الوصف
EP-EQ4255 4-Stage Ultra-High Ratio Planetary Gearbox
Brevini Riduttori EQ4255 Compatible Replacement | EVER POWER
The EQ4-series achieves ratio ranges up to 500:1 in a single housing by stacking four planetary stages ?? the highest reduction option in the EC/EM family. Designed for very slow-speed drives, large industrial positioning systems, antenna and telescope slew drives, kiln and furnace car drives, and large-scale material handling applications where output speed is measured in RPM fractions and maximum torque is non-negotiable.
The EP-EQ4255 replaces the Brevini riduttori EQ4255 ?? a 4-stage planetary gearbox delivering approximately 119,000 Nm output torque, ratio range 50:1 – 500:1, and IP rating IP66.
المعايير الفنية
| المعلمة | قيمة |
|---|---|
| نموذج | EP-EQ4255 |
| يستبدل | Brevini riduttori EQ4255 |
| Output Torque | 119,000 Nm |
| مراحل التروس | 4 |
| نطاق النسبة | 50:1 – 500:1 |
| أقصى سرعة إدخال | 3,000 rpm |
| كفاءة | >= 92% |
| فئة الحماية | IP66 |
| الوزن التقريبي | ~627 kg |
مبدأ العمل
Four coaxial planetary stages cascade speed reduction and torque multiplication. Stage 1 handles the high-speed motor input; each successive stage multiplies torque while halving speed. The 4-stage design uses a dual-seal output shaft arrangement ?? a primary FKM lip seal plus a labyrinth ?? providing redundant protection against dust and slurry ingress in the slow-speed, high-torque industrial environments where EQ4 units are most commonly deployed.
المزايا الأساسية
|
● Up to 500:1 Single Housing
Eliminates tandem gearbox arrangements for extreme ratios. |
● Dual-Seal Output Shaft
Primary FKM seal plus labyrinth ?? redundant ingress protection. |
|
● IP66 Standard Sealing
Outdoor and wet industrial environment rated. |
● 4-Stage Torque Density
Maximum torque for given housing size in the EC/EM range. |
|
● Direct EQ4-Series Replacement
Identical flange and port dimensions. |
تكنولوجيا الهياكل والمواد
All four stages use 17CrNiMo6 carburised and ground steel gears. Output stage planet journals run on needle roller bearings with hardened pins for maximum radial stiffness. The housing is cast from حديد مطاوع GGG50 with H7 bore tolerances throughout. External coating is epoxy-chromate primer for C4 corrosion zone service.
سيناريوهات التطبيق النموذجية
| صناعة | طلب | Key Benefit |
|---|---|---|
| Offshore | Large AHC winch main drive | High torque and ratio for active heave compensation. |
| التعدين | SAG mill drive | Extreme continuous torque for semi-autogenous grinding mill. |
| Marine | Large propeller shaft drive | Reliable low-speed drive for large vessel shaft systems. |
| Sugar | Sugar mill crushing drive | Very high torque at slow speed for sugar cane crushing. |
دليل الاختيار
- Required Output Torque (Nm) ?? Confirm peak and continuous with safety factor (1.3-2.0 typical).
- Gear Ratio ?? Motor speed (rpm) / required output speed (rpm).
- Stage Count ?? 4-stage (4-stage) provides ratio 50:1 – 500:1.
- واجهة المحرك ?? Flange type (SAE/ISO metric), shaft diameter and key.
- بيئة التشغيل ?? IP class, ambient temperature, mounting orientation.
Contact our engineers for a free application sizing review.
Brevini EQ4255 vs. EVER POWER EP-EQ4255
Notice: EVER POWER references Brevini riduttori EQ4255 solely for customer cross-reference. We are not affiliated with Brevini. Our EP-EQ4255 is an independently designed product that is dimensionally and functionally compatible. No Brevini trademarks or intellectual property are reproduced.
| وجه | Brevini EQ4255 | EVER POWER EP-EQ4255 |
|---|---|---|
| سعر | OEM European premium | Competitive ?? 30-45% saving typical |
| Lead Time | 6-16 weeks depending on size | 2-6 weeks |
| مراحل التروس | 4 | 4 |
| Warranty | 12 months standard | 18 months standard |
| التخصيص | Limited | يتم قبول رسومات OEM/ODM |
EVER POWER also supplies matched electric and hydraulic motors for complete drive system packages. Enquire about motor pairing.
شهادات الجودة والالتزام بالخدمة
- ISO 9001:2015 certified manufacturing and quality management.
- علامة CE ?? EU Machinery Directive 2006/42/EC compliant.
- ضمان لمدة 18 شهرًا from shipment date covering all EP-EQ4255 manufacturing defects.
- 48-hour technical response for field issues.
- Seal kits and wear parts stocked for rapid dispatch.
Learn more at إيفر باور - نبذة عنا.
Case Studies ?? Engineer Field Notes
| دولة | طلب | Customer Feedback |
|---|---|---|
| UAE | Cement mill main drive, large plant | “Extreme torque requirement met. CE documentation accepted by our local regulator without question.” ?? Plant Director, Abu Dhabi. |
| Australia | Large mining excavator travel drive, iron ore mine | “Class-leading torque handled the hardest magnetite bench conditions without overload.” ?? Equipment Director, Pilbara. |
| Netherlands | Ship thruster drive, heavy offshore vessel | “EVER POWER delivered on a very tight shipyard schedule. The gearbox was dimensionally exact.” ?? Marine Engineer, Rotterdam. |
الأسئلة الشائعة
Q: What is the minimum output speed achievable?
A: With a 3,000 rpm input and the 500:1 maximum ratio, minimum output speed is 6 rpm. Lower speeds require a proportional reduction in input speed.
Q: Can the EQ4-series handle reversing loads?
A: Yes. All four stages are rated for equal forward and reverse torque. Fatigue life calculations assume 50/50 direction split.
تعاون مع إيفر باور
EVER POWER supports OEM machine builders and maintenance teams worldwide. Browse our full replacement range, explore our capabilities, or contact us today for a fast quotation. Visit planetary-gear-box.top.
