الوصف
EP-CTU3700 Planetary Track Drive Gearbox – 37,000 Nm
Brevini CTU3700 Compatible Replacement | EVER POWER
ال EP-CTU3700 is EVER POWER’s flagship planetary track drive gearbox – the largest in the CTU replacement series. Engineered as a direct replacement for the Brevini riduttori CTU3700, this unit achieves a class-leading 37000 نيوتن متر output torque and a maximum ratio of 300:1, serving the largest tracked mining machines, ultra-heavy crawler cranes, and extreme-duty industrial track systems where no compromise is acceptable.
نظرة عامة على المنتج
Target machines: 60-100 t+ hydraulic mining excavators, large Liebherr/Kobelco/Hitachi class crawler crane undercarriages, heavy-duty tracked tunnel boring machine backup systems, large offshore jack-up leg drives and extreme-duty industrial track transfer systems. The EP-CTU3700 is available with optional integrated oil temperature and vibration monitoring sensor ports, enabling connection to machine health monitoring and predictive maintenance systems – a feature increasingly demanded by large mining and offshore operators.
المعايير الفنية
| المعلمة | قيمة |
|---|---|
| نموذج | EP-CTU3700 |
| يستبدل | Brevini riduttori CTU3700 |
| أقصى عزم دوران ناتج | 37000 نيوتن متر |
| مراحل التروس | 3 – 4 |
| نطاق النسبة | 40:1 – 300:1 |
| أقصى سرعة إدخال | 2000 دورة في الدقيقة |
| الحد الحراري المستمر | 65 كيلوواط |
| قدرة التحميل الزائد | 3.0x rated (momentary) |
| مواد بناء التغليف | حديد مطاوع GGG50 + إيبوكسي بحري (C5M) |
| تشحيم | زيت صناعي ISO VG 320 أو PAO VG 460 |
| فئة الحماية | IP68 |
| درجة حرارة التشغيل | من -35 درجة مئوية إلى +90 درجة مئوية |
| الوزن التقريبي | ~155 kg |
| Monitoring Ports | Oil temp (PT100 boss), vibration (M8 tapped) |
| الفرامل | Spring multi-disc failsafe / hydraulic release |
مبدأ العمل
The 4-stage architecture of the EP-CTU3700 stacks four coaxial planetary stages to reach 300:1 ratio from a single housing – eliminating the penalty of mounting two separate gearboxes in series. The factory-preset output bearing pre-load ensures the large-diameter output flange bearing carries combined sprocket chain loads (radial), sprocket offset loads (axial) and overturning moment loads without any play developing over the rated service life.
The optional condition monitoring sensor suite includes a PT100 temperature probe boss in the oil sump and an M8-threaded accelerometer mounting pad on the housing flange. Data from these sensors can be streamed to any PLC or SCADA system, enabling trending and predictive replacement scheduling – reducing unplanned downtime costs significantly on large high-value machines.
المزايا الأساسية
| ★ 37,000 Nm Class-Leading Torque Top of the CTU replacement series – handles the largest tracked machine requirements without compromise. |
★ 300:1 in a Single Unit No tandem gearbox penalty – saves weight, installation length and maintenance points. |
| ★ جاهز لمراقبة الحالة Oil temperature and vibration sensor ports enable full predictive maintenance integration. |
★ 3.0x Momentary Overload Handles worst-case rock impact and stump strike loads without gear tooth damage. |
| ★ C5M Marine Epoxy Coating + IP68 Full offshore and mine-site corrosion protection. Suitable for saltwater environments and acid mine drainage zones. |
|
تكنولوجيا الهياكل والمواد
The EP-CTU3700 uses فولاذ 18CrNiMo7-6 المعاد صهره بالقوس الكهربائي الفراغي (VAR) – the highest available grade for planetary gear applications – carburised to 1.0-1.5 mm and ground to DIN ISO 1328 accuracy class 5. The housing interior is shot-peened to improve fatigue resistance in the gear bore areas. All external fasteners are stainless steel A4-80 grade to prevent galvanic corrosion in wet and chemically contaminated mine environments. The output flange uses a large-bore taper roller bearing assembly factory-shimmed for zero play under full rated combined load.
سيناريوهات التطبيق النموذجية
| صناعة | Machine Type | Why CTU3700 Class |
|---|---|---|
| التعدين | 80 t+ hydraulic excavator | Class-leading torque handles hard-rock bench digging without gear tooth damage. |
| رافعة | Large crawler crane undercarriage | 300:1 ratio for ultra-slow boom erection travel on soft ground. |
| Tunnelling | TBM backup crawler system | Continuous slow push against tunnel lining; condition monitoring tracks motor health 24/7. |
| في عرض البحر | Jack-up rig leg drive | High torque + predictive monitoring minimises rig downtime on remote offshore location. |
دليل الاختيار
- Machine Class (operating weight, t) – Key input for required drawbar torque calculation.
- النسبة المطلوبة – 3-stage for 40:1-120:1; 4-stage for 120:1-300:1.
- مراقبة الحالة – Specify if PT100 oil temp probe and vibration sensor boss are required.
- واجهة المحرك – Provide hydraulic motor model and shaft dimension drawing.
- بيئة – Acid mine drainage, saltwater, low temperature; each requires specific seal and coating upgrade.
- هيئة التصنيف – For offshore use, state DNV, BV or ABS witnessing requirement at order.
Engage EVER POWER’s senior application engineers for a complete drive package study.
Brevini CTU3700 vs. EVER POWER EP-CTU3700
تنصل: EVER POWER references the Brevini riduttori CTU3700 model number solely to help customers identify a compatible replacement. We do not manufacture or imply affiliation with Brevini. No intellectual property of Brevini is reproduced. Our replacement unit is an independently designed product that is dimensionally and functionally compatible.
| وجه | Brevini CTU3700 | EVER POWER EP-CTU3700 |
|---|---|---|
| سعر | High-end European OEM | انخفاض كبير في التكلفة الإجمالية للملكية |
| مهلة | 14-22 أسبوعًا | 5-8 أسابيع |
| Max Ratio (single unit) | نطاق قياسي | Up to 300:1 |
| مراقبة الحالة | غير قياسي | منافذ الاستشعار خيار قياسي |
| تفتيش جمعية التصنيف | Available at premium | DNV/BV/ABS available at competitive rate |
| Acid Mine Drainage | Standard coating only | Upgraded A4-80 fasteners + C5M coating |
EVER POWER supplies matched high-torque hydraulic travel motors for the EP-CTU3700 as a complete certified drive package. Enquire now.
شهادات الجودة والالتزام بالخدمة
- ISO 9001:2015 – Material traceability to VAR melt certificate level.
- علامة CE – Machinery Directive 2006/42/EC compliant.
- DNV GL / Bureau Veritas inspection متوفر عند الطلب.
- ضمان لمدة 18 شهرًا من تاريخ الشحن.
- Dedicated account engineer for registered large-machine customers.
- Emergency spare part sets (sun shafts, planet sets, seal kits) stocked for priority dispatch.
يزور إيفر باور - نبذة عنا for our full company and quality profile.
دراسات حالة – ملاحظات ميدانية للمهندسين
| دولة | طلب | تعليق |
|---|---|---|
| أستراليا | 85 t excavator fleet at iron ore mine, Pilbara – 6 units | “Hard magnetite rock generates brutal peak loads. The 3.0x overload rating has prevented the tooth damage we used to see every 3,000 hours. After 14 months: zero gearbox failures.” – Equipment Director, Port Hedland. |
| ألمانيا | Large crawler crane undercarriage renewal for wind farm construction | “300:1 ratio let us use standard displacement motors already on fleet, eliminating a separate motor procurement. EVER POWER dimensioned the unit within 2 days of receiving our crane drawing.” – Project Manager, Hamburg. |
| جنوب أفريقيا | Platinum mine jack-up platform leg drive, deep level | “Acid mine water is the enemy of any steel component. The A4-80 fasteners and C5M coating have held up perfectly after 18 months. Condition monitoring data showed us a bearing trend 3 weeks before it would have failed.” – Mine Engineer, Rustenburg. |
الأسئلة الشائعة
Q: What is the maximum sprocket chain load the output flange bearing handles?
A: The large-bore taper roller bearing is rated for a combined radial/axial load of 280 kN at rated output torque. Contact us with your sprocket geometry for a specific bearing life calculation.
Q: Can the condition monitoring data be streamed to our existing Modbus SCADA?
A: Yes. The PT100 probe and accelerometer connect to standard signal conditioners compatible with Modbus, PROFIBUS or 4-20 mA analogue – compatible with all major PLC brands. EVER POWER can supply the sensor and wiring loom on request.
Q: How does the 18-month warranty compare to Brevini’s?
A: Brevini typically offers 12 months in most markets. EVER POWER provides 18 months as standard, with extended warranty available under a service agreement. Terms are clear and documented with each unit delivery.
تعاون مع إيفر باور
For the world’s most demanding tracked machine applications, EVER POWER delivers engineering quality, material integrity and production reliability. Browse our complete CTU replacement rangeتعرّف على قدرات إيفر باور، أو اتصل بفريقنا الهندسي الآنالصفحة الرئيسية: planetary-gear-box.top
