4-axis CNC bridge saws

What the machine does

The 4X-3520 is a monoblock CNC bridge saw with four interpolated axes. X, Y, Z and the C-axis head rotation move together under CNC control, so the blade can run straight cuts, diagonal cuts and arcs at 90°. The A-axis head tilt runs from 0° to 90°. The CNC drives it to the angle in the program, locks it and then runs the cut. The tilt does not change during a cut.

In practice this covers most of a countertop job: perimeter cuts, 45° miters on straight edges, backsplash strips, fixed-angle bevels and standard shapes such as radius corners and angled ends.

Who it suits

• Countertop and vanity top shops cutting mostly rectangular parts with mitered edges.
• Shops replacing a manual saw with their first CNC bridge saw. Operators who know a manual saw learn DXF import and on-board CAM quickly.
• Fabricators who already have a CNC work center or waterjet for sink cutouts and shaped parts, and need more saw capacity.
• Cladding, flooring and step producers cutting strips, tiles and treads to size.

What it cuts

Granite, marble, quartzite, engineered quartz and porcelain / sintered stone, with the blade matched to the material. Typical parts are kitchen countertops, waterfall ends and aprons with mitered edges, vanity tops, stair treads and risers, and cladding strips. With a Ø625 mm blade the maximum cutting depth is about 200 mm at 90° and 130 mm at 45°.

How it differs from the 5-axis saw

The 5-axis CNC bridge saw interpolates the tilt as well. It can change the blade angle along a cut, so it makes variable bevels, inclined cuts on arcs and 3D shapes such as basins. The 4X-3520 cannot make those cuts.

For straight cuts and 45° miters on straight edges, both machines produce the same part. The difference is the sequence. On the 4-axis saw, a job with straight and mitered parts often runs in groups: all cuts at one tilt angle, then the next angle. On a 5-axis saw, one program mixes angles freely. The 4-axis vs 5-axis comparison covers this in detail, including a simple test: count the variable bevels and shaped cuts in your last 100 jobs. If the count is close to zero, the 4-axis saw is the better buy.

The 4-axis machine costs less for the same strokes and blade, and programming is simpler. Collision risk is lower because the head does not tilt and rotate at the same time.

Options

• Vacuum manipulator. Suction cups on the head lift cut pieces (up to 500 kg) and move them clear of the slab, so the next cut can run without the operator entering the working area.
• Digital camera. Photographs the slab on the worktable for slab photo layout, nesting and vein matching on screen.
• Hydraulic tilting table. Tilts the worktable for loading slabs from an A-frame with a crane or vacuum lifter.
• Laser line. Projects the blade path onto the slab for manual alignment and quick checks.
• Electrospindle. On request, for core drilling and sink cutouts at low volume. Shops with many cutouts per day are usually better served by a separate CNC work center or waterjet; see bridge saw vs saw-waterjet vs CNC router.

Control platform

The CNC control and servo drives are specified per order: Siemens, Fagor and other established platforms. Choose the platform your operators know and your local service technicians support. DXF import, on-board CAM for standard shapes, offline programming and teleservice are part of the package.

Installation requirements

The monoblock structure stands on a level industrial concrete floor and does not need foundation walls. A layout drawing with footprint, anchor points and supply connections comes with the quotation.

• Three-phase power: 400 V / 50 Hz, or 480 V / 60 Hz on request.
• Water supply for the blade and a settling or recycling system for slurry.
• Compressed air at 6 bar.
• Crane or forklift access for unloading, and a slab staging area next to the worktable.

Documentation supplied

• CE marking and the manufacturer’s EU Declaration of Conformity for machines delivered to the EU / EEA.
• Operating and maintenance manual.
• Electrical diagrams and spare parts list.
• Factory Acceptance Test report.
• Layout drawing and installation specification.

See compliance for how the 2027 EU Machinery Regulation affects these documents.

Buyer questions

Can I add the fifth axis later?

No. Interpolated tilt needs a different tilt drive, a stiffer head and different control licensing. If you expect variable bevels or shaped work within a few years, choose the 5-axis saw now.

Does the 4-axis saw make good miters in porcelain?

Yes, when the blade, feed rate and slab support are right. Miter quality depends on those more than on the axis count. Miter cuts run at a fraction of the straight-cut feed rate.

How is it priced?

Quoted per configuration. Worktable size, blade motor, control platform and options all change the price.

Next step

Send your job mix and slab sizes through request a configuration and we will propose a 4-axis or 5-axis machine for it.