BLOQ4³ Mikron – Ultimate Precision in the Micron Range

The BLOQ4³ Mikron is a highly specialized ultra-precision CNC milling machine, engineered for micromachining, watchmaking, and the production of high-accuracy small components.
It is designed for users where material removal is not the priority – but absolute accuracy, finest surface finishes, and repeatable results in the micron range.

At the core of the machine is a monolithic Castolith™ cast iron frame – completely free of joints or welded structures. Combined with stress-relieved and precision-machined steel components, this results in an exceptionally rigid and vibration-damped platform, forming the foundation for stable, high-precision machining processes.

All critical functional surfaces – especially the linear guide mounting areas – are precision ground. The solid steel worktable is also ground and intentionally designed without T-slots to ensure maximum flatness and rigidity. Instead, the machine is prepared for 3R Macro zero-point clamping systems, enabling fast and highly repeatable setups.

For micromachining applications, the machine is equipped with a high-speed Nakanishi spindle running up to 60,000 rpm. With a runout of just 0.001 mm, it is perfectly suited for micro tools and ultra-fine surface finishes.

The motion system is based on C3 ground ball screws (1202) combined with TBI linear guideways. Together with closed-loop servo drives, this ensures extremely smooth motion, minimal backlash, and highly precise interpolation – essential for complex geometries at micron-level tolerances.

The machine is controlled by the standalone Dominator Compact 32-bit controller, running NCSender Pro (full licensed version included). A 16" touchscreen is integrated, allowing modern and direct machine operation without the need for an external computer.

The BLOQ4³ Mikron is built with a strong focus on precision assembly. Increased effort in alignment and calibration ensures long-term stability and consistent accuracy over time.

Technical accuracy:

• Resolution: 0.0005 mm
• Positioning accuracy: ≤ 0.008 mm
• Repeatability: ≤ 0.004 mm

With travels of 250 × 162 × 150 mm and a footprint of just 400 × 400 mm, the BLOQ4³ Mikron delivers industrial-grade precision in an exceptionally compact form factor.

It is the ideal solution for:

• Micromechanics
• Watchmaking
• Precision engineering
• High-accuracy prototyping

Starting at CHF 19,900.–, the BLOQ4³ Mikron sets a new benchmark in the field of compact ultra-precision CNC machines.

BLOQ4³ Mikron – when microns matter.

Castolith™ -Frame

The Castolith frame is a custom-engineered, monolithic machine structure cast entirely from a single block of Iron. In one unified casting process, the base frame, side gantry supports, lower enclosure, and integrated coolant and chip tray are formed - with no bolted-on parts or weld seams. 

After casting, the structure is annealed to relieve internal stresses, then precision-machined on all sides. The result is an exceptionally rigid, dimensionally stable frame, purpose-built to handle demanding industrial loads – a concept found nowhere else in this class of machine.

FEM Simulation: Verification of Structural Reserves of the BLOQ5³

To assess the frame stiffness, the Castolith™ frame of the BLOQ4³ (a little smaller than BLOQ5³ ) was subjected to a finite element analysis (FEM). The objective was not only to validate the structure under operating conditions but especially to evaluate the mechanical reserves under significantly elevated loads.

For this purpose, forces of 1000 N, several times the typical process forces, were applied in the X, Y, and Z directions at the mounting points of the X-portal. Deformations were evaluated relative to the mounting points of the Y linear guides - precisely at the mechanical interface where the frame structure must demonstrate its stiffness.

Simulation Results:

• X direction: 0.008 mm to 0.014 mm

• Y direction: 0.006 mm to 0.012 mm

• Z direction: 0.003 mm to 0.004 mm

Despite these deliberately exaggerated test loads, the Castolith™ frame showed only minimal deformations—a clear indication of its high inherent stiffness and structural robustness.

Conclusion:

The FEM simulation impressively demonstrates that the BLOQ4³ has generous stiffness reserves and remains dimensionally stable even under extreme loads. This provides an ideal foundation for reliable machining processes with high repeatability - even in dynamic applications.