Hurco BX40i

$350,000 - $500,000 (new) | $180,000 - $320,000 (used) Updated 2025-03-15

Key Specifications

X Travel

2,000 mm (78.7 in)

Y Travel

1,600 mm (63 in)

Spindle Taper

BT 50

Tool Capacity

Table Size

41.3 x 27.6 in (1,050 x 700 mm)

Spindle Power

38.9 hp @ 2,870 rpm (29 kW @ 2,870 rpm)

Overview

The Hurco BX40i is a horizontal boring mill that brings Hurco's signature WinMax conversational control to a machine category traditionally dominated by builders like Kuraki, Toshiba, and SNK. While Hurco is best known for VMCs, the BX series represents their push into the boring mill market, and the BX40i delivers a capable floor-type horizontal boring platform with the programming ease that has made Hurco a favorite among job shops and toolrooms.

The BX40i features X-travel of 2,000 mm (78.7 in), Y-travel of 1,600 mm (63 in), Z-travel (spindle quill) of 600 mm (23.6 in), and W-axis (table longitudinal) of 1,500 mm (59.1 in). The 130 mm (5.1 in) diameter spindle bore runs at up to 3,000 RPM with 30 kW (40 HP) continuous power. The BT 50 spindle taper provides the rigidity needed for boring operations where tool overhang and cutting forces are substantial.

The rotary table measures 1,400 x 1,600 mm (55.1 x 63 in) with a 5,000 kg (11,023 lb) load capacity and full 360-degree indexing. This B-axis positioning lets operators access multiple faces of a workpiece without reclamping, which is the fundamental advantage of a horizontal boring mill over a vertical machining center. For jobs like machining pump housings, gearbox cases, engine blocks, and large valve bodies, the ability to reach four or more sides of a part in a single setup eliminates the accumulated error that comes with multiple fixturings.

Box-way construction on all linear axes provides the rigidity and damping essential for boring operations where chatter control is critical. When you're boring a 200 mm hole at 5xD with a long bar, the machine's ability to damp vibration determines whether you get a good finish or scrap. The BX40i's heavy casting and box ways give it the stability these operations demand.

The WinMax control is a genuinely differentiating feature on a boring mill. Traditional boring mills run on Fanuc, Siemens, or Heidenhain controls that require experienced G-code programmers. Hurco's conversational approach lets a skilled machinist program boring patterns, bolt circles, and face milling operations at the control without writing a line of code. For the one-off and low-volume work that horizontal boring mills typically handle, this saves significant programming time.

New BX40i machines price in the $350,000-$500,000 range, which is competitive with used Japanese boring mills of similar capacity. Used BX40i availability is limited as the model is relatively new in the market. The machine competes favorably with the Kuraki KBT-11DX and similar mid-range horizontal boring mills.

Full Specifications

Parameter	Value
X-Axis Travel	2,000 mm (78.7 in)
Y-Axis Travel	1,600 mm (63 in)
Travel Z Quill	600 mm (23.6 in)
Travel W Table	1,500 mm (59.1 in)
Spindle Bore Diameter	130 mm (5.1 in)
Table Size	41.3 x 27.6 in (1,050 x 700 mm)
Table Indexing	360° (1° increments)
Max Table Load	5,000 kg (11,023 lb)
Spindle Speed	3,000 RPM
Spindle Taper	BT 50
Spindle Motor Power	38.9 hp @ 2,870 rpm (29 kW @ 2,870 rpm)
Rapid Traverse Xy	12 m/min (472 IPM)
Tool Capacity	30
Guideway Type	Box ways (all axes)
CNC Control	Hurco WinMax
Machine Weight	20,062 lbs (9,100 kg)
Travels Capacityx Y Z Axis Travel	40.2 x 27.6 x 19.7 in (1,020 x 700 x 500 mm)
Spindle Nose To Table	7 / 27 in (178 / 678 mm)
Max Weight On Table	2,204 lbs (1,000 kg)
T Slot Size	6 x 0.7 in (6 x 18 mm)
Spindlemax Spindle Speed	20,000 rpm
Spindle Torque	73.2 ft. lbs (99.3 Nm @2,790 RPM)
Tool Changertool Type	HSK 63A
Max Tool Diameter	3.15 in (80 mm)
Max Tool Length	11.8 in (300 mm)
Max Tool Weight	15.4 lb. (7 kg)
Feedratesrapid Traverse Xyz Axis	1,417 in/min (36 m/min)
Max Programmable Feedrate	1,417 in/min (36 m/min)
Sizemax Operating Floor Space	159.4 x 109.3 in (4,048 x 2,865 mm)
Machine Height	112.8 in (2,865 mm)

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

Strengths & Limitations

Strengths

WinMax conversational control on a horizontal boring mill is unique in the industry — reduces programming time dramatically for the one-off work these machines typically handle
130 mm spindle bore with 600 mm quill travel provides true boring mill capability for deep-hole boring and facing operations with extended tooling
360-degree rotary table enables multi-face machining in a single setup, eliminating accumulated fixturing error on complex workpieces
Box-way construction on all axes delivers the vibration damping essential for chatter-free boring operations at extended tool overhangs
5,000 kg table capacity handles most mid-range industrial workpieces — pump housings, gearboxes, valve bodies, and similar components
Competitive pricing against used Japanese boring mills while offering a new machine with warranty, modern control, and full parts support

Limitations

3,000 RPM maximum spindle speed is adequate for boring and face milling but limits performance with smaller-diameter tools that benefit from higher speeds
40-tool magazine is smaller than the 60-100+ tool capacity offered by many competing horizontal boring mills
2,000 mm X-travel may be limiting for shops working on larger castings and weldments — consider the BX50i for more travel
BT 50 taper rather than ISO 50 or HSK-A100 may not align with existing tooling in shops transitioning from other boring mill brands
Relatively new entry in the boring mill market — less track record and fewer used units available compared to established builders like Kuraki and Toshiba

Best For

Job shops that need horizontal boring capability but cannot justify a dedicated boring mill programmer — the WinMax control democratizes the machine Pump and valve manufacturers machining housings, bodies, and manifolds that require boring and facing on multiple sides Gearbox and transmission manufacturers that need to bore aligned holes and machine mounting faces in a single setup Mold shops that need to machine large mold bases and die shoes on multiple faces without reclamping General machining shops looking to expand capability into horizontal boring work without the steep learning curve of traditional boring mill controls Maintenance and repair operations machining replacement parts for heavy equipment where boring mills provide the multi-face access needed

Frequently Asked Questions

01 What does a Hurco BX40i cost new and used?

New BX40i machines typically price between $350,000 and $500,000 depending on options including probing, additional rotary table features, and coolant systems. Used BX40i availability is very limited as this is a relatively recent addition to Hurco's lineup. For comparison, used Japanese horizontal boring mills of similar capacity (Kuraki, Toshiba) from the 2010s trade in the $150,000-$300,000 range, but with older controls and potentially limited parts support.

02 How does the BX40i compare to a traditional horizontal boring mill?

The BX40i offers modern CNC capability and the WinMax conversational control in a package that competes with traditional builders. Where it differs is programming ease — an experienced VMC operator can transition to the BX40i much faster than to a Fanuc or Siemens-equipped boring mill. The trade-off is that the BX40i may not match the extreme rigidity and spindle torque of dedicated heavy-duty boring mills from Kuraki or Toshiba at the largest end of the spectrum.

03 Can the BX40i handle heavy boring operations?

Yes. The 130 mm spindle bore with 600 mm quill travel, combined with box-way construction and 30 kW spindle power, provides genuine boring capability. It handles standard boring operations in steel, cast iron, and aluminum effectively. For extremely deep boring operations (1,000mm+) or very large diameter bores in hard materials, shops may need the additional quill travel and torque of the larger BX50i or a dedicated heavy-duty platform.

04 What's the advantage of a boring mill over a large VMC?

The fundamental advantage is multi-face access. A boring mill's horizontal spindle and rotary table let you machine multiple faces of a workpiece in a single setup, while a VMC can only reach the top face and requires reclamping for each additional face. This eliminates the accumulated positional error from multiple setups and dramatically reduces handling time on parts like pump housings, gearbox cases, and valve bodies. The boring mill's quill also provides deep-reach capability that VMCs cannot match.

05 Is the WinMax control suitable for boring mill work?

WinMax includes specific boring mill features: bolt circle patterns, line boring operations, face milling with automatic tool radius compensation, and rotary table positioning with angular programming. The conversational interface makes these operations accessible without G-code expertise. For complex simultaneous multi-axis contouring, you'll still want CAM software, but the vast majority of boring mill work — boring, facing, drilling, tapping — is well served by conversational programming.