using specially formulated rubber compounds. They are suitable for transporting a very wide range of materials which are coated with oil or may have traces of it.

Few applications demand a certain degree of resistance to oil. The general purpose conveyor belts are designed to withstand abrasion and wear, however they are not designed to withstand a higher level of oil resistance. This results in the swelling of cover when they come into contact with petroleum based oils, greases, animal or vegetable fats, etc. The resultant swelling of the rubber leads to failure of the belt due to reverse troughing, joint separation or cover delamination.

To address this challenge, we offer a large range of Oil Resistant belts in the industry which can be customised to suit individual industry needs.

Application:

Metal turnings
Hot asphalt/ Hot mix plants
Scrap recycling and compost handling
Coated fertiliser products
Refineries for handling pet coke
Soya and grain handling facilities

Benefits:

They have a high degree of chemical resistance.
They have unique properties to prevent material build up.
They can be designed to convey oily materials, thereby resulting in higher belt life.
The occurrence of reverse troughing of belts can be eliminated.

Heat Resistant Conveyor Belting – HR

Performance proven Heat & Oil Resistance belt recommended to protect conveyor belting from surface cracking and hardening by heat from hot service applications like hot sintered ore, hot pellet, hot clinker, hot chemical, fertilizer and hot cement, etc. Heat and abrasion resistant cover rubber has been heat treated and dipped to minimize carcass shrinkage and heat aging.
Please see the table below to get an idea of your needs based on materials transported on belting.

Heat Resistant Conveyor Belt Belts HR Grade, UHR GRADE, SHR

The rubber cover protects the fabric of the belt against hot materials such as alumina, ash, granite, iron and copper, grit etc, available in various grades.
Provide variety of heat resistance conveyor belt
— HR GRADE HEAT RESISTANCE CONVEYOR BELT
— SHR GRADE SUPER HEAT RESISTANCE CONVEYOR BELT
— UHR GRADE ULTRA HEAT RESISTANCE CONVEYOR BELT

COVER GRADE SELECT CHART

Cover Type	Standard/ Grade	Minimum Tensile Strength	Minimum Elongation at Break (%)	Maximum Swelling in Fuel B (%)	Reference Material
High Oil Resistant	AR-HiOR	15	350	35	Convey materials like Crude petroleum, oil coated products, oil coated products, etc.
Oil Resistant	AR-OR IS-OR, AS-Z, DIN-G	12.5	350	70	Materials like light oil coated sand, food grains, oil-seeds, etc.
Moderate Oil Resistant	AR-MOR	12.5	350	110	Materials like oil seeds, wood chips, vegetable oil coated products, etc.
Oil and Heat Resistant	AR-SOR-HR	12	300	70	Heat resistant up to 125°C, used for hot asphalt handling
High Heat and Oil Resistant	AR-SHR-SOR	12	300	55	Moderate heat resistant up to 100°C, for handling tar coated material
Oil Resistant and High Abrasion	AR-OR-HAR	12	300	60	High wear resistant meant for
Oil, Heat and Fire Resistant	AR-OR-HR-FR	12	300	60

MATERIALS AND BELT SURFACE TEMPERATURES

Materials Carried	Lump Size	Termperature of Material Carried	Belt Surface Temperature
Sintered Ore	25-200 mm (1-8 inch)	200-400ºC (390-750ºF)	130-150ºC (270-300ºF)
Return of Sintered Ore	Below 10 mm (0.4 inch)	260ºC (480ºF)	150-190ºC (300-370ºF)
Coke	100-200 mm (4-8 inch)	70-100ºC (160-210ºF)	50-60ºC 120-140ºF)
Raw Material	Below 30 mm (1.2 inch)	180-220ºC (360-410ºF)	100-120ºC (210-250ºF)
Clinker	10-30 mm (0.4 – 1.2 inch)	100-220ºC (210-440ºF)	100-110ºC (210-230ºF)
Cement	Powder	100-125ºC (210-250ºF)	80-90ºC (170-190ºF)
Metal Powder	–	170ºC (340ºF)	120-130ºC (250-270ºF)
Molding Sand	–	200-250ºC (390-480ºF)	80-90ºC (170-190ºF)

Heat resistant belts are best suited for conveying product that is over 60º (140º F). The surface temperature of heat resistant belting varies with the material type, belt speed, loading rate and size. To select the proper heat resistant belting, consider not only the material temperature to be conveyed but the surface temperature of the belt as well.