二十 胶带输送机.docx

二十 胶带输送机1#配料胶带输送机规格型号：TD75-10063 L=45.6m V=1.25m/s W=9.056t用途：安装于原料仓正下方输送原料图号：SHL253T-3-4序号名称规格型号技术参数数量图号1电动机Y132M-47.5Kw1台SHL253T-3-22减速机ZQ50-40-Ii=401台Y1-50132M-903柱销联轴器YA3880ZC501101套HL170.2Y4十字滑块联轴器YP80150YA901751套SL190.45弹簧清扫器B=100020Kg1套TD4E46传动滚筒D=630 B=1000G=467Kg轴承35201套TD4A34包胶7改向滚筒D=400B=1000G=191Kg轴承13121套TD4B28槽形托辊108375轴承30566个TD4C19槽形托辊支架B=100042TD4C110槽形调心托辊支架B=10003件TD4C411立辊608件TD4C412平行下托辊1081150轴承30514件TD4C313吊耳B=100026件TD4C314平行下调心支架B=10001件TD4C615槽形缓冲托辊（橡胶圈式）108375轴承30569件TD4C916空段清扫器B=100020Kg1套TD4E017改向滚筒D=500319Kg轴承3161套TD4B318螺旋拉紧装置行程S=50044.7Kg1套（2付）TD4D119皮带B=10006层上胶3.0 下胶1.595m实际79 m20头部护罩B=1000 D=630145Kg1件TD4J11-121头部漏斗B=1000 D=630168Kg1件TD4J13-12#配料胶带输送机规格型号：TD75-8050 L=43.1m V=1.25m/s W=5.43t用途：将混合原料从1#皮带转运到烘干机图号：SHL253T-3-5序号名称规格型号技术参数数量图号1电动机Y160M-411Kw1台SHL253T-3-22减速机ZQ50-23.34-Ii=23.341台Y1-50160M-703柱销联轴器YA42110ZC501101套HL170.3Y4十字滑块联轴器YP80150YA901751套SL190.35弹簧清扫器B=80014Kg1套TD3E36传动滚筒D=500G=316Kg轴承13161套TD3A33包胶7改向滚筒D=320B=800G=134Kg轴承13121套TD3B18槽形托辊89305轴承20499个TD3C19槽形托辊支架B=80033件TD3C110槽形上调心托辊支架3件TD3C411立辊608件TD3C412平行下托辊89950轴承20414件TD3C313吊耳26件TD3C314平行下调心支架1件TD3C615槽形缓冲托辊（橡胶圈式）89305轴承2049个TD3C916空段清扫器B=80015Kg1套TD3E017改向滚筒D=400 B=950D=400 221Kg轴承13161套TD3B218螺旋拉紧装置行程S=500 B=80036.6Kg1套（2付）TD3D119皮带B=8006层 1074Kg上胶3.0 下胶1.591m20头部护罩B=800 D=500100Kg1件TD3J11-121头部漏斗B=800 D=500148Kg1件TD3J13-1干燥1#胶带输送机规格型号：TD75-8050 L=6.59m V=1.6m/s W=3.836t用途：输送烘干原料图号：SHL253T-4-4序号名称规格型号技术参数数量图号1电动机Y100L2-43Kw1台SHL253T-4-42减速机ZQ35-31.5-Ii=31.51台SHL253T-4-43柱销联轴器YA2860ZC401101套HL150.2Y4十字滑块联轴器YP55110YA701351套SL190.15弹簧清扫器B=80014Kg1套TD3E36传动滚筒B=800D=500G=316Kg轴承13161套TD3A33包胶7改向滚筒D=320 B=800G=134Kg轴承13121套TD3B18槽形托辊89305轴承2049个TD3C19槽形托辊支架B=8005件TD3C110槽形上调心托辊支架B=8001件TD3C411立辊604件TD3C412平行下托辊89950轴承20419Kg2件TD3C313吊耳2件TD3C314平行下调心支架B=8001件TD3C615槽形缓冲托辊（橡胶圈式）89305轴承2049个TD3C916空段清扫器B=80015Kg1套TD3E017改向滚筒D=400B=800221Kg轴承13161套TD3B218螺旋拉紧装置行程S=500 B=80036.6Kg1套（2付）TD3D119皮带B=8005层 上胶4.5 下胶1.517mSHL235T-4-420头部护罩B=800 D=5001件TD3J11-121头部漏斗B=800 D=500148Kg1件TD3J13-1干燥2#胶带输送机规格型号：TD75-8050 L=32.62m V=1.6m/s W=5.306t =200用途：输送原料图号：SHL253T-4-5序号名称规格型号技术参数数量图号1电动机Y160M-411Kw1台Y1-50160M-702减速机ZQ50-40.17-Ii=251台Y1-50160M-703柱销联轴器YA42110ZC501101套HL170.3Y4十字滑块联轴器YP80150YA701351套SL190.35弹簧清扫器B=80014Kg1套TD3E36传动滚筒B=800D=500G=316Kg轴承13161套TD3A33包胶7改向滚筒D=320 B=800G=134Kg轴承13121套TD3B18槽形托辊B=80078个TD3C19槽形托辊支架B=80031件TD3C110槽形上调心托辊支架B=8001件TD3C411立辊604件TD3C412平行下托辊89950轴承20419Kg12件TD3C313吊耳B=80022件TD3C314平行下调心支架B=8001件TD3C615槽形缓冲托辊（橡胶圈式）B=80089305轴承20418个TD3C916空段清扫器B=80015Kg1套TD3E017改向滚筒D=400B=800221Kg轴承13161套TD3B218螺旋拉紧装置行程S=500 B=80036.6Kg1套（2付）TD3D119皮带B=8004层上胶4.5 下胶1.575m20头部护罩B=800 D=5001件TD3J11-121头部漏斗B=800 D=500148Kg1件TD3J13-1磨-1胶带输送机规格型号：TD75-8050 L=10.723m V=1.25m/s W=2.357t 用途：输送原料图号：SHL253T-5-8序号名称规格型号技术参数数量图号1电动机Y132S-45.5Kw1台SHL253T-5-82减速机ZQ50-31.5-Ii=31.51台Y1-40132S-703柱销联轴器YA3880ZC401101套HL150.3Y4十字滑块联轴器YP80150YA701351套SL190.35弹簧清扫器B=80014Kg1套TD3E36传动滚筒B=950D=500G=316Kg轴承13161套TD3A33包胶7改向滚筒D=320 B=950G=134Kg轴承13121套TD3B18槽形托辊B=80089305轴承20418个TD3C19槽形托辊支架B=8009件TD3C110槽形上调心托辊支架B=8001件TD3C411立辊602件TD3C412平行下托辊89950轴承20419Kg3件TD3C313吊耳B=8006件TD3C314平行下调心支架B=8001件TD3C615槽形缓冲托辊（橡胶圈式）B=80089305轴承20412个TD3C916空段清扫器B=80015Kg1套TD3E017改向滚筒D=400B=800221Kg轴承13161套TD3B218螺旋拉紧装置行程S=500 B=80036.6Kg1套（2付）TD3D119皮带B=8004层上胶4.5 下胶1.526m20头部护罩B=800 D=500100 Kg1套TD3J11-221头部漏斗B=800 D=500150Kg1件TD3J13-2磨-2胶带输送机规格型号：TD75-8063 L=39.79m V=1.25m/s W=5.223t 用途：输送原料图号：SHL253T-5-9序号名称规格型号技术参数数量图号1电动机Y132M-47.5Kw1台Y2-50132M-702减速机ZQ50-31.5-Ii=31.51台Y2-50132M-703柱销联轴器YA3880ZC501101套HL170.2Y4十字滑块联轴器YP80150YA701351套SL190.35弹簧清扫器B=80014.5Kg1套TD3E36传动滚筒B=800D=500G=316Kg轴承13161套TD3A33包胶7改向滚筒D=320 B=800G=134Kg轴承13121套TD3B18槽形托辊B=80089305轴承20496个TD3C19槽形托辊支架B=80032件TD3C110槽形上调心托辊支架B=8003件TD3C411立辊6010件TD3C412平行下托辊89950轴承20419Kg11件TD3C313吊耳B=80018件TD3C314平行下调心支架B=8002件TD3C615槽形缓冲托辊（橡胶圈式）B=80089305轴承2049个TD3C916空段清扫器B=80015Kg1套TD3E017改向滚筒D=400B=800221Kg轴承13161套TD3B218螺旋拉紧装置行程S=800 B=80036.6Kg1套（2付）TD3D119皮带B=800上胶4.5 下胶1.585m20头部护罩B=800 100 Kg1套TD3J11-221头部漏斗B=800 150Kg1件TD3J13-2磨-3胶带输送机规格型号：TD75-8050 L=44.13m V=1.25m/s W=7.5t =100 用途：输送原料图号：SHL253T-5-10序号名称规格型号技术参数数量图号1电动机Y132M-47.5Kw1台Y2-50132M-702减速机ZQ50-31.5-Ii=31.51台Y2-50132M-703柱销联轴器YA3880ZC501101套HL170.2Y4十字滑块联轴器YP80150YA701351套SL190.35弹簧清扫器B=80014.5Kg1套TD3E36传动滚筒B=800D=500G=316Kg轴承13161套TD3A33包胶7改向滚筒D=320 B=800G=134Kg轴承13121套TD3B18槽形托辊B=80089305轴承20496个TD3C19槽形托辊支架B=80032件TD3C110槽形上调心托辊支架B=8003件TD3C411立辊6010件TD3C412平行下托辊89950轴承20419Kg11件TD3C313吊耳B=80018件TD3C314平行下调心支架B=8002件TD3C615槽形缓冲托辊（橡胶圈式）B=80089305轴承2049个TD3C916空段清扫器B=80016Kg1套TD3E017改向滚筒D=400B=800221Kg轴承13161套TD3B218螺旋拉紧装置行程S=800 B=80036.6Kg1套（2付）TD3D119皮带B=800上胶4.5 下胶1.585m20头部护罩B=800 100 Kg1套TD3J11-221头部漏斗B=800 150Kg1件TD3J13-21#造球胶带输送机规格型号：TD75-8063 L=104.6m V=1.25m/s W=14.8085t =180 用途：将原料输送到造球室图号：SHL253T-6-7序号名称规格型号技术参数数量图号1电动机Y160L-415Kw1台Y2-65160L-902减速机ZQ65-31.5-IIi=31.51台Y265160L-903柱销联轴器YA42110ZC601401套HL220.2Y4十字滑块联轴器YP110200YA901751套SL260.45弹簧清扫器B=80014.5Kg1套TD3E46传动滚筒B=800D=630G=426Kg轴承35201套TD3A34包胶7改向滚筒D=320 B=800G=134Kg轴承13121套TD3B18槽形托辊B=80089305轴承204174个TD3C19槽形托辊支架B=80061件TD3C110槽形上调心托辊支架B=8007件TD3C411立辊6026件TD3C412平行下托辊89950轴承204 19Kg60件TD3C313吊耳B=80064件TD3C314平行下调心支架B=8004件TD3C615槽形缓冲托辊（橡胶圈式）B=80089305轴承20430个TD3C916空段清扫器B=80016Kg1套TD3E017改向滚筒D=400B=800237Kg轴承13162套TD3B218皮带B=800Z=6上胶6.0mm 下胶1.5mm220m19头部护罩B=800 D=630 116 Kg1套TD3J11-220改向滚筒B=800 D=500254Kg2套TD3B321平行上托辊支架B=80022件TD3C222平行上调心支架B=8002件TD3C523垂直拉紧装置B=800 D=5001件TD3D3324垂直拉紧装置框架1件TD3J52#造球胶带输送机规格型号：TD75-8050 L=99.223m V=1.25m/s W=13.8066t 用途：输送生球图号：SHL253T-6-8序号名称规格型号技术参数数量图号1电动机Y160L-415Kw1台Y2-65160L-70N2减速机ZQ65-40-IIi=401台Y2-65160L-70N3柱销联轴器YA42110ZC601401套HL220.2Y4十字滑块联轴器YP110200YA701351套SL260.35弹簧清扫器B=80014.5Kg1套TD3E36传动滚筒B=800D=500G=316Kg轴承13161套TD3A33包胶7改向滚筒D=320 B=800G=134Kg轴承13121套TD3B18槽形托辊B=80089305轴承204237个TD3C19槽形托辊支架B=80092件TD3C110槽形上调心托辊支架B=8008件TD3C411立辊6016件TD3C412平行下托辊89950轴承20419Kg34件TD3C313吊耳B=80068件TD3C314平行下调心支架B=8006件TD3C615槽形缓冲托辊（橡胶圈式）B=80089305轴承20463个TD3C916空段清扫器B=80016Kg1套TD3E017改向滚筒D=400B=800237Kg轴承13161套TD3B218车式拉紧装置 B=8001套TD3D2219皮带B=800Z=6上胶6mm 下胶1.5mm220m20头部护罩B=800 100 Kg1套TD3J11-221头部漏斗B=800 150Kg1件TD3J13-2PRTS-1胶带输送机规格型号：TD75-5050 L=16m V=1m/s 用途：输送未烘干的膨润土图号：PRTS-1-1序号名称规格型号技术参数数量图号1电动机Y112M-44Kw1台Y1-40112M-552减速机ZQ40-40-Ii=401台Y1-40112M-553柱销联轴器YA2860ZC401101套HL150.2Y4十字滑块联轴器YP80150YA551151套SL190.25螺栓M123596套固定上下托辊支架6传动滚筒B=500D=500G=168Kg轴承13121套TD1A33包胶7改向滚筒D=320 B=500G=93Kg轴承13101套TD1B18槽形托辊B=50089190轴承20451个TD1C19槽形托辊支架B=50016件TD1C110槽形上调心托辊支架B=5001件TD1C411立辊606件TD1C412平行下托辊89600轴承2047件TD1C313吊耳B=50010件TD1C314平行下调心支架B=5002件TD1C615空段清扫器B=50011Kg1套TD1E016改向滚筒D=400B=500104Kg轴承13101套TD1B217螺旋拉紧装置 S=5001套TD1D118弹簧清扫器B=500TD1E3PRTS-2胶带输送机规格型号：TD75-5050 L=28.5m V=1m/s 用途：输送烘干的膨润土图号：PRTS-1-1序号名称规格型号技术参数数量图号1电动机Y132S-45.5Kw1台Y1-50132S-552减速机ZQ50-40-Ii=401台Y1-50132S-553柱销联轴器YA3880ZC501101套HL170.2Y4十字滑块联轴器YP80150YA551151套SL190.25螺栓M1235176套固定上下托辊支架6传动滚筒B=500D=500G=168Kg轴承13121套TD1A33包胶7改向滚筒D=320 B=500G=93Kg轴承13101套TD1B18槽形托辊B=50089190轴承20496个TD1C19槽形托辊支架B=50028件TD1C110槽形上调心托辊支架B=5004件TD1C411立辊6014件TD1C412平行下托辊89600轴承2049件TD1C313吊耳B=50018件TD1C314平行下调心支架B=5003件TD1C615空段清扫器B=5001套TD1E016改向滚筒D=400B=500140Kg轴承13101套TD1B217螺旋拉紧装置 S=5001套TD1D118弹簧清扫器B=500TD1E31#成品胶带输送机规格型号：TD75-8050 L=28.2865m V=1.25m/s W=2.703t =11.770 用途：转运成品球图号：序号名称规格型号技术参数数量图号1电动机Y132M-47.5Kw1台Y2-50132M-702减速机ZQ50-23.34-Ii=23.341台Y2-50132M-703柱销联轴器YA3880ZC501101套HL170.2Y4十字滑块联轴器YP80150YA701351套SL190.35弹簧清扫器B=80014.5Kg1套TD3E36传动滚筒B=800D=500G=304Kg轴承13161套TD3A33包胶7改向滚筒D=320 B=800G=134Kg轴承13121套TD3B18槽形托辊B=80089305轴承20451个TD3C19槽形托辊支架B=80029件TD3C110槽形上调心托辊支架B=8002件TD3C411立辊606件TD3C412平行下托辊89950轴承20419Kg9件TD3C313吊耳B=80016件TD3C314平行下调心支架B=8001件TD3C615槽形缓冲托辊（橡胶圈式）B=80089305轴承20418个TD3C916空段清扫器B=80016Kg1套TD3E017改向滚筒D=400B=800237Kg轴承13161套TD3B218螺旋拉紧装置 B=800S=5001套TD3D119耐热皮带B=800Z=5上胶3.0mm 下胶1.5mm64m耐热1000C2#成品胶带输送机规格型号：TD75-8063 L=127.7m V=1.25m/s W=16.9t =120 用途：输送成品球图号：序号名称规格型号技术参数数量图号1电动机Y180L-422Kw1台Y2-75180L-902减速机ZQ75-31.5-Ii=31.51台Y2-75180L-903柱销联轴器YA48110ZC601401套HL220.3Y4十字滑块联轴器YP110200YA901751套SL260.45弹簧清扫器B=80014.5Kg1套TD3E46传动滚筒B=800D=630G=426Kg轴承35201套TD3A34包胶7改向滚筒D=320 B=800G=134Kg轴承13121套TD3B18槽形托辊B=80089305轴承204225个TD3C19槽形托辊支架B=80071件TD3C110槽形上调心托辊支架B=8009件TD3C411立辊6038件TD3C412平行下托辊89950轴承204 19Kg75件TD3C313吊耳B=80076件TD3C314平行下调心支架B=8008件TD3C615槽形缓冲托辊（橡胶圈式）B=80089305轴承20415个TD3C916空段清扫器B=80016Kg1套TD3E017改向滚筒D=500B=800237Kg轴承13162套TD3B318车式拉紧装置 B=8001套TD3D-2190螺栓M1235固定上下托辊支架20耐热皮带B=800Z=6上胶6.0mm 下胶1.5mm262m耐热1000C21钢丝绳15.510m22改向绳轮2506件TD3D-223平行上托辊支架B=80027件TD3C224平行上调心支架B=8002件TD3C53#成品胶带输送机规格型号：TD75-8063 L=122m V=1.6m/s =120 用途：输送成品球图号：序号名称规格型号技术参数数量图号1电动机Y200L-430Kw1台Y1-75200L-902减速机ZQ75-31.5-IIi=31.51台Y1-75200L-903柱销联轴器YA55110ZC601401套HL220.4Y4十字滑块联轴器YP110200YA901751套SL260.45弹簧清扫器B=80014.5Kg1套TD3E46传动滚筒B=800D=630G=426Kg轴承35201套TD3A34包胶7改向滚筒D=320 B=800G=134Kg轴承13121套TD3B18槽形托辊B=80089305轴承204309个TD3C19槽形托辊支架B=800108件TD3C110槽形上调心托辊支架B=80010件TD3C411立辊6034件TD3C412平行下托辊89950轴承20419Kg43件TD3C313吊耳B=80072件TD3C314平行下调心支架B=8007件TD3C615槽形缓冲托辊（橡胶圈式）B=80089305轴承20445个TD3C916空段清扫器B=80016Kg1套TD3E017改向滚筒D=500B=800237Kg轴承13162套TD3B318车式拉紧装置 B=8001套TD3D-2190螺栓M1235固定上下托辊支架20耐热皮带B=800Z=6上胶6.0mm 下胶1.5mm258m耐热1000C21钢丝绳15.510m22改向绳轮2506件TD3D-24#成品胶带输送机规格型号：TD75-8063 L=91.02m V=1.6m/s W=15.949t =120 用途：输送成品球图号：序号名称规格型号技术参数数量图号1电动机Y180L-422Kw1台Y1-65180M-902减速机ZQ65-31.5-Ii=31.51台Y1-65180M-903柱销联轴器YA48110ZC601401套HL220.3Y4十字滑块联轴器YP110200YA901751套SL260.45弹簧清扫器B=80014.5Kg1套TD3E46传动滚筒B=800D=630轴承35201套TD3A34包胶7改向滚筒D=320 B=800G=134Kg轴承13121套TD3B18槽形托辊B=80089305轴承204237个TD3C19槽形托辊支架B=80079件TD3C110槽形上调心托辊支架B=8007件TD3C411立辊6022件TD3C412平行下托辊89950轴承20419Kg33件TD3C313吊耳B=80058件TD3C314平行下调心支架B=8004件TD3C615槽形缓冲托辊（橡胶圈式）B=80089305轴承20418个TD3C916空段清扫器B=80015Kg1套TD3E017改向滚筒D=400B=800221Kg轴承13123套TD3B218改向滚筒D=500轴承1316237kg1套TD3B3螺旋拉紧装置行程S=800 B=80036.6Kg1套（2付）TD3D119耐热皮带B=800Z=6上胶6.0 下胶1.5190m耐热1000C6#成品胶带输送机规格型号：TD75-8063 L=65.009m V=1.6m/s W=10.806t =5.910 用途：输送成品球图号：序号名称规格型号技术参数数量图号1电动机Y200L-430Kw1台Y2-75200L-902减速机ZQ75-40-IIi=401台Y2-75200L-903柱销联轴器YA55110ZC601401套HL220.4Y4十字滑块联轴器YP110200YA901751套SL260.45弹簧清扫器B=80014.5Kg1套TD3E46传动滚筒B=800D=630轴承35201套TD3A34包胶7改向滚筒D=320 B=800G=134Kg轴承13121套TD3B18槽形托辊B=80089305轴承204162个TD3C19槽形托辊支架B=80052件TD3C110槽形上调心托辊支架B=8006件TD3C411立辊6018件TD3C412平行下托辊89950轴承20419Kg22件TD3C313吊耳B=80038件TD3C314平行下调心支架B=8003件TD3C615槽形缓冲托辊（橡胶圈式）B=80089305轴承20415个TD3C916空段清扫器B=80015Kg1套TD3E017改向滚筒D=400B=800221Kg轴承13122套TD3B218改向滚筒D=500轴承1316237kg2套TD3B319螺栓M1235固定上下托辊支架20耐热皮带B=800Z=6上胶6.0 下胶1.5140m1000C返-1胶带输送机规格型号：TD75-5050 L=50m V=0.8m/s 用途：输送返料序号名称规格型号技术参数数量图号1电动机Y132S-45.5Kw1台Y1-50132S-552减速机ZQ50-40-Ii=401台Y1-50132S-553柱销联轴器YA3880ZC501101套HL170.2Y4十字滑块联轴器YP80150YA551151套SL190.25螺栓M1235套固定上下托辊支架6传动滚筒B=500D=500G=168Kg轴承13121套TD1A33包胶7改向滚筒D=320 B=500G=93Kg轴承13101套TD1B18槽形托辊B=50089190轴承204165个TD1C19槽形托辊支架B=50050件TD1C110槽形上调心托辊支架B=5005件TD1C411立辊6020件TD1C412平行下托辊89600轴承20420件TD1C313吊耳B=50030件TD1C314平行下调心支架B=5005件TD1C615空段清扫器B=5001套TD1E016改向滚筒D=400B=500140Kg轴承13101套TD1B217螺旋拉紧装置 S=5001套TD1D118弹簧清扫器B=500TD1D3返-2胶带输送机规格型号：TD75-5050 L=70m V=0.8m/s 用途：输送返料序号名称规格型号技术参数数量图号1电动机Y132S-45.5Kw1台Y1-50132S-552减速机ZQ50-50-Ii=501台Y1-50132S-553柱销联轴器YA3880ZC501101套HL170.2Y4十字滑块联轴器YP80150YA551151套SL190.25螺栓M1235套固定上下托辊支架6传动滚筒B=500D=500G=168Kg轴承13121套TD1A33包胶7改向滚筒D=320 B=500G=93Kg轴承13101套TD1B18槽形托辊B=50089190轴承204231个TD1C19槽形托辊支架B=50070件TD1C110槽形上调心托辊支架B=5007件TD1C411立辊6028件TD1C412平行下托辊89600轴承20437件TD1C313吊耳B=50060件TD1C314平行下调心支架B=5007件TD1C615空段清扫器B=5001套TD1E016改向滚筒D=400 B=500140Kg轴承13101套TD1B217螺旋拉紧装置 S=5001套TD1D118弹簧清扫器B=500TD1D3返-4胶带输送机规格型号：TD75-5050 L=25m V=0.8m/s 用途：输送返料序号名称规格型号技术参数数量图号1电动机Y132S-45.5Kw1台Y1-50132S-552减速机ZQ50-50-Ii=501台Y1-50132S-553柱销联轴器YA3880ZC501101套HL170.2Y4十字滑块联轴器YP80150YA551151套SL190.25螺栓M1235套固定上下托辊支架6传动滚筒B=500D=500G=168Kg轴承13121套TD1A33包胶7改向滚筒D=320 B=500G=93Kg轴承13101套TD1B18槽形托辊B=50089190轴承20475个TD1C19槽形托辊支架B=50050件TD1C110槽形上调心托辊支架B=5002件TD1C411立辊608件TD1C412平行下托辊89600轴承2048件TD1C313吊耳B=5006件TD1C314平行下调心支架B=500