Description
Réducteur combiné hélicoïdal-à vis sans fin EPPC090/NMRV063
The EPPC090/NMRV063 pairs the larger 90 mm helical pre-stage with a 63 mm NMRV worm main stage, delivering 225 Nm rated output torque at an elevated 3.0 kW pre-stage input-power capacity. This configuration targets bulk-handling conveyor drives at Australian terminal operations, demanding duty-cycle reducers at mining circuit feed stations, and continuous-duty packaging equipment where the larger pre-stage provides significant thermal headroom. The 17.9 kg aluminium-housed assembly delivers the torque envelope of heavier cast-iron alternatives at approximately one-third the weight.
EPPC090/NMRV063 Specifications
Full technical data for the EPPC090/NMRV063 helical-worm combined reducer. Values are verified at end-of-line dynamometer test and retained on serial-number record for five years. Non-standard shaft modifications, food-grade lubricant fills, and mounting-position variations are available on request through our engineering desk.
| Spécification | Valeur |
|---|---|
| Désignation du modèle | EPPC090/NMRV063 |
| Configuration | Réducteur combiné à ver hélicoïdal (pré-étage hélicoïdal + étage principal à ver NMRV) |
| Type de pré-étape | PC090 helical gear pre-stage (approximately 96 percent efficient) |
| Type de scène principale | étage principal du réducteur à vis sans fin NMRV063 |
| Distance centrale | 90 + 63 mm |
| Couple de sortie nominal | 225 Nm |
| Plage de rapport combiné | 10:1 à 700:1 |
| Efficacité mécanique combinée | approximately 80 percent |
| Vitesse de l'arbre de sortie (entrée 4 pôles 1 400 tr/min) | 2,0 – 140 tr/min |
| Puissance d'entrée du préétage (max) | 3.0 kW |
| Alésage de sortie (arbre creux) | 25 mm |
| diamètre de l'arbre de sortie (arbre plein) | 25 mm |
| capacité de charge radiale de sortie | 3250 N |
| Bride moteur – NEMA | 140TC / 180TC |
| Bride moteur – IEC | B5 |
| Matériau du boîtier | Alliage d'aluminium moulé sous pression ADC12 (les deux étapes) |
| matériau pour engrenages hélicoïdaux | Acier allié cémenté 20CrMnTi, rectifié |
| matériau de la tige de vis sans fin | Acier allié cémenté 20CrMnTi, rectifié, grade ISO 6 |
| matériau de roue à vis sans fin | Coulée centrifuge en bronze à l'étain CuSn12 |
| Lubrifiant | Huile synthétique PAG ISO VG 320 (remplissage en usine, chambre partagée) |
| joints d'arbre | Joints à double lèvre en Viton (FKM) |
| Protection contre les infiltrations | IP55 (mise à niveau labyrinthe disponible) |
| Positions de montage | B3, B6, B7, B8, V5, V6 |
| Poids assemblé | 17.9 kg |
Engineering Features of the EPPC090/NMRV063
Six core design characteristics that distinguish the helical-worm combined EPPC090/NMRV063 from alternative two-stage worm reducer constructions. Each feature below is grounded in an operational constraint that Australian OEM specifiers raise during technical qualification.
Indice de protection IP55
Les deux étages sont conformes à l'indice de protection IP55 de série. Un joint labyrinthe pour l'arbre de sortie est disponible en option pour les environnements poussiéreux, notamment dans les mines et les installations de manutention de céréales. Une peinture marine est appliquée de série sur les unités destinées aux terminaux côtiers de stockage en vrac.
Brides de moteur IEC et NEMA
L'interface moteur du préétage hélicoïdal accepte les moteurs à bride IEC B5 ou B14 ainsi que les moteurs à bride NEMA 56C, 140TC, 180TC et 210TC, selon la taille du bâti du préétage. Cette double compatibilité simplifie l'approvisionnement en moteurs pour les clients australiens et internationaux.
Six Mounting Orientations
Factory-supported mounting positions B3, B6, B7, B8, V5 and V6. Declared mounting orientation at order stage sets the factory oil-fill volume calibration. Vertical mounts receive additional oil volume to ensure both the helical pre-stage and worm main-stage engagement surfaces remain properly submerged.
100% End-of-Line Dynamometer Testing
Every combined unit is tested on a closed-loop dynamometer across the catalogue torque range before shipment. Noise measurement in a semi-anechoic booth, sump-temperature rise monitored during run-in, and combined efficiency verified against catalogue specification. Test record is retained per serial number for five years.
Helical Pre-Stage Efficiency
Case-hardened helical gear set in the pre-stage delivers approximately 96 percent stage efficiency, substantially higher than the 75 to 85 percent typical of a worm pre-stage. Combined with the NMRV main stage, the full drive train achieves 78 to 80 percent mechanical efficiency against 50 to 70 percent for a two-stage worm equivalent.
Higher Input Power Density
The helical pre-stage accepts higher motor input power than a comparable worm pre-stage at the same envelope size, enabling 0.55 to 7.5 kW input across the frame range. This allows a compact combined unit to drive applications that would otherwise require a substantially larger two-stage worm reducer.
Typical EPPC090/NMRV063 Applications Across Australia
The EPPC090/NMRV063 is specified across five primary Australian industry sectors. The descriptions below reflect real installations where the helical pre-stage efficiency advantage over a two-stage worm configuration provides measurable operating-cost benefit or thermal-envelope relief.
Exploitation minière et traitement des minéraux
In mining and minerals-processing service, the EPPC090/NMRV063 drives ore-sample screw feeders, slow-speed cone-crusher auxiliary reducers and tailings-pond skimmer drives at Pilbara, Kalgoorlie and central Queensland operations. The helical pre-stage provides improved impact-load tolerance compared to worm-only pre-stages – relevant on screen-drive and feeder applications where intermittent shock loading is normal. Labyrinth-seal output upgrade and marine-grade paint are both specified as standard on units destined for tropical-coastal bulk-terminal installations.
Manutention et logistique
For material handling and logistics duty, the EPPC090/NMRV063 is specified into continuous-duty roller-conveyor drives, pallet-transfer indexing units and bulk-terminal belt-tensioning reducers at Australian DC operations. The helical pre-stage delivers approximately 80 percent combined mechanical efficiency, substantially higher than the 50 to 70 percent typical of two-stage worm arrangements. At continuous operation this translates to meaningful electrical-energy savings and reduced heat load inside enclosed conveyor cabinets – particularly relevant on 24/7 three-shift Sydney and Melbourne distribution centres.
Transformation des aliments et des boissons
In food and beverage processing applications, the EPPC090/NMRV063 powers bottling-line spindle drives, palletiser-cell indexing reducers and CIP-tolerant processing conveyors at Australian dairies, craft breweries and meat processors. The higher combined efficiency of the helical pre-stage compared to a two-stage worm configuration matters here because these lines run continuously for long campaigns. Food-grade H1 synthetic lubricant fill is available as a factory option, with stainless fasteners and washdown-tolerant paint on request.
Traitement environnemental et de l'eau
For environmental and water-treatment service, the EPPC090/NMRV063 drives screw-conveyor sludge transport, slow-speed grit-classifier augers and DAF skimmer reducers at municipal and private industrial plants across regional Australia. The IP55 housing and viton lip-seal package handle the corrosive splash environment of chlorination and caustic-dosing zones. The helical pre-stage maintains efficient torque transmission across a wide input-rpm range, enabling VFD-driven variable-speed duty with stable output torque across the operating envelope.
Agriculture et production primaire
For agricultural and primary-production applications, the EPPC090/NMRV063 is deployed on poultry-house feed-conveyor drives, grain-handling screw-conveyor reducers and irrigation-pump clutch drives on NSW, Victorian and Queensland rural operations. The helical pre-stage efficiency advantage over two-stage worm construction becomes significant where the reducer operates continuously for long periods – electrical consumption on a dairy-shed 24-hour feed line adds up, and the thermal envelope of the aluminium housing handles Queensland summer ambient without active cooling.
How to Specify the EPPC090/NMRV063 Correctly
Un réducteur combiné à vis sans fin hélicoïdale est préconisé lorsque la puissance d'entrée, le fonctionnement en continu ou le comportement thermique de l'armoire rendent le gain d'efficacité par rapport à un réducteur à deux étages équivalent significativement exploitable. Trois points sont essentiels : le couple de sortie requis, le rapport de réduction requis et la puissance d'entrée continue réelle du moteur au point de fonctionnement. Notre bureau d'études vérifie ces trois paramètres en fonction du profil de service du client avant de formuler une recommandation de dimensionnement.
1. Vérifier le couple de sortie
Required torque at the output must fall within the 225 Nm rating of the EPPC090/NMRV063. Apply an appropriate service factor (1.0 uniform / 1.25 moderate shock / 1.5 heavy shock) on the nominal load torque.
2. Définir le ratio combiné
Le régime moteur requis à la charge entraînée détermine le rapport de réduction. Les rapports de réduction disponibles s'étendent de 10:1 à 700:1 grâce à différents appariements de rapports entre l'étage de préamplification et l'étage principal. Spécifiez le régime moteur cible pour obtenir le rapport de réduction adapté.
3. Vérifier la puissance du moteur
Pre-stage input-power capacity is 3.0 kW maximum. Helical pre-stage efficiency (approximately 96 percent) allows smaller motor sizing than a two-stage worm equivalent for the same driven-load torque.
EPPC090/NMRV063 Technical Questions
The most common technical questions our engineering desk receives on the EPPC090/NMRV063 from Australian OEM design engineers, plant maintenance leads, and specification consultants. Additional questions are welcome by email to our engineering team.
What certifications does the EPPC090/NMRV063 carry?
Our quality management system is ISO 9001:2015 certified. The EPPC090/NMRV063 carries CE conformity for export markets, RoHS material compliance, and IP55 ingress-protection testing. Certificates of conformity are issued with every shipment and individual-serial-number test records are retained at the factory for five years. Application-specific certifications such as ATEX are available on a project-configured basis.
Are custom shaft modifications available?
Custom output-shaft lengths, non-standard keyways, double-extended output shafts for dual-drive arrangements, and shaft-end protective covers are all available on the main-stage output. Minimum-quantity requirements apply for non-catalogue shaft variants. Drawing-level specification is exchanged with our engineering desk during the quotation stage.
Pouvez-vous fournir des variantes de qualité alimentaire ou résistantes au lavage ?
USDA H1-rated synthetic lubricant factory fill, stainless-steel fastener upgrade, and washdown-tolerant paint systems for daily caustic CIP exposure are all available on request. Specify the requirement at quotation so the factory can configure the correct lubricant, seal elastomer compatibility, and surface finish across both the helical pre-stage and NMRV main stage housings.
What combined efficiency does the EPPC090/NMRV063 achieve?
Combined mechanical efficiency of the EPPC090/NMRV063 is approximately 80 percent across the normal operating range, the product of the helical pre-stage (approximately 96 percent) and the NMRV worm main stage (78 to 85 percent depending on the main ratio). This is substantially higher than the 50 to 70 percent typical of two-stage worm arrangements, translating to measurable motor-electrical consumption savings on continuous-duty applications.
When would I choose the EPPC090/NMRV063 over a two-stage worm reducer?
Specify the EPPC090/NMRV063 when: input power is above 0.5 kW and electrical consumption matters, continuous-duty operation is the norm (conveyors, processing lines), impact loading or frequent starts stress the drive train, or thermal headroom in enclosed cabinet installations is constrained. Choose a two-stage worm when very high combined ratios above 700:1 are required, since the helical pre-stage cannot reach the ultra-high ratios of a two-stage worm configuration.
Is the output self-locking on the EPPC090/NMRV063?
L'étage principal à vis sans fin conserve la caractéristique d'autoblocage typique des engrenages à vis sans fin à fort rapport de réduction. Pour la plupart des rapports de réduction supérieurs à environ 50:1, la sortie est autobloquante sous charge statique. Le pré-étage hélicoïdal seul ne s'autobloquerait pas, mais l'étage à vis sans fin en aval confère cette caractéristique à l'ensemble. L'autoblocage statique ne doit pas se substituer à un frein mécanique lorsque celui-ci est une exigence de sécurité.
What Engineers Say About the EPPC090/NMRV063
Avis clients vérifiés, provenant de clients du secteur de l'ingénierie australiens et internationaux. Les noms et les entreprises sont publiés avec leur autorisation. Le texte des avis est reformulé lorsque cela s'avère nécessaire afin de préserver la confidentialité des informations relatives aux projets.
The EPPC090/NMRV063 powers our new bottling-line spindle reducer after a capacity-expansion project. VFD-driven operation across a wide input-rpm range is the norm on our plant. The helical pre-stage handles the variable-frequency input cleanly, and the output-torque characteristic remains stable across the operating envelope. Installation-to-commissioning was straightforward using our existing IEC motor stock.
Specified the EPPC090/NMRV063 into our slow-indexing assembly-line rotary-table drives. The combined helical-worm construction delivered the self-locking output characteristic required at the application with a more compact envelope than our previous two-separate-reducer arrangement. Technical documentation supports our mechanical-engineering change-control process.
Running multiple EPPC090/NMRV063 units at our processing-line facility. The helical pre-stage efficiency advantage against two-stage worm alternatives has been validated against plant electrical consumption over the first operating year. Reliability through the Indian monsoon-season ambient has been consistent.
The EPPC090/NMRV063 supports our slow-speed processing-line conveyor drives for regional food-manufacturing customer markets. Input-power capacity at the helical pre-stage allowed a more compact mechanical envelope than the two-stage worm alternatives we evaluated. Documentation supports our export-market CE conformity compilation.
Integrated the EPPC090/NMRV063 into circulation-drive units for our fish-farm agitator product line. Corrosion resistance of the aluminium-housed construction handles the marine salt-air environment well. Helical pre-stage impact-load tolerance matters on circulation-drive start-up where water inertia loads the system momentarily.
Configurations combinées hélicoïdales-ver apparentées
Three related helical-worm combined reducers across different torque and input-power envelopes. If the EPPC090/NMRV063 is close but not exactly matched to your duty requirement, one of the alternatives below may deliver a better specification fit.
Consultez l'intégralité gamme combinée hélicoïdale-ver ou comparer avec le alternatives combinées à deux stades de développement des vers.
Ready to Specify the EPPC090/NMRV063?
Veuillez transmettre vos paramètres de cycle de service à notre bureau d'études australien pour obtenir des recommandations de dimensionnement, des options de moteurs compatibles et un devis précis. Les demandes techniques sont traitées par l'ingénieur responsable du produit, et non par un service commercial standard.
