Lavina X Concrete Grinding Setup Used by a U.S. Contractor

In real concrete polishing projects, contractors rarely follow theoretical grinding charts. Instead, they rely on tool combinations that consistently deliver predictable results on different slabs.

A recent order from a contractor in the United States using a Lavina X floor grinder provides a good example of a practical grinding workflow.

The contractor regularly performs concrete surface preparation and polishing on residential and commercial projects. The goal is not only to grind the floor efficiently, but also to create a smooth transition from metal grinding to resin polishing.

Metal grinding stage

The grinding process starts with metal bond diamonds.

For this project the contractor ordered:

• 30 grit metal diamonds (medium bond)

• 70 grit metal diamonds (medium bond)

These two grits are commonly used to remove surface imperfections, open the concrete, and establish the initial scratch pattern.

Using medium bond diamonds allows stable performance on medium hardness concrete, which is one of the most common slab conditions in the United States.

Transition stage

One of the most important steps in floor polishing is the transition between metal grinding and resin polishing.

Many contractors struggle at this stage because metal diamonds often leave scratches that resin pads cannot easily remove.

To solve this problem, a copper-bond hybrid pad (50 grit) was introduced as a transition tool.

Hybrid pads combine the cutting ability of metal diamonds with the smoother scratch pattern of resin tools. This helps reduce deep scratches and prepares the floor for polishing.

Resin polishing stage

After the hybrid transition step, the process continues with resin polishing pads.

In this setup, an 800 grit resin pad is used to begin the polishing stage before moving to higher grits such as:

1500 grit

3000 grit

This sequence creates a much more stable polishing process and reduces the risk of visible scratch patterns.

A practical contractor workflow

The full grinding workflow used in this example follows a simple and effective structure:

Metal grinding

→ Hybrid transition

→ Resin polishing

For contractors using Lavina grinders, this setup offers a balanced combination of cutting speed, scratch control, and polishing efficiency.

Additional tools used by contractors

Besides grinding diamonds and polishing pads, many contractors are also expanding their tool systems with additional accessories.

Some commonly used tools include:

adapter plates

magnetic tool plates

diamond-encrusted polishing pads (17 inch)

These accessories make it easier to adapt tools between machines and increase productivity on large floor areas.

Real contractor setups like this provide valuable insight into how professional concrete polishing projects are actually completed in the field.