Nexturn BN-266

$160,000 - $240,000 Updated 2026-03-17

Key Specifications

Rapid Traverse

30 m/min (1,181 ipm)

Accuracy

±0.003 mm

Repeatability

±0.002 mm

max bar capacity

26 mm (1.024 in)

max machining length

220 mm (8.66 in)

number of axes

7-axis simultaneous (X1, Z1, Y1, X2, Z2, C1, C2)

Overview

The Nexturn BN-266 is a 26mm bar capacity CNC Swiss-type automatic lathe from Nexturn, the South Korean precision machine tool manufacturer. The BN-266 sits at the mid-tier of Nexturn's BN series, expanding bar capacity from the 20mm BN-206 to 26mm to address a broader range of part families — from the small precision parts that 20mm Swiss machines handle up to the medium-diameter parts in orthopedics, fluid handling, and precision automotive sectors where bar stock in the 20-26mm range is common. The 26mm size class is a high-demand tier in Swiss-type production, and the BN-266 competes directly against the Tsugami B0326, Citizen L26, and Star SR-26J.

The BN-266 is built on a reinforced structural base relative to the BN-206, sized for the higher cutting forces associated with 26mm diameter work in stainless steel, titanium, and Inconel. The main spindle delivers up to 10,000 RPM and 5.5 kW of power — adequate for 26mm turning in most engineering alloys. The sub-spindle runs at the same speed for backworking, with C-axis on both spindles enabling angular operations across the full range of cross-milling, drilling, and tapping operations that define Swiss-type complete machining. Y-axis on the main spindle side supports off-center milling for cross-slots, keyways, and multi-flat features.

The BN-266 supports up to 26 tool positions, which is well-suited to the complex part families common in the 26mm class — orthopedic bone screws with thread-whirled body and milled drive head, hydraulic fittings with multiple ported cross-holes, and automotive shaft components with milled flats, keyways, and multiple turned diameters. The guide bushing provides the standard Swiss-type workpiece support at the cutting zone, and the removable guide bushing option permits non-guide-bushing mode for parts with lower length-to-diameter ratios where material waste reduction is a priority.

Nexturn positions the BN-266 with Fanuc 32i-B CNC control and a price range of $160,000-$240,000 for typical production configurations with bar feeder. This pricing places the BN-266 approximately 10-15% below comparable Japanese 26mm Swiss-type platforms and represents a meaningful cost advantage over the machine's service life when calculated on a cost-per-part basis. For contract shops expanding their Swiss-type fleet from 20mm to 26mm capacity, or for manufacturers whose part mix requires 26mm capability at a lower initial capital cost, the BN-266 is a directly relevant evaluation candidate.

Full Specifications

Parameter	Value
Max Bar Capacity	26 mm (1.024 in)
Max Machining Length	220 mm (8.66 in)
Number Of Axes	7-axis simultaneous (X1, Z1, Y1, X2, Z2, C1, C2)
Main Spindle Speed	10,000 RPM
Main Spindle Power	5.5 kW (7.4 hp)
Sub Spindle Speed	10,000 RPM
Sub Spindle Power	3.7 kW (5 hp)
C Axis	Both main and sub-spindle
Y Axis	Main spindle side
Tool Positions	Up to 26
Driven Tool Speed	8,000 RPM
Guide Bushing	Yes (removable for non-guide bushing mode)
Positioning Accuracy	±0.003 mm
Repeatability	±0.002 mm
Rapid Traverse Rate	30 m/min (1,181 ipm)
CNC Control	Fanuc 32i-B
Machine Weight	2,400 kg (5,291 lb)
Diamtre Du Trou De Broche	0.4724"
Axe	7
Pouvoir	3 hp
Tr Min	10,000 RPM
Marque	NEXTURN
Modle	SA12B
Identifiant	698364
Taper	Machines à vis automatiques de type suisse
Condition	Nouvelle fabrication sur commande
Emplacement	États-Unis
Prnom	Nom de famille
Aurez Vous Besoin Dun Financement	OuiNon
Oui	Non
Aurez Vous Besoin Dun Service De Transport De Marchandises	OuiNon

Specifications sourced from machinetools.com — verified 2026-03-28

Strengths & Limitations

Strengths

26mm bar capacity with 7-axis simultaneous control enables complete machining of complex orthopedic, hydraulic, and automotive parts in a single bar-fed cycle
10,000 RPM main and sub-spindle speeds deliver good surface speed for stainless steel and titanium work at 26mm diameter, supporting the medical and aerospace material requirements this diameter class commonly sees
Up to 26 tool positions provides sufficient tool density for multi-feature part families without frequent tool changeover between production runs
Fanuc 32i-B control ensures compatibility with major Swiss-type CAM software including Esprit, GibbsCAM, and PartMaker — reducing programming investment for shops adding the BN-266 to an existing Fanuc Swiss fleet
10-15% price advantage over comparable Japanese 26mm Swiss-type platforms reduces capital cost and shortens payback period for shops with established Swiss production volume

Limitations

Y-axis on main spindle side only — some competing 26mm Swiss platforms offer Y-axis on both main and sub-spindle sides, enabling more complex off-center backworking operations
Nexturn's North American service network coverage varies by region; shops in areas without a local Nexturn distributor should evaluate service response time commitments carefully before purchase
Brand qualification may require additional justification in medical device regulated manufacturing environments compared to established Japanese names like Citizen or Tsugami

Best For

Orthopedic implant manufacturers producing bone screws, cortical screws, and pedicle screw components from titanium and medical stainless bar in the 10-26mm range requiring thread whirling and drive-head milling Hydraulic and pneumatic component manufacturers producing fittings, valve stems, and manifold adapters in the 16-26mm diameter range with multiple cross-drilled ports and turned features Precision automotive parts shops running turbocharger shafts, fuel injector bodies, and ABS sensor components requiring Swiss-type tolerances and done-in-one cycle efficiency Contract precision machine shops expanding 26mm Swiss-type capacity at a competitive capital cost compared to incumbent Japanese brand machines

Frequently Asked Questions

01 What is the difference between the Nexturn BN-206 and BN-266?

The BN-266 offers 6mm more bar capacity (26mm vs 20mm) and 7-axis simultaneous control vs 6-axis on the BN-206. The larger bar capacity opens the BN-266 to the 20-26mm part diameter range common in orthopedics and hydraulics, and the additional axis provides more parallel machining capability. The BN-266 also has a heavier structural base and higher spindle power (5.5 kW vs 3.7 kW) appropriate for the larger cutting forces at 26mm diameter. Price is approximately $30,000-$40,000 higher for the BN-266.

02 How does the BN-266 compare to the Tsugami B0326?

The Tsugami B0326 is a well-established 26mm Swiss-type with up to 7 axes and 27 tool positions, running on Fanuc 32i-B control — very similar specification to the BN-266. The Tsugami carries Tsugami's stronger brand recognition and more mature North American service infrastructure (distributed through REM Sales / Marubeni Citizen-Cincom). The BN-266 typically prices 10-15% below the Tsugami B0326 at equivalent specification. For shops with existing Tsugami relationships, the Tsugami is the lower-risk choice; for shops optimizing capital cost, the BN-266 is a serious alternative.

03 Can the BN-266 machine titanium?

Yes. The BN-266 handles titanium alloys including Ti-6Al-4V (Grade 5) with appropriate tooling selection and cutting parameters. High-pressure coolant (optional) is strongly recommended for titanium — 70 bar coolant through the guide bushing and to the cutting zone significantly improves tool life and prevents built-up edge. Titanium's tendency toward work hardening requires consistent chip breaking, and for highest productivity in titanium the optional high-pressure coolant package should be specified.

04 What is thread whirling, and does the BN-266 support it?

Thread whirling is a specialized Swiss-type operation that produces external threads — particularly bone screw threads — by orbiting multiple cutting inserts around the rotating workpiece in a continuous cut. It produces threads 5-10x faster than single-point threading with excellent surface finish. The BN-266 supports thread whirling with the appropriate driven whirling attachment, which mounts in the driven tool positions. This capability is essential for orthopedic bone screw production.

05 What is the footprint of the BN-266 with bar feeder?

The BN-266 has a base footprint of approximately 2,200 x 1,300 mm. With a standard 12-foot magazine bar feeder, total machine line length extends to approximately 5,500-6,000 mm (18-20 ft). The machine requires a level concrete floor rated for the machine weight of 2,400 kg plus bar feeder. Multiple BN-266 machines can be arranged in parallel cell configurations for high-volume Swiss-type production.