MST Flex­duct

Suction Hoses & Vacuum Lines
for Industrial Applications

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Suc­tion hoses and vacu­um-resistant line sys­tems are func­tion­al com­pon­ents who­se fail­ure has a direct impact on machi­ne avai­la­bi­li­ty and pro­cess relia­bi­li­ty. They must per­ma­nent­ly absorb vacu­um loads down to -0.9 bar wit­hout col­lapsing, with­stand abra­si­ve par­tic­les and bulk mate­ri­als wit­hout wea­ring through, and remain fle­xi­ble and tight even at low tem­pe­ra­tures or in con­ti­nuous operation.

As a spe­cia­li­zed suc­tion hose manu­fac­tu­rer for indus­try and OEM, MST-Flex­duct deve­lo­ps spi­ral-rein­forced elas­to­mer-tex­ti­le sys­tems desi­gned pre­cis­e­ly for the­se requi­re­ments. Our suc­tion hoses are used in extra­c­tion sys­tems, indus­tri­al vacu­um sys­tems, dedus­ting sys­tems, bulk-mate­ri­al con­vey­ing and mate­ri­al-hand­ling sys­tems — whe­re­ver vacu­um sta­bi­li­ty, abra­si­on resis­tance and repro­du­ci­b­le series qua­li­ty are decisive.

Collapse-resistant under vacuum down to -0.9 bar

Spi­ral-rein­forced con­s­truc­tion keeps the flow cross-sec­tion sta­ble under con­ti­nuous vacuum

Abrasion-resistant inner layer for solids and dust transport

Rein­forced inner lay­er for par­tic­le-car­ry­ing media with a high degree of abrasion

Antistatic to EN ISO 8031 for dust-carrying systems

Dis­si­pa­ti­ve ver­si­ons for com­bus­ti­ble dusts and ATEX-com­pli­ant areas

Pressure- and vacuum-resistant for bidirectional operating cycles

Desi­gned for vacu­um ope­ra­ti­on and pres­su­re-flus­hing cycles wit­hout hose replacement

Cold-bendable down to -40 °C for outdoor systems and year-round operation

Per­ma­nent­ly fle­xi­ble at low tem­pe­ra­tures, wit­hout emb­ritt­le­ment or cracking

Series quality with batch-wise vacuum testing

Every batch tes­ted for col­lap­se resis­tance, dimen­sio­nal accu­ra­cy and wall-thic­k­ness uniformity

Requirements for suction & vacuum hoses

Indus­tri­al suc­tion and vacu­um hoses have to deli­ver con­sider­a­b­ly more than clas­sic fle­xi­ble lines. In addi­ti­on to high fle­xi­bi­li­ty, vacu­um resis­tance in par­ti­cu­lar is decisi­ve: the hose must not deform, col­lap­se or lose mate­ri­al strength when vacu­um is applied.

Added to this are chan­ging mecha­ni­cal loads from fric­tion, abra­si­on, move­ment and vibra­ti­on. Many appli­ca­ti­ons also requi­re media resis­tance to dusts, bulk mate­ri­als, hot air flows or aggres­si­ve par­tic­les, as well as, in safe­ty-rele­vant are­as, an anti­sta­tic ver­si­on to EN ISO 8031 or ATEX con­for­mi­ty to Direc­ti­ve 2014/34/EU.

An indus­tri­al suc­tion hose is the­r­e­fo­re not a con­su­ma­ble, but a func­tion­al com­po­nent who­se qua­li­ty has a direct influence on pro­duc­tion relia­bi­li­ty and plant availability.

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Talk to our experts

Tog­e­ther we deve­lop the right indus­tri­al hose for your appli­ca­ti­on. We advi­se you on a tech­ni­cal­ly sound and pro­ject-ori­en­ted basis.

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Materials & spiral reinforcement

For vacu­um-sta­ble line sys­tems, MST-Flex­duct reli­es on rein­forced elas­to­mer-tex­ti­le con­s­truc­tions deve­lo­ped spe­ci­fi­cal­ly for indus­tri­al vacu­um and abra­si­on requi­re­ments. Through the pre­cise coor­di­na­ti­on of spi­ral type, num­ber of lay­ers and mate­ri­al com­pound, hoses are crea­ted that with­stand high loads while remai­ning dura­ble and reliable.

The layer structure combines:

  • Robust elas­to­mers (NBR, EPDM or spe­cial com­pounds) for fle­xi­bi­li­ty and media resistance
  • Tech­ni­cal fabric lay­ers to sta­bi­li­ze the wall struc­tu­re and absorb pressure
  • Inte­gra­ted spi­ral ele­ments made of steel wire or hard pla­s­tic that pre­vent col­lap­se under vacuum
  • Abra­si­on-resistant inner lay­er for media with par­tic­les, bulk mate­ri­al or high fric­tion influences
  • Anti­sta­tic con­duc­ti­ve lay­ers on request for com­bus­ti­ble-dust-car­ry­ing and ATEX-rele­vant applications

Industrial Use Cases

MST-Flex­duct vacu­um and suc­tion hoses are used in a wide varie­ty of indus­tri­al appli­ca­ti­ons. Espe­ci­al­ly in sen­si­ti­ve pro­duc­tion are­as, hoses must func­tion relia­bly — fail­ures here lead direct­ly to stop­pa­ges or qua­li­ty risks. Thanks to their high sta­bi­li­ty and abra­si­on resis­tance, the sys­tems are sui­ta­ble both for con­ti­nuous load cases and for dyna­mic appli­ca­ti­ons with fre­quent chan­ges of movement:

  • Extra­c­tion sys­tems in pro­duc­tion are­as (chips, dusts, particles)
  • Dedus­ting sys­tems in wood, pla­s­tics and metal processing
  • Vacu­um trans­port of bulk mate­ri­als in the food, phar­maceu­ti­cal and che­mi­cal industries
  • Pro­cess-air sys­tems with alter­na­ting pres­su­re and vacu­um phases
  • Vacu­um hand­ling sys­tems for lif­ting ope­ra­ti­ons in logi­stics and manufacturing
  • Indus­tri­al suc­tion-con­vey­ing sys­tems for gra­nu­la­tes, pow­ders and grains
  • Extra­c­tion of flue ash and hot pro­cess emis­si­ons with tem­pe­ra­tu­re resis­tance up to +150 °C

Series production

As an OEM-ori­en­ted manu­fac­tu­rer, MST-Flex­duct sup­pli­es suc­tion hoses and vacu­um sys­tems that are manu­fac­tu­red sta­b­ly and repro­du­ci­b­ly in series. Every batch meets iden­ti­cal tole­rance spe­ci­fi­ca­ti­ons and per­for­mance values, so that hoses can be used in exis­ting sys­tems wit­hout pro­blems or repla­ced during ongo­ing operation.

MST-Flex­duct sup­ports cus­to­mers in the deve­lo­p­ment of vari­ants, hand­les the pro­to­ty­pe pha­se, and accom­pa­nies the series appr­oval with veri­fia­ble evi­dence. Pro­duc­tion at seve­ral sites ensu­res a relia­ble sup­p­ly and low sup­p­ly-chain risks even for high call-off quantities.

Quality & test procedures

Sin­ce suc­tion and vacu­um hoses are direct­ly con­nec­ted to pro­duc­tion pro­ces­ses, qua­li­ty assu­rance is a decisi­ve fac­tor. Depen­ding on the appli­ca­ti­on, MST-Flex­duct tests hoses for:

Vacu­um resis­tance: Col­lap­se test under a defi­ned vacu­um pro­fi­le down to -0.9 bar

Dimen­sio­nal accu­ra­cy: Inner and outer dia­me­ter as well as wall-thic­k­ness uni­for­mi­ty over the enti­re hose length

Abra­si­on beha­viour of the inner lay­er to DIN ISO 4649 (grin­ding-wheel method)

Tem­pe­ra­tu­re and age­ing resis­tance to DIN 53508 / ISO 188

Tight­ness and struc­tu­ral inte­gri­ty under alter­na­ting load

Dis­si­pa­ti­on resis­tance of anti­sta­tic ver­si­ons to EN ISO 8031

Appli­ca­ti­on-ori­en­ted tests under load-chan­ge stres­ses and ben­ding processes

For OEM cus­to­mers, docu­men­ted inspec­tion reports, qua­li­ty evi­dence and series appr­ovals are addi­tio­nal­ly available. This enables trans­pa­rent inte­gra­ti­on into the cus­to­mer’s exis­ting qua­li­ty structure.

Why MST-Flexduct as a suction hose manufacturer?

Suc­tion and vacu­um hoses are cen­tral func­tion­al com­pon­ents. A sin­gle fail­ure through col­lap­se, wea­ring through or emb­ritt­le­ment can cau­se machi­ne down­ti­me, pro­duc­tion inter­rup­ti­ons or qua­li­ty defects. A suc­tion hose that has to be repla­ced after a few weeks is not an eco­no­mic­al solution.

MST-Flex­duct com­bi­nes mate­ri­als exper­ti­se, tech­ni­cal design and pre­cise series pro­duc­tion to deve­lop suc­tion hoses that func­tion relia­bly even under high load. Spi­ral type and lay­er struc­tu­re are matched to the spe­ci­fic vacu­um values and media loads of the respec­ti­ve appli­ca­ti­on. The result is line sys­tems with a signi­fi­cant­ly lon­ger ser­vice life and lower main­ten­an­ce effort than stan­dard products.

Your advantages at a glance

  • Vacu­um-sta­ble suc­tion hoses with spi­ral rein­force­ment against col­lap­se down to -0.9 bar
  • Abra­si­on-resistant inner lay­er for bulk mate­ri­al, dusts and par­tic­le-car­ry­ing media
  • Anti­sta­tic ver­si­ons to EN ISO 8031, ATEX-com­pli­ant vari­ants to Direc­ti­ve 2014/34/EU
  • Cold-ben­ding capa­bi­li­ty down to -40 °C for out­door sys­tems and year-round out­door operation
  • Com­bi­ned pres­su­re and vacu­um resis­tance for bidi­rec­tion­al ope­ra­ting cycles
  • Repro­du­ci­b­le series qua­li­ty for OEM with batch-wise vacu­um testing
  • Com­ple­te inspec­tion docu­men­ta­ti­on for series appr­ovals and inco­ming-inspec­tion processes

MST Flex­duct

Specialist for Suction Hoses & Vacuum Lines for industrial applications.

Do you need vacu­um-sta­ble suc­tion hoses or dura­ble line sys­tems for mecha­ni­cal engi­nee­ring, plant engi­nee­ring or mate­ri­al hand­ling?
MST-Flex­duct sup­ports you from tech­ni­cal design through to series appr­oval.
Cont­act us for a tech­ni­cal con­sul­ta­ti­on or send your requi­re­ments direct­ly to our engi­nee­ring team.

Spe­cia­li­zed manu­fac­tu­rer of indus­tri­al suc­tion hoses. Anti­sta­tic and ATEX-com­pli­ant ver­si­ons on request. Inspec­tion reports and series appr­ovals as a stan­dard part of the deli­very documentation.

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Together we will find the right solution for your requirements. Contact us now and let's talk about your project.

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