Koike Aronson MasterGraph Katana MGK
Image: koike.com, Koike Aronson
Key Specifications
Rapid Traverse
effective cutting width 5 slave stations
effective cutting width 2 slave stations
effective cutting length
distance between floor mount pads
machine rail gauge
How much does the Koike Aronson MasterGraph Katana MGK cost?
Price estimate
We do not have a price for the Koike Aronson MasterGraph Katana MGK 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 Koike Aronson MasterGraph Katana MGK is the MasterGraph gantry with Koike's own Katana control in place of a third-party CNC. It is listed as the MGK 2500, MGK 3100 and MGK 3700, with 96 in (2,438 mm) to 144 in (3,658 mm) of effective cutting width when 5 slave stations are fitted, and is offered with a 460 amp XPR plasma system.
The automation of the torch stations is what marks out the MGK. The slave carriage band clamp is pneumatic, with air cylinders that position and space up to 8 oxy-fuel and plasma torches automatically. Three oxy-fuel systems are listed: Hi-Lo, Koike's Autogas, and the IHT system with automatic process control. With Autogas the operator selects tip size and plate thickness and the gas pressures are set from the Katana CNC.
Capacity figures are close to the MasterGraph EX2. Rapid traverse is 1,400 ipm (35.6 m/min), maximum contour speed 600 ipm (15.2 m/min), and the oxy-fuel gas systems are rated for 10 in (254 mm) of thickness. The MGK lists up to 10 tools and 8 slave stations, one more of each than the EX2, with 8 oxy-fuel stations and 2 plasma or marker stations.
For beveling, the optional 3D-X Full Contour Bevel Head performs A, V, X, Y and K bevels, and Koike states that the drives and gearboxes give enough torque to countersink holes with it. The torch height control has a programmable lifter speed of 1,000 ipm (25.4 m/min). Machine voltage is 208-240 VAC 3-phase at 30 AMP, where the MasterGraph EX2 is a 480 VAC machine, so check the building supply before choosing between them.
Full Specifications
| Parameter | Value |
|---|---|
| Effective Cutting Width 5 Slave Stations | MGK 2500: 96 in (2,438 mm); MGK 3100: 120 in (3,048 mm); MGK 3700: 144 in (3,658 mm) |
| Effective Cutting Width 2 Slave Stations | MGK 2500: 120 in (3,048 mm); MGK 3100: 144 in (3,658 mm); MGK 3700: 168 in (4,267 mm) |
| Effective Cutting Length | 250 in (6,350 mm) (expandable) |
| Distance Between Floor Mount Pads | MGK 2500: 144 3/4 in (3,677 mm); MGK 3100: 168 3/4 in (4,286 mm); MGK 3700: 192 3/4 in (4,896 mm) |
| Machine Rail Gauge | MGK 2500: 162 3/4 in (4,134 mm); MGK 3100: 186 3/4 in (4,743 mm); MGK 3700: 210 3/4 in (5,353 mm) |
| Machine Width | MGK 2500: 223 1/4 in (5,671 mm); MGK 3100: 247 1/4 in (6,280 mm); MGK 3700: 271 1/4 in (6,890 mm) |
| Rapid Traverse Rate | 1,400 ipm (35.6 m/min) |
| Contour Speed Max | 600 ipm (15.2 m/min) |
| CNC Control | Katana |
| Drive System | AC servo |
| Max Number of Tools | 10 |
| Max Slave Stations | 8 |
| Max Plasma or Marker Stations | 2 |
| Max Oxy Fuel Stations | 8 |
| Plasma Systems | 460 amp XPR plasma system |
| Oxy Fuel Gas System | Hi-Lo, Autogas, IHT with APC (10 in (254 mm) max thickness) |
| Torch Height Control Lifter Speed | 1,000 ipm (25.4 m/min) (programmable, Koike integrated sensor THC) |
| Power Requirement | 208-240 VAC 3-phase/30 AMP |
Specifications sourced from koike.com — verified 2026-10-05
Strengths & Limitations
Strengths
- Pneumatic band clamp auto-positions and spaces up to 8 oxy-fuel and plasma torches
- Katana control with remote diagnostics; Autogas sets gas pressures from tip size and plate thickness
- Up to 10 tools and 8 slave stations
- Optional 3D-X Full Contour Bevel Head for A, V, X, Y and K bevels and countersinking
- 1,400 ipm (35.6 m/min) rapid traverse and 600 ipm (15.2 m/min) maximum contour speed
Limitations
- Narrowest model is the MGK 2500 with 96 in (2,438 mm) of effective cutting width at 5 slave stations; the MasterGraph EX2 goes down to 60 in (1,524 mm)
- Plasma or marker stations are limited to 2
- The contour bevel head, IHT system and Autogas are options to specify
- Machine voltage is 208-240 VAC 3-phase; the MasterGraph EX2 is the 480 VAC machine of the two
Best For
Frequently Asked Questions
01
Katana is Koike's own CNC. On this machine it is the listed machine CNC, with ProNest software, and it also runs the Autogas system: the operator selects tip size and plate thickness and the gas pressures are adjusted from the control. Remote diagnostics and servicing are part of it.
02
Three: the MGK 2500, MGK 3100 and MGK 3700. With 5 slave stations the effective cutting widths are 96 in (2,438 mm), 120 in (3,048 mm) and 144 in (3,658 mm); with 2 slave stations they are 120 in (3,048 mm), 144 in (3,658 mm) and 168 in (4,267 mm). Effective cutting length is 250 in (6,350 mm) and expandable.
03
The table lists a maximum of 10 tools, 8 slave stations, 8 oxy-fuel stations and 2 plasma or marker stations. The pneumatic band clamp positions and spaces up to 8 oxy-fuel and plasma torches automatically.
04
Hi-Lo, Autogas and the IHT system with automatic process control, all listed under a 10 in (254 mm) maximum thickness. The standard oxy-fuel station uses a motorized lifter with a 6-inch (150 mm) stroke, and all stations are controlled from the operator console.
05
The machine voltage is 208-240 VAC 3-phase at 30 AMP. The plasma system is a separate load, and a 460 amp source needs its own service. The MasterGraph EX2, by comparison, is listed at 480 VAC 3-phase at 30 AMP.
More from Koike Aronson
Other CNC Plasma Cutting
Esprit Automation Rotomax
STV CNC Optimum 5
Kinetic K5600
Kjellberg iQ 3000
Lincoln Electric Tomahawk 2500
