Beschrijving
EP-EC4255 4-Stage Compact High-Ratio Planetary Gearbox
Brevini Riduttori EC4255 Compatible Replacement | EVER POWER
De EC4-series delivers 4-stage ratio coverage up to 400:1 in EVER POWER’s most compact RPM-series housing ?? targeting applications where both extreme ratio and minimum housing size are simultaneously required. It serves compact winch drives, small tracked machine travel drives, micro-positioning systems, compact industrial hoist units and tight-envelope high-reduction drives that cannot accommodate full-size 4-stage housing dimensions.
De EP-EC4255 replaces the Brevini riduttori EC4255 ?? a 4-stage compact planetary gearbox delivering approximately 102,000 Nm output torque, ratio range 30:1 – 400:1, and IP rating IP65.
Technische parameters
| Parameter | Waarde |
|---|---|
| Model | EP-EC4255 |
| Vervangt | Brevini riduttori EC4255 |
| Output Torque | 102,000 Nm |
| Versnellingsbakken | 4 |
| Verhoudingsbereik | 30:1 – 400:1 |
| Maximale invoersnelheid | 3,000 rpm |
| Efficiëntie | >= 92% |
| Beschermingsklasse | IP65 |
| Geschat gewicht | ~571 kg |
Werkingsprincipe
Four planetary stages are packed coaxially in the compact housing using thin-wall ring gear sections and optimised planet-to-ring gear clearance. The output shaft features a large-diameter bore option allowing a hollow-through shaft configuration ?? enabling the EC4 to be mounted directly on a drive shaft or screw without a separate shaft-to-shaft coupling, which is especially valuable in very compact installations.
Kernvoordelen
|
★ Up to 400:1 Compact
4-stage reduction in smallest available housing diameter. |
★ Hollow Through-Shaft Option
Mount directly on drive screw or shaft ?? eliminates coupling. |
|
★ Thin-Wall Ring Construction
Maximum torque density in minimum radial space. |
★ Compact High-Ratio
Replaces tandem gearbox arrangements in space-constrained machines. |
|
★ Direct EC4-Series Replacement
Same mounting pattern as original Brevini unit. |
Structuur- en materiaaltechnologie
Thin-wall ring gear sections are machined from 42CrMo4 through-hardened steel for maximum stiffness in the reduced wall thickness. Planet gears use 17CrNiMo6 carburised steel, ground to DIN 5. The hollow through-shaft option uses a precision-ground bore to H6 tolerance for interference or clearance fit on the drive shaft. Seals are FKM-fluoroelastomeer for synthetic oil.
Typische toepassingsscenario's
| Industrie | Sollicitatie | Belangrijkste voordeel |
|---|---|---|
| Offshore | Large AHC winch main drive | High torque and ratio for active heave compensation. |
| Mijnbouw | 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. |
| Suiker | Sugar mill crushing drive | Very high torque at slow speed for sugar cane crushing. |
Selectiegids
- Vereist uitgangskoppel (Nm) ?? Confirm peak and continuous with safety factor (1.3-2.0 typical).
- Overbrengingsverhouding ?? Motor speed (rpm) / required output speed (rpm).
- Aantal fasen ?? 4-stage (4-stage compact) provides ratio 30:1 – 400:1.
- Motorinterface ?? Flange type (SAE/ISO metric), shaft diameter and key.
- Bedrijfsomgeving ?? IP class, ambient temperature, mounting orientation.
Contact our engineers for a free application sizing review.
Brevini EC4255 vs. EVER POWER EP-EC4255
Notice: EVER POWER references Brevini riduttori EC4255 solely for customer cross-reference. We are not affiliated with Brevini. Our EP-EC4255 is an independently designed product that is dimensionally and functionally compatible. No Brevini trademarks or intellectual property are reproduced.
| Aspect | Brevini EC4255 | EVER POWER EP-EC4255 |
|---|---|---|
| Prijs | OEM European premium | Competitive ?? 30-45% saving typical |
| Levertijd | 6-16 weeks depending on size | 2-6 weeks |
| Versnellingsbakken | 4 | 4 |
| Garantie | 12 maanden standaard | 18 maanden standaard |
| Aanpassing | Limited | OEM/ODM-tekeningen worden geaccepteerd |
EVER POWER levert ook matched electric and hydraulic motors voor complete aandrijfsysteem pakketten. Enquire about motor pairing.
Kwaliteitscertificeringen en servicebelofte
- ISO 9001:2015 certified manufacturing and quality management.
- CE-markering ?? EU Machinery Directive 2006/42/EC compliant.
- 18 maanden garantie from shipment date covering all EP-EC4255 manufacturing defects.
- 48-hour technical response for field issues.
- Seal kits and wear parts stocked for rapid dispatch.
Learn more at EVER POWER Over ons.
Case Studies ?? Engineer Field Notes
| Land | Sollicitatie | Klantenfeedback |
|---|---|---|
| VAE | Cement mill main drive, large plant | “Extreme torque requirement met. CE documentation accepted by our local regulator without question.” ?? Plant Director, Abu Dhabi. |
| Australië | 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. |
Veelgestelde vragen
Q: What applications benefit most from the hollow through-shaft option?
A: Ball screw drives, spindle through-feeds and cable management channels that must pass through the gearbox centre benefit most. The hollow bore eliminates the need for a separate coupling.
Q: Is the EC4 available with a brake flange?
A: Yes. An input-side spring-applied brake interface boss is available for compact hoisting and winching applications.
Werk samen met EVER POWER
EVER POWER supports OEM machine builders and maintenance teams worldwide. Browse our full replacement range, explore our capabilities, or contact us today for a fast quotation. Visit planetary-gear-box.top.
