Nachi's PVD series is genuinely a proven combination pump — a piston pump section and a gear pump section built into a single housing, specifically engineered to run all the hydraulic functions of a compact excavator from one compact unit. This is a widely-used, cross-brand solution: mini excavators from Hitachi (ZX30U-class), Komatsu (PC40-class), Yanmar, and other manufacturers commonly run Nachi PVD pumps rather than a brand-proprietary design.
Given how many mini excavator brands converge on this platform, correctly identifying your exact PVD variant matters — the full part code (e.g., PVD-2B-40P, PVD-1B-32P) determines exact displacement and fitment, and different mini excavator models can specify different variants even within the same weight class.
Cross-Brand Fitment — Confirm Your Exact PVD Code
Since Nachi PVD pumps genuinely appear across Hitachi, Komatsu, and other mini excavator brands, the excavator brand on the bodywork won't tell you the exact pump variant. Always confirm from the pump's own stamped nameplate.
Nachi Pumps — Vehicle Applications
Available Nachi Pump Variants
| Machine Class | Common Nachi Part | Type |
|---|---|---|
| Mini Excavator (~1-2 tonne) | PVD-1B-32P | Combination Piston + Gear |
| Compact Excavator (~3-4 tonne) | PVD-2B-36L / PVD-2B-40P | Combination Piston + Gear |
| Compact Excavator (~4-5 tonne) | PVD-2B-45P / PVD-2B-50P | Combination Piston + Gear |
Exact part code not listed? WhatsApp us a photo of your pump's stamped nameplate — we source across the full Nachi PVD range.
Our Nachi Quality Guarantee
Exact PVD Code Confirmed
We verify your full part code from the pump's nameplate before quoting — this genuinely cross-brand pump needs exact matching, not excavator-brand guesswork.
Piston & Gear Sections Both Serviced
Both halves of this combination pump — the piston section and gear section — are inspected and restored to original tolerance, not just the more visible half.
Bench Pressure & Flow Test
Every pump is tested at rated pressure with output documented on the written test report before dispatch.
3-Month Warranty
Minimum 3-month warranty on all Nachi pumps. Mini-excavator rental fleet operators ordering multiple units get volume pricing — ask at the quote stage.