Kitamura Kitamura Supercell-300G
Key Specifications
X Travel
Y Travel
Z Travel
Max Spindle
Spindle Taper
Tool Capacity
Overview
The Kitamura Supercell-300G is a compact 5-axis horizontal machining center designed for high-volume unattended production of small precision parts. The horizontal spindle orientation combined with a trunnion-style A/B rotary axis configuration provides full 5-axis simultaneous machining capability with excellent chip evacuation -- a critical advantage over vertical 5-axis machines when cutting deep pockets and complex cavities in production environments.
The Supercell-300G features 460 x 510 x 460 mm (18.1 x 20.1 x 18.1 in) X/Y/Z travels with a 200 mm (7.9 in) diameter pallet and A-axis tilt range of -120 to +30 degrees. The 20,000 RPM spindle with NST No. 40 taper delivers high-speed finishing capability, while rapid traverse rates of 60 m/min (2,362 ipm) on all three linear axes minimize non-cutting time. Positioning accuracy is +/-0.001 mm per full stroke with repeatability of +/-0.0005 mm -- specifications that place the 300G among the most accurate compact 5-axis platforms available.
The standout feature of the Supercell-300G is its massive tool and pallet capacity: 174 tools standard (expandable to 230, 258, or 314 tools) and a 20-station automatic pallet changer expandable to 80 pallets. This combination enables true lights-out manufacturing where dozens of different parts can be queued and machined without operator intervention. For medical device, dental, and small aerospace component manufacturers, this level of automation in a compact 5-axis horizontal format is extremely rare.
Kitamura's hand-scraping process ensures the Supercell-300G maintains its geometric accuracy over years of production use. At $400,000-$650,000 new depending on pallet and tool configuration, the 300G competes with the Makino a40, Matsuura MAM72-35V, and Yasda YMC 430 in the compact 5-axis horizontal automation space.
Full Specifications
| Parameter | Value |
|---|---|
| X-Axis Travel | 460 mm (18.1″) |
| Y-Axis Travel | 510 mm (20.1″) |
| Z-Axis Travel | 460 mm (18.1″) |
| Pallet Diameter | 200 mm (7.9 in) |
| Max Pallet Height | 200 mm (7.9 in) |
| Max Spindle Speed | 20,000 min⁻¹ |
| Spindle Taper | NST No. 40 |
| Tool Capacity | 174 Pcs. – 100, 230, 258, 314 Tools Optional |
| Pallet Changer | 20-station APC (up to 80 pallets optional) |
| Rapid Traverse Rate | 60 m/min (2,362 ipm) all axes |
| A Axis Range | -120 to +30 degrees |
| B Axis Range | 0 to 360 degrees (continuous) |
| Positioning Accuracy | ±0.001 mm (±0.000039″)/Full stroke |
| Repeatability | ±0.0005 mm (±0.00002″) |
| Power Supply | 55 KVA, 200V AC, 3-phase |
| CNC Control | Kitamura Arumatik-Mi |
| Rapid Traverse X | 60 m/min (2,362 ipm) |
| Rapid Traverse Y | 60 m/min (2,362 ipm) |
| Rapid Traverse Z | 60 m/min (2,362 ipm) |
| Table Size | Ø200 mm (Ø7.9″) |
| Cnc Control | Arumatik-Mi |
| Electrical | 55 KVA, 200 v AC, 3 Phase |
Specifications sourced from kitamura-machinery.com — verified 2026-03-28
Strengths & Limitations
Strengths
- 20-station pallet changer expandable to 80 pallets enables true lights-out production of diverse small part families
- 174-tool standard magazine expandable to 314 tools eliminates tool change constraints on complex multi-part programs
- Horizontal spindle orientation provides superior chip evacuation for deep pocket and cavity machining
- Hand-scraped mating surfaces deliver +/-0.001 mm positioning accuracy for tight-tolerance medical and aerospace components
- 60 m/min rapid traverse on all axes minimizes non-cutting time in high-volume production cycles
- Compact 200 mm pallet format optimized for small precision parts with high automation density
Limitations
- 200 mm pallet diameter strictly limits maximum workpiece size -- medium and large parts cannot be accommodated
- High initial investment of $400,000-$650,000 requires sufficient production volume to justify the automation capability
- Arumatik-Mi control requires retraining for shops standardized on Fanuc or Siemens platforms
- Kitamura's service network is smaller than major Japanese competitors in most North American regions
Best For
Frequently Asked Questions
01
The 300G uses a smaller 200 mm pallet (vs 350 mm on the 400G) and is optimized for very small parts. The 300G has faster rapids at 60 m/min vs 50 m/min, and a higher standard tool count of 174 vs 190. The 300G's 20-station pallet changer is expandable to 80 pallets, while the 400G expands to 120. Choose the 300G for high-volume small parts; choose the 400G for larger workpieces.
02
New Supercell-300G machines typically price between $400,000 and $650,000 depending on pallet count, tool magazine configuration, and automation options. The 80-pallet configuration with 314 tools represents the highest investment but also the greatest lights-out capability.
03
Yes, this is the machine's primary design purpose. With up to 80 pallets and 314 tools, the Supercell-300G can process dozens of different parts without operator intervention. Combined with in-process probing, tool breakage detection, and Kitamura's thermal stability, shops routinely run 8-16 hour unattended shifts.
04
Horizontal spindle orientation allows chips to fall away from the cut by gravity, improving surface finish and tool life. This is particularly important for deep pocket machining, cavity work, and production environments where chip evacuation reliability affects unattended operation. The trade-off is typically higher machine cost and a larger footprint.
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