31Q6-40010 gaitas reduktors paredzēts Hyundai R210LC-9 R210-9 R235LC-9 R235-9 midi ekskavatora
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Pārdevēja kontakti
+86 189 289...
+86 189 2896 5241
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Rumānija, Maramures
Product Overview
The Hyundai Robex ‑9 line is the current‑generation face of Hyundai's excavator range — the R210LC‑9 and R210‑9 are 21‑ton general excavators, while the R235LC‑9 and R235‑9 step up to 23.5 tons with extra lifting capacity. What binds them is a common travel drive platform, reference 31Q6‑40010: a hydraulic motor and planetary reducer tucked into each track frame, taking high‑pressure oil from the main pump and turning it into the slow, steady pull moving the machine across site.
On a worked ‑9 series Hyundai, drive wear shows up in small increments first. One track lags the other on a long straight, the track shell warms after a shorter trundle than it should, and a low note creeps into the circuit under load. Most crews nurse it another week — but by then the piston group and reduction gears are already shedding swarf into the travel oil. This aftermarket unit reproduces the original motor‑and‑reducer pairing as one sealed, bench‑run assembly, covering all four model variants, so the worn drive lifts out whole and the new one bolts straight in.
Core Advantages
1. One reference covers four Robex models
The 31Q6‑40010 platform spans the 21‑ton and 23.5‑ton ‑9 builds, so workshops running a mixed Hyundai fleet keep one part on the shelf rather than four separate numbers.
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 modern production cycles
Modern Robex machines run long shifts on subdivisions and road jobs. Case‑hardened planetary teeth share the load across several surfaces, and controlled backlash keeps the reducer quiet.
4. Sealed for dust, mud and pressure washing
Whether the site is dusty topsoil or muddy clay, fresh shaft and housing seals keep grit out of the lube. That is the line between a drive that reaches its first rebuild and one that does not.
5. Aftermarket price for a high‑hour fleet
An OEM exchange drive carries a premium that is hard to justify on a worked ‑9 series. This unit restores full track mobility at a fraction of that cost, with sample and bulk supply available.
Manufacturing & Quality Control
Parts are machined to Hyundai print, heat‑treated at wear points, and assembled in a clean shop. Each finished drive runs on a hydraulic stand while torque, leakage and noise are logged; units outside spec are reworked before packing. The internals are fogged with preservation oil, ports are plugged, and the assembly ships on shock‑absorbing dunnage.
Frequently Asked Questions
Q1: Which Robex models does this fit?
A: The 31Q6‑40010 covers the R210LC‑9, R210‑9, R235LC‑9 and R235‑9. Send the machine serial number and we confirm the exact variant before dispatch.
Q2: Will this work on a ‑9 series with telematics?
A: Yes — the drive itself is a mechanical hydraulic unit and does not interface with the machine's electronics. The telematics system carries on working as normal after the swap.
Q3: What break‑in should the operator follow?
A: Take the first shift easy on loaded grades. Light cycling seats the new gears and seals, then check oil level and fitting torque after the first day.
Q4: Can I ship this by sea to African ports?
A: Yes — drives this size ship well by sea. Tell us the destination port and we will quote door‑to‑port or door‑to‑door, including any inland trucking needed.
Q5: What is the warranty position?
A: Materials and build 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.