Description
EP-RPR3320 Planetary Gearbox
EVER POWER 3-Stage 55,000 Nm Planetary Gearbox for Ultra-Heavy Industrial Drives
Le EP-RPR3320 is one of EVER POWER’s highest-torque RPR series units, delivering 55,000 Nm with a ratio range extending to 220:1 from a 3-stage planetary housing. Replacing the Brevini riduttori RPR3320, this unit serves the most demanding segment of heavy process engineering ?? cement mill main drives, large ship thrusters, heavy ore processing equipment, large industrial centrifuge drives and ultra-heavy agitator systems.
Paramètres techniques
| Paramètre | Valeur |
|---|---|
| Modèle | EP-RPR3320 |
| Remplace | Brevini riduttori RPR3320 |
| Couple de sortie maximal | 55,000 Nm |
| Étapes d'engrenage | 3 |
| Plage de ratios | 30:1 – 220:1 |
| Vitesse d'entrée maximale | 2,200 rpm |
| Classe de protection | IP67 |
| Poids approximatif | ~135 kg |
Principe de fonctionnement
Three stages of large-module planetary gearing cascade torque multiplication to the output. The double-wall housing construction ?? an inner structural ring plus outer seal housing ?? provides maximum rigidity against the gear separation forces generated at 55,000 Nm, preventing the housing bore distortion that can occur in single-wall designs and lead to ring gear fretting. The output shaft is a forged hollow quill shaft accepting direct coupling to large hollow-bore driven machines.
Principaux avantages
|
◼ 55,000 Nm Class Torque
One of the highest torque ratings in the RPR series. |
◼ VAR Steel Throughout All Stages
Full VAR build ?? not just output stage ?? maximum fatigue life at every gear contact. |
|
◼ Double-Wall Housing
Prevents bore distortion under 55,000 Nm continuous loading. |
◼ Hollow Quill Shaft Output
Direct coupling to large hollow-bore driven shafts without separate coupling. |
|
◼ Direct RPR3320 Replacement
Matching flange dimensions. |
Technologie des structures et des matériaux
All gear stages use 18CrNiMo7-6 VAR steel throughout ?? not just the output stage. Carburising depth is 1.1-1.5 mm across all stages; tooth profiles are ground to ISO 1328 class 5. The double-wall housing is cast from GGG70 nodular iron and stress-relieved before final machining. Output shaft bearing is a large-bore spherical roller bearing pair for self-aligning load support on large hollow quill shaft installations.
Scénarios d'application typiques
| Industrie | Application | Exigence clé |
|---|---|---|
| Cement | Cement ball mill main drive | 55,000 Nm sustained over 8,000 hours/year ?? requires VAR steel for fatigue life. |
| Marin | Large Azimuth thruster drive | 220:1 ratio provides slow reliable thrust direction change. |
| Exploitation minière | Large ore SAG mill drive | Double-wall housing prevents bore distortion under continuous high-torque loading. |
| Chemical | Ultra-heavy agitator, polymer reactor | Hollow quill shaft allows direct drive coupling to agitator shaft. |
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 RPR3320 vs. EVER POWER EP-RPR3320
Avis important : EVER POWER references the Brevini riduttori RPR3320 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-RPR3320 is an independently designed and manufactured product that is dimensionally and functionally compatible.
| Aspect | Brevini RPR3320 | EVER POWER EP-RPR3320 |
|---|---|---|
| Prix | Very high OEM rate | Competitive on large-unit basis |
| Délai de mise en œuvre | 12-20 weeks | 5-8 weeks |
| Steel Grade | Standard in stages 1-2 | VAR throughout all stages |
| Housing | Single wall | Double wall anti-distortion |
| 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-RPR3320 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 |
|---|---|---|
| Turkey | Cement ball mill main drive, large plant | “55,000 Nm sustained duty with 8,000+ annual operating hours. After 2 years ?? no detectable gear wear at the scheduled inspection. VAR steel is clearly worth the investment.” ?? Plant Director, Ankara. |
| Denmark | Large Azimuth thruster, offshore supply vessel | “220:1 ratio for our thruster direction change mechanism. The hollow quill shaft made coupling to our azimuth ring gear straightforward.” ?? Lead Engineer, Copenhagen. |
| Chili | SAG mill drive, large copper mine | “Double-wall housing was the deciding factor after our previous single-wall unit developed housing bore fretting at 18,000 hours. EP-RPR3320 has now exceeded 20,000 hours without bore distortion.” ?? Mine Engineer, Calama. |
Foire aux questions
Q: What is the maximum rated input power?
A: At the standard 2,200 rpm input and 55,000 Nm output, the maximum rated input power is approximately 180 kW continuous. Higher power variants are available for specific applications ?? contact our engineering team.
Q: Can the hollow quill shaft be replaced with a solid output shaft?
A: Yes. A solid output shaft variant is available at the same lead time. Specify at order.
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.
