Główna pompa hydrauliczna Hitachi ZAX450-6 – regenerowana w Chinach (9184686)

Opis

Szczegółowe informacje

1. Kluczowe cechy i korzyści

• Professionally remanufactured to OEM specifications – This main hydraulic pump (OEM 9184686) 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 specification for ZAX450‑6 – The 9184686 is the direct replacement for the 40‑ton class ZAX450‑6, ZX450, and related models. It restores the factory hydraulic power, flow, and pressure characteristics that your machine was designed to deliver.

• Tandem variable displacement axial piston design – Two independent pumping sections in one housing power the travel, swing, boom, arm, and bucket circuits simultaneously. This design allows smooth, coordinated operation even under heavy load – no power loss when you need to combine functions.

• Restored flow and pressure – After remanufacturing, this pump delivers rated working pressure of approximately 34–35 MPa (≈4,900–5,100 psi) and a total flow of over 400 L/min (two main sections plus integral gear pump). Your ZAX450‑6 regains full digging force, fast cycle times, and responsive travel.

• Zintegrowany system sterowania mocą (load-sensing) – The rebuilt pump retains the factory power control system, which matches pump output to actual working load. This reduces fuel consumption, prevents engine stall, and extends the life of both the pump and the hydraulic system. The integral pilot gear pump is also rebuilt to supply the control circuit.

• Cost‑effective alternative to new genuine – A new genuine Hitachi main pump for a 40‑ton excavator is a significant investment. Our remanufactured 9184686 gives you the same fit, form, and function at a much lower price, without sacrificing reliability. Each pump is tested on a hydraulic test stand before dispatch.

• Bezpośrednia wymiana typu bolt-on – Kołnierz montażowy, wielowypust wału napędowego i konfiguracje przyłączy hydraulicznych są przywracane do oryginalnych specyfikacji Hitachi. Żadnych modyfikacji, żadnych adapterów, żadnej obróbki – Twój mechanik odkręca starą pompę i przykręca tę.

• Weryfikacja wizualna przed wysyłką – Przed pakowaniem wysyłamy szczegółowe zdjęcia w wysokiej rozdzielczości rzeczywistej odbudowanej jednostki (kołnierz montażowy, wielowypusty, gwinty przyłączy, ogólny stan). Zatwierdzasz wysyłkę – nigdy nie wysyłamy w ciemno.

• Szybka dostawa – Czas realizacji 5–8 dni roboczych z naszego magazynu w Guangzhou. Miesięczna zdolność dostaw 300 sztuk, dostępne dla zamówień pojedynczych i hurtowych.

2. Zastosowania

The remanufactured Hitachi 9184686 main pump is ideal for ZAX450‑6 and 40‑ton class excavators used in high‑production environments:

• Large‑scale mining & quarrying – 40‑ton excavators are the backbone of many open‑pit mines and aggregate quarries. A pump with restored volumetric efficiency delivers full power all day – faster loading cycles, better fuel economy, and no mid‑shift power fade.

• Heavy civil construction – Dam building, highway excavation, tunnel portal work, and large‑scale earthmoving demand consistent hydraulic power. A remanufactured pump gives you predictable performance at a cost that makes sense for older machines.

• Demolition & scrap recycling – Shock loads and vibration accelerate pump wear. Our remanufacturing process replaces all bearings, seals, and wear plates, restoring the pump‘s ability to survive the most punishing conditions.

• Material handling & port operations – Loading logs, scrap metal, or aggregates requires smooth, responsive hydraulic control. A properly remanufactured pump with factory‑spec tolerances provides that control without the expense of a new unit.

• Floty wynajmu sprzętu – Keeping 40‑ton excavators in rental service means minimising downtime. A remanufactured pump offers a predictable service life (3,000–5,000 hours) and allows you to budget for replacements without the shock of a new genuine price tag.

3. Why Choose Części Hongtengda – Remanufacturing That Delivers

At Hongtengda Parts, we have been remanufacturing hydraulic pumps for excavators since 2001. We know that a main pump failure on a ZAX450‑6 stops production completely. Our remanufacturing process is not a “clean and reseal” – it is a factory‑grade restoration.

Our 6‑step remanufacturing process:

1. Całkowity demontaż – The pump is stripped down to individual components: cylinder block, piston assemblies, valve plate, swashplate, bearings, shaft, housing, and control valves.

2. Czyszczenie i kontrola pęknięć – All parts are thoroughly cleaned and inspected for cracks or damage using dye penetrant testing on critical castings. Irreparable parts are scrapped.

3. Wymiana elementów zużywających się – All seals, O‑rings, bearings, and gaskets are replaced with new, high‑quality parts. 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 or replaced.

4. Precyzyjny montaż – Components are reassembled using OEM torque specifications. Clearance tolerances on the cylinder block / valve plate interface are verified using dial indicators.

5. Walidacja na stanowisku testowym hydraulicznym – The completed pump is mounted to a test stand and run through its full pressure and flow range. We verify operating pressure (up to 35 MPa), flow rate (400+ L/min total), case drain leakage (must be within spec), and power control response. A test report is available upon request.

6. Końcowa kontrola jakości i pakowanie – The pump is 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.

• Precyzyjnie szlifowane powierzchnie zużycia – 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.

Czego Państwo nie kupują: 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 ZAX450‑6.

• Ponad 25 lat doświadczenia w branży – Founded in 2001, we have remanufactured thousands of pumps for Hitachi, Caterpillar, Komatsu, Kobelco, Volvo, SANY, and many other brands.

• Dostępność 90% w magazynie – 9184686 pumps are in stock as remanufactured units, ready for dispatch from our Guangzhou warehouse.

• Wysyłka w ciągu 24 godzin – Z naszego centrum w Guangzhou do Twojego spedytora w 1 dzień; zamówienia międzynarodowe wysyłane w ciągu 24 godzin.

• Weryfikacja wizualna przed wysyłką – We never ship a pump blind. You receive clear photos of the actual unit before packing – you approve, we ship.

• Wsparcie techniczne – Send us your ZAX450‑6 machine serial number and a photo of the old pump. We confirm compatibility and provide installation guidance within 2 hours.

Send us your Hitachi ZAX450‑6 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.

Critical installation tip for the 9184686 remanufactured pump:
– Uszczelnienia pływające przewód spływu obudowy must be clear and unrestricted. A blocked case drain will blow the shaft seal instantly on first startup.
– Przed instalacją odbudowanej pompy przepłucz cały układ hydrauliczny i wymień wszystkie filtry. Zanieczyszczenia z uszkodzonej pompy zniszczą odbudowaną jednostkę równie szybko, co nową.
– Używaj nowych O-ringów i podkładek uszczelniających przy każdym połączeniu hydraulicznym. Ponowne użycie uszczelek gwarantuje wycieki.
– After installation, run the engine at low idle for 2–3 minutes with the pump in neutral, then slowly cycle each function (boom, arm, bucket, swing, travel) to purge air from the system.
– Check pump alignment with the engine flywheel housing – misalignment causes premature bearing failure and shaft seal leakage.

Uwaga dotycząca gwarancji: Okres gwarancji wynosi od 3 do 6 miesięcy, w zależności od szczegółów produktu. Nie udzielamy gwarancji na oryginalne używane lub regenerowane części. Our value is delivered up front: careful remanufacturing, thorough testing, and pre‑shipment visual verification. For customers who require a warranty‑covered option, we can quote new aftermarket units – ask our sales team.

The main hydraulic pump is the heart of your ZAX450‑6’s hydraulic system. Our remanufactured 9184686 gives you restored 40‑ton class performance at a cost that keeps your budget intact – not with shortcuts, but with a genuine factory‑grade restoration. Send us your ZAX450‑6 serial number – we will confirm compatibility and provide a quote within 24 hours.