Pompa Utama Hidraulik Hitachi ZAX450-6 – Rekondisi China (9184686)

Deskripsi

Informasi Detail

1. Fitur & Manfaat Utama

• Dibuat ulang secara profesional sesuai spesifikasi OEM – 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.

• Sistem kontrol daya terintegrasi (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.

• Alternatif hemat biaya untuk unit asli baru – 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.

• Pengganti baut langsung – 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.

• Verifikasi visual pra-pengiriman – Sebelum pengemasan, kami mengirimkan foto resolusi tinggi terperinci dari unit buatan ulang yang sebenarnya (flensa pemasangan, spline, ulir port, kondisi umum). Anda menyetujui pengiriman – kami tidak pernah mengirim secara buta.

• Pengiriman cepat – Waktu tunggu 5–8 hari kerja dari gudang Guangzhou kami. Kapasitas pasokan bulanan 300 unit, tersedia untuk pesanan satuan atau grosir.

2. Aplikasi

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.

• Armada sewa peralatan – 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. Mengapa Memilih Bagian 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.

Proses rekondisi 6 langkah kami:

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

2. Pembersihan & inspeksi retak – All parts are thoroughly cleaned and inspected for cracks or damage using dye penetrant testing on critical castings. Irreparable parts are scrapped.

3. Penggantian komponen aus – 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. Perakitan presisi – Components are reassembled using OEM torque specifications. Clearance tolerances on the cylinder block / valve plate interface are verified using dial indicators.

5. Validasi meja uji hidrolik – 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. Pemeriksaan kualitas akhir & pengemasan – The pump is painted, fitted with protective port caps, and packed in a heavy‑duty wooden case for export.

Mengapa pompa rekondisi kami mengungguli unit “rebuilt” yang lebih murah:

• Bantalan dan segel baru – Banyak perombak murah menggunakan kembali bantalan lama untuk menghemat biaya. Kami tidak. Semua komponen berputar mendapatkan bantalan baru – faktor paling penting untuk umur panjang pompa.

• Permukaan aus yang digerinda presisi – Blok silinder dan pelat katup digerinda ulang untuk mengembalikan kerataan. Permukaan yang dilap sangat penting untuk kebocoran internal yang rendah. Tanpa itu, pompa akan terlalu panas dan kehilangan tenaga dalam hitungan minggu.

• Laporan pengujian lengkap – Berdasarkan permintaan, kami menyediakan laporan pengujian yang menunjukkan pengukuran tekanan, aliran, case drain, dan suhu. Anda melihat data sebelum membeli.

Apa yang tidak Anda beli: 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.

• Pengalaman industri 25+ tahun – Didirikan pada tahun 2001, kami telah merekondisi ribuan pompa untuk Hitachi, Caterpillar, Komatsu, Kobelco, Volvo, SANY, dan banyak merek lainnya.

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

• Pengiriman 24 jam – Dari pusat Guangzhou kami ke forwarder Anda dalam 1 hari; pesanan internasional dikirim dalam waktu 24 jam.

• Verifikasi visual pra-pengiriman – Kami tidak pernah mengirim pompa secara buta. Anda menerima foto jelas dari unit sebenarnya sebelum pengemasan – Anda menyetujui, kami kirim.

• Dukungan teknis – 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:
– saluran case drain must be clear and unrestricted. A blocked case drain will blow the shaft seal instantly on first startup.
– Before installing the remanufactured pump, flush the entire hydraulic system and replace all filters. Contaminants from the failed pump will destroy a remanufactured unit just as quickly as a new one.
– Gunakan O-ring dan ring penyegel baru pada setiap sambungan hidrolik. Segel bekas pasti menyebabkan kebocoran.
– 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.
– Periksa kesejajaran pompa dengan rumah roda gila mesin – ketidaksejajaran menyebabkan kegagalan bantalan prematur dan kebocoran segel poros.

Catatan garansi: Masa garansi adalah 3 hingga 6 bulan tergantung detail produk. Kami tidak memberikan layanan garansi untuk suku cadang bekas asli atau remanufaktur. Nilai kami diberikan di muka: rekondisi yang cermat, pengujian menyeluruh, dan verifikasi visual pra-pengiriman. Untuk pelanggan yang memerlukan opsi dengan garansi, kami dapat menawarkan unit aftermarket baru – tanyakan kepada tim penjualan kami.

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.