Quintax G3

$200,000 - $350,000 Updated 2026-03-17

Key Specifications

Spindle Taper

HSK-63F

Rapid Traverse

25 m/min (984 ipm)

Spindle Power

15 kW (20 hp)

machine type

Fixed-gantry CNC routing center

x travel

2,500 mm (98 in) — moving table

y travel

2,000 mm (79 in)

Overview

The Quintax G3 is a fixed-gantry CNC routing center designed for high-accuracy panel processing, pattern production, and composite routing operations where a stationary gantry over a moving table provides superior rigidity compared to moving-gantry alternatives. Quintax developed the G3 for manufacturers who prioritize machining accuracy and surface finish quality in flat-panel and slab routing applications — including stone, solid surface, composites, and dense structural foam — where the superior rigidity of a fixed gantry directly translates to better part quality.

The G3 architecture places a rigid fixed gantry bridge over a moving table that provides the primary X-axis motion. This design shifts the mass and inertia of the workpiece rather than the gantry structure during X-axis traversal, which at the table's relatively lower traverse speeds provides more stable cutting conditions for precision routing applications. The gantry's fixed nature allows Quintax to build it with substantially heavier cross-section than a comparable moving-gantry machine, increasing rigidity and damping characteristics. The Y and Z axes are carried by the gantry and drive the routing head across the work area.

The G3 spindle head is mounted on a Z-axis ram with precise linear guidance and can be equipped with multiple spindle configurations depending on application requirements. A 3-axis fixed-spindle configuration serves panel processing applications, while an optional tilting head or full 5-axis head can be specified for customers requiring angled routing capability in addition to standard 3-axis panel work. The machine's table incorporates a T-slot grid for fixture mounting and can be equipped with vacuum workholding zones for panel processing. Quintax sizes the G3's table to accommodate the typical slab and panel dimensions used in the stone, solid surface, and composite panel industries.

Quintax positions the G3 in production environments where part quality and dimensional repeatability are the primary selection criteria — fabricators of precision composite structures, architectural stone fabricators producing complex carved profiles, and solid surface manufacturers producing contoured components that require routing accuracy beyond what moving-gantry routers reliably achieve. The machine is supported by Quintax's US-based team with application expertise in the material categories the G3 serves, providing process development support and post-processor configuration for integration with CAM systems used by precision routing customers.

Full Specifications

Parameter	Value
Machine Type	Fixed-gantry CNC routing center
X Travel	2,500 mm (98 in) — moving table
Y Travel	2,000 mm (79 in)
Z Travel	500 mm (19.7 in)
Spindle Speed	Up to 18,000 RPM
Spindle Motor Power	15 kW (20 hp)
Spindle Taper	HSK-63F
Rapid Traverse Rate	25 m/min (984 ipm)
Tool Changer	Automatic, 12-position
CNC Control	Siemens Sinumerik 840D sl
Table	T-slot grid with optional vacuum zones, moving table design
Machine Weight	Approx. 9,000 kg (19,800 lb)
Manufacturer	Rapido
Model	21-4
Power Requirement	112 kW

Specifications sourced from machinio.com — verified 2026-03-28

Strengths & Limitations

Strengths

Fixed gantry architecture provides superior structural rigidity and vibration damping compared to moving-gantry routers of equivalent size, directly improving surface finish quality and dimensional accuracy in precision routing applications
Moving table design simplifies workpiece loading and unloading for heavy stone slabs, composite panels, and dense foam blocks, with crane access possible from above without gantry clearance limitations
Wide Y-axis travel of 2,000 mm accommodates large stone slabs, oversized composite panels, and wide solid surface sheets that exceed the Y capacity of narrower production routers
Siemens Sinumerik 840D sl control provides a high-capability programming environment with broad CAM system compatibility for precision 3D routing programs in stone, composite, and solid surface applications
Optional tilting or 5-axis head configurations allow the G3 platform to be specified for angled stone cutting, bevel routing, and 5-axis composite contouring in addition to standard 3-axis panel processing

Limitations

The moving table design requires a longer facility footprint than a comparably sized moving-gantry machine, as the table must travel its full X-axis stroke beyond the gantry in both directions
Table traverse speed is inherently lower than gantry traverse speed in moving-gantry machines at equivalent power; for high-speed 3-axis panel nesting applications, moving-gantry routers are typically faster
The G3's higher structural mass and more complex construction result in a higher price point than moving-gantry alternatives of similar working envelope size

Best For

Architectural stone fabricators routing complex CNC-carved stone panels, sink cutouts in granite and marble countertops, and decorative relief carvings requiring routing accuracy beyond what moving-gantry stone routers achieve Precision composite panel manufacturers producing structural composite panels, aerospace interior panels, and industrial composite structures where dimensional accuracy and surface finish quality are critical quality requirements Solid surface fabricators producing contoured architectural elements, curved reception desk panels, and complex 3D solid surface components that require the rigidity of a fixed gantry for consistent finish routing Pattern shops and model makers requiring a high-rigidity routing platform for accurate 3D contour machining in dense foam, tooling board, and model board with surface finish quality sufficient for direct casting patterns

Frequently Asked Questions

01 What is the advantage of a fixed gantry over a moving gantry for CNC routing?

In a fixed-gantry design, the gantry bridge is stationary and the work table moves in X. The gantry can be built with a much heavier cross-section because it does not need to accelerate during machining — its mass contributes to stability rather than limiting dynamic performance. This results in higher static and dynamic rigidity, better vibration damping, and improved surface finish quality compared to a moving-gantry machine of equivalent size. For hard materials like stone and dense composites, and for precision routing where surface finish is critical, fixed-gantry machines offer meaningful accuracy advantages.

02 Can the Quintax G3 be configured for 5-axis routing?

Yes. The G3 platform can be specified with an optional tilting spindle head for 4-axis capability or a full 5-axis electrospindle head for simultaneous 5-axis contouring. The 5-axis G3 configuration is suited for bevel cutting in stone, angled composite panel edges, and 3D contoured pattern machining requiring tool-normal orientation. Customers should specify head configuration at order as it affects gantry sizing and Z-axis ram design. Contact Quintax for application-specific head configuration recommendations.

03 What materials does the G3 handle best?

The Quintax G3 is well suited for routing and milling of stone and engineered stone (granite, marble, quartzite, Corian Stone), solid surface materials, dense rigid foam and tooling board, fiber-reinforced composites, MDF, and structural plastics. Its rigid fixed gantry provides the stability needed for hard material routing where tool forces and vibration would deflect a lighter moving-gantry structure. It also handles precision routing in soft materials where high surface finish quality is the primary requirement.

04 How is the G3 table configured for workholding?

The G3 table includes a T-slot grid across its full surface for fixture and clamp mounting, standard for stone and composite applications where mechanical clamping is preferred. Vacuum workholding zones can be integrated into the table for panel processing applications where mechanical clamping is not appropriate. For stone fabrication, typical workholding uses bridge clamps and T-slot fixtures. For composite panels, vacuum spoilboard zones provide the broad distributed clamping needed for large thin composite sheets.

05 What is the facility footprint requirement for the Quintax G3?

The G3's moving table design means the machine requires a floor area longer than the gantry width plus approximately twice the X-axis table travel — the table must extend fully beyond the gantry in both load/unload position and full machining travel. For a G3 with 2,500 mm X travel, total facility length requirement along the X axis is typically 6 to 7 meters to accommodate the table overhang in both positions. Width requirements are determined by the gantry span plus clearance on both sides for service access. Quintax provides detailed facility drawings during the pre-sale process.