{"product_id":"new-ewm-bruckengleichrichter-mb-380-335-2-si-s-full-wave-brake-rectifier","title":"EWM Brückengleichrichter MB 380\/335-2 SI-S Full Wave Brake Rectifier","description":"\u003cdiv class=\"koeed-container\"\u003e\n    \u003ch2\u003eEngineer's Quick Brief\u003c\/h2\u003e\n    \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eUniversal Compatibility:\u003c\/strong\u003e Engineered with a versatile manifold and multi-thread adapter set, ensuring seamless connection to the N2 charging ports of \u003cstrong\u003eSoosan (SB series)\u003c\/strong\u003e, \u003cstrong\u003eStanley (MB series)\u003c\/strong\u003e, Furukawa, and other major hydraulic breaker brands.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eRestores Impact Kinetic Energy:\u003c\/strong\u003e Accurately measuring and refilling the backhead\/accumulator nitrogen cushion is critical. Correct N2 pressure maximizes the piston's downward strike force and protects the hydraulic pump from destructive pressure spikes.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eCritical Safety Notice:\u003c\/strong\u003e \u003cstrong\u003eUSE ONLY PURE NITROGEN (N2) GAS.\u003c\/strong\u003e Never use compressed air or oxygen. The diesel effect caused by compressed air mixing with atomized hydraulic oil under extreme pressure can cause a catastrophic and lethal explosion.\u003c\/li\u003e\n    \u003c\/ul\u003e\n\n    \u003ch2\u003eSEO Introduction\u003c\/h2\u003e\n    \u003cp\u003eThe \u003cstrong\u003eNitrogen (N2) Gas Charging and Testing Kit\u003c\/strong\u003e is an indispensable maintenance tool for heavy equipment mechanics and excavator operators utilizing hydraulic breaker attachments. Specifically configured to service industry-leading brands like \u003cstrong\u003eSoosan\u003c\/strong\u003e and \u003cstrong\u003eStanley MB series\u003c\/strong\u003e hammers, this kit allows technicians to safely check, relieve, or refill the nitrogen gas pressure in the breaker's backhead or accumulator. Nitrogen acts as a highly compressible gas spring; when the hydraulic oil lifts the piston, it compresses the nitrogen. The subsequent expansion of this gas drives the piston downward with massive kinetic energy. Operating a breaker with depleted nitrogen results in weak impact power and severe hydraulic pulsation that can destroy the carrier machine's hydraulic pumps. Featuring a precision, shock-resistant pressure gauge, a heavy-duty bleeder valve, and high-pressure hoses, this kit ensures your demolition equipment is charged to precise OEM specifications.\u003c\/p\u003e\n\n    \u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n    \u003cdiv style=\"overflow-x: auto;\"\u003e\n        \u003ctable class=\"koeed-table\"\u003e\n            \u003cthead\u003e\n                \u003ctr\u003e\n                    \u003cth\u003eSpecification Category\u003c\/th\u003e\n                    \u003cth\u003eTechnical Details\u003c\/th\u003e\n                \u003c\/tr\u003e\n            \u003c\/thead\u003e\n            \u003ctbody\u003e\n                \u003ctr\u003e\n                    \u003ctd\u003e\u003cstrong\u003eProduct Type\u003c\/strong\u003e\u003c\/td\u003e\n                    \u003ctd\u003eHydraulic Breaker N2 Gas Charging \/ Testing Kit\u003c\/td\u003e\n                \u003c\/tr\u003e\n                \u003ctr\u003e\n                    \u003ctd\u003e\u003cstrong\u003eCompatible Brands\u003c\/strong\u003e\u003c\/td\u003e\n                    \u003ctd\u003eSoosan, Stanley, Furukawa, Krupp, Atlas Copco, NPK, etc.\u003c\/td\u003e\n                \u003c\/tr\u003e\n                \u003ctr\u003e\n                    \u003ctd\u003e\u003cstrong\u003eGas Compatibility\u003c\/strong\u003e\u003c\/td\u003e\n                    \u003ctd\u003e100% Pure Nitrogen (N2) ONLY\u003c\/td\u003e\n                \u003c\/tr\u003e\n                \u003ctr\u003e\n                    \u003ctd\u003e\u003cstrong\u003eTypical Gauge Ranges\u003c\/strong\u003e\u003c\/td\u003e\n                    \u003ctd\u003e0 - 100 kg\/cm² (Low Range) \/ 0 - 250 Bar \/ 0 - 3600 PSI (High Range)\u003c\/td\u003e\n                \u003c\/tr\u003e\n                \u003ctr\u003e\n                    \u003ctd\u003e\u003cstrong\u003eManifold Features\u003c\/strong\u003e\u003c\/td\u003e\n                    \u003ctd\u003eIntegrated pressure release (bleed) valve for precision adjustment\u003c\/td\u003e\n                \u003c\/tr\u003e\n                \u003ctr\u003e\n                    \u003ctd\u003e\u003cstrong\u003eHose Type\u003c\/strong\u003e\u003c\/td\u003e\n                    \u003ctd\u003eHigh-Pressure micro-bore hose (Typically 1.5m to 2m length)\u003c\/td\u003e\n                \u003c\/tr\u003e\n                \u003ctr\u003e\n                    \u003ctd\u003e\u003cstrong\u003eCylinder Connection\u003c\/strong\u003e\u003c\/td\u003e\n                    \u003ctd\u003eStandard Nitrogen bottle regulator thread (CGA 580 or regional equivalent)\u003c\/td\u003e\n                \u003c\/tr\u003e\n                \u003ctr\u003e\n                    \u003ctd\u003e\u003cstrong\u003eBreaker Adapters\u003c\/strong\u003e\u003c\/td\u003e\n                    \u003ctd\u003eMultiple interchangeable threaded fittings to fit various OEM charging valves\u003c\/td\u003e\n                \u003c\/tr\u003e\n            \u003c\/tbody\u003e\n        \u003c\/table\u003e\n    \u003c\/div\u003e\n\n    \u003ch2\u003eApplication Matrix\u003c\/h2\u003e\n    \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eQuarrying \u0026amp; Mining Operations:\u003c\/strong\u003e Daily or weekly verification of breaker accumulator pressures to ensure maximum rock-breaking efficiency and minimize excavator downtime.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eConstruction \u0026amp; Demolition:\u003c\/strong\u003e Allows field mechanics to quickly recharge a hammer that has lost impact power due to gradual N2 seepage past the piston seals.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eHeavy Equipment Rental Fleets:\u003c\/strong\u003e An essential diagnostic tool for fleet managers to inspect returning attachments and prepare them for the next rental contract according to factory specifications.\u003c\/li\u003e\n    \u003c\/ul\u003e\n\n    \u003ch2\u003eKoeed B2B Tool: Hydraulic Breaker N2 Pressure Converter\u003c\/h2\u003e\n    \u003cp\u003eHydraulic breaker service manuals often use different pressure units depending on their region of origin (e.g., Soosan uses kg\/cm², Stanley uses PSI, European brands use Bar). Use this specialized converter to instantly translate your OEM manual's target pressure into the units displayed on your charging kit's gauge.\u003c\/p\u003e\n    \n    \u003cnoscript\u003e\n        \u003cp\u003e\u003cem\u003ePlease enable JavaScript to utilize the interactive pressure conversion tool.\u003c\/em\u003e\u003c\/p\u003e\n    \u003c\/noscript\u003e\n\n    \u003cdiv class=\"koeed-tool-wrapper\"\u003e\n        \u003clabel for=\"koeed-n2-value\" style=\"font-weight: bold; color: #0056b3;\"\u003eEnter Pressure Value:\u003c\/label\u003e\n        \u003cinput type=\"number\" id=\"koeed-n2-value\" placeholder=\"e.g., 16\" oninput=\"koeedConvertPressure()\" style=\"width: 100%; padding: 10px; margin: 10px 0; border: 1px solid #ccc; border-radius: 4px;\"\u003e\n        \n        \u003clabel for=\"koeed-n2-unit\" style=\"font-weight: bold; color: #0056b3;\"\u003eSelect Input Unit:\u003c\/label\u003e\n        \u003cselect id=\"koeed-n2-unit\" onchange=\"koeedConvertPressure()\" style=\"width: 100%; padding: 10px; margin: 10px 0; border: 1px solid #ccc; border-radius: 4px;\"\u003e\n            \u003coption value=\"kgcm2\"\u003ekg\/cm² (Standard for Soosan\/Korean brands)\u003c\/option\u003e\n            \u003coption value=\"bar\"\u003eBar (European \/ General Standard)\u003c\/option\u003e\n            \u003coption value=\"psi\"\u003ePSI (Standard for Stanley\/US brands)\u003c\/option\u003e\n            \u003coption value=\"mpa\"\u003eMPa (Megapascal \/ SI Standard)\u003c\/option\u003e\n        \u003c\/select\u003e\n        \n        \u003cdiv id=\"koeed-tool-result\" class=\"koeed-result-box\" style=\"display:none;\"\u003e\n            \u003ch4 style=\"margin-top:0; color: #16c8c8;\"\u003eConverted Target Pressures:\u003c\/h4\u003e\n            \u003cul id=\"koeed-conversion-list\" style=\"list-style-type: none; padding-left: 0;\"\u003e\u003c\/ul\u003e\n        \u003c\/div\u003e\n    \u003c\/div\u003e\n\n    \u003ch2\u003eTroubleshooting \u0026amp; FAQ\u003c\/h2\u003e\n    \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eWhy has my hydraulic breaker lost its impact power and speed?\u003c\/strong\u003e The most common cause of sudden or gradual loss of impact power is low nitrogen gas pressure in the backhead. If the N2 leaks out past worn seals, the \"gas spring\" effect is lost. You must use the charging kit to check the static pressure and recharge it to the manual's specification.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eWhat happens if I overcharge the breaker with too much Nitrogen?\u003c\/strong\u003e Overcharging the backhead is just as detrimental as undercharging. If the N2 pressure is too high, the hydraulic oil pressure from the excavator will not be strong enough to lift the piston against the gas. The breaker will completely lock up and fail to strike, or it may blow out the internal main seals. Always use the bleed valve on the charging manifold to slowly release excess gas if overcharged.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eCan I use an air compressor to charge the breaker if I run out of Nitrogen?\u003c\/strong\u003e \u003cstrong\u003eABSOLUTELY NOT.\u003c\/strong\u003e This is a fatal mistake. Hydraulic breakers generate extreme heat and pressure. Compressing oxygen (found in normal air) in the presence of hydraulic oil vapors creates a highly explosive mixture. This \"diesel effect\" will cause the breaker to explode, potentially causing lethal shrapnel injuries. Use 100% pure Nitrogen only.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eHow often should I check the Nitrogen pressure using this kit?\u003c\/strong\u003e It is highly recommended to check the N2 pressure every 100 to 250 operating hours, before the start of a major demolition project, or immediately if the operator notices increased vibration in the excavator cab or a drop in rock-breaking performance.\u003c\/li\u003e\n    \u003c\/ul\u003e\n\n    \u003ch3\u003eCross-Reference Guide\u003c\/h3\u003e\n    \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eAttachment Compatibility:\u003c\/strong\u003e The multi-adapter design ensures fitment not only for \u003cstrong\u003eSoosan (SB40, SB50, SB81, etc.)\u003c\/strong\u003e and \u003cstrong\u003eStanley (MB156, MB256, etc.)\u003c\/strong\u003e, but also serves as a reliable maintenance kit for MSB, Daemo, Toku, and Rammer breakers.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eAdapter Thread Matching:\u003c\/strong\u003e Always visually verify and hand-thread the adapter into the breaker's charging valve before applying wrench torque. Cross-threading a high-pressure N2 valve will permanently damage the breaker's backhead housing.\u003c\/li\u003e\n    \u003c\/ul\u003e\n\n\u003c\/div\u003e\n\n\u003cstyle\u003e\n    .koeed-container {\n        width: 100%;\n        color: #333;\n        line-height: 1.6;\n        box-sizing: border-box;\n    }\n    .koeed-container h2 {\n        color: #0056b3;\n        border-bottom: 2px solid #16c8c8;\n        padding-bottom: 5px;\n        margin-top: 30px;\n    }\n    .koeed-container h3 {\n        color: #0056b3;\n        margin-top: 20px;\n    }\n    .koeed-container ul, .koeed-container ol {\n        padding-left: 20px;\n    }\n    .koeed-container li {\n        margin-bottom: 10px;\n    }\n    .koeed-container strong {\n        color: #111;\n    }\n    .koeed-table {\n        width: 100%;\n        border-collapse: collapse;\n        margin-top: 15px;\n        margin-bottom: 15px;\n        min-width: 600px;\n    }\n    .koeed-table th, .koeed-table td {\n        border: 1px solid #eeeeee;\n        padding: 12px;\n        text-align: left;\n    }\n    .koeed-table th {\n        background-color: #0056b3;\n        color: #ffffff;\n    }\n    .koeed-table tbody tr:nth-child(odd) {\n        background-color: #f4fcfc;\n    }\n    .koeed-table tbody tr:nth-child(even) {\n        background-color: #fafafa;\n    }\n    .koeed-tool-wrapper {\n        background-color: #f4fcfc;\n        border: 1px solid #16c8c8;\n        border-radius: 6px;\n        padding: 20px;\n        margin: 20px 0;\n    }\n    .koeed-result-box {\n        margin-top: 20px;\n        padding: 15px;\n        background-color: #ffffff;\n        border-left: 4px solid #16c8c8;\n        border-radius: 4px;\n    }\n    .koeed-result-box li {\n        font-size: 16px;\n        font-weight: bold;\n        margin-bottom: 8px;\n    }\n\u003c\/style\u003e\n\n\u003cscript\u003e\n    function koeedConvertPressure() {\n        var valInput = document.getElementById('koeed-n2-value').value;\n        var unit = document.getElementById('koeed-n2-unit').value;\n        var resultBox = document.getElementById('koeed-tool-result');\n        var list = document.getElementById('koeed-conversion-list');\n        \n        if (!valInput || isNaN(valInput) || valInput \u003c= 0) {\n            resultBox.style.display = \"none\";\n            return;\n        }\n        \n        var val = parseFloat(valInput);\n        var bar, psi, mpa, kgcm2;\n        \n        \/\/ Convert input to Bar first as the baseline\n        switch(unit) {\n            case 'bar':\n                bar = val;\n                break;\n            case 'psi':\n                bar = val \/ 14.5038;\n                break;\n            case 'mpa':\n                bar = val * 10;\n                break;\n            case 'kgcm2':\n                bar = val \/ 1.01972;\n                break;\n        }\n        \n        \/\/ Calculate all units from Bar\n        psi = bar * 14.5038;\n        mpa = bar \/ 10;\n        kgcm2 = bar * 1.01972;\n        \n        list.innerHTML = \"\";\n        \n        if (unit !== 'bar') list.innerHTML += \"\u003cli\u003e\" + bar.toFixed(2) + \" Bar\u003c\/li\u003e\";\n        if (unit !== 'psi') list.innerHTML += \"\u003cli\u003e\" + psi.toFixed(2) + \" PSI\u003c\/li\u003e\";\n        if (unit !== 'kgcm2') list.innerHTML += \"\u003cli\u003e\" + kgcm2.toFixed(2) + \" kg\/cm²\u003c\/li\u003e\";\n        if (unit !== 'mpa') list.innerHTML += \"\u003cli\u003e\" + mpa.toFixed(3) + \" MPa\u003c\/li\u003e\";\n        \n        resultBox.style.display = \"block\";\n    }\n\u003c\/script\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@graph\": [\n    {\n      \"@type\": \"FAQPage\",\n      \"mainEntity\": [\n        {\n          \"@type\": \"Question\",\n          \"name\": \"Why has my hydraulic breaker lost its impact power and speed?\",\n          \"acceptedAnswer\": {\n            \"@type\": \"Answer\",\n            \"text\": \"The most common cause of sudden or gradual loss of impact power is low nitrogen gas pressure in the backhead. If the N2 leaks out past worn seals, the 'gas spring' effect is lost. You must use the charging kit to check the static pressure and recharge it to the manual's specification.\"\n          }\n        },\n        {\n          \"@type\": \"Question\",\n          \"name\": \"What happens if I overcharge the breaker with too much Nitrogen?\",\n          \"acceptedAnswer\": {\n            \"@type\": \"Answer\",\n            \"text\": \"Overcharging the backhead is just as detrimental as undercharging. If the N2 pressure is too high, the hydraulic oil pressure from the excavator will not be strong enough to lift the piston against the gas. The breaker will completely lock up and fail to strike, or it may blow out the internal main seals. Always use the bleed valve on the charging manifold to slowly release excess gas if overcharged.\"\n          }\n        },\n        {\n          \"@type\": \"Question\",\n          \"name\": \"Can I use an air compressor to charge the breaker if I run out of Nitrogen?\",\n          \"acceptedAnswer\": {\n            \"@type\": \"Answer\",\n            \"text\": \"ABSOLUTELY NOT. This is a fatal mistake. Hydraulic breakers generate extreme heat and pressure. Compressing oxygen (found in normal air) in the presence of hydraulic oil vapors creates a highly explosive mixture. This 'diesel effect' will cause the breaker to explode, potentially causing lethal shrapnel injuries. 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