{"id":1996,"date":"2026-04-17T09:19:00","date_gmt":"2026-04-17T09:19:00","guid":{"rendered":"https:\/\/planetary-gear-box.top\/product\/ever-power-ep-rpr2800-planetary-gearbox-replacement-of-brevini-riduttori-rpr2800\/"},"modified":"2026-04-17T09:19:00","modified_gmt":"2026-04-17T09:19:00","slug":"ever-power-ep-rpr2800-planetary-gearbox-replacement-of-brevini-riduttori-rpr2800","status":"publish","type":"product","link":"https:\/\/planetary-gear-box.top\/hi\/product\/ever-power-ep-rpr2800-planetary-gearbox-replacement-of-brevini-riduttori-rpr2800\/","title":{"rendered":"EVER POWER EP-RPR2800 Planetary Gearbox Replacement Of Brevini Riduttori RPR2800"},"content":{"rendered":"

EP-RPR2800 Planetary Gearbox<\/h1>\n

EVER POWER 2-Stage 82,000 Nm Extreme-Duty High-Efficiency Planetary Gearbox<\/p>\n

The EP-RPR2800<\/strong> is EVER POWER’s most powerful 2-stage RPR gearbox, delivering 82,000 Nm<\/strong> output torque from a 2-stage design that maximises power transmission efficiency at extreme torque. Replacing the Brevini riduttori RPR2800, this unit is the preferred choice for high-power continuous-duty applications where the efficiency advantage of 2-stage design outweighs the cost of the larger housing<\/strong> \u2014 large mine ventilation fan drives, ultra-large pump drives, heavy ship thruster drives and primary metal processing drives.<\/p>\n

\"EP-RPR2800<\/p>\n

Technical Parameters<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n\n
Parameter<\/th>\nValue<\/th>\n<\/tr>\n<\/thead>\n
Model<\/td>\nEP-RPR2800<\/td>\n<\/tr>\n
Replaces<\/td>\nBrevini riduttori RPR2800<\/td>\n<\/tr>\n
Max Output Torque<\/td>\n82,000 Nm<\/td>\n<\/tr>\n
Gear Stages<\/td>\n2<\/td>\n<\/tr>\n
Ratio Range<\/td>\n26:1 – 105:1<\/td>\n<\/tr>\n
Max Input Speed<\/td>\n2,000 rpm<\/td>\n<\/tr>\n
Protection Class<\/td>\nIP67<\/td>\n<\/tr>\n
Approx. Weight<\/td>\n~210 kg<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Working Principle<\/h2>\n

\"EVER<\/p>\n

Two extreme-large-module planetary stages handle up to 120 kW continuous input power. The active oil-jet lubrication with integrated oil cooler bypass valve<\/strong> allows the oil system to circulate warm oil through the bypass at startup \u2014 protecting bearings and gear contacts from cold oil viscosity stress before the oil reaches operating temperature. The output flange features a large-diameter precision register<\/strong> for accurate centering of large-bore coupling flanges without separate centering rings.<\/p>\n

Core Advantages<\/h2>\n\n\n\n\n
\n
◼ 82,000 Nm Extreme Torque<\/strong>
Most powerful 2-stage RPR gearbox in EVER POWER’s catalogue.<\/div>\n<\/td>\n
\n
◼ 2x VAR Steel \u2014 Highest Purity<\/strong>
Double vacuum-arc-remelted steel \u2014 maximum fatigue life at extreme continuous duty.<\/div>\n<\/td>\n<\/tr>\n
\n
◼ Cold-Start Oil Bypass Valve<\/strong>
Circulates warm oil to all contacts before cold oil reaches operating temperature.<\/div>\n<\/td>\n
\n
◼ ISO Class 4 Gear Accuracy<\/strong>
Highest accuracy option \u2014 minimum transmission error for large machine drives.<\/div>\n<\/td>\n<\/tr>\n
\n
◼ Direct RPR2800 Replacement<\/strong>
Same flange dimensions as original Brevini unit.<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n<\/table>\n

Structure and Material Technology<\/h2>\n

\"EVER<\/p>\n

All gears use 18CrNiMo7-6 double vacuum-arc-remelted (2x VAR) steel<\/strong> \u2014 the highest available purity for the gear steel used in any EVER POWER product. Carburising depth is 1.3-1.6 mm; profiles ground to ISO 1328 class 4. Planet carriers are GGG70 heavy-section nodular iron forgings<\/strong>. The output shaft is a solid 42CrMo4 + 18CrNiMo7-6 composite forging<\/strong> for maximum bending stiffness.<\/p>\n

Typical Application Scenarios<\/h2>\n\n\n\n\n\n\n\n\n
Industry<\/th>\nApplication<\/th>\nKey Requirement<\/th>\n<\/tr>\n<\/thead>\n
Mining<\/td>\nUltra-large mine ventilation fan<\/td>\n82,000 Nm allows direct drive of large fan impeller without belt stage.<\/td>\n<\/tr>\n
Metal<\/td>\nPrimary aluminium reduction cell stirrer<\/td>\n2-stage efficiency critical for energy-intensive electrolytic reduction process.<\/td>\n<\/tr>\n
Marine<\/td>\nLarge thruster drive, heavy AHTS vessel<\/td>\n2-stage minimises gearbox losses in tight engine room heat budget.<\/td>\n<\/tr>\n
Water<\/td>\nVery large vertical turbine pump, hydroelectric plant<\/td>\n82,000 Nm handles large turbine pump startup torque without soft-starter.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Selection Guide<\/h2>\n
    \n
  1. Required Output Torque (Nm)<\/strong> \u2014 Confirm peak and continuous torque requirement with appropriate safety factor.<\/li>\n
  2. Gear Ratio<\/strong> \u2014 Motor speed (rpm) divided by required output speed (rpm).<\/li>\n
  3. Duty Cycle<\/strong> \u2014 Continuous S1 or intermittent S3\/S6; affects thermal de-rating.<\/li>\n
  4. Motor Interface<\/strong> \u2014 Flange type (SAE\/ISO), shaft diameter, keyway or spline specification.<\/li>\n
  5. Environment<\/strong> \u2014 IP class, ambient temperature, corrosion zone, orientation.<\/li>\n<\/ol>\n

    Contact our engineering team<\/a> for a free application sizing review.<\/p>\n

    Brevini RPR2800 vs. EVER POWER EP-RPR2800<\/h2>\n

    Important Notice:<\/strong> EVER POWER references the Brevini riduttori RPR2800 model number solely to assist customers in identifying a compatible replacement. We do not manufacture, sell, or claim any affiliation with Brevini. No trademarks or intellectual property of Brevini are reproduced or infringed. Our EP-RPR2800 is an independently designed and manufactured product that is dimensionally and functionally compatible.<\/p>\n\n\n\n\n\n\n\n\n\n
    Aspect<\/th>\nBrevini RPR2800<\/th>\nEVER POWER EP-RPR2800<\/th>\n<\/tr>\n<\/thead>\n
    Price<\/td>\nVery high OEM rate<\/td>\nCompetitive at extreme scale<\/td>\n<\/tr>\n
    Lead Time<\/td>\n14-22 weeks<\/td>\n6-8 weeks<\/td>\n<\/tr>\n
    Steel Grade<\/td>\nStandard VAR<\/td>\n2x VAR \u2014 highest purity<\/td>\n<\/tr>\n
    Cold-Start Protection<\/td>\nNot standard<\/td>\nBypass valve standard<\/td>\n<\/tr>\n
    Warranty<\/td>\n12 months<\/td>\n18 months<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

    \"EVER
    \nEVER POWER also supplies matched electric and hydraulic motors<\/strong> for complete drive system packages. Enquire about motor pairing.<\/a><\/p>\n

    Quality Certifications and Service Commitment<\/h2>\n