Stone Polishing Machines: Ultimate FAQ Guide

After the stone blocks material is processed into a slabs, it is necessary to deal with its surface. Stone surface treatment method has a variety of methods, such as grinding, grinding matte, fire, water, pickling, etc., which uses the most methods is grinding and polishing, in this paper we explore in detail stone polishing machine

1.What is a polishing machine called?

A stone polishing machine is most commonly called a polishing machine or a buffer. The terms are often used interchangeably, though some people may make a distinction between the two based on the specific action or the type of polishing pad used. A polishing machine is a polishing tool for polishing the stone surface to make it shine

2.What are the different types of polishing machines?

According to the degree of automation of the machine, it is mainly divided into two series

1.Automatic CNC Line polishing machine

1.1 automatic marble granite slab line polishing machine

This machine is a new type of flat plate polishing equipment in stone processing, especially suitable for the polishing of granite and marble flat plates. It can continuously and automatically complete the whole process of flat plate polishing, with high production efficiency, uniform lightness, good lightness, high flatness, consistent thickness, stable quality, suitable for large-scale assembly line production, this machine has unparalleled advantages over other flat plate polishing machines, and has been promoted and used in many stone enterprises.

1.2 Bridge Type Stone Polisher Grinder

This machine is equipped with multiple grinding heads. Through the PLC program control panel, it can realize automatic replacement of grinding heads for grinding and polishing. The bridge-type structure makes the grinding and polishing process more stable. This machine is suitable for grinding and polishing height of 600-1200 mm stone. the equipment is cheap, and the production efficiency of grinding and polishing strips is high, it is very popular among small and medium-sized stone companies.

2. Manual polishing machine

The manual polishing machine is a simple machine with a low price, simple use, convenient and flexible, and small space occupation. It can grind and polish not only flat boards, but also visible edges. It can be equipped with a rotating workbench to grind and polish arc boards. Therefore, the single-arm manual polishing machine is widely used in the stone industry.

3.How does a polishing machine work?

The working principle of the stone polishing machine is to use the motor to power its grinding and polishing grinding head, driving the abrasives of different mesh sizes on the grinding disc to grind and polish the stone. Specifically, the motor transmits power through the drive device to make the grinding head rotate at high speed, and abrasives of various mesh sizes from coarse to fine are installed on the grinding disc. When the grinding head contacts the surface of the stone, the coarse abrasive will first remove the rough part of the stone surface, and then fine abrasives will be gradually used for fine grinding until the surface is smooth and has a high gloss. This process can not only improve the surface quality of the stone, but also enhance its beauty and durability. During the polishing process, the machine is usually equipped with an automatic feeding and discharging system to ensure work efficiency and stability.

4.What are the common parts of a line stone polishing machine ?

A line stone polishing machine typically consists of several key components, each serving a specific function to ensure efficient and effective polishing of stone materials. Here are the common parts:

Machine Frame: Provides the structural support and stability for the entire machine.

Conveyor Belt: Transports the stone slabs through the machine, ensuring they move steadily and uniformly.

Polishing Heads: Multiple rotating heads equipped with abrasive pads or diamond tools that grind and polish the stone surface.

Electric Motor: Powers the polishing heads and the conveyor belt, driving the mechanical operation of the machine.

Hydraulic System: Controls the pressure applied by the polishing heads to the stone surface, allowing for adjustable polishing force.

Control Panel: Allows the operator to manage and monitor the machine's functions, such as speed, pressure, and operational status.

Water Supply System: Provides a continuous flow of water to cool the polishing heads and stone surface, reducing friction and preventing overheating.

Abrasive disc: Secure the abrasive pads or diamond tools to the polishing heads.

Automatic Loading and Unloading System: Facilitates the automatic feeding of stone slabs into the machine and the removal of polished slabs, enhancing productivity.

Sensors and Safety Devices: Monitor the machine's operation and ensure safe functioning by detecting any anomalies or malfunctions.

These components work together to ensure the efficient and high-quality polishing of stone slabs in a production line setting.

5.What is best for polishing stone?

It is depend on the thick of stone, let’s we show it more details for you

1.stone slabs

1.1 Automatic Line Polishing Machine: This equipment is suitable for large-scale processing plants and can efficiently process large-sized stone rough slabs. The automatic line polishing machine can work continuously, significantly improving production efficiency while ensuring the uniformity of polishing quality.

1.2Manual Polishing Machine: For small stone processing projects, a manual polishing machine is an affordable and flexible option. This device is easy to operate and is suitable for processing smaller stone sizes or detailed polishing work.

2.Tombstone

Bridge Type Stone Polisher Grinder: Tombstone usually requires more stable and powerful polishing equipment. The gantry-type stone polishing grinder has a large work surface and efficient grinding capacity, and can handle Tombstone to ensure excellent polishing results.

No matter which equipment you choose, make sure it matches the specifications and processing requirements of the stone being processed to achieve the best polishing effect and production efficiency.

6.What are the methods of polishing stones?

1. Degree of automation

1.1 Mechanical polishing

Mechanical polishing is a method of polishing the surface of stone using mechanical equipment. This method is suitable for large-scale production and has the characteristics of high efficiency, uniformity and stability.

1.2 Manual polishing

Manual polishing is the polishing of stone by workers holding polishing tools. Although the efficiency is low, it has advantages in processing complex shapes and details.

2. Polishing methods

2.1 Chemical polishing

Chemical polishing makes the surface of stone smooth by reacting chemical agents with the surface of stone. This method can achieve a high brightness effect and is suitable for some specific materials of stone.

2.2 Physical polishing

Physical polishing is to make the surface of stone smooth through mechanical grinding and friction. This method is widely used in the polishing of various stones and has reliable results.

3. Dry and wet polishing

3.1 Dry polishing

Dry polishing is the polishing of stone using dry abrasives without the need for water or other liquid media. It is suitable for processing places that need to maintain a dry environment.

3.2 Water polishing

Water polishing is the process of polishing stone by using water as a coolant and lubricant. Water polishing can reduce frictional heat and avoid cracking or deformation of stone, and is often used in large-scale production.

7.What is the HS code for polishing machine?

The HS code for a polishing machine can vary depending on the specific type of polishing machine and its application. Generally, polishing machines fall under Chapter 84 of the HS Code, which covers machinery and mechanical appliances.

To determine the exact HS code, it is important to refer to the detailed descriptions provided in the official Harmonized Tariff Schedule of the country where the machine will be imported or exported. Consulting with a customs expert or using an online HS code lookup tool can also provide more precise information based on the specific machine.

8.What do you understand by polishing?

Polishing is a process that reduces the surface roughness of an object by mechanical, chemical or physical methods, aiming to improve the surface quality of the product and make it look more beautiful and durable. The surface of the workpiece after polishing is smooth, flat and has a good reflective effect.

9.How do I choose a polish machine?

There are many brands and products of automatic polishing machines on the market now. How can we choose a truly suitable automatic polishing machine?

Production scale

Choose according to the size of the output and order quantity. If the output is large, the funds are sufficient, and the profit is high, you can consider purchasing an automatic line polishing machine. On the contrary, if the output is small, you can choose a simple automatic polishing machine.

Processing requirements

If it is a regular stone slab, you can use an automatic line polishing machine or a manual polishing machine. If it is a thick stone slab such as a tombstone or a curbstone, you can choose a gantry or bridge type stone polisher.

Site

If the factory site is not restricted, you can use a multi-heads automatic line polishing machine. If the site is limited, you can choose a 6/8 heads automatic line polishing machine or a gantry or bridge type stone polisher.

Budget

Choose the right equipment according to the budget. If the budget is sufficient, you can consider purchasing a line polishing machine to improve production efficiency. When the budget is limited, you can choose a cost-effective single head stone polishing machine or a gantry or bridge type stone polisher or a manual polishing machine to meet basic needs.

10.What is the cost of 12 head line polish machine?

The cost of a 12 heads line polishing machine can vary depending on several factors, including:

Type of machine: There are two main categories - industrial and handheld. Industrial machines are large and expensive, while handheld machines are more affordable.

Brand and features: Different brands may offer varying prices, and machines with additional features (like variable speed control or water cooling) will typically cost more.

Number of heads: While you specifically asked about 12 heads, machines can come with more or fewer heads, which can also affect the price. Generally, more heads mean a higher price.

Here's a breakdown of the possible costs based on the machine type:

Industrial 12 heads line polishing machine: Prices typically range from $50,000 to $68,000

11.Does machine polishing remove scratches?

Yes, machine polishing can effectively remove scratches from surfaces. The process involves using abrasive materials and pads to grind down the surface, smoothing out imperfections, including scratches. Proper use of the polishing machine, along with the right abrasives and compounds, can significantly improve the appearance of the surface by removing scratches and other imperfections.

12.What is the difference between buffing machine and polishing machine?

Name	Buffing machine	polishing machine
Purpose	Restore shine, remove light imperfections	Create a smooth, polished surface
Action	Friction and heat with soft pads	Abrasive compound and firmer pads
Results	High gloss finish, protects the surface	Smoother surface may address light scratches