Beskrivning
EP-EQ4255 4-Stage Ultra-High Ratio Planetary Gearbox
Brevini Riduttori EQ4255 Compatible Replacement | EVER POWER
De 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.
De EP-EQ4255 replaces the Brevini riduttori EQ4255 ?? a 4-stage planetary gearbox delivering approximately 119,000 Nm output torque, ratio range 50:1 – 500:1, and IP rating IP66.
Tekniska parametrar
| Parameter | Värde |
|---|---|
| Modell | EP-EQ4255 |
| Ersätter | Brevini riduttori EQ4255 |
| Output Torque | 119,000 Nm |
| Växelsteg | 4 |
| Förhållandeintervall | 50:1 – 500:1 |
| Max ingångshastighet | 3,000 rpm |
| Effektivitet | >= 92% |
| Skyddsklass | IP66 |
| Ungefärlig vikt | ~627 kg |
Arbetsprincip
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.
Kärnfördelar
|
● 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. |
Struktur och materialteknik
All four stages use 17CrNiMo6 karburerat och slipat stål gears. Output stage planet journals run on needle roller bearings with hardened pins for maximum radial stiffness. The housing is cast from GGG50 segjärn with H7 bore tolerances throughout. External coating is epoxy-chromate primer for C4 corrosion zone service.
Typiska tillämpningsscenarier
| Industri | Ansökan | Viktig fördel |
|---|---|---|
| Offshore | Large AHC winch main drive | High torque and ratio for active heave compensation. |
| Brytning | SAG mill drive | Extreme continuous torque for semi-autogenous grinding mill. |
| Marine | Large propeller shaft drive | Reliable low-speed drive for large vessel shaft systems. |
| Socker | Sugar mill crushing drive | Very high torque at slow speed for sugar cane crushing. |
Urvalsguide
- Erforderligt utgångsmoment (Nm) ?? Confirm peak and continuous with safety factor (1.3-2.0 typical).
- Utväxlingsförhållande ?? Motor speed (rpm) / required output speed (rpm).
- Antal etapper ?? 4-stage (4-stage) provides ratio 50:1 – 500:1.
- Motorgränssnitt ?? Flange type (SAE/ISO metric), shaft diameter and key.
- Driftsmiljö ?? IP class, ambient temperature, mounting orientation.
Contact our engineers för en gratis granskning av applikationsstorlekar.
Brevini EQ4255 vs. EVER POWER EP-EQ4255
Notice: EVER POWER references Brevini riduttori EQ4255 solely for customer cross-reference. We are not affiliated with Brevini. Our EP-EQ4255 is an independently designed product that is dimensionally and functionally compatible. No Brevini trademarks or intellectual property are reproduced.
| Aspekt | Brevini EQ4255 | EVER POWER EP-EQ4255 |
|---|---|---|
| Pris | OEM European premium | Competitive ?? 30-45% saving typical |
| Ledtid | 6-16 weeks depending on size | 2-6 weeks |
| Växelsteg | 4 | 4 |
| Garanti | 12 månader standard | 18 månader standard |
| Anpassning | Limited | OEM/ODM-ritningar accepterade |
EVER POWER levererar även matchade el- och hydraulmotorer för kompletta drivsystempaket. Fråga om motorparning.
Kvalitetscertifieringar och serviceåtagande
- ISO 9001:2015 certifierad tillverkning och kvalitetsledning.
- CE-märkning Uppfyller EU:s maskindirektiv 2006/42/EG.
- 18 månaders garanti from shipment date covering all EP-EQ4255 manufacturing defects.
- 48-hour technical response for field issues.
- Seal kits and wear parts stocked for rapid dispatch.
Läs mer på EVER POWER Om oss.
Fallstudier ?? Fältanteckningar för ingenjörer
| Land | Ansökan | Kundfeedback |
|---|---|---|
| Förenade Arabemiraten | Cement mill main drive, large plant | “Extreme torque requirement met. CE documentation accepted by our local regulator without question.” ?? Plant Director, Abu Dhabi. |
| Australien | Large mining excavator travel drive, iron ore mine | “Class-leading torque handled the hardest magnetite bench conditions without overload.” ?? Equipment Director, Pilbara. |
| Netherlands | Ship thruster drive, heavy offshore vessel | “EVER POWER delivered on a very tight shipyard schedule. The gearbox was dimensionally exact.” ?? Marine Engineer, Rotterdam. |
Vanliga frågor
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.
Samarbeta med EVER POWER
EVER POWER supports OEM machine builders and maintenance teams worldwide. Browse our komplett ersättningssortiment, utforska our capabilities, eller kontakta oss idag för en snabb offert. Besök planetväxellåda.topp.
