Опис
EP-RPR2800 Planetary Gearbox
EVER POWER 2-Stage 82,000 Nm Extreme-Duty High-Efficiency Planetary Gearbox
The EP-RPR2800 is EVER POWER’s most powerful 2-stage RPR gearbox, delivering 82,000 Nm output torque from a 2-stage design that maximises power transmission efficiency at extreme torque. Replacing the Brevini riduttori RPR2800, this unit is the preferred choice for high-power continuous-duty applications where the efficiency advantage of 2-stage design outweighs the cost of the larger housing — large mine ventilation fan drives, ultra-large pump drives, heavy ship thruster drives and primary metal processing drives.
Технічні параметри
| Параметр | Значення |
|---|---|
| Модель | EP-RPR2800 |
| Замінює | Brevini riduttori RPR2800 |
| Максимальний вихідний крутний момент | 82,000 Nm |
| Етапи шестерень | 2 |
| Діапазон співвідношення | 26:1 – 105:1 |
| Максимальна швидкість введення | 2,000 rpm |
| Клас захисту | IP67 |
| Приблизна вага | ~210 kg |
Принцип роботи
Two extreme-large-module planetary stages handle up to 120 kW continuous input power. The active oil-jet lubrication with integrated oil cooler bypass valve allows the oil system to circulate warm oil through the bypass at startup — protecting bearings and gear contacts from cold oil viscosity stress before the oil reaches operating temperature. The output flange features a large-diameter precision register for accurate centering of large-bore coupling flanges without separate centering rings.
Основні переваги
|
◼ 82,000 Nm Extreme Torque
Most powerful 2-stage RPR gearbox in EVER POWER’s catalogue. |
◼ 2x VAR Steel — Highest Purity
Double vacuum-arc-remelted steel — maximum fatigue life at extreme continuous duty. |
|
◼ Cold-Start Oil Bypass Valve
Circulates warm oil to all contacts before cold oil reaches operating temperature. |
◼ ISO Class 4 Gear Accuracy
Highest accuracy option — minimum transmission error for large machine drives. |
|
◼ Direct RPR2800 Replacement
Same flange dimensions as original Brevini unit. |
Структура та технологія матеріалів
All gears use 18CrNiMo7-6 double vacuum-arc-remelted (2x VAR) steel — the highest available purity for the gear steel used in any EVER POWER product. Carburising depth is 1.3-1.6 mm; profiles ground to ISO 1328 class 4. Planet carriers are GGG70 heavy-section nodular iron forgings. The output shaft is a solid 42CrMo4 + 18CrNiMo7-6 composite forging for maximum bending stiffness.
Типові сценарії застосування
| Промисловість | Застосування | Key Requirement |
|---|---|---|
| Видобуток корисних копалин | Ultra-large mine ventilation fan | 82,000 Nm allows direct drive of large fan impeller without belt stage. |
| Метал | Primary aluminium reduction cell stirrer | 2-stage efficiency critical for energy-intensive electrolytic reduction process. |
| Морський | Large thruster drive, heavy AHTS vessel | 2-stage minimises gearbox losses in tight engine room heat budget. |
| Water | Very large vertical turbine pump, hydroelectric plant | 82,000 Nm handles large turbine pump startup torque without soft-starter. |
Керівництво з вибору
- Необхідний вихідний крутний момент (Нм) — Confirm peak and continuous torque requirement with appropriate safety factor.
- Передавальне число — Motor speed (rpm) divided by required output speed (rpm).
- Duty Cycle — Continuous S1 or intermittent S3/S6; affects thermal de-rating.
- Motor Interface — Flange type (SAE/ISO), shaft diameter, keyway or spline specification.
- Навколишнє середовище — IP class, ambient temperature, corrosion zone, orientation.
Contact our engineering team for a free application sizing review.
Brevini RPR2800 vs. EVER POWER EP-RPR2800
Important Notice: EVER POWER references the Brevini riduttori RPR2800 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-RPR2800 is an independently designed and manufactured product that is dimensionally and functionally compatible.
| Аспект | Brevini RPR2800 | EVER POWER EP-RPR2800 |
|---|---|---|
| Price | Very high OEM rate | Competitive at extreme scale |
| Час виконання | 14-22 weeks | 6-8 weeks |
| Steel Grade | Standard VAR | 2x VAR — highest purity |
| Cold-Start Protection | Not standard | Bypass valve standard |
| Гарантія | 12 months | 18 months |
EVER POWER also supplies matched electric and hydraulic motors for complete drive system packages. Enquire about motor pairing.
Сертифікати якості та зобов'язання щодо обслуговування
- ISO 9001:2015 certified manufacturing and quality management.
- CE Marking — EU Machinery Directive 2006/42/EC compliant.
- 18-місячна гарантія from shipment date on all EP-RPR2800 units.
- Technical response within 48 hours for field issues.
- Spare parts and seal kits stocked for rapid dispatch.
Дізнайтеся більше на EVER POWER Про нас.
Case Studies — Engineer Field Notes
| Країна | Застосування | Feedback |
|---|---|---|
| Австралія | Ultra-large mine ventilation fan, deep coal mine | “82,000 Nm direct drive eliminated the belt transmission we previously used. Belt maintenance was a significant cost — now eliminated. Direct drive efficiency also measurably higher.” — Ventilation Engineer, Hunter Valley. |
| Iceland | Large geothermal pump drive, power plant | “2-stage efficiency was our primary requirement in a plant where every kWh has value. EVER POWER delivered 98.3% efficiency at rated load on our test certificate.” — Plant Engineer, Reykjavik. |
| Canada | Large AHTS thruster drive replacement | “2x VAR documentation was required by our class surveyor. EVER POWER supplied within 3 days — faster than any European supplier we approached.” — Chief Engineer, Halifax. |
Часті запитання
Q: What is the maximum input speed for EP-RPR2800?
A: Standard maximum input speed is 2,000 rpm. A high-speed variant accepting 2,500 rpm input is available for specific applications — contact our engineering team.
Q: How long does a standard delivery take?
A: Standard configured units are available in 6-8 weeks. Fully custom engineered variants typically require 10-14 weeks. We recommend confirming specifications early for project-critical installations.
Співпрацюйте з EVER POWER
EVER POWER supports OEM machine builders, engineering contractors and maintenance teams worldwide. Browse our full replacement range, explore our manufacturing capabilities, or зв'яжіться з нами сьогодні для швидкої котирування. Відвідайте планетарна-редукторна-коробка.top for the complete EVER POWER portfolio.
