Bourn & Koch MT³

Q: How much does the Bourn & Koch MT³ cost?

The price estimate for the Bourn & Koch MT³ is uncertain: we have no price for it that we can cite and no estimate we can stand behind, so we give no figure. Configuration, tooling, automation and installation move the final price substantially. A specific price can be requested at https://machinetoolindex.com/machines/bourn-koch-mt3#price; the request is passed to Bourn & Koch or an authorised dealer.

Specs verified 2026-10-04 · bourn-koch.com Updated 2026-10-04

Key Specifications

direction

Vertical

standard table diameter

42.00 in (1,066.8 mm)

max table diameter

48.00 in (1,219.2 mm)

max swing

49.00 in (1,244.6 mm)

z axis travel

36.00 in (914.4 mm)

x axis travel

30.00 in (762 mm)

How much does the Bourn & Koch MT³ cost?

Price estimate

Uncertain

We do not have a price for the Bourn & Koch MT³ that we can stand behind, so we show no number. Configuration, options and installation move the final price a long way: a quote is the reliable figure.

Overview

The Bourn & Koch MT³ is a CNC vertical grinder that can also mill, drill, tap and turn. The name is short for moving table modular technology machine tool. Its standard table is 42.00 in (1,066.8 mm) in diameter, maximum swing is 49.00 in (1,244.6 mm), and the workpiece can weigh up to 4,400 lb (2,000 kg).

The layout is unusual for a vertical grinder, because it comes from a rotary surface grinder: Bourn & Koch says the machine is built off of the Blanchard 22AD-42 platform and uses its core components. The table moves 30.00 in (762 mm) in X on a precision servo-cylinder assembly, and the spindle head travels 36.00 in (914.4 mm) in Z on the column. It is listed as 2-axis CNC, with virtual Y-axis programming for off axis machining and grinding. The work spindle is infinitely variable over 0-100 rpm, with 200 rpm optional.

The spindle is where the modular idea shows. It can be swapped out, manually or by an optional robot cell that changes tools and spindles, so one machine can carry a grinding spindle for one job and a milling or turning spindle for the next. Grinding spindle power is 40.2 hp (30 kW). Maximum rotating tool diameter is 6.7 in (170.18 mm) on an HSK-50 connection, and the maker notes that this limit depends on connection size, so confirm wheel size for the spindle you intend to order.

A Fanuc CNC control is fitted, the model depending on the options chosen, with Bourn & Koch's conversational HMI; functions can also be programmed through CAM software or M & G code. A diamond dresser and automatic lubrication are standard. A chiller, linear scales for the X and Z axes, a roll dresser for CBN or vitrified grinding wheels and a coolant filtration system with integral chip conveyor are options. The machine weighs approximately 36,000 lb (16,330 kg) and is listed for 480 Volt / 3 Phase / 60 Hertz power.

Full Specifications

Parameter	Value
Direction	Vertical
Standard Table Diameter	42.00 in (1,066.8 mm)
Max Table Diameter	48.00 in (1,219.2 mm)
Max Swing	49.00 in (1,244.6 mm)
Z Axis Travel	36.00 in (914.4 mm)
X Axis Travel	30.00 in (762 mm)
Work Spindle Speed	0-100 rpm, infinitely variable (200 rpm optional)
Grinding Spindle Power	40.2 hp (30 kW)
Max Workpiece Weight	4,400 lb (2,000 kg)
Max Rotating Tool Diameter	6.7 in (170.18 mm) (HSK-50), connection size dependent
Machine Weight	approx. 36,000 lb (16,330 kg)
CNC Control	Fanuc CNC control (model dependent on options chosen)
Power Requirement	480 Volt / 3 Phase / 60 Hertz

Specifications sourced from bourn-koch.com — verified 2026-10-04

Strengths & Limitations

Strengths

One platform for vertical grinding, milling, drilling, tapping and turning through interchangeable spindles
40.2 hp (30 kW) grinding spindle on a column of stress-relieved steel weldment with concrete polymer
49.00 in (1,244.6 mm) maximum swing and a 4,400 lb (2,000 kg) maximum workpiece weight
Virtual Y-axis programming for off axis machining and grinding is a standard feature
Optional robot cell for tool and spindle change

Limitations

Maximum rotating tool diameter is 6.7 in (170.18 mm) on HSK-50, which caps wheel size
Linear scales for the X and Z axes are optional equipment, not standard
Work spindle speed is 0-100 rpm as standard; 200 rpm is an option
The coolant filtration system with integral chip conveyor and the roll dresser are optional equipment
Electrical supply is listed as 480 Volt / 3 Phase / 60 Hertz only

Best For

Vertical ID and OD grinding within 49.00 in (1,244.6 mm) of swing Parts that need turning or milling and grinding on one machine Workpieces up to 4,400 lb (2,000 kg) Shops that want a vertical grinder kept busy with milling and turning between grinding jobs

Frequently Asked Questions

01 What does MT³ stand for?

Bourn & Koch says MT³ is short for moving table modular technology machine tool. The table moves on the X-axis, 30.00 in (762 mm), and the spindle system is interchangeable, so the machine can be set up for grinding, milling, drilling, tapping or turning.

02 How large a part fits on the MT³?

The standard table diameter is 42.00 in (1,066.8 mm) and the maximum table diameter is 48.00 in (1,219.2 mm). Maximum swing is 49.00 in (1,244.6 mm), Z-axis travel is 36.00 in (914.4 mm) and the maximum workpiece weight is 4,400 lb (2,000 kg).

03 Is the MT³ related to the Blanchard grinders?

Yes. Bourn & Koch states that it is built off of the Blanchard 22AD-42 platform, using the core components of that machine with an interchangeable spindle system. The column is a stress-relieved steel weldment with concrete polymer, and the spindle head and table are mounted on preloaded precision linear roller guide ways.

04 What control does the MT³ use?

A Fanuc CNC control, with the model dependent on the options chosen, plus the Bourn & Koch Human Machine Interface. The conversational HMI guides the operator through the grinding process. Further functions can be programmed with CAM software or M & G code, and a remote pendant control is optional.

05 Can the MT³ change its own spindles?

With the optional robot cell for tool and spindle change, yes. Without it the spindle is swapped manually. Standard milling, grinding and turning spindles are listed as optional equipment, along with custom spindles per application.