Description
EP-RPR2255 Planetary Gearbox
EVER POWER 2-Stage Industrial Planetary Gearbox with Integrated Cooling Flange
Le EP-RPR2255 is a closely related variant to the RPR2250 series, incorporating an integrated cooling fin array on the output flange that increases passive heat dissipation by 18% versus a plain flange ?? a valuable feature for enclosed machinery installations where forced air cooling is not available. Replacing Brevini riduttori RPR2255, this unit delivers 26,500 Nm output torque for enclosed pump drives, marine gearrooms, underground machinery and thermally constrained industrial equipment.
Paramètres techniques
| Paramètre | Valeur |
|---|---|
| Modèle | EP-RPR2255 |
| Remplace | Brevini riduttori RPR2255 |
| Couple de sortie maximal | 26,500 Nm |
| Étapes d'engrenage | 2 |
| Plage de ratios | 22:1 – 90:1 |
| Vitesse d'entrée maximale | 2,800 rpm |
| Classe de protection | IP66 |
| Poids approximatif | ~70 kg |
Principe de fonctionnement
The 2-stage planetary layout is identical to the RPR2250 in gear geometry. The differentiating feature is the cooling fin flange ?? cast integrally into the output end bell, its extended surface area conducts frictional heat from the oil sump to ambient air by natural convection. In enclosed spaces, this passive cooling reduces steady-state oil temperature by 8-12 degC, extending synthetic lubricant service life proportionally.
Principaux avantages
|
◼ Integrated Cooling Fin Flange
18% more passive heat dissipation ?? reduces oil temperature 8-12 degC without external cooling. |
◼ Aluminium Fin + Iron Housing
Best of both materials ?? aluminium thermal conductivity, iron structural strength. |
|
◼ FKM High-Temp Seals
Synthetic oil service at up to 130 degC ?? suitable for hot enclosed installations. |
◼ 2-Stage High Efficiency
Minimises heat generation at source in thermally constrained installations. |
|
◼ Direct RPR2255 Replacement
Same mounting interface as original Brevini unit. |
Technologie des structures et des matériaux
Housing material is fonte ductile GGG50; the cooling fin flange is a separate EN-AC 46000 aluminium alloy casting bolted to the output end, combining aluminium’s superior thermal conductivity with the structural strength of the iron housing. Planet gears use 17CrNiMo6 carburised and ground steel. Seals are Fluoroélastomère FKM for high-temperature synthetic oil service.
Scénarios d'application typiques
| Industrie | Application | Exigence clé |
|---|---|---|
| Marin | Engine room pump drive, no external cooling | Fin flange provides essential passive cooling in enclosed engine room. |
| Underground | Mine dewatering pump drive | Passive cooling avoids need for forced-air ducting in confined drives. |
| Oil & Gas | Enclosed wellhead pump gearbox | 8-12 degC oil temperature reduction extends lubricant service interval. |
| Industrial | Printing press main drive in enclosed cabinet | Passive cooling maintains oil temperature within limits without cabinet fans. |
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 RPR2255 vs. EVER POWER EP-RPR2255
Avis important : EVER POWER references the Brevini riduttori RPR2255 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-RPR2255 is an independently designed and manufactured product that is dimensionally and functionally compatible.
| Aspect | Brevini RPR2255 | EVER POWER EP-RPR2255 |
|---|---|---|
| Prix | OEM premium | Compétitif |
| Délai de mise en œuvre | 8-14 weeks | 3 à 5 semaines |
| Cooling Fin Flange | Not standard | Integrated standard |
| Seal Grade | Standard NBR | FKM high-temp std |
| 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-RPR2255 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 |
|---|---|---|
| Singapore | Marine engine room pump drive, container vessel | “Engine room temperatures reach 48 degC. The fin flange dropped oil temperature by 11 degC, extending our oil change interval from 1,000 to 2,000 hours.” ?? Chief Engineer, Port of Singapore. |
| Afrique du Sud | Underground dewatering pump, gold mine | “No space for forced-air ducting. Passive cooling was the only viable option. EVER POWER’s fin flange solved the problem that had caused two competitors’ units to fail due to overheating.” ?? Mine Engineer, Johannesburg. |
| UK | Printing press main drive, enclosed cabinet | “Cabinet temperature regulation was always a problem. Fin flange solved it permanently ?? cabinet fan now runs at minimum speed only.” ?? Production Manager, Leeds. |
Foire aux questions
Q: Can the cooling fin flange be retrofitted to an existing EP-RPR2250?
A: No. The fin flange end bell is a different casting. It must be specified at order. The two housings are externally identical in mounting dimensions.
Q: What is the maximum ambient temperature for the cooling fin design?
A: The fin flange design maintains oil temperature below 90 degC at up to 50 degC ambient at rated load. Above 50 degC ambient, an oil-to-water cooler option is available.
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