Different type idlers of model for different application:Ordinary idler: grain, loading and transportationTrough idler: coal, cement, power,aggregatesGroove type self-aligning idler: smelting metal,Mine, electric power, cement, chemical industry, building materials, steel plant, transportation equipment.Ground roller: applicable to mining industryStop roll, vertical roll: belt conveyorSuspend idler: applicable range belt conveyorBackstop idler: suitable for metallurgy,Mine, electric power, cement, chemical industry, building materials, steelScrew idler:1) Spiral lower idler: applicable to coal, electric power, metallurgy, chemical industry, building materials2) Spiral cleaning idler: applicable to coal mine machinery3) Two direnction spiral rubber idler: applicable object conveyor, packaging machinery, food machinery, mining equipment, othersParallel idler:1) Parallel upper supporting roller (supporting conveyor belt and material weight): parallel lower supporting roller: application scope: port transportation terminal, mine transportation, mechanical equipment2) Parallel upper center idler/ Parallel lower Center idler: scope of application to prevent belt deviationComb idler: mine, wharf, coal, power plant, coking;Tapered idler:1) Tapered upper Aligning idler: application fields: port, electric power, coal mine, machinery plant, grain transportation, chemical industry2) Tapered Lower Aligning idler: application fields: port, power, coal mine, machinery plant, grain transportation, chemical industryFriction idler: metallurgy, chemical industry, coal, building materialsFriction upper Aligning idler/Friction lower Aligning idler: applicable range conveying machineryBuffer(Impact) idler: applicable to power plant and cement plantRubber ring buffer (impact)idler: special for idlerParallel buffer (impact)idler: applicable to coal mineAdjustable groove angle double spring buffer (impact) idler set: application scope: port transport terminal, mine transport, mechanical equipment;