Hualong HLCNC-3319 CNC Stone Processing Center for Marble and Granite Edge Polishing

When a stone workshop handles kitchen countertops, vanity tops, islands, or custom-shaped slabs, edge finishing can take a considerable amount of time. Different edges may also require different tools and processing methods. Hualong Machinery developed the HLCNC-3319 CNC stone processing center to bring several of these operations together in one machine.

The HLCNC-3319 can grind, polish, drill, mill, cut, and engrave stone slabs. It is mainly used for countertop processing and is suitable for marble, granite, and other stone materials. For fabricators looking for a China Marble and Granite Edge Polishing Machine, this model provides a CNC-based way to handle both regular and more complicated edge work.

Designed for Countertop and Sink Processing

The HLCNC-3319 is built around a three-axis CNC control system. Instead of moving the slab between several machines for different operations, the operator can prepare the machining program and let the machine carry out the required processes in sequence.

This is particularly useful when producing countertops with sink openings. The machine can process the inner edges of sink cutouts as well as different curves and shaped sections. It can also be used for kitchen countertops, bathroom vanity tops, bar counters, islands, and coffee tables.

The machine is not limited to straight edge polishing. With the appropriate milling and polishing tools, it can work on shaped edges that would normally require more manual finishing.

20 Tools for Different Processing Jobs

One of the practical features of the HLCNC-3319 is its 20-position automatic tool storage system. The tools are selected according to the programmed processing sequence, so the operator does not need to stop the machine every time a different operation is required.

Depending on the job, the tools can be used for:

Calibration

Drilling

Milling

Engraving

Honing

Edge polishing

This setup is useful for countertop production because several operations can be completed during the same machining cycle. It also makes the machine easier to adapt to different countertop designs and customer requirements.

Large Working Area for Stone Slabs

The HLCNC-3319 has a 3300 × 1900 mm workbench, giving it enough working space for a wide range of countertop and slab-processing jobs.

The machine is also designed with a vacuum suction cup and aluminum alloy locking bars to help hold the slab in position during processing. Keeping the workpiece stable is especially important when working on sink openings, narrow edges, curves, and other detailed areas.

According to Hualong's published data, the machine dimensions are 553 × 320 × 230 cm, and the gross weight is approximately 5000 kg.

CNC Control and CAD/CAM Connection

The machine uses numerical control planning and can interface with CAD/CAM software. This allows a countertop design to be converted into a machining program before processing begins.

For repeated production, saved programs can also make it easier to reproduce the same design without setting up every operation manually from the beginning.

A USB interface is provided for convenient program input and output. This is a small but useful feature for workshops that regularly exchange or update machining files.

The spindle speed is adjustable from 0 to 8000 rpm, while the machine uses a BT40 tool holder. These specifications give the HLCNC-3319 the flexibility needed for different stone-processing operations.

HLCNC-3319 Technical Specifications

These specifications are based on Hualong Machinery's published HLCNC-3319 product information.

What Can HLCNC-3319 Process?

The machine can be used for a variety of stone fabrication jobs, including:

Kitchen countertops
Processing sink openings, inner edges, and countertop edges for residential kitchens.

Bathroom vanity tops
Drilling, milling, and polishing areas around basins and other openings.

Island and bar countertops
Suitable for larger slabs where consistent edge finishing is required.

Curved and special-shaped edges
CNC-controlled machining makes it possible to process curves and profiles that are difficult to finish with a conventional straight-line edge polishing machine.

Stone engraving and milling
The available tooling also allows the machine to perform additional milling and engraving work instead of being used only for polishing.

Less Manual Handling During Production

A common problem in countertop fabrication is the amount of handling between cutting, drilling, milling, and polishing. Every additional setup takes time and creates another opportunity for positioning errors.

With the HLCNC-3319, several operations can be programmed as part of the same machining process. Once the slab has been positioned and the program is ready, the machine can continue through the selected operations automatically.

This does not eliminate the need for an operator. The operator is still responsible for loading the slab, checking the tooling and program, and monitoring the machining process. However, it reduces the need for constant manual intervention while individual polishing or sink-processing operations are being completed.

Why HLCNC-3319 Fits Modern Stone Workshops

For a workshop mainly producing countertops, investing in several separate machines for drilling, milling, polishing, and engraving can take up considerable floor space. HLCNC-3319 takes a different approach by combining these functions in one CNC processing center.

Its 3500 mm X-axis stroke, 1950 mm Y-axis stroke, 320 mm Z-axis stroke, 7.5 kW motor, 0–8000 rpm spindle, and 20-tool automatic tool storage give it a configuration suited to everyday countertop fabrication.

The main advantage is flexibility. A workshop may use the machine for a straightforward granite edge one day and then switch to a sink cutout, curved edge, or engraved design the next. The processing method changes with the program and tooling rather than requiring a completely different machine.

For stone fabricators comparing a China Marble and Granite Edge Polishing Machine, Hualong HLCNC-3319 offers a combination of CNC control, automatic tool changing, and multiple stone-processing functions in one working platform.