Hitachi EX200-5 Bomba Hidráulica Principal – Reacondicionada en China (Ensamblaje Hefei: 9150726 / 9152668)

Descripción

Información detallada

1. Características y ventajas principales

• Precision‑remanufactured for Hefei‑assembled EX200‑5 – This twin pump set (9150726 / 9152668) is specifically rebuilt to Hitachi‘s factory specifications for the locally produced (Hefei) EX200‑5 excavator. Every critical component – cylinder block, piston assemblies, valve plate, swashplate, bearings, and seals – is either renewed or replaced with new, high‑quality parts. The result is restored hydraulic performance at a fraction of the cost of a new genuine pump set.

• Original Hitachi tandem axial piston architecture – The two pumps work together as a variable displacement tandem system, powering travel, swing, boom, arm, and bucket circuits independently. This design ensures smooth, coordinated multi‑function operation without internal flow loss – exactly as your EX200‑5 performed when it left the Hefei assembly line.

• Restored 20‑ton class power – After remanufacturing, the pump set delivers a rated working pressure of 31.9 MPa (≈4,630 psi) with intermittent peaks up to 34.3 MPa (≈4,975 psi). Combined flow is approximately 360‑400 L/min at rated engine speed. Your excavator regains full digging force, fast cycle times, responsive swing, and powerful travel.

• Control de potencia con detección de carga integrado – The factory power control (load‑sensing) system is completely rebuilt. It continuously matches pump output to actual working demand, reducing fuel consumption, preventing engine stall under sudden load, and extending the life of the entire hydraulic system. The integral pilot gear pump is also fully remanufactured.

• Alternativa rentable a la nueva genuina – A new Hitachi main pump set for a 20‑ton excavator is a major investment. Our remanufactured 9150726 / 9152668 gives you the same fit, form, and function at a significantly lower price, without sacrificing reliability. Each pump is dyno‑tested before dispatch.

• Reemplazo directo atornillable – Mounting flanges, drive shaft splines, and hydraulic port configurations are restored to original Hefei‑spec Hitachi dimensions. No modifications, no adapters, no fabrication – your mechanic unbolts the old pumps and bolts these in.

• Verificación visual previa al envío – We send you clear, high‑resolution photographs of the actual remanufactured units (mounting flanges, splines, port threads, castings, overall condition) before packing. You approve shipment – we never ship blind.

• Entrega rápida – 5–8 working days from our Guangzhou warehouse. Monthly supply capacity of 300 sets, available for single‑set or bulk orders.

2. Aplicaciones

The remanufactured Hitachi 9150726 / 9152668 main pump set is ideal for the Hefei‑built EX200‑5 (20‑ton class) used in demanding job sites:

• Construcción pesada e infraestructura – Highway excavation, dam building, bridge footings, large‑scale earthmoving. The restored tandem pumps deliver simultaneous boom, arm, and travel power without internal leakage – no power fade, no sluggish response, even on long shifts.

• Canteras y áridos – Carga de camiones, gestión de acopios y manipulación de materiales en condiciones de polvo abrasivo. Los cojinetes, sellos y placas de desgaste nuevos garantizan que las bombas sobrevivan donde fallan las unidades desgastadas. El caudal y la presión constantes significan tiempos de ciclo más rápidos y menor consumo de combustible.

• Apoyo minero – Limpieza del sitio, mantenimiento de carreteras, trabajos de drenaje y nivelación de plataformas para equipos. El control de detección de carga reduce el consumo de combustible durante ciclos de trabajo ligero, ahorrando dinero a lo largo de miles de horas de operación.

• Demolición y procesamiento de chatarra – Las cargas de choque y la vibración son habituales. Nuestro proceso de remanufactura reemplaza todos los componentes de desgaste, restaurando la capacidad de las bombas para soportar condiciones adversas e impredecibles.

• Flota de alquiler de equipos – Las excavadoras de 20 toneladas son caballos de batalla para alquiler. Un juego de bombas remanufacturadas ofrece una vida útil predecible (3.000–5.000 horas) a un costo que hace que el reemplazo proactivo sea financieramente sensato, evitando costosas fallas durante el alquiler, facturas de remolque y quejas de los clientes.

• Silvicultura y desmonte de terrenos – Pendientes pronunciadas, madera caída, obstáculos ocultos. El control de potencia integral evita que el motor se cale bajo picos de carga repentinos, manteniendo una potencia hidráulica constante para sierras, pulgones y trituradoras.

3. Por qué elegir Recambios Hongtengda – Remanufacturing Without Compromise

At Hongtengda Parts, we have been remanufacturing hydraulic pumps for Hitachi excavators since 2001. We know that a main pump failure on your EX200‑5 stops your job site completely. Our remanufacturing process is not a “clean and reseal” – it is a factory‑grade restoration.

Our 6‑step remanufacturing process:

1. – La unidad se desmonta hasta componentes individuales: jaulas de cojinetes, portadores planetarios, coronas dentadas, eje del husillo, bloque de pistones, barril de cilindros, placa de válvulas, sección del motor hidráulico y paquete de frenos. – Each pump is stripped down to individual components: cylinder block, piston assemblies, valve plate, swashplate, bearings, shaft, housing, and control valves.

2. Limpieza e inspección de grietas – All parts are thoroughly cleaned and inspected for cracks using dye penetrant testing on critical castings. Irreparable parts are scrapped.

3. Wear component replacement – All seals, O‑rings, bearings, and gaskets are replaced with new. The cylinder block and valve plate are re‑ground to restore flatness. Piston assemblies are matched as a set and replaced if worn. The swashplate surface is reconditioned.

4. Reensamblaje de precisión – Components are reassembled using OEM torque specifications. Clearance tolerances on the cylinder block / valve plate interface are verified.

5. Hydraulic test stand validation – The completed pump set is mounted to a test stand and run through its full pressure and flow range. We verify operating pressure (up to 31.9 MPa), flow rate (approx. 360‑400 L/min total), case drain leakage, and power control response. A test report is available upon request.

6. Control de calidad final y embalaje – The pumps are painted, fitted with protective port caps, and packed in a heavy‑duty wooden case for export.

Why our remanufactured pump outperforms cheaper “rebuilt” units:

• New bearings and seals – Many budget rebuilders reuse old bearings to save cost. We do not. All rotating components get new bearings – the single most important factor for pump longevity.

• Precision‑ground wear surfaces – The cylinder block and valve plate are re‑ground to restore flatness. A lapped surface is essential for low internal leakage. Without it, the pump will overheat and lose power within weeks.

• Full test report – Upon request, we provide a test report showing pressure, flow, case drain, and temperature measurements. You see the data before you buy.

Lo que no está comprando: A used pump with new paint and a set of O‑rings. Our remanufactured pump set is restored to meet or exceed OEM performance standards – at a price that makes sense for your older EX200‑5.

• Más de 25 años de experiencia en la industria – Founded in 2001, we have remanufactured thousands of pumps for Hitachi, Caterpillar, Komatsu, Kobelco, Volvo, SANY, and many other brands.

• Disponibilidad de existencias del modelo 90% – 9150726 / 9152668 pump sets are in stock as remanufactured units, ready for dispatch from our Guangzhou warehouse.

• Envío en 24 horas – Desde nuestro centro logístico en Guangzhou hasta su transitario en 1 día; pedidos internacionales enviados en 24 horas.

• Verificación visual previa al envío – We never ship a pump blind. You receive clear photos of the actual units before packing – you approve, we ship.

• Soporte técnico – Send us your EX200‑5 (Hefei) machine serial number and photos of the old pumps. We confirm compatibility and provide installation guidance within 2 hours.

Send us your Hefei‑built EX200‑5 machine serial number and photos of the old pumps – we will verify fitment, provide a quote, and document our pre‑shipment inspection within 24 hours.

Critical installation tip for the 9150726 / 9152668 remanufactured pump set:
– Los La línea de drenaje de la carcasa debe estar sin restricciones. Un drenaje bloqueado reventará el sello del eje instantáneamente en el primer arranque. El drenaje de la carcasa en cada bomba debe estar despejado y sin restricciones. Un drenaje de carcasa bloqueado reventará el sello del eje instantáneamente en el primer arranque.
– Antes de instalar las bombas remanufacturadas, lave todo el sistema hidráulico y reemplace todos los filtros. Los contaminantes de las bombas averiadas destruirán una unidad remanufacturada tan rápido como una nueva.
– Use juntas tóricas y arandelas de sellado nuevas en cada conexión hidráulica. Los sellos reutilizados garantizan fugas.
– Después de la instalación, haga funcionar el motor en ralentí bajo durante 2-3 minutos con las bombas en punto muerto, luego accione lentamente cada función (pluma, brazo, cucharón, giro, desplazamiento) para purgar el aire del sistema.
– Verifique la alineación de la bomba con la carcasa del volante del motor: la desalineación causa fallas prematuras de los cojinetes y fugas en el sello del eje.

Nota de garantía: El período de garantía es de 3 a 6 meses según los detalles del producto. No ofrecemos servicio de garantía para piezas originales usadas o remanufacturadas. Envíenos el número de serie de su máquina Hitachi EX200‑3 y una foto de la bomba vieja – verificaremos el ajuste, proporcionaremos una cotización y documentaremos nuestra inspección previa al envío dentro de las 24 horas.

The main hydraulic pump set is the heart of your EX200‑5‘s hydraulic system. Our remanufactured 9150726 / 9152668 gives you restored 20‑ton class performance at a cost that keeps your budget intact – not with shortcuts, but with a genuine factory‑grade restoration. Send us your Hefei EX200‑5 machine serial number – we will confirm compatibility and provide a quote within 24 hours.