{"id":2033,"date":"2026-04-17T09:32:20","date_gmt":"2026-04-17T09:32:20","guid":{"rendered":"https:\/\/planetary-gear-box.top\/product\/ever-power-ep-ctd3300-planetary-gearbox-replacement-of-brevini-riduttori-ctd3300\/"},"modified":"2026-04-17T09:32:20","modified_gmt":"2026-04-17T09:32:20","slug":"ever-power-ep-ctd3300-planetary-gearbox-replacement-of-brevini-riduttori-ctd3300","status":"publish","type":"product","link":"https:\/\/planetary-gear-box.top\/es_pe\/product\/ever-power-ep-ctd3300-planetary-gearbox-replacement-of-brevini-riduttori-ctd3300\/","title":{"rendered":"EVER POWER EP-CTD3300 Planetary Gearbox Replacement Of Brevini Riduttori CTD3300"},"content":{"rendered":"

EP-CTD3300 Planetary Track Drive Gearbox ?? 33,000 Nm<\/h1>\n

Brevini CTD3300 Compatible Replacement | EVER POWER<\/p>\n

The EP-CTD3300<\/strong> delivers 33,000 Nm<\/strong> output torque with an optionally available dual-speed function<\/strong> built directly into the gearbox body ?? replacing the need for a costly separate two-speed motor. Engineered to replace the Brevini riduttori CTD3300, this unit is specified by machine designers who need one track drive unit to serve both high-torque work mode and faster tramming mode on 30-40 t class equipment.<\/p>\n

\"EP-CTD3300<\/p>\n

Product Overview<\/h2>\n

The EP-CTD3300 serves 30-40 t hydraulic excavators, large tracked road headers, heavy crawler-mounted pile drivers and large-format tracked agricultural machines<\/strong>. The gearbox-integrated dual-speed mechanism hydraulically engages or bypasses the third planetary stage, providing a torque-biased low speed for work and a higher speed for travel ?? all controlled by the machine’s existing travel control valve without additional hydraulic circuit hardware.<\/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-CTD3300<\/td>\n<\/tr>\n
Replaces<\/td>\nBrevini riduttori CTD3300<\/td>\n<\/tr>\n
Max Output Torque<\/td>\n33,000 Nm<\/td>\n<\/tr>\n
Gear Stages<\/td>\n3<\/td>\n<\/tr>\n
Dual-Speed<\/td>\nOptional hydraulic ratio change<\/td>\n<\/tr>\n
Ratio Range<\/td>\n30:1 – 160:1<\/td>\n<\/tr>\n
Max Input Speed<\/td>\n2,400 rpm<\/td>\n<\/tr>\n
Continuous Thermal Limit<\/td>\n48 kW<\/td>\n<\/tr>\n
Housing Material<\/td>\nDuctile Iron GGG50, epoxy-chromate coated<\/td>\n<\/tr>\n
Lubrication<\/td>\nSynthetic ISO VG 220 (factory filled)<\/td>\n<\/tr>\n
Protection Class<\/td>\nIP68<\/td>\n<\/tr>\n
Operating Temp.<\/td>\n-30 degC to +85 degC<\/td>\n<\/tr>\n
Approx. Weight<\/td>\n~98 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

In single-speed configuration, the three planetary stages operate in series providing the full 160:1 ratio at maximum torque. In dual-speed configuration<\/strong>, a hydraulically actuated clutch pack inside the stage-3 housing engages or disengages stage 3 independently. When stage 3 is disengaged (bridged), the unit outputs at the 2-stage ratio ?? approximately 2.5x faster than the 3-stage ratio ?? allowing the machine to tramp to the next work position quickly before re-engaging stage 3 for work.<\/p>\n

The dual-speed clutch pack<\/strong> uses sintered metal friction discs rated for 50,000 engagement cycles, managed by a solenoid valve on the machine travel circuit. Speed changes occur smoothly under load at walking pace.<\/p>\n

Core Advantages<\/h2>\n\n\n\n\n
\n
◼ Gearbox-Integrated Dual Speed<\/strong>
No separate two-speed motor required ?? saves cost, weight and hydraulic circuit complexity.<\/div>\n<\/td>\n
\n
◼ 50,000-Cycle Clutch Pack<\/strong>
Sintered metal discs rated for 50,000 speed changes ?? suits high-frequency dual-speed operation.<\/div>\n<\/td>\n<\/tr>\n
\n
◼ 33,000 Nm High Torque<\/strong>
Handles the highest torque demands of 30-40 t class machines in single-speed work mode.<\/div>\n<\/td>\n
\n
◼ Epoxy-Chromate Coating<\/strong>
500-hour salt spray rated external coating for extended outdoor storage and harsh site conditions.<\/div>\n<\/td>\n<\/tr>\n
\n
◼ Direct CTD3300 Drop-In<\/strong>
Matching flange and port layout ?? installs in the original Brevini housing pocket without modification.<\/div>\n<\/td>\n<\/tr>\n<\/table>\n

Structure and Material Technology<\/h2>\n

The housing is cast from GGG50 ductile iron<\/strong> and externally coated with epoxy-chromate primer + polyurethane topcoat<\/strong> (500-hour salt spray). The dual-speed clutch housing is a separate bolted module that can be removed and serviced independently without disturbing the main gear train. All planet gears use 17CrNiMo6 carburised steel<\/strong> ground to DIN 5. The output bearing is a large-bore taper roller pair<\/strong> pre-loaded at the factory to prevent axial play under the combined sprocket and chain loads of a 35 t class excavator.<\/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
Earthmoving<\/td>\n35 t excavator, quarry bench<\/td>\nLow speed for bench digging; high speed for 200 m cross-quarry trams between benches.<\/td>\n<\/tr>\n
Mining<\/td>\nCrawler road header, coal mine drift<\/td>\nSlow precise cutting advance; faster speed for repositioning between cuts.<\/td>\n<\/tr>\n
Piling<\/td>\nTracked hydraulic piling rig<\/td>\nLow speed for precise pile position; faster tramming between pile locations on large sites.<\/td>\n<\/tr>\n
Agriculture<\/td>\nLarge tracked field cultivator<\/td>\nLow speed for field work; higher speed for road travel between fields.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Selection Guide<\/h2>\n
    \n
  1. Dual Speed Required?<\/strong> ?? Confirm if machine needs two distinct travel speed ranges; standard single-speed available at lower cost.<\/li>\n
  2. Ratio Selection<\/strong> ?? State required low speed and high speed; EVER POWER will confirm stage 2\/3-stage ratios.<\/li>\n
  3. Clutch Engagement Frequency<\/strong> ?? For high-frequency dual-speed (> 30 changes\/hour) specify heavy-duty clutch disc set.<\/li>\n
  4. Ambient Temperature<\/strong> ?? Below -25 degC: specify Arctic oil and seal grade.<\/li>\n
  5. Motor Flange<\/strong> ?? Provide hydraulic motor model for direct shaft and flange confirmation.<\/li>\n<\/ol>\n

    Contact our engineers<\/a> for dual-speed ratio optimisation.<\/p>\n

    Brevini CTD3300 vs. EVER POWER EP-CTD3300<\/h2>\n

    Important Notice:<\/strong> EVER POWER references the Brevini riduttori CTD3300 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-CTD3300 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 CTD3300<\/th>\nEVER POWER EP-CTD3300<\/th>\n<\/thead>\n
    Price<\/td>\nHigh OEM rate<\/td>\nCompetitive alternative<\/td>\n<\/tr>\n
    Lead Time<\/td>\n10-18 weeks<\/td>\n3-6 weeks<\/td>\n<\/tr>\n
    Dual-Speed<\/td>\nAvailable at premium<\/td>\nStandard catalogue option<\/td>\n<\/tr>\n
    Clutch Life<\/td>\nStandard<\/td>\n50,000-cycle sintered disc<\/td>\n<\/tr>\n
    Warranty<\/td>\n12 months<\/td>\n18 months<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

    Matched travel motors for EP-CTD3300 single and dual-speed configurations available from EVER POWER. Request a complete drive system quotation.<\/a><\/p>\n

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