Tsugami B0125C
Key Specifications
Max Spindle
bar capacity
main spindle speed
sub spindle speed
axes
spindle motor
Overview
The Tsugami B0125C is a 5-axis dedicated chucker (guide-bushless) CNC automatic lathe with 12 mm (0.5 in) bar capacity and a sub spindle for complete front-and-back machining. It takes the popular B0125 platform and optimizes it purely for short parts, eliminating the guide bushing for material savings and simpler operation.
The main spindle runs at 12,000 RPM driven by a 1.5/2.2 kW (3 HP) motor, with the sub spindle matching at 12,000 RPM. Four live tool positions deliver 8,000 RPM for cross-drilling, milling, and threading. The 21-position opposed gang tool post handles complex multi-operation parts with zero turret indexing delay. The FANUC 0i-TF control is a proven, well-supported platform.
The dedicated chucker design provides two material cost advantages: no guide bushing remnant waste (saving 20-30 mm per bar end) and the ability to use cold-drawn bar stock instead of precision-ground bar. On a 12 mm machine running production quantities, these savings compound to thousands of dollars per year. Setup is faster too — no guide bushing clearance to adjust, which matters when changeover time affects overall equipment effectiveness.
The B0125C occupies a 1,665 x 1,125 x 1,700 mm (65.2 x 44.3 x 66.9 in) footprint at 2,000 kg (4,409 lb). The 32 m/min rapid traverse rate keeps cycle times competitive. For shops producing complete short 12 mm parts in high volume — connector contacts with back chamfers, medical pins with back-drilled holes, or automotive sensor components with front and back features — the B0125C gives you full sub spindle capability without the costs associated with guide bushing operation.
Full Specifications
| Parameter | Value |
|---|---|
| Bar Capacity | 12 mm (0.5 in) |
| Main Spindle Speed | 12,000 RPM |
| Sub Spindle Speed | 12,000 RPM |
| Axes | 5 |
| Spindle Motor | 1.5/2.2 kW (3 HP) |
| Tool Positions | 21 |
| Live Tool Positions | 4 |
| Live Tool Speed | 8,000 RPM |
| Rapid Traverse Rate | 32 m/min |
| Guide Bushing | Dedicated chucker (guide-bushless) |
| CNC Control | FANUC 0i-TF |
| Dimensions | 1,665 x 1,125 x 1,700 mm (65.2 x 44.3 x 66.9 in) |
| Machine Weight | 2,000 kg (4,409 lb) |
| Max Spindle Speed | 8,000 min⁻¹ |
Specifications sourced from tsugami.co.jp — verified 2026-03-28
Strengths & Limitations
Strengths
- 5-axis with sub spindle provides complete part machining capability in dedicated chucker mode
- Matched 12,000 RPM main and sub spindles enable balanced front-and-back cycle times
- No guide bushing remnant waste plus cold-drawn bar compatibility deliver meaningful material savings
- 4 live tool positions at 8,000 RPM handle cross-drilling, milling, and threading
- 21-position gang tool post with zero indexing delay keeps cycle times fast
- Simpler setup than convertible guide bushing machines — faster changeovers
Limitations
- Dedicated chucker limits part length to roughly 3:1 L/D — can't machine long, slender Swiss parts
- 12 mm bar capacity limits part size — larger work needs the B020x platform
- 5-axis without Y-axis restricts off-centerline milling on the main side
- 4 live tool positions fewer than the 8 on the 6-axis B0126C variant
Best For
Frequently Asked Questions
01
Both are 5-axis 12 mm machines with sub spindles, matched 12,000 RPM spindles, and 21 tool positions. The B0125-VR has a convertible guide bushing (210 mm Swiss stroke, 45 mm chucker stroke). The B0125C is dedicated chucker only. For shops running exclusively short parts, the B0125C saves material cost and simplifies operation. For shops needing both long and short part capability, the B0125-VR's flexibility justifies its higher price.
02
The B0126C adds a 6th axis (Y2 on the sub spindle), increases tools to 25 with 8 live positions, and upgrades the control to FANUC 32i-B. It weighs less at 1,750 kg. If your parts need off-centerline milling on the back side — hex drives, flats, or slots on back-worked features — the B0126C is the right choice. If back-side work is straightforward turning and drilling, the B0125C saves money.
03
For 12 mm 303 stainless bar at $4-5/lb: remnant savings of $0.02-0.04 per bar end, plus ground bar premium savings of roughly $0.50-1.50/ft. Running 500,000 parts/year with 50 bar ends/day, annual savings are typically $5,000-$15,000. The exact amount depends on material cost, bar length, and production volume. The savings are most significant on expensive materials like titanium or Inconel.
04
No. The B0125C is a dedicated chucker — the headstock and guide bushing mounting area are designed specifically for guide-bushless operation. If you think you might need guide bushing capability in the future, buy the B0125-VR (convertible) instead. It costs more upfront but gives you the flexibility to run both modes.
05
Any standard bar feeder rated for 12 mm stock works. Popular pairings include LNS Alpha 320, IEMCA Boss 332, FMB Turbo 3-20, and Edge Technologies Patriot 320. Since you don't need precision-ground bar, you can use standard cold-drawn stock, which works fine with most bar feeders. Hydrodynamic feeders still give the best surface finish and vibration control.
