{"id":2029,"date":"2026-04-17T09:32:19","date_gmt":"2026-04-17T09:32:19","guid":{"rendered":"https:\/\/planetary-gear-box.top\/product\/ever-power-ep-ctd2051-planetary-gearbox-replacement-of-brevini-riduttori-ctd2051\/"},"modified":"2026-04-17T09:32:19","modified_gmt":"2026-04-17T09:32:19","slug":"ever-power-ep-ctd2051-planetary-gearbox-replacement-of-brevini-riduttori-ctd2051","status":"publish","type":"product","link":"https:\/\/planetary-gear-box.top\/ru\/product\/ever-power-ep-ctd2051-planetary-gearbox-replacement-of-brevini-riduttori-ctd2051\/","title":{"rendered":"EVER POWER EP-CTD2051 Planetary Gearbox Replacement Of Brevini Riduttori CTD2051"},"content":{"rendered":"

EP-CTD2051 Planetary Track Drive Gearbox ?? 20,510 Nm<\/h1>\n

Brevini CTD2051 Compatible Replacement | EVER POWER<\/p>\n

The EP-CTD2051<\/strong> bridges the gap between compact and mid-size tracked equipment, delivering 20,510 Nm<\/strong> output torque with a 2-to-3-stage configurable planetary design. As a direct replacement for the Brevini riduttori CTD2051, this unit is widely used in 5-10 t class excavators, tracked scissor lift bases and light utility crawler vehicles where mounting space is tight but torque requirements exceed mini-class units.<\/p>\n

\"EP-CTD2051<\/p>\n

Product Overview<\/h2>\n

The EP-CTD2051 targets 5-10 t tracked construction equipment, scissor lift and aerial work platform (AWP) crawler bases, tracked compact carriers and utility track vehicles<\/strong>. Its configurable stage count<\/strong> ?? 2-stage for faster travel speed, 3-stage for maximum pulling torque ?? is managed by swapping a single internal stage module at the factory, keeping the external housing and flange pattern unchanged.<\/p>\n

Technical Parameters<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Parameter<\/th>\nValue<\/th>\n<\/thead>\n
Model<\/td>\nEP-CTD2051<\/td>\n<\/tr>\n
Replaces<\/td>\nBrevini riduttori CTD2051<\/td>\n<\/tr>\n
Max Output Torque<\/td>\n20,510 Nm<\/td>\n<\/tr>\n
Gear Stages<\/td>\n2 or 3 (configurable)<\/td>\n<\/tr>\n
Ratio Range<\/td>\n18:1 – 90:1<\/td>\n<\/tr>\n
Max Input Speed<\/td>\n3,200 rpm<\/td>\n<\/tr>\n
Efficiency<\/td>\n>= 96% per stage<\/td>\n<\/tr>\n
Backlash<\/td>\n<= 10 arcmin<\/td>\n<\/tr>\n
Housing Material<\/td>\nDuctile Iron GGG50<\/td>\n<\/tr>\n
Lubrication<\/td>\nSynthetic ISO VG 150 \/ VG 220<\/td>\n<\/tr>\n
Protection Class<\/td>\nIP67<\/td>\n<\/tr>\n
Operating Temp.<\/td>\n-25 degC to +80 degC<\/td>\n<\/tr>\n
Approx. Weight<\/td>\n~42 kg<\/td>\n<\/tr>\n
Brake<\/td>\nSpring multi-disc \/ hydraulic release<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Working Principle<\/h2>\n

\"EVER<\/p>\n

The configurable design operates by selecting either a 2-stage or 3-stage planet train module installed inside the same housing shell. In 2-stage mode<\/strong> the unit delivers maximum travel speed ?? suited to AWP bases that traverse job sites quickly between lifts. In 3-stage mode<\/strong> the same housing delivers maximum tractive effort for pushing through soft ground or climbing steep ramps.<\/p>\n

The floating sun gear<\/strong> in both configurations self-centres the load across all planets, compensating for minor motor shaft run-out and extending planet bearing life in high-cycle AWP applications where the travel motor starts and stops hundreds of times per shift.<\/p>\n

Core Advantages<\/h2>\n\n\n\n\n
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◆ 2\/3-Stage Configurable<\/strong>
Same housing serves two ratio ranges ?? reduces OEM inventory from two part numbers to one.<\/div>\n<\/td>\n
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◆ Floating Sun Gear<\/strong>
Self-equalises planet loading, extending bearing life in high-start-stop AWP duty cycles.<\/div>\n<\/td>\n<\/tr>\n
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◆ Compact 42 kg Body<\/strong>
Fits 5-10 t class machine track frames without structural modification.<\/div>\n<\/td>\n
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◆ IP67 All-Terrain Sealing<\/strong>
Handles mud, fine dust and pressure wash common on construction sites and rental fleets.<\/div>\n<\/td>\n<\/tr>\n
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◆ Direct CTD2051 Replacement<\/strong>
Identical flange and brake port layout ?? bolt-in, no adaptation required.<\/div>\n<\/td>\n<\/tr>\n<\/table>\n

Structure and Material Technology<\/h2>\n

The housing is pressure-die-cast from GGG50 ductile iron<\/strong> and finish-machined to H7 bore tolerance. Planet gears use 17CrNiMo6 case-hardening steel<\/strong> carburised to 0.8-1.1 mm case depth and ground to DIN 5 accuracy. The brake disc stack uses sintered metal friction discs<\/strong> rated for 80,000 engagement cycles ?? important for AWP applications where the parking brake is engaged and released multiple times per hour.<\/p>\n

Typical Application Scenarios<\/h2>\n\n\n\n\n\n\n\n
Industry<\/th>\nMachine \/ Use<\/th>\nKey Requirement<\/th>\n<\/thead>\n
AWP \/ Lifting<\/td>\nTracked scissor lift base (8-12 m)<\/td>\n3-stage for ramp climbing; 2-stage for yard tramming between lifts.<\/td>\n<\/tr>\n
Construction<\/td>\n6-8 t compact excavator<\/td>\nWide ratio range covers both trench digging (high torque) and road travel (higher speed).<\/td>\n<\/tr>\n
Utility<\/td>\nTracked compact carrier \/ dumper<\/td>\nIP67 handles quarry dust and water crossings common in utility groundworks.<\/td>\n<\/tr>\n
Maintenance<\/td>\nPipeline inspection crawler<\/td>\nSlow precise positioning in confined trenches; spring brake holds on inclined pipe sections.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Selection Guide<\/h2>\n
    \n
  1. Stage Count<\/strong> ?? 2-stage for max speed; 3-stage for max tractive effort. State required ratio.<\/li>\n
  2. Machine Weight (t)<\/strong> ?? Confirm drawbar pull requirement for worst-case gradient.<\/li>\n
  3. Duty Cycle<\/strong> ?? AWP high-start-stop vs continuous excavator travel affects brake specification.<\/li>\n
  4. Motor Flange<\/strong> ?? SAE-B 2-bolt or 4-bolt; shaft diameter and keyway specification.<\/li>\n
  5. Rental Fleet Requirement<\/strong> ?? Rental fleets benefit from seal kit pre-packing; specify at order.<\/li>\n<\/ol>\n

    Contact our application engineers<\/a> for a stage-count selection recommendation.<\/p>\n

    Brevini CTD2051 vs. EVER POWER EP-CTD2051<\/h2>\n

    Important Notice:<\/strong> EVER POWER references the Brevini riduttori CTD2051 model number solely to assist customers in identifying a compatible replacement. We do not manufacture, sell, or claim any affiliation with Brevini riduttori. No trademarks or intellectual property of Brevini are reproduced. The EP-CTD2051 is an independently designed and manufactured product that is dimensionally and functionally compatible.<\/p>\n\n\n\n\n\n\n\n\n
    Aspect<\/th>\nBrevini CTD2051<\/th>\nEVER POWER EP-CTD2051<\/th>\n<\/thead>\n
    Price<\/td>\nOEM premium<\/td>\nCompetitive aftermarket rate<\/td>\n<\/tr>\n
    Lead Time<\/td>\n6-14 weeks<\/td>\n2-4 weeks<\/td>\n<\/tr>\n
    Stage Flexibility<\/td>\nFixed per model<\/td>\n2 or 3-stage same housing<\/td>\n<\/tr>\n
    Brake Disc Life<\/td>\nStandard<\/td>\n80,000 cycle sintered discs<\/td>\n<\/tr>\n
    Warranty<\/td>\n12 months<\/td>\n18 months standard<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

    Complete track drive kits (motor + gearbox) available from EVER POWER. Ask about kit pricing.<\/a><\/p>\n

    \"EVER
    \nQuality Certifications and Service Commitment<\/h2>\n