When machining with a vertical or horizontal lathe, there is a large amount of water, machining fluid, and machining oil. The ball grid digital display is currently not affected by environmental pollution such as water, oil, and chips, and can still ensure long-term stability and reliability during processing. This saves more maintenance costs for your digital display. It is recommended that you use a ball grid ruler as the best digital display device

Characteristics of ball grid ruler:
The ball grid ruler is highly reliable, waterproof, oil resistant, dustproof, iron chip resistant, vibration resistant, and anti-interference.
Ball grid ruler price summary:
The ball grid ruler has strong adaptability to the environment, effectively ensuring the accuracy of machining dimensions. Easy to install, no processing requirements for the installation surface, and no need for daily maintenance.

Characteristics of ball grid ruler

With unique design and exquisite craftsmanship, the ball grid system has outstanding characteristics, which are more reliable and durable than general digital display systems, and more suitable for working in harsh environments in the workshop. The following are some of the characteristics for reference:

Ip67 protection level
SPHEROTECH, with a fully sealed design, meets the Ip67 protection standard and is not affected by common workshop pollutants such as oil, water, and iron filings, which can affect measurement accuracy. There shall be no malfunction, misreading or omission of data due to the presence or invasion of pollutants.

Ultra long measurement range
The measurement stroke of a single ball grid ruler ranges from 50 millimeters to 12 meters, and can be infinitely extended with high accuracy, providing a perfect solution for the industry's long stroke measurement needs.

Coefficient of thermal expansion
The thermal expansion coefficient of the ball grid ruler is 12X10^-6/K. The coefficient is very close to that of the vast majority of machine tools and workpieces. Therefore, in actual processing environments, it greatly reduces the thermal expansion errors caused by temperature differences or deviations from the precision environment indicated by the factory in the digital display system.

Reliable accuracy
The high reliability measurement accuracy of the ball grid system can be traced back to national level measurement standards. All key production and measurement equipment of the ball grid system are regularly calibrated with dual frequency laser interferometers traceable to the National Physical Laboratory (NPL) for accuracy standards, or directly used for production debugging to ensure that all products meet accuracy standards.

Easy to install
When installing the ball grid ruler, a pair of universal fixtures are used, only two fixing points are needed, and there is no need to mill and level the travel plane. No need to add a tablet to obtain horizontal and vertical accuracy. On most machine tools or workbenches where other digital display systems cannot be installed, the ball grid ruler can also be easily installed.

Special warranty period
The digital ruler with a special warranty period has a ten-year warranty, and the digital meter and reading head also have a five-year warranty. In addition, there is a team of experienced technicians on standby to provide customers with professional, fast, and effective services.

Excellent compatibility
100% compatible with other traditional (sine wave signal) ball grid systems, whether it is a digital display meter, ball grid ruler, or reading head, they can be directly replaced and used, which is convenient and fast

More than one foot reading head
The ball grid ruler adopts a ruler head separation design, and multiple reading heads can be installed on the same ruler. For example, large gantry milling machines, vertical lathes, or specially designed machine tools can easily read two or more data at the same coordinate.

Operating principle of ball grid ruler

SPHEROTECH mainly consists of two parts, the ruler body and the reading head.

The ruler body is made of stainless steel, and the conduit is filled with specially treated steel balls. Each of these steel balls has undergone multiple layers of processing and treatment, and is loaded into the conduit in a tightly controlled environment before being sealed.

The reading head is made up of 6 sets of coils wrapped around a fiber spool. Each coil has excitation and reception functions, and is sealed inside the reading head, completely isolating the damage of coolant, oil, dust, and iron filings. When current passes through the coil, electromagnetic activity is generated, causing different feedback from each steel ball due to different cross-sections. At this time, the cutting coil inside the reading head detects these different feedbacks and cuts the corresponding output signal when the reading head moves along the ruler.

The ball grid ruler digital display system aims to provide reliable, durable, high-quality and affordable products. Even in harsh factory environments, it can still provide accurate and reliable readings to meet the needs of various machine tool production and processing modes.

Ball grid ruler specification table:

Long journey