STM公司成立于1976年，總部位于意大利的博洛尼亞 (Bologna) ，如今STM公司已經發展成為一個大型集團公司，在機械傳動領域占據著重要的位置，其設計和生產的減速機、電機及機械和電子變速器在全世界范圍內享有盛譽。在意大利名列三甲！

 STM集團由以下三個公司組成：STM S.p.a., GSM S.p.a., 以及STM Drive S.r.l.。其中GSM S.p.a.生產的是中型及大型功率的減速機和減速電機，極大地擴大了STM的產品供應范圍，其卓越的生產能力及產品質量使STM在國際市場上占有著重要地位。

STM和GSM制造了最廣泛規格的齒輪箱和減速電機，STM和GSM根據用戶的特殊要求，在每一個重機械和輕機械領域都提供了最前沿的技術解決方案。STM&GSM是出色的聯盟，使客戶不僅信任高科技的產品，而且也使客戶信任自己的產品知識和適當的市場策略。STM&GSM的結合是強大的，因此，從今天起STM&GSM的結合也將意味著使客戶完全滿意。

GSM型號例舉：齒輪減速機RX02/814/ABU/58.1/ECE/US/M4-DT US=SPECIAL OUTPUT SHAFT * 110*200MM

STM型號例舉：型號:

RI28FL,RI40FL,RI50FL,RI63FL,RI70FL,RI85FL,RI11FLMRI130FL,RI150FL,

RI180FL,

RI28D,RI40DMRI50D,RI63D,RI70D,RI85D,RI110D,RI130D,RI150D,RI180D,

RMI28FL,RMI40FL,RMI150FL,RMI63FL,RMI70FL,RMI85FL,RMI110FL,RMI130FL,

RMI150FL,RMI180FL

RI28P,RMI28P,RI40PP,RI70PP,RI85PP,RI110P,RI130P,RI150P,RI180P,RMI40PP,

RMI70PP,RMI85P,RMI110P,RMI130P,RMI150P,RMI180P

RI28S,RI40SMRI50SMRI63S,RI70S,RI85S,RI110S,RI130S,RI150S,RI180S

RMI128S,RMI40S,RMI50S,RMI63S,RMI70S,RMI85SMRMI110S,RMI130S,RMI150S,

RMI180S

RMI28I,RMI40I,RMI50I,RMI63I,RMI70I,RMI85I,RMI110I,RMI130I,RMI150I,

RMI180I

RMI28D,RMI40D,RMI50D,RMI63D,RMI70D,RMI85D,RMI110D,RMI130D,RMI150D,

RMI180D

CRI28S,CRI40S,CRI50S,CRI63S,CRI70S,CRI85S,CRI110S,CRI130S,CRI150S,

CRI180S

CRMI28S,CRMI40S,RMI50S,CRMI63S,CRMI70S,CRMI110S,CRMI130S,CRMI150S,

CRMI180S

CRI28I,CRI140I,CRI50I,CRI63I,CRI85I,CRI110I,CRI130I,CRI150I,CRI180I

CRMI28I,CRMI40I,CRMI50I,CRMI63I,CRMI70I,CRMI85I,CRMI110I,CRMI130I,

CRMI150I,CRMI180I

CRI28D,CRI40D,CRI50D,CRI63D,CRI70D,CRI85D,CRI110D,CRI130D,CRI150D,

CIR180D

CRMI28DMCRMI40D,CRMI50D,CRMI63D,CRMI70D,CRMI85D,CRMI110D,CRMI130D,

CRMI150DMCRMI180D

CRI28A,CRI40A,CRI50A,CRI63A,CRI70A,CRI85A,CRI110A,CRI130A,CRI150A,

CRI180A

CRI28P,CRI40P,CRI50P,CRI63P,CRI70P,CRI85P,CRI110P,CRI130P,CRI150P,

CRI180P