Tsugami B0386
Key Specifications
Rapid Traverse
Accuracy
Repeatability
max bar capacity
main spindle speed
sub spindle speed
Overview
The Tsugami B0386 is Tsugami's flagship 38 mm Swiss-type automatic lathe, designed to push into larger-diameter precision work while maintaining the tight tolerances and multi-axis capability that define the B-series lineup. With a 38 mm bar capacity, the B0386 opens up a class of aerospace, medical implant, and high-precision automotive parts that fall outside the reach of 20-32 mm Swiss-type machines — including hip and knee implant components, larger-diameter aerospace fittings, and complex hydraulic valve bodies.
The B0386 runs a main spindle at 8,000 RPM and a sub-spindle at 8,000 RPM, appropriate for the larger diameter stock. Spindle power is increased relative to the smaller B-series machines, with the main spindle delivering 5.5 kW (7.5 hp) for more aggressive stock removal in stainless steel and titanium. The machine offers up to 7 axes — including X1, Z1, X2, Z2, Y1, and B-axis — providing complete 5-sided access to parts in a single setup. Tool capacity reaches 28 to 32 stations depending on configuration, one of the highest in the Swiss-type segment at this bar capacity.
For medical aerospace applications, the B0386 supports thread whirling tooling, polygon turning attachments, and live tooling for milling and drilling. Its guide bushing system is engineered for the larger 38 mm stock, maintaining bar support precision critical for long titanium bone screw blanks and small aerospace shaft components. Positional accuracy of ±0.003 mm and repeatability of ±0.002 mm are characteristic of the B-series platform.
The Fanuc 32i-B control provides the programming backbone. High-pressure coolant to 70 bar is available as an option, essential for titanium and Inconel work at 38 mm diameters. Pricing for the B0386 ranges from $230,000 to $320,000 depending on axis count, tooling, and options. Primary competitors at this diameter include the Citizen L32, Star SR-32J III, and Tornos GT 32.
Full Specifications
| Parameter | Value |
|---|---|
| Max Bar Capacity | 38 mm (1.496 in) |
| Main Spindle Speed | 200 – 6,000 rpm |
| Sub Spindle Speed | 200 – 7,000 rpm |
| Main Spindle Power | 5.5 kW (7.5 hp) |
| Number Of Axes | Up to 7 axes (including B-axis) |
| Tool Stations | Up to 32 tools |
| Guide Bushing | Standard (removable for non-guide bushing mode) |
| Travel X1 | 40 mm (1.57 in) |
| Travel Z1 | 230 mm (9.06 in) |
| Travel X2 | 40 mm (1.57 in) |
| Travel Z2 | 110 mm (4.33 in) |
| Rapid Traverse Rate | 28 m/min (1,102 ipm) |
| Positioning Accuracy | ±0.003 mm |
| Repeatability | ±0.002 mm |
| CNC Control | Fanuc 32i-B |
| Machine Weight | 4,850 kg / 10,694 lbs. |
| Maximum Bar Stock | 38 mm / 1.5″ |
| Axes | 6 |
| Sliding Headstock Guide Bushing | YES |
| Convertible Run W O Guide Bushing | YES |
| Max Headstock Stroke W Guide Bushingmax Headstock Stroke W O Guide Bushing | 320 mm / 12.6”70 mm / 2.75” |
| Tool Positions | 32/ 42 |
| Live Tool Positions | 15 / 26 |
| Cnc Control | FANUC 32i-B |
| Live Tool Speed | 6,000 rpm |
| Main Spindle Motor | 7.5 / 11 kW |
| Footprint W X D X H | 2,240 x 1,515 x 2,050 mm88″ x 60″ x 81″ |
Specifications sourced from tsugamiamerica.com — verified 2026-03-28
Strengths & Limitations
Strengths
- 38 mm bar capacity expands Swiss-type precision into larger aerospace and medical implant components not reachable by 26 mm machines
- 5.5 kW main spindle delivers the power needed for aggressive stainless steel and titanium stock removal at larger diameters
- Up to 32 tool stations provide exceptional flexibility for complex multi-feature parts with extensive milling, drilling, and threading requirements
- B-axis capability enables angular drilling and milling for off-center features common in aerospace fittings and surgical implants
- 7-axis configuration handles complete 5-sided part production in a single setup, eliminating costly secondary operations
- Thread whirling compatibility makes the B0386 well-suited for bone screw manufacturing at diameters up to 38 mm
Limitations
- 8,000 RPM main spindle is lower than smaller-diameter Swiss-type machines; shops running very small diameters alongside 38 mm parts should consider a secondary machine
- At $230K-$320K, the B0386 is a significant capital commitment requiring sustained production volume to achieve reasonable payback
- 3,500 kg machine weight requires a robust floor plan; shops with limited floor load capacity should verify concrete slab specifications
- Swiss-type setups at 38 mm are more challenging than at 20-26 mm; experienced setup personnel are essential for efficient changeovers
Best For
Frequently Asked Questions
01
Both target the 32-38 mm Swiss-type segment for medical and aerospace work. The Citizen L32 is well-known for its LFV chip-breaking technology, which is highly effective for stringy titanium and stainless steel. The Tsugami B0386 counters with higher tool density (up to 32 stations vs the L32's typical 24-28) and B-axis standard configuration. Applications engineers at both REM Sales (Tsugami) and Marubeni Citizen-Cincom (Citizen) can provide competitive demos for specific part families.
02
Yes. The B0386 is well-equipped for titanium Ti-6Al-4V and Ti-6Al-4V ELI used in orthopedic implants. Key requirements for titanium include high-pressure coolant (70 bar option strongly recommended), sharp carbide tooling with appropriate coatings (TiAlN or AlTiN), and conservative cutting speeds. The guide bushing support is critical for maintaining straightness and surface finish on long titanium shafts and screw blanks.
03
The B0386 supports thread whirling attachments mounted in the live tooling positions. Thread whirling produces bone screw threads in a single pass at high feed rates, dramatically reducing cycle time vs conventional single-point threading. The whirling head spins at 2,000-4,000 RPM around the workpiece while the main spindle rotates slowly. This process is essential for high-volume medical screw manufacturing and is a key reason orthopedic shops evaluate Tsugami B-series machines.
04
Yes. The Y-axis is included in the 7-axis configuration, enabling off-center milling, keyway cutting, and complex contoured features on the OD and face of parts. The Y-axis range is typically ±15-20 mm, sufficient for most features encountered in medical and aerospace Swiss-type work.
05
At a $265,000 average investment and typical Swiss-type shop billing rates of $150-$250 per hour, a B0386 running two shifts can generate $500K-$800K in annual revenue on complex medical or aerospace parts. Payback periods of 2-4 years are realistic for shops with established contracts. Shops without guaranteed volume should secure customer commitments before purchasing.
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