{"product_id":"contracor-venturi-sandstrahlduse-stc-wolframkarbid-kurz-dusenbohrung-5-bis-12-5-mm","title":"STC Venturi blast nozzle, tungsten carbide, short, 50 mm coarse thread, nozzle bore 5–12.5 mm","description":"\u003cstyle\u003e.blast-product h5{font-size:18px;line-height:1.3;margin:0 0 12px}.blast-product hr{margin:16px 0}.blast-product table{width:100%;border-collapse:separate;border-spacing:0}.blast-product th,.blast-product td{padding:10px;text-align:center}.blast-product th{background:#f3f3f3;border-bottom:1px solid #d9d9d9}\u003c\/style\u003e\u003cdiv class=\"blast-product\"\u003e\n\u003ch5\u003eContracor STC – Short tungsten carbide Venturi blast nozzle with rubber sleeve\u003c\/h5\u003e\n\u003cp\u003eThe \u003cstrong\u003eContracor STC\u003c\/strong\u003e is a compact, 80 mm long Venturi blast nozzle for professional pressure blasting applications. The tungsten carbide nozzle insert is robust and durable, while the rubber sleeve protects the nozzle and ensures a secure grip.\u003c\/p\u003e\n\u003cp\u003eWith \u003cstrong\u003ea 32 mm inlet\u003c\/strong\u003e, \u003cstrong\u003e50 mm coarse thread\u003c\/strong\u003e, and six bore sizes ranging from 5 to 12.5 mm, the STC can be adapted to different compressor power ratings and blasting applications.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch5\u003eBenefits\u003c\/h5\u003e\n\u003cp\u003e✅ Robust tungsten carbide nozzle insert\u003cbr\u003e✅ Short 80-mm design\u003cbr\u003e✅ Rubber sleeve for protection and easy handling\u003cbr\u003e✅ 32 mm inlet\u003cbr\u003e✅ 50 mm coarse thread\u003cbr\u003e✅ Six bore sizes ranging from 5 to 12.5 mm\u003cbr\u003e✅ For confined-space and general pressure blasting applications\u003c\/p\u003e\n\u003chr\u003e\n\u003ch5\u003eTechnical Specifications\u003c\/h5\u003e\n\u003cdiv style=\"overflow-x:auto;border:1px solid #d9d9d9;border-radius:10px\"\u003e\u003ctable style=\"min-width:680px\"\u003e\n\u003cthead\u003e\u003ctr\u003e\u003cth\u003eFeature\u003c\/th\u003e\u003cth\u003eValue\u003c\/th\u003e\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\u003ctd\u003eManufacturer\u003c\/td\u003e\u003ctd\u003eContracor\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr style=\"background:#fafafa\"\u003e\u003ctd\u003eSeries\u003c\/td\u003e\u003ctd\u003eSTC\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eDesign\u003c\/td\u003e\u003ctd\u003eShort Venturi blast nozzle\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr style=\"background:#fafafa\"\u003e\u003ctd\u003eNozzle insert\u003c\/td\u003e\u003ctd\u003eTungsten carbide\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eSleeve\u003c\/td\u003e\u003ctd\u003eRubber\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr style=\"background:#fafafa\"\u003e\u003ctd\u003eLength\u003c\/td\u003e\u003ctd\u003e80 mm\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eInlet\u003c\/td\u003e\u003ctd\u003e32 mm\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr style=\"background:#fafafa\"\u003e\u003ctd\u003eConnection\u003c\/td\u003e\u003ctd\u003e50 mm coarse thread\u003c\/td\u003e\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/div\u003e\n\u003chr\u003e\n\u003ch5\u003eVariants\u003c\/h5\u003e\n\u003cdiv style=\"overflow-x:auto;border:1px solid #d9d9d9;border-radius:10px\"\u003e\u003ctable style=\"min-width:680px\"\u003e\n\u003cthead\u003e\u003ctr\u003e\u003cth style=\"position:sticky;left:0;background:#f3f3f3\"\u003eBore\u003c\/th\u003e\u003cth\u003eLength\u003c\/th\u003e\u003cth\u003eSKU\u003c\/th\u003e\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\u003ctd style=\"position:sticky;left:0;background:#fff\"\u003e5 mm\u003c\/td\u003e\u003ctd\u003e80 mm\u003c\/td\u003e\u003ctd\u003e10112570\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr style=\"background:#fafafa\"\u003e\u003ctd style=\"position:sticky;left:0;background:#fafafa\"\u003e6.5 mm\u003c\/td\u003e\u003ctd\u003e80 mm\u003c\/td\u003e\u003ctd\u003e10112571\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd style=\"position:sticky;left:0;background:#fff\"\u003e8 mm\u003c\/td\u003e\u003ctd\u003e80 mm\u003c\/td\u003e\u003ctd\u003e10112572\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr style=\"background:#fafafa\"\u003e\u003ctd style=\"position:sticky;left:0;background:#fafafa\"\u003e9.5 mm\u003c\/td\u003e\u003ctd\u003e80 mm\u003c\/td\u003e\u003ctd\u003e10112573\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd style=\"position:sticky;left:0;background:#fff\"\u003e11 mm\u003c\/td\u003e\u003ctd\u003e80 mm\u003c\/td\u003e\u003ctd\u003e10112574\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr style=\"background:#fafafa\"\u003e\u003ctd style=\"position:sticky;left:0;background:#fafafa\"\u003e12.5 mm\u003c\/td\u003e\u003ctd\u003e80 mm\u003c\/td\u003e\u003ctd\u003e10112575\u003c\/td\u003e\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/div\u003e\n\u003chr\u003e\n\u003ch5\u003eCalculate compressed air requirements, abrasive consumption, and compressor power ratings\u003c\/h5\u003e\n\u003cp\u003eAll STC bore sizes are pre-programmed in the blast nozzle calculator. As nozzle wear increases, so does the air demand. A reserve of 30 or 50% helps to compensate for this increased demand and pressure losses.\u003c\/p\u003e\n\u003cdiv id=\"blast-nozzle-calculator\" style=\"width:100%;max-width:100%;font-family:system-ui,-apple-system,Segoe UI,Roboto,Arial\"\u003e\n\u003cstyle\u003e#blast-nozzle-calculator *{box-sizing:border-box}#blast-nozzle-calculator .calc-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr) minmax(0,1fr) auto;gap:12px;align-items:end}#blast-nozzle-calculator label{display:block;font-size:14px;min-width:0}#blast-nozzle-calculator select{width:100%;height:40px;padding:0 10px;border:1px solid #ccc;border-radius:8px;background:#fff;margin-top:6px}#blast-nozzle-calculator .calc-actions{display:flex;gap:10px}#blast-nozzle-calculator button{height:40px;padding:0 14px;border-radius:10px;white-space:nowrap}@media(max-width:1280px){#blast-nozzle-calculator .calc-grid{grid-template-columns:1fr}#blast-nozzle-calculator .calc-actions{display:grid;grid-template-columns:1fr;gap:10px}#blast-nozzle-calculator button{width:100%}}\u003c\/style\u003e\n\u003cdiv style=\"background:#f5f5f7;border-radius:10px;padding:12px 14px;font-size:14px;margin-bottom:12px\"\u003e\u003cp style=\"margin:0 0 6px\"\u003eSelect the nozzle bore size, working pressure, and desired power reserve. The calculator displays the compressed air requirement, the recommended compressor free air delivery, the approximate abrasive consumption, and a guideline for compressor motor power.\u003c\/p\u003e\u003cp style=\"margin:0\"\u003e\u003cstrong\u003e💡 Power reserve:\u003c\/strong\u003e This accounts for increased air demand due to nozzle wear as well as typical pressure losses. The reserve does not apply to abrasive consumption.\u003c\/p\u003e\u003c\/div\u003e\n\u003cdiv class=\"calc-grid\"\u003e\u003clabel\u003eNozzle bore\u003cselect id=\"bn-diameter\"\u003e\u003coption value=\"\" selected disabled\u003ePlease select\u003c\/option\u003e\u003coption value=\"3.5\"\u003e3.5 mm\u003c\/option\u003e\u003coption value=\"5\"\u003e5 mm\u003c\/option\u003e\u003coption value=\"6.5\"\u003e6.5 mm\u003c\/option\u003e\u003coption value=\"8\"\u003e8 mm\u003c\/option\u003e\u003coption value=\"9.5\"\u003e9.5 mm\u003c\/option\u003e\u003coption value=\"11\"\u003e11 mm\u003c\/option\u003e\u003coption value=\"12.5\"\u003e12.5 mm\u003c\/option\u003e\u003coption value=\"16\"\u003e16 mm\u003c\/option\u003e\u003coption value=\"19\"\u003e19 mm\u003c\/option\u003e\u003c\/select\u003e\u003c\/label\u003e\u003clabel\u003eWorking pressure at the nozzle\u003cselect id=\"bn-pressure\"\u003e\u003coption value=\"\" selected disabled\u003ePlease select\u003c\/option\u003e\u003coption value=\"1\"\u003e1 bar\u003c\/option\u003e\u003coption value=\"2\"\u003e2 bar\u003c\/option\u003e\u003coption value=\"3\"\u003e3 bar\u003c\/option\u003e\u003coption value=\"4\"\u003e4 bar\u003c\/option\u003e\u003coption value=\"5\"\u003e5 bar\u003c\/option\u003e\u003coption value=\"6\"\u003e6 bar\u003c\/option\u003e\u003coption value=\"7\"\u003e7 bar\u003c\/option\u003e\u003coption value=\"8\"\u003e8 bar\u003c\/option\u003e\u003coption value=\"9\"\u003e9 bar\u003c\/option\u003e\u003coption value=\"10\"\u003e10 bar\u003c\/option\u003e\u003c\/select\u003e\u003c\/label\u003e\u003clabel\u003ePower reserve\u003cselect id=\"bn-reserve\"\u003e\u003coption value=\"\" selected disabled\u003ePlease select\u003c\/option\u003e\u003coption value=\"0\"\u003e0 %\u003c\/option\u003e\u003coption value=\"0.3\"\u003e30 %\u003c\/option\u003e\u003coption value=\"0.5\"\u003e50 %\u003c\/option\u003e\u003c\/select\u003e\u003c\/label\u003e\u003cdiv class=\"calc-actions\"\u003e\u003cbutton id=\"bn-calc\" type=\"button\" style=\"background:#222;color:#fff;border:1px solid #222\"\u003eCalculate\u003c\/button\u003e\u003cbutton id=\"bn-reset\" type=\"button\" style=\"background:#fff;border:1px solid #ccc\"\u003eReset\u003c\/button\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003chr style=\"border:none;border-top:1px solid #eee;margin:12px 0\"\u003e\u003cdiv style=\"background:#f8f8fa;border-radius:10px;padding:12px 14px\"\u003e\u003cstrong\u003eResult:\u003c\/strong\u003e\u003cdiv id=\"bn-result-line\" style=\"margin-top:8px;line-height:1.7\"\u003e—\u003c\/div\u003e\u003c\/div\u003e\u003cp style=\"font-size:12px;color:#555\"\u003eTechnical guidelines. Abrasive consumption and kW ratings are approximations; the effective flow rate at operating pressure is the determining factor for compressor selection.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cscript\u003e(function(){var a={\"3.5\":[.1,.2,.3,.35,.4,.5,.6,.65,.7,.8],\"5\":[.25,.5,.65,.8,.95,1.1,1.25,1.4,1.55,1.7],\"6.5\":[.4,.8,1.15,1.5,1.8,2.05,2.3,2.55,2.8,3.05],\"8\":[.65,1.3,1.9,2.45,2.95,3.4,3.9,4.35,4.85,5.3],\"9.5\":[.95,1.8,2.65,3.4,4.15,4.85,5.55,6.2,6.9,7.55],\"11\":[1.35,2.55,3.6,4.6,5.55,6.45,7.35,8.2,9.1,10],\"12.5\":[1.9,3.5,4.85,6.05,7.25,8.4,9.55,10.65,11.75,12.9],\"16\":[3.11,5.73,7.95,9.91,11.88,13.76,15.65,17.45,19.25,21.14],\"19\":[4.39,8.09,11.21,13.98,16.75,19.41,22.06,24.61,27.15,29.8]};function f(n,d){return n.toLocaleString('en-US',{minimumFractionDigits:d,maximumFractionDigits:d})}document.getElementById('bn-calc').onclick=function(){var d=document.getElementById('bn-diameter').value,p=document.getElementById('bn-pressure').value,r=document.getElementById('bn-reserve').value,o=document.getElementById('bn-result-line');if(!d||!p||r===''){o.innerHTML='\u003cstrong\u003ePlease select nozzle bore, working pressure, and power reserve.\u003c\/strong\u003e';return}var b=a[d][+p-1],q=b*(1+ +r);o.innerHTML='\u003cstrong\u003eNozzle air requirement:\u003c\/strong\u003e '+f(b,2)+' m³\/min\u003cbr\u003e\u003cstrong\u003eRecommended compressor free air delivery incl. reserve:\u003c\/strong\u003e '+f(q,2)+' m³\/min\u003cbr\u003e\u003cstrong\u003eApproximate abrasive consumption:\u003c\/strong\u003e approx. '+f(b*96,0)+' kg\/h\u003cbr\u003e\u003cstrong\u003eIndicative compressor motor power:\u003c\/strong\u003e approx. '+f(q*6,0)+' kW'};document.getElementById('bn-reset').onclick=function(){document.getElementById('bn-diameter').selectedIndex=0;document.getElementById('bn-pressure').selectedIndex=0;document.getElementById('bn-reserve').selectedIndex=0;document.getElementById('bn-result-line').innerHTML='—'}})();\u003c\/script\u003e\u003chr\u003e\n\u003ch5\u003eHow It Works and Selecting the Nozzle Size\u003c\/h5\u003e\u003cp\u003e✔ Short Venturi design for easy handling\u003cbr\u003e✔ Smaller orifices reduce air consumption\u003cbr\u003e✔ Larger bore sizes increase blasting power and surface coverage rates when used with a suitable compressor\u003cbr\u003e✔ 32-mm inlet supports a smooth, efficient flow\u003c\/p\u003e\u003chr\u003e\n\u003ch5\u003eRecommended Abrasive Media\u003c\/h5\u003e\u003cp\u003e✔ Corundum \/ aluminum oxide\u003cbr\u003e✔ Garnet\u003cbr\u003e✔ Slag\u003cbr\u003e✔ Glass beads\u003cbr\u003e✔ Steel grit when used with a suitable system\u003cbr\u003e✔ Additional dry abrasive media of suitable grit size\u003c\/p\u003e\u003chr\u003e\n\u003ch5\u003eApplications\u003c\/h5\u003e\u003cp\u003e✔ Rust removal and paint stripping\u003cbr\u003e✔ Surface preparation\u003cbr\u003e✔ Workshop, construction site, and maintenance\u003cbr\u003e✔ Steel and plant engineering\u003cbr\u003e✔ Confined work areas\u003c\/p\u003e\u003chr\u003e\n\u003ch5\u003eWear, Inspection, and Operation\u003c\/h5\u003e\u003cp\u003eCheck the nozzle bore regularly. As wear increases, air consumption and compressor load rise. Inspect the rubber sleeve and threads for damage, and secure the nozzle holder firmly.\u003c\/p\u003e\u003chr\u003e\n\u003ch5\u003eFAQ\u003c\/h5\u003e\u003cp\u003e\u003cstrong\u003eHow long is the STC?\u003c\/strong\u003e\u003cbr\u003e80 mm.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhich connection?\u003c\/strong\u003e\u003cbr\u003e50 mm coarse thread with a 32 mm inlet.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhich bore sizes?\u003c\/strong\u003e\u003cbr\u003e5, 6.5, 8, 9.5, 11, and 12.5 mm.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhen is a short nozzle recommended?\u003c\/strong\u003e\u003cbr\u003eWhen compact dimensions and maneuverability are more important than the maximum surface coverage rate of a long Venturi nozzle.\u003c\/p\u003e\u003chr\u003e\n\u003ch5\u003eConclusion\u003c\/h5\u003e\u003cp\u003eThe \u003cstrong\u003eContracor STC\u003c\/strong\u003e is a compact and robust tungsten carbide Venturi blast nozzle with a non-slip rubber sleeve for professional pressure blasting applications. With six bore sizes, it covers a wide range of performance requirements.\u003c\/p\u003e\u003c\/div\u003e","brand":"Contracor","offers":[{"title":"5 x 80","offer_id":49019468579163,"sku":"10112570","price":64.26,"currency_code":"EUR","in_stock":true},{"title":"6.5 x 80","offer_id":49019468611931,"sku":"10112571","price":64.26,"currency_code":"EUR","in_stock":true},{"title":"8 x 80","offer_id":49019468644699,"sku":"10112572","price":64.26,"currency_code":"EUR","in_stock":true},{"title":"9.5 x 80","offer_id":49019468677467,"sku":"10112573","price":64.26,"currency_code":"EUR","in_stock":true},{"title":"11 x 80","offer_id":49019468710235,"sku":"10112574","price":64.26,"currency_code":"EUR","in_stock":true},{"title":"12.5 x 80","offer_id":49019468743003,"sku":"10112575","price":64.26,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0876\/8526\/7803\/files\/venturi-sandstrahlduese-wolframkarbid-stc-kurz-contracor.jpg?v=1726394976","url":"https:\/\/strahltechnik-express.de\/en-es\/products\/contracor-venturi-sandstrahlduse-stc-wolframkarbid-kurz-dusenbohrung-5-bis-12-5-mm","provider":"ABS Strahltechnik","version":"1.0","type":"link"}