Double Arrow Conveyor Roller description:
Conveyor rollers(idlers) are important parts on Belt Conveyor, it endure over 70% resistance of one belt conveyor. The conveyor roller(idler) used for supporting conveyor belt and the material. There are kinds roller we supplied, like steel, nylon, ceramic or rubber. With years designing and manufacturing experience Double Arrow becomes a high quality roller(idler) server in conveyor spares industry.
Summary of the conveyor roller information:
Material: | steel, nylon, SS, ceramic, PVC, UHMWPE, HDPE |
Bearing Model: | 6204,6205,6305,6306,6307,6308 |
Bearing Brand: | HRB, LYC, ZWZ,SKF, NSK,C&U |
Working Life: | ≥30000 hours |
Diameter: | D38mm to D200mm |
Belt Width: | B450mm to B2200mm |
Application: | recycling industry power industry parcel transport industry petro industry coal mining industry cement concrete industry machining industry |
Standard | CEMA/JIS/DIN/Australia |
Special: | can be customized according to customer or design for customer |
Supply Ability: | 1000pcs per day |
Certificate: | ISO9001:2008, BV, SGS,TUV |
Some standard idlers:
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DOUBLE ARROW projects:
Double Arrow products are widely used in coal mines, metallurgy, machinery, ports, construction, electricity, chemistry, food packing and other industries.

Our factory equipment:
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Customer visit DOUBLE ARROW
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DOUBLE ARROW inspection:
Double Arrow obtained the ISO9001: 2008 in2010, and with 10 years designing and manufacturing experience . DOUBLE ARROW products are good conveyor system brand in China .
Double Arrow Conveyor Roller description:
Conveyor rollers(idlers) are important parts on Belt Conveyor, it endure over 70% resistance of one belt conveyor. The conveyor roller(idler) used for supporting conveyor belt and the material. There are kinds roller we supplied, like steel, nylon, ceramic or rubber. With years designing and manufacturing experience Double Arrow becomes a high quality roller(idler) server in conveyor spares industry.
Summary of the conveyor roller information:
Material: | steel, nylon, SS, ceramic, PVC, UHMWPE, HDPE |
Bearing Model: | 6204,6205,6305,6306,6307,6308 |
Bearing Brand: | HRB, LYC, ZWZ,SKF, NSK,C&U |
Working Life: | ≥30000 hours |
Diameter: | D38mm to D200mm |
Belt Width: | B450mm to B2200mm |
Application: | recycling industry power industry parcel transport industry petro industry coal mining industry cement concrete industry machining industry |
Standard | CEMA/JIS/DIN/Australia |
Special: | can be customized according to customer or design for customer |
Supply Ability: | 1000pcs per day |
Certificate: | ISO9001:2008, BV, SGS,TUV |
Some standard idlers:

DOUBLE ARROW projects:
Double Arrow products are widely used in coal mines, metallurgy, machinery, ports, construction, electricity, chemistry, food packing and other industries.

Our factory equipment:

Customer visit DOUBLE ARROW

DOUBLE ARROW inspection:
Double Arrow obtained the ISO9001: 2008 in2010, and with 10 years designing and manufacturing experience . DOUBLE ARROW products are good conveyor system brand in China .
Fuel metering unit also known as the proportional valve into the oil metering. It is installed in the high-pressure oil pump into the position for adjusting the fuel supply and fuel pressure value, controlled by the ECU. The control process is influenced by the values measured by the rail Pressure Sensor. Simply put, the metering unit can be compared to a throttle valve, can also be compared to a variable size faucet. The fuel metering unit belongs to the precision element.
If the maintenance is not appropriate or the use of poor quality filter, often lead to fuel in the water or impurities too much to cause fuel metering valve spool wear or stagnation, resulting in the engine can not work properly.
Fuel Metering Valve,fuel metering unit,Fuel Measurement Valve,Fuel Metering Solenoid Valve,Fuel meaurement unit
RUIAN DELLFEI AUTO PARTS CO.,LTD. , https://www.dellfei.com