Kitamura Machinery Horizontal Machining Centers

Kitamura Kitamura Mycenter-HX300iG

$350,000 - $500,000 Updated 2026-03-19

Key Specifications

X Travel

460 mm (18.1 in)

Y Travel

510 mm (20.1 in)

Z Travel

560 mm (22 in)

Max Spindle

15,000 RPM (30,000 RPM optional)

Spindle Taper

NST No. 40 (HSK-A63 optional)

Tool Capacity

50-tool ATC (expandable to 62, 100, 150, 200, 300)

Overview

The Kitamura Mycenter-HX300iG is a 300 mm pallet horizontal machining center that bridges the gap between Kitamura's compact HX250iG and the mid-size HX400iG. Built with Kitamura's signature hand-scraped construction, the HX300iG targets shops machining small-to-medium prismatic components in aerospace, medical, and precision industrial applications where four-sided access and superior chip evacuation provide tangible advantages over vertical machining approaches.

The HX300iG delivers X/Y/Z travels of 460 x 510 x 560 mm (18.1 x 20.1 x 22 in) on a 305 x 305 mm (12 x 12 in) pallet, with a 15,000 RPM spindle on an NST 40 taper (HSK-A63 optional). A 30,000 RPM spindle option is available for high-speed aluminum and electrode work. Positioning accuracy of +/-0.001 mm (+/-0.000039 in) full stroke with repeatability of +/-0.0005 mm (+/-0.00002 in) places this machine among the most accurate in the 300-pallet HMC class. Rapid traverse rates of 60 m/min (2,362 ipm) on all axes match the speed of much larger machines.

The 50-tool ATC comes standard with field-expandable options up to 300 tools, making the HX300iG capable of handling extremely complex parts or extended lights-out production runs without tool change interruptions. Tool changes complete in 1.3 seconds (T-T) and 2.5 seconds (C-C) minimum. The B-axis rotary table indexes at 54,000 degrees/min for rapid repositioning between faces.

At an estimated $350,000-$500,000, the HX300iG competes with the Makino a40 and Brother Speedio W1000Xd1 in the compact-to-mid-size HMC segment. Kitamura's hand-scraped accuracy and expandable tool magazine provide a compelling alternative for shops that prioritize long-term geometric accuracy and production flexibility over brand name recognition.

Full Specifications

Parameter	Value
Pallet Size	305 x 305 mm (12 x 12 in)
X-Axis Travel	460 mm (18.1 in)
Y-Axis Travel	510 mm (20.1 in)
Z-Axis Travel	560 mm (22 in)
Max Spindle Speed	15,000 RPM (30,000 RPM optional)
Spindle Taper	NST No. 40 (HSK-A63 optional)
Tool Capacity	50-tool ATC (expandable to 62, 100, 150, 200, 300)
Tool Change Time	1.3 sec (T-T) / 2.5 sec (C-C)
Rapid Traverse Rate	60 m/min (2,362 ipm)
B Axis Rapid	54,000 deg/min
Positioning Accuracy	+/-0.001 mm (+/-0.000039 in) full stroke
Repeatability	+/-0.0005 mm (+/-0.00002 in)
Power Requirement	45 KVA
CNC Control	Kitamura Arumatik-Mi

Specifications sourced from kitamura-machinery.com — verified 2026-03-28

Strengths & Limitations

Strengths

Positioning accuracy of +/-0.001 mm full stroke is among the best in the 300-pallet HMC class
50-tool ATC expandable to 300 tools supports complex parts and extended lights-out production
60 m/min rapids on all axes match or exceed machines in larger pallet classes
30,000 RPM optional spindle enables high-speed aluminum and electrode machining
Hand-scraped mating surfaces provide long-term geometric accuracy retention exceeding 15 years
HSK-A63 spindle option available for shops standardized on HSK tooling

Limitations

305 mm pallet limits workpiece size to small-to-medium prismatic components
Arumatik-Mi control is less common than Fanuc — operator retraining typically required
Kitamura North American dealer network is limited compared to Makino or Mazak
Premium pricing versus Korean and Taiwanese compact HMCs requires precision-critical work to justify

Best For

Aerospace shops machining small structural components and fittings requiring 4-sided access Medical device manufacturers producing implants and instruments with tight multi-face tolerances Precision job shops seeking compact HMC capability with large tool magazine flexibility Shops transitioning from VMC to HMC for improved chip management on small prismatic parts Production environments requiring lights-out capability with up to 300-tool ATC capacity

Frequently Asked Questions

01 What is the advantage of the HX300iG over the smaller HX250iG?

The HX300iG provides significantly more travel (460x510x560 mm vs 305x305x330 mm), a 40-taper spindle for heavier cutting loads, and even better positioning accuracy at +/-0.001 mm versus +/-0.002 mm. The larger pallet and work envelope handle medium-sized prismatic parts that will not fit on the HX250iG's 254 mm pallet.

02 Can the HX300iG run lights-out with a 300-tool magazine?

Yes. The expandable ATC supports up to 300 tools, enabling extended unattended production runs. Combined with the 2-station APC and Arumatik-Mi control scheduling capabilities, the HX300iG can run complex multi-part programs through an entire shift without operator intervention.

03 How does the HX300iG compare to the Makino a40?

Both are precision compact HMCs targeting similar applications. The Makino a40 has a stronger dealer network and brand presence. The Kitamura offers comparable accuracy with hand-scraped construction, more flexible tool magazine expansion options, and typically lower pricing. Both are strong choices for precision small-part HMC work.

04 Is the HSK-A63 spindle option worth the upgrade?

HSK-A63 provides better concentricity and balance at high speeds versus the standard NST 40 taper. Shops already standardized on HSK tooling or running the 30,000 RPM spindle option will benefit most. For standard machining at 15,000 RPM with existing CAT 40 tooling, the NST 40 taper performs well.