Description
EP-RPR3250 Planetary Gearbox
EVER POWER 3-Stage 42,000 Nm Planetary Gearbox with Ultra-High Ratio
Le EP-RPR3250 raises output torque to 42,000 Nm and extends ratio coverage to 200:1 by adding a third stage to the RPR250 housing. Replacing the Brevini riduttori RPR3250, this unit covers the most demanding segment of the RPR250 size class ?? slow-speed heavy crane drives, large offshore mooring winch main drives, heavy mixer main drives and industrial kiln drives where very high torque and very slow output speed are simultaneously required.
Paramètres techniques
| Paramètre | Valeur |
|---|---|
| Modèle | EP-RPR3250 |
| Remplace | Brevini riduttori RPR3250 |
| Couple de sortie maximal | 42,000 Nm |
| Étapes d'engrenage | 3 |
| Plage de ratios | 28:1 – 200:1 |
| Vitesse d'entrée maximale | 2,500 rpm |
| Classe de protection | IP66 |
| Poids approximatif | ~95 kg |
Principe de fonctionnement
The 3-stage architecture provides a cumulative 200:1 ratio from a single housing. The 4-planet output carrier distributes final stage torque across four simultaneous contact points rather than the standard three, reducing per-tooth stress by 25% at 42,000 Nm. A dual lip seal with intermediate grease pocket at the output shaft provides redundant sealing against the high-viscosity gear oils used at this torque class.
Principaux avantages
|
▲ 200:1 Ultra-High Ratio
Single housing replaces tandem gearbox arrangements for extreme reduction ratios. |
▲ 4-Planet Output Stage
25% lower tooth stress ?? extended fatigue life under repeated peak loads. |
|
▲ VAR Steel Output Stage
Aircraft-grade steel in output gears ?? maximum fatigue life at 42,000 Nm. |
▲ Dual Lip + Grease Pocket
Redundant output shaft sealing for long seal life with high-viscosity oils. |
|
▲ Direct RPR3250 Replacement
Same flange and port layout. |
Technologie des structures et des matériaux
Output stage planet gears use 18CrNiMo7-6 vacuum-arc-remelted (VAR) steel ?? the highest available grade ?? for maximum fatigue life at 42,000 Nm. Housing is GGG70 nodular iron with shot-peened bore zones for improved fatigue resistance. External coating is C5M marine epoxy (720-hour salt spray) for offshore and coastal installations.
Scénarios d'application typiques
| Industrie | Application | Exigence clé |
|---|---|---|
| Crane | Heavy slewing crane main travel drive | 200:1 ratio allows low-speed precise positioning with standard large hydraulic motor. |
| Offshore | Mooring winch main drive | 4-planet output stage handles repeated peak mooring loads without tooth damage. |
| Industrial | Large industrial kiln drive | Very slow rotation (1-3 rpm) of multi-tonne kiln shell requires 200:1 ratio. |
| Mixing | Large industrial agitator | 42,000 Nm handles thick material mixing without stall at startup. |
Guide de sélection
- Couple de sortie requis (Nm) ?? Confirmer les exigences de couple maximal et continu avec un facteur de sécurité approprié.
- Rapport de transmission ?? Vitesse du moteur (tr/min) divisée par la vitesse de sortie requise (tr/min).
- Cycle de service ?? S1 continu ou S3/S6 intermittent ; affecte la réduction de puissance thermique.
- Interface moteur ?? Type de bride (SAE/ISO), diamètre de l'arbre, spécification de rainure de clavette ou de cannelure.
- Environnement ?? Classe IP, température ambiante, zone de corrosion, orientation.
Contactez notre équipe d'ingénierie pour une évaluation gratuite de la taille de votre application.
Brevini RPR3250 vs. EVER POWER EP-RPR3250
Avis important : EVER POWER references the Brevini riduttori RPR3250 model number solely to assist customers in identifying a compatible replacement. We do not manufacture, sell, or claim any affiliation with Brevini. No trademarks or intellectual property of Brevini are reproduced or infringed. Our EP-RPR3250 is an independently designed and manufactured product that is dimensionally and functionally compatible.
| Aspect | Brevini RPR3250 | EVER POWER EP-RPR3250 |
|---|---|---|
| Prix | High OEM rate | Compétitif |
| Délai de mise en œuvre | 10-18 weeks | 4-6 weeks |
| Output Stage Steel | Standard alloy | VAR steel standard |
| Max Ratio | Standard | 200:1 single unit |
| Garantie | 12 mois | 18 mois |
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 on all EP-RPR3250 units.
- Intervention technique sous 48 heures pour les problèmes rencontrés sur le terrain.
- Pièces de rechange et kits de joints en stock pour une expédition rapide.
Pour en savoir plus, consultez EVER POWER À propos de nous.
Études de cas ? Notes de terrain d'ingénieur
| Pays | Application | Retour |
|---|---|---|
| UAE | Heavy slewing crane main drive, construction port | “200:1 ratio in a single housing eliminated the two-stage gearbox arrangement we had before. Space saving on the crane deck was considerable.” ?? Project Engineer, Abu Dhabi. |
| Norvège | Offshore mooring winch, PSV conversion | “4-planet output stage has handled repeated peak mooring loads that destroyed our previous 3-planet unit. 14 months and counting with no failures.” ?? Chief Engineer, Bergen. |
| Allemagne | Large industrial kiln drive, cement plant | “VAR steel documentation was required by our process insurance auditor. EVER POWER provided the full melt certificate within 5 days.” ?? Technical Manager, Dusseldorf. |
Foire aux questions
Q: Can a standard 3-planet output stage be specified to reduce cost?
A: Yes. A standard 3-planet output variant is available at reduced cost ?? recommended for intermittent duty applications where peak torque is less frequent.
Q: Is the VAR steel documentation available for third-party audits?
A: Yes. Full melt traceability certificates are provided with every EP-RPR3250 as standard.
Devenez partenaire d'EVER POWER
EVER POWER accompagne les constructeurs de machines OEM, les entreprises d'ingénierie et les équipes de maintenance du monde entier. Consultez notre catalogue gamme de remplacement complète, explorer nos capacités de fabrication, ou Contactez-nous aujourd'hui Pour obtenir un devis rapide, rendez-vous sur notre site web. boîte-d'engrenages-planétaire.top pour la gamme complète EVER POWER.
