Gruppo motore di traslazione per motoriduttore finale Hitachi ZAX890‑5A – Giapponese Genuino (4688059 / HMG88EA018‑000668)

Descrizione

Informazioni dettagliate

Nota: Le informazioni sull'applicazione fornite sono solo a scopo di riferimento. Si prega di confermare il numero del pezzo e confrontarlo con il componente vecchio prima dell'acquisto. Per qualsiasi domanda, non esitate a contattarci. contattateci.
Vale la pena scegliere un prodotto che offra prestazioni stabili, elevata affidabilità, facile installazione e risposta rapida.

1. Caratteristiche e vantaggi principali

• Japanese genuine final drive – OEM part numbers 4688059, HMG88EA018‑000668, and HMG88ER series. Manufactured in Japan to Hitachi’s original specifications. This is a brand‑new, never‑used travel motor assembly – not remanufactured, not rebuilt, not salvaged.

• Direct fit for Hitachi ZAX890‑5A – Precision‑engineered for the 85‑metric‑ton ZAX890‑5A, ZX890LCH‑5A, ZX870‑5A, ZX870LC‑5A, and ZX890H‑5A excavators. Mounting flange dimensions, bolt patterns, sprocket interface, and hydraulic port locations match the factory original exactly – no modifications, no adapters, no guesswork.

• High‑torque swashplate axial piston motor – The HMG88EA integrates a variable‑displacement axial piston hydraulic motor with a multi‑stage planetary gearbox. Delivers smooth, progressive travel power even under extreme digging loads and steep slopes.

• Two‑speed travel capability – Fully supports the machine’s two‑speed travel system. High speed (up to 4.6 km/h) for rapid site repositioning; low speed (up to 3.1 km/h) for high‑torque crawling during tough digging, pushing, or climbing. Automatic shift logic matches original machine behaviour.

• Integrated spring‑applied parking brake – Wet multi‑disc brake engages automatically when travel controls return to neutral, holding the 85‑ton machine securely on slopes. Brake releases instantly when a travel command is given – no drift, no creep.

• Premium duo‑cone floating seals – Japanese‑spec floating seals (duo‑cone type) prevent cross‑contamination between the hydraulic motor section and the planetary gearbox. These seals keep abrasive dust, water, and debris out while retaining gear oil – the single most important factor for final drive longevity.

• Heavy‑duty planetary geartrain – Precision‑ground, case‑hardened alloy steel gears (sun, planet, and ring) designed for high shock load resistance in mining and quarry applications. The cast iron housing is dimensioned to withstand the full weight and impact forces of an 85‑ton excavator.

• Plug‑and‑play replacement – Your mechanic unbolts the failed unit and bolts this one in. No special tools, no programming, no calibration. All hydraulic port thread sizes and sealing configurations match the original.

• Verifica visiva pre-spedizione – We send you detailed high‑resolution photographs of the actual unit – mounting flange, splines, port threads, casting marks, and overall condition. You approve shipment; we never ship blind.

• Consegna veloce – 5–8 working days lead time from our Guangzhou warehouse. Monthly supply capacity of 300 units, available for single or bulk orders.

2. Applicazioni

The Hitachi ZAX890‑5A equipped with the HMG88EA final drive is an 85‑ton workhorse deployed in the most demanding heavy industries. A genuine Japanese travel motor ensures reliable mobility and maximum uptime.

• Miniere a cielo aperto su larga scala – In copper, gold, iron ore, and coal mines, 85‑ton excavators work 20+ hour shifts. The final drive endures extreme shock loads, abrasive dust, and continuous high torque. A genuine Japanese unit delivers the durability needed to keep production moving – and a spare on the shelf turns a week of downtime into a single‑shift repair.

• Edilizia pesante e movimento terra – Dam construction, highway cuts, bridge abutments, and large‑scale site preparation demand consistent track mobility. A final drive failure in the middle of a major project stops production completely, and towing an 85‑ton machine requires specialized heavy recovery equipment. A new, genuine final drive eliminates the guesswork of used or remanufactured components.

• Cave e aggregati – Granite, limestone, and basalt quarries subject the undercarriage to severe vibration and impact. The HMG88EA’s case‑hardened planetary gears and duo‑cone floating seals are specifically designed to keep abrasive dust out of the gearbox.

• Oil sands & heavy overburden – Extreme traction conditions in oil sands mining require reliable two‑speed travel. The integrated wet disc brake holds the machine on steep spoil pile slopes even with a fully loaded bucket.

• – Attività forestali e disboscamento – Steep grades, soft ground, and hidden obstacles are routine. The final drive’s low‑speed, high‑torque capability pulls the machine through mud and over fallen timber while the parking brake secures it on inclines.

• Manutenzione di flotte di noleggio attrezzature – Large rental fleets operating 80‑90 ton machines need predictable component life. A genuine Japanese final drive provides a known service life (8,000–10,000 hours), allowing proactive replacement before failure – avoiding costly emergency repairs, recovery bills, and lost rental revenue.

3. Why Choose Parti di Hongtengda – Genuine Japanese Stock, Ready to Ship

At Hongtengda Parts, we have been supplying genuine and remanufactured undercarriage components for excavators since 2001. We know that a final drive failure on an 85‑ton machine is not just a parts problem – it is a production‑stopping event. Our approach focuses on what matters to you: authenticity, transparency, and speed.

• Oltre 25 anni di esperienza nel settore – Founded in 2001, we have sourced genuine Japanese final drives for Hitachi, Caterpillar, Komatsu, Kobelco, Hyundai, SANY, XCMG and more than fifteen other brands. We maintain direct sourcing relationships with Japanese supply chains – no middlemen, no questionable counterfeits.

• Nuovo stock originale, non rimanifatturato – The HMG88EA final drive is a new, genuine Japanese component. No remanufactured units with unknown histories. No “rebuilt” cores with new paint. You receive a factory‑fresh final drive, ready to install.

• Disponibilità a magazzino 90% – Hitachi ZAX890‑5A final drive travel motor assemblies are in stock and ready for immediate dispatch from our Guangzhou warehouse. We are not a drop‑shipper – the unit you order is physically on our shelf, inspected, and ready to go.

• Spedizione in 24 ore – Dal nostro hub di Guangzhou al tuo spedizioniere in 1 giorno. Gli ordini internazionali vengono spediti entro 24 ore via mare, aereo o corriere espresso (DHL, FedEx, UPS, TNT). La maggior parte dei clienti riceve il proprio gruppo di traslazione finale entro una settimana.

• Verifica visiva pre-spedizione – We never ship a final drive blind. Before packing, we take clear, high‑resolution photographs of your actual unit – mounting flange, splines, port threads, casting markings, and general condition. You approve shipment – we do not ship without your confirmation.

• Imballaggio professionale per l'esportazione – Ogni motoriduttore finale viene imballato in una cassa di legno resistente, senza fumigazione, con imbottitura interna in schiuma e rinforzi angolari. La vostra unità arriva integra, sia che venga spedita per via aerea sia nella stiva inferiore di una nave portacontainer.

• One‑stop sourcing for Hitachi undercarriage parts – Oltre ai motoriduttori finali, forniamo componenti completi del carro (catene, ruote dentate, rulli tenditori, ruote tendicingolo, pattini), pompe idrauliche (serie K5V), motori di rotazione, valvole di controllo, parti motore e kit completi di ricostruzione per escavatori Hitachi serie EX e ZX.

• Supporto tecnico prima dell’acquisto – Non siete sicuri che questo motoriduttore finale sia compatibile con la vostra specifica variante di macchina? Inviateci il numero di serie della vostra macchina e una foto del vecchio motoriduttore finale. Il nostro team di officina confermerà la compatibilità, verificherà i fori di montaggio e controllerà le configurazioni dei porti entro 2 ore.

• Assistenza tecnica post-vendita – After you receive your final drive, our support continues. If you have questions about installation, torque specifications, case drain line routing, or brake bleeding, our engineers are available via email and messaging.

Send us your Hitachi ZAX890‑5A machine serial number and a photo of the old final drive – we will confirm compatibility, provide a firm quote, and document our pre‑shipment inspection for your approval within 24 hours.