Sign In |Help & Support
ALL SECTORS
  • ALL SECTORS
  • GB(National Standard)
  • CB(Shipping)
  • CECS(Engineering Construction)
  • CJ(Urban Construction)
  • CY(News and Publication)
  • DB(Provincial Standard)
  • DL(Electricity & Power)
  • DZ(Geology & Mineralogy)
  • FZ(Spinning & Textile)
  • GA(Public Security)
  • HB(Aviation)
  • HG(Chemical Industry)
  • HJ(Environmental Protection)
  • JB(Machinery)
  • JC(Building Materials)
  • JG(Building & Construction)
  • JJ(Metering)
  • JT(Highway & Transportation)
  • LY(Forestry)
  • MT(Coal)
  • NB(Energy)
  • NY(Agriculture)
  • QB(Light Industry)
  • QC(Automobile & Vehicle)
  • QJ(Aerospace)
  • SH(Petrochemical)
  • SJ(Electronics)
  • SL(Water Resources)
  • SN(Commodity Inspection)
  • SY(Oil & Gas)
  • TB(Railway & Train)
  • YB(Ferrous Metallurgy)
  • YC(Tobacco)
  • YD(Telecommunication)
  • YY(Medical Device)
Database: 365,228(8 Aug 2026)
boom-type roadheader mechanism scopethis standard cantilever tunnel boring machine tunnel boring machine operating mechanis reducer ip video fm sound broadcasting protective boxes
MT/T 1139-2011 in English

MT/T 1139-2011 in English

VALID

Boom-type Roadheader - Reducing Device of Cutting Mechanism

  • Issued on:2011-04-12
  • Implemented on:2011-09-01
  • File Format:PDF
  • Delivery:Via email within 1~3 business days
Price(USD): $210.00
$204.00


Scope

This standard specifies the scope, normative reference documents, requirements, test methods, inspection rules, marking, packaging, transportation and storage of the cantilever tunnel boring machine cutting mechanis reducer. This standard is applicable to the cutting mechanis reducer of cantilever tunnel boring machines operating in gas, coal dust or other explosive mixed gases. It is also applicable to the cutting mechanis reducer of this type of tunnel boring machine operating in other engineering tunnels.

Sample only — not a preview of MT/T 1139-2011
Page: 1 / 0
100%

Loading PDF document...

Error loading PDF. Please make sure the file is valid and try again.

We also recommend