Bomba hidráulica principal Hitachi ZAX60 – Reacondicionada de China (AP2D25 / 4663300)

Descripción

Información detallada

1. Características y ventajas principales

• Professionally remanufactured to OEM specifications – This AP2D25 series hydraulic main pump (OEM 4663300) has been fully disassembled, cleaned, inspected, and rebuilt in our ISO‑certified facility in China. Worn components (cylinder block, piston assemblies, valve plate, swashplate, bearings, seals) are replaced with new, high‑quality parts. The result is a pump that delivers performance and reliability comparable to a new unit at a fraction of the cost.

• Original Hitachi AP2D25 tandem axial piston design – The AP2D25 is a variable displacement double (tandem) axial piston pump, combining two independent pumping units in one housing. This design powers the travel, swing, boom, arm, and bucket circuits simultaneously, providing smooth, coordinated operation for your ZAX60 (ZX60) excavator.

• Restored hydraulic power – After remanufacturing, this pump delivers rated working pressure up to 24.5 MPa (≈3,550 psi) and intermittent pressure up to 29.4 MPa (≈4,350 psi). Displacement remains 2 × 25 cm³/rev, restoring the original flow and torque characteristics of your machine.

• Sistema de control de potencia integrado (detección de carga) – La bomba reconstruida conserva el sistema de control de potencia de fábrica, que ajusta la salida de la bomba a la carga de trabajo real. Esto reduce el consumo de combustible, evita la parada del motor y prolonga la vida útil tanto de la bomba como del sistema hidráulico. Una bomba de engranajes piloto integral también se reconstruye para alimentar el circuito de control.

• Reemplazo directo atornillable – The pump’s mounting flange, drive shaft spline, and hydraulic port configurations are restored to original Hitachi specifications. No modifications, no adapters, no fabrication – your mechanic unbolts the old pump and bolts this one in.

• Alternativa rentable a la nueva genuina – A new genuine Hitachi main pump can cost thousands of dollars. Our remanufactured AP2D25 gives you the same fit, form, and function at a significantly lower price, without sacrificing reliability. Each pump is tested on a hydraulic test stand before dispatch.

• Verificación visual previa al envío – Antes del embalaje, le enviamos fotografías detalladas de alta resolución de la unidad remanufacturada real (brida de montaje, estrías, roscas de puertos, estado general). Usted aprueba el envío – nunca enviamos a ciegas.

• Entrega rápida – Plazo de entrega de 5 a 8 días hábiles desde nuestro almacén de Guangzhou. Capacidad de suministro mensual de 300 unidades, disponible para pedidos individuales o al por mayor.

2. Aplicaciones

The remanufactured AP2D25 hydraulic main pump is ideal for Hitachi ZAX60 (ZX60) excavators used in a variety of demanding job sites:

• Construcción urbana y servicios públicos – Sidewalk repairs, water and gas line trenching, fibre‑optic cable installation, and small‑scale demolition. The rebuilt load‑sensing control adjusts flow to match light‑duty cycles, saving fuel while maintaining precise control.

• Paisajismo residencial y excavación de piscinas – Pool digs, retaining walls, grading, and drainage work. The tandem pump design allows independent flow to travel and attachment circuits, enabling simultaneous boom and bucket movements without power loss.

• Agricultura y gestión de tierras – Drainage ditch cleaning, irrigation trenching, pond maintenance, and fence post hole digging. The restored high‑pressure output provides the tractive force needed for pulling through soft, muddy fields.

• Apoyo minero y mantenimiento de canteras – Site cleanup, drainage maintenance, equipment pad grading, and light aggregate handling. Abrasive dust and sharp rock fragments place heavy demands on pump seals and wear components; our remanufacturing process replaces all critical wear parts to withstand these harsh conditions.

• Mantenimiento de flotas de alquiler de equipos – Midi excavators are frequent rental items. A failed main pump stops production. A remanufactured pump offers predictable service life (3,000–5,000 hours) at a cost that makes proactive replacement financially sensible, avoiding costly mid‑rental failures and customer complaints.

• Despeje forestal y de vegetación – Steep slopes, fallen timber, hidden obstacles. The rebuilt power control system prevents engine stall when sudden load spikes occur, maintaining consistent hydraulic power for attachment operation.

• Road & bridge maintenance – Shoulder repair, guardrail replacement, drainage cleaning, and slope stabilisation. The restored tandem pump allows the operator to reposition the machine while operating the attachment – critical for roadside work with short work windows.

3. Why Choose Hongtengda Parts – Remanufacturing That You Can Trust

At Hongtengda Parts, we have been supplying and remanufacturing hydraulic pumps for excavators since 2001. We know that a main pump failure on your ZAX60 is a production‑stopping event. 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. – The pump is stripped down to individual components (cylinder block, piston assemblies, valve plate, swashplate, bearings, shaft, housing).

2. Limpieza e inspección de grietas – All parts are cleaned and inspected for cracks or damage. Irreparable castings are scrapped.

3. Wear component replacement – The following are always replaced with new: all seals, O‑rings, bearings, and gaskets. The cylinder block and valve plate are re‑ground or replaced. Piston assemblies are matched and replaced as a set. The swashplate surface is reconditioned or replaced.

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 is mounted to a test stand and run through its full pressure and flow range. We verify operating pressure (up to 24.5 MPa), flow rate (approx. 110‑120 L/min), case drain leakage (must be within spec), and power control response.

6. Control de calidad final y embalaje – The pump is painted, fitted with port protection caps, and packed in a heavy‑duty wooden case.

Why our remanufactured pump outperforms cheaper “rebuilt” units:

• New bearings and seals – Many budget rebuilders reuse old bearings. We do not. All rotating components get new bearings.

• 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.

• Full test report available – Upon request, we provide a test report showing pressure, flow, and case drain measurements.

Lo que no está comprando: A used pump with new paint and a set of O‑rings. Our remanufactured pump is restored to meet or exceed OEM performance standards – at a price that makes sense for your older ZAX60.

• 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% – AP2D25 series pumps 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 unit before packing – you approve, we ship.

• Soporte técnico – Send us your ZAX60 machine serial number and a photo of the old pump. We confirm compatibility and provide installation guidance within 2 hours.

Send us your Hitachi ZAX60 machine serial number and a photo of the old pump – we will verify fitment, provide a quote, and document our pre‑shipment inspection within 24 hours.