Ekstrom Carlson repairs and rebuilds Hitachi spindles and live tooling to OEM performance standards — including milling heads, angle heads, and turning attachments. Our technicians service Hitachi spindles across CNC lathes, machining centers, and multi-axis turning equipment.
Every repair starts with a full disassembly and written diagnosis. We replace worn bearings, restore tapers, repair housings, and rebuild with precision components — then dynamically balance, run-out test, and thermally verify every spindle before it ships back to you.
Our Process
Full disassembly, bearing inspection, housing measurement, and root‑cause analysis. You receive a written evaluation before any work begins.
Bearing replacement, shaft re‑grinding, taper restoration, seal replacement, and housing repair — using components matched to OEM specifications.
Dynamic balancing, thermal testing at operating speed, and run‑out verification. Every spindle ships with a documented test report.
Hitachi spindle models we repair
| Brand | Model / RMA Number | Serial / Job Number | Max RPM | Parts Reference |
|---|---|---|---|---|
| Hitachi Seiki | H630 spindle | H630 / – | – | |
| Hitachi | Hitachi live tool | Hitachi / R2024008 | – | R202118700070970014217001375 |
| Hitachi | HG800 live tool | HG800 / – | – | |
| Hitachi | seikeHG500 live tool | HG50334 / – | – | 50 taper |
| Hitachi Seiki | Z/HS-QCV40 live tool | 9D03 / R2018538 | – | 2 7001633700075770014586 70021857002186 |
| Hitachi Seiki | VG45012 live tool | VG45012 / R2016304 | 4,000rpm | dr7000464dr7001861dr7001862 |
| Hitachi Seiki | MS-400H live tool | MS-4007 / R2014620 | 12,000rpm | 70015937001230 |
| Hitachi Seiki | Hitachi Seiki live tool | Hitachi Seiki / R2019951 | 3,000rpm | 3 7001643 |
| Hitachi Seiki | V40M-Z/012 W8 live tool | 1745-00803-02 / R2019070 | – | 2 700108270014217001375 |
| Hitachi Seiki | VM-40II spindle | cat 40 / – | 8,000rpm |
Have questions about Hitachi spindle repair, turnaround times, pricing, or technical requirements?
Our technicians are ready to help.