Yamazaki Mazak Vertical Machining Centers

Mazak FJV BT40

$150,000 - $220,000 Updated 2026-03-13

Key Specifications

X Travel

1,020 mm (40.2 in)

Y Travel

760 mm (29.9 in)

Z Travel

460 mm (18.1 in)

Max Spindle

12,000 RPM

Spindle Taper

BT 40

Tool Capacity

30 (arm-type ATC)

Overview

The Mazak FJV BT40 is a bridge-type vertical machining center designed for high-speed, high-accuracy machining of medium-to-large parts. The bridge construction provides superior rigidity compared to C-frame VMCs by supporting the spindle head from both sides of the column, eliminating the cantilever effect that causes deflection in standard verticals when cutting at full Y-axis extension.

The FJV BT40 series offers travel of approximately 1,020 x 760 x 460 mm (40.2 x 29.9 x 18.1 in). The 760 mm Y-travel is notable for a BT 40 machine and enables work on wider parts that would require a much larger machine in a C-frame configuration. The BT 40 spindle turns at up to 12,000 RPM with 18.5 kW (25 hp), with higher-speed options available.

The bridge design distributes cutting forces symmetrically, which translates to better surface finish and tighter tolerance holding across the full work envelope, not just near the column. For mold work, large plate machining, and aerospace skin panels, this consistency matters. The machine maintains accuracy at the corners of the envelope where C-frame machines typically degrade.

The 30-station arm-type ATC provides fast tool changes. Rapid traverse reaches 42 m/min on X and Y. The MAZATROL SmoothG CNC handles both conversational and G-code programming with full 3D simulation.

Competitors include the Okuma MB-66V, DMG Mori DMF series, and Haas VF-6 (though the Haas lacks bridge construction). New FJV BT40 machines price between $150,000 and $220,000. Used units from 2005-2018 trade between $50,000 and $120,000, making them attractive for shops that need bridge-type rigidity without new-machine pricing.

Full Specifications

Parameter	Value
X-Axis Travel	1,020 mm (40.2 in)
Y-Axis Travel	760 mm (29.9 in)
Z-Axis Travel	460 mm (18.1 in)
Max Spindle Speed	12,000 RPM
Spindle Taper	BT 40
Spindle Motor Power	18.5 kW (25 hp)
Tool Capacity	30 (arm-type ATC)
Table Size	47.24" × 21.65"
Max Table Load	1,500 kg (3,307 lb)
Rapid Traverse Rate	42 m/min (X/Y)
Machine Type	Bridge-type construction
CNC Control	MAZATROL SmoothG CNC
Guide Type	Linear roller guides
Machine Weight	9,500 kg (20,944 lb) approx.
Tool Shank	No. 40
Max Spindle Speed	12000 min-1(rpm)

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

Strengths & Limitations

Strengths

Bridge-type construction eliminates cantilever deflection, maintaining rigidity and accuracy across the full Y-axis travel
760 mm (29.9 in) Y-travel is generous for a BT 40 machine, enabling work on wider parts without stepping up to a larger platform
Symmetric force distribution produces better surface finish and tighter tolerances at the corners of the work envelope compared to C-frame VMCs
30-station ATC and 42 m/min rapids keep the machine productive despite its larger-than-average work envelope
1,500 kg table load supports heavy mold bases, die plates, and structural workpieces
MAZATROL SmoothG provides conversational programming for complex contours common in mold and aerospace work
Strong used market makes bridge-type rigidity accessible to shops that cannot justify new pricing

Limitations

Bridge construction adds machine weight (9,500 kg) and footprint compared to C-frame VMCs with similar X-travel
Starting at $150,000, the FJV BT40 costs more than comparable C-frame VMCs
BT 40 taper limits tool rigidity for very heavy roughing; shops needing maximum tool clamping should consider the FJV BT50
Larger physical footprint requires more floor space than standard VMCs with similar work envelope
Older used FJV machines may have earlier MAZATROL controls with limited conversational features

Best For

Mold and die shops machining large mold halves and die plates that need consistent accuracy across a wide Y-axis envelope Aerospace manufacturers machining skin panels, structural plates, and large brackets where bridge rigidity prevents deflection Shops machining large aluminum plates and panels where surface finish consistency across the full table matters Tool and die makers who need the rigidity of a bridge machine at BT 40 spindle speeds for semi-finishing and finishing Job shops handling large flat work that benefits from the wide Y-travel and symmetric cutting forces

Frequently Asked Questions

01 What does a new Mazak FJV BT40 cost?

New FJV BT40 machines range from $150,000 to $220,000 depending on spindle speed options, tool capacity, and accessories. Used units from 2005-2018 trade between $50,000 and $120,000.

02 What is the advantage of bridge-type construction?

Bridge construction supports the spindle head from both sides of the column, eliminating the cantilever effect found in C-frame VMCs. This means the machine maintains rigidity and accuracy at full Y-axis extension and at the corners of the work envelope where C-frame machines typically lose accuracy.

03 How does the FJV BT40 compare to the FJV BT50?

The FJV BT40 uses a 40-taper spindle running at higher speeds (12,000 RPM) for lighter, faster cuts. The FJV BT50 uses a 50-taper spindle with more tool clamping force and power for heavier roughing. Choose BT40 for speed-oriented work in aluminum and light steel, BT50 for heavy steel and cast iron.

04 Is the FJV BT40 good for mold work?

Excellent. The bridge construction provides the rigidity needed for consistent surface finish across large mold faces. The 12,000 RPM spindle handles semi-finishing and finishing passes well. For heavy roughing of mold steel, the BT50 variant may be preferable.