Description
EP-EQ4250 4-Stage Ultra-High Ratio Planetary Gearbox
Brevini Riduttori EQ4250 Compatible Replacement | EVER POWER
Le 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.
Le EP-EQ4250 replaces the Brevini riduttori EQ4250 ?? a 4-stage planetary gearbox delivering approximately 112,000 Nm output torque, ratio range 50:1 – 500:1, and IP rating IP66.
Paramètres techniques
| Paramètre | Valeur |
|---|---|
| Modèle | EP-EQ4250 |
| Remplace | Brevini riduttori EQ4250 |
| Output Torque | 112,000 Nm |
| Étapes d'engrenage | 4 |
| Plage de ratios | 50:1 – 500:1 |
| Vitesse d'entrée maximale | 3,000 rpm |
| Efficacité | >= 92% |
| Classe de protection | IP66 |
| Poids approximatif | ~579 kg |
Principe de fonctionnement
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.
Principaux avantages
|
● 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. |
Technologie des structures et des matériaux
All four stages use Acier cémenté et rectifié 17CrNiMo6 gears. Output stage planet journals run on needle roller bearings with hardened pins for maximum radial stiffness. The housing is cast from fonte ductile GGG50 with H7 bore tolerances throughout. External coating is epoxy-chromate primer for C4 corrosion zone service.
Scénarios d'application typiques
| Industrie | Application | Avantage clé |
|---|---|---|
| Cement | Cement mill main drive | Extreme torque for continuous ball mill grinding operations. |
| Exploitation minière | Large excavator travel drive | High torque for large tracked mining excavator travel. |
| Marin | Ship thruster drive | Reliable drive for large Azimuth propulsion thruster units. |
| Steel | Primary rolling mill main drive | Extreme torque for primary slab and bloom rolling. |
Guide de sélection
- Couple de sortie requis (Nm) ?? Confirm peak and continuous with safety factor (1.3-2.0 typical).
- Rapport de transmission ?? Motor speed (rpm) / required output speed (rpm).
- Nombre d'étapes ?? 4-stage (4-stage) provides ratio 50:1 – 500:1.
- Interface moteur ?? Flange type (SAE/ISO metric), shaft diameter and key.
- Environnement d'exploitation ?? IP class, ambient temperature, mounting orientation.
Contact our engineers pour une évaluation gratuite de la taille de votre application.
Brevini EQ4250 vs. EVER POWER EP-EQ4250
Notice: EVER POWER references Brevini riduttori EQ4250 solely for customer cross-reference. We are not affiliated with Brevini. Our EP-EQ4250 is an independently designed product that is dimensionally and functionally compatible. No Brevini trademarks or intellectual property are reproduced.
| Aspect | Brevini EQ4250 | EVER POWER EP-EQ4250 |
|---|---|---|
| Prix | OEM European premium | Competitive ?? 30-45% saving typical |
| Délai de mise en œuvre | 6-16 weeks depending on size | 2-6 weeks |
| Étapes d'engrenage | 4 | 4 |
| Garantie | 12 mois standard | 18 mois standard |
| Personnalisation | Limited | Dessins OEM/ODM acceptés |
EVER POWER fournit également moteurs électriques et hydrauliques adaptés pour les systèmes d'entraînement complets. Renseignez-vous sur le jumelage des moteurs.
Certifications de qualité et engagement de service
- ISO 9001:2015 Fabrication certifiée et gestion de la qualité.
- Marquage CE Conforme à la directive européenne 2006/42/CE relative aux machines.
- Garantie de 18 mois from shipment date covering all EP-EQ4250 manufacturing defects.
- 48-hour technical response for field issues.
- Seal kits and wear parts stocked for rapid dispatch.
Pour en savoir plus, consultez EVER POWER À propos de nous.
Études de cas ? Notes de terrain d'ingénieur
| Pays | Application | Commentaires des clients |
|---|---|---|
| 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. |
| Pays-Bas | Ship thruster drive, heavy offshore vessel | “EVER POWER delivered on a very tight shipyard schedule. The gearbox was dimensionally exact.” ?? Marine Engineer, Rotterdam. |
Foire aux questions
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.
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