天津市恒庆机械有限公司是创建于八十年代的生产浮动油封的专业厂，主要生产国内外推士机挖掘机农业机械矿山机械筑路机械建设机械煤矿机械和汽车等所用的各种规格浮动油封。生产规模、产品品种、产量、型号市场占有率均为中国之。目前全厂职工300多人。拥有的专业人才，致力于浮动油封的研究和开发，积累了丰富的经验。有壹百多台设备，铸、车、磨、生产。产品规格从φ50到φ750,具有每年生产四百万只浮动油封的生产能力。工厂占地12000m2,建筑面积8000m2。生产的浮动油封采用日、美、德各国家技术和材料，产品为国内主机厂、专业生产厂和国外的各型履带式工程机械配套并远销欧美等数十个国家。产品已通过ISO9001:2000国际质量体系认证及欧盟环保认证并由天津工程机械研究所和天津市产品质量监督检验所定期检测。TanninHangQingMachineryCompanyLimitedwasestablishedinthe80lsdedicatedtotheproductionoffloatingseals.Itmainlyproducesfloatingoilsealsofvarioussizesforbulldozers,excavators,agriculturalmachinery,miningmachinery,collierymachinery,roadmachinery,constructionmachineryandautomobiles.Itsproductionscale,typesofproducts,productionvolume,modelsandmarketshareallranktheforemostinthecountry.Atpresentthecompanyhasatotalstaffofmorethan300personsamongthemtherearemanyFirstClassspecializedpersonnelbeingdedicatedtotheresearchanddevelopmentofthefloatingseals,andtheyhavegatheredalotexperiencesinthisarea.Thefactoryhasmorethan100machinesandequipmentbeingusedforacompleteproductionchainincludingfoundry,lathe-turningandgrindingetc.Theannualproductioncapacityisabout4millionpiecesoffloatingsealswiththeproductrangefromφ50mmtoφ750mm,Thefactoryoccupiesanareaof12000m,inwhich8000marebuildingarea.ThefloatingsealsareproducedbyadoptingadvancedtechnologyandmaterialsfromJapan,USAandGermanyandtheproductsaresuppliedtoOEMsandspecializedFactoryinChinaandworldwideforvariousCrawlerTypeConstructionMachineries,andalsosuppliedtothecustomersinmanycountriesinEuropeandAmerica.TheproductshavebeenapprovedwiththeInternationalQualitySystemCertificationofISO9001and2000,andtheEuropeanEnvironmentalCertification.TheproductsareinspectedperiodicallybyTanninResearchInstituteofConstructionMachineryandTanninProductQualitySupervisionandinspectioninstitute.