Azionamento finale Hitachi HMV116 per escavatore medio Hitachi EX215

EX215 Final Drive for Excavator spare parts HMV116 Axial Piston Motor OEM

Product Overview

The Hitachi EX215 sits between the EX200 and the EX220 — a 21‑ton machine that took the best of the early EX generation and added a little more digging reach. Under each track frame sits the HMV116 axial piston motor and planetary reducer, the unit that takes pump flow and turns it into the slow, torque‑rich rotation pulling the machine across rough ground.

On an EX215 this age, the drive rarely gives a dramatic warning. It wears down in quiet stages: the two tracks stop quite matching, the machine drifts on level ground, the track shell warms after a trundle, and a note builds through the floor. Most crews nurse it until a track hesitates on a grade — but by then the piston block and valve plate have already been shedding swarf into the oil. This OEM‑grade unit reproduces the original HMV116 motor‑and‑reducer pairing as one sealed, bench‑tested assembly, so the worn drive lifts out whole and the new one bolts straight in.

Core Advantages

1. Keeps a legacy EX machine earning
Original HMV116 drives for the EX215 grow scarcer as the fleet ages. This OEM‑grade unit gives owners a path to keep a still‑useful machine on the job rather than writing it off over a dead track.

2. A lapped piston group that holds pressure
The cylinder block, piston shoes and valve plate are finished to close clearance, so oil pressure does not bleed internally. Both tracks pull in step — no drift, no lazy side, no hesitation when the bucket loads up.

3. Hardened gears for decades‑proven duty
The HMV116 planetary set follows a long‑proven Hitachi layout, with case‑hardened teeth that share the drive load evenly. Meshing stays smooth and quiet, and wear from years of track push slows right down.

4. Sealed for quarry dust and standing water
Legacy EX machines work through long hours in dust, mud and standing water. Fresh shaft and housing seals keep grit out of the lube — the protection that decides whether the drive reaches its first overhaul.

5. OEM‑spec quality without the dealer price
Renewing the drive to original tolerances restores the EX215's mobility far below the price of an original exchange unit, with sample and batch supply for workshops keeping legacy Hitachi machines on the books.

Manufacturing & Quality Control

The OEM‑grade route follows controlled specifications: material certification, precision machining of housings and gears, case hardening of wear surfaces and clean assembly. Each completed drive runs on a test rig to verify output torque, internal leakage and running noise before release, and only passing units are packed. Full preservation coating, moisture sealing and shock‑absorbing export casing protect the assembly during transport.

Frequently Asked Questions

Q1: How do I confirm the HMV116 matches my EX215?
A: Read the tag on your existing drive and send the machine serial number. Early Hitachi build variants can differ, so we cross‑check before dispatch.

Q2: Is this interchangeable with the EX200 or EX220?
A: The HMV116 family is related across the EX200 range, but mounting and output spline can differ between models. Send the serial number and we will tell you honestly whether it crosses over.

Q3: What symptoms mean the drive is tired?
A: Mismatched track speeds, pulling to one side, a warm or noisy track motor, and hesitation under load. Catch it before swarf spreads through the travel circuit.

Q4: Can a home workshop fit this?
A: The swap needs a track‑frame lift and basic hydraulic tools. If you already service undercarriages, it is a straightforward day job; otherwise use a mobile fitter.

Q5: What is the warranty position?
A: Manufacturing and material defects are covered. Damage from dirty oil, debris in the motor, track obstruction, overload or incorrect fitting is excluded. Photograph any arrival damage before uncrating.