Home / Products & Solutions / Ultra-High Precision Measuring Instruments / Granite Measuring Instruments

Granite Measuring Instruments

Company advantages

Our certificate

It has more than 40 trademark patent certificates and more than 20 QC certificates, such as ISO 9001, CE, SGS.

Advanced equipment

The factory has 6 ultra-high-precision machines for drilling and grooving products, and has 4 high-precision surface grinders and other high-end ultra-precision equipment.

Professional team

We have the technology and industry expertise to develop solutions that connect people and businesses across a variety of mobile devices.

Rich experience

Founded in 1998, it is mainly engaged in the processing and casting of precision mechanical metal parts and has 20 years of experience in the manufacturing industry.

What is Granite Measuring Instruments

Granite measuring instruments provide a stable surface for measuring, measuring and inspecting tools or parts. A granite measuring instrument is a precision machining tool used in many workshops to measure, measure and inspect parts and tools. It is typically made from a single piece of high-quality black granite that is flattened and polished to provide a stable, accurate surface for measurements.

Granite Triangular Square
This component is clearly engineered for high-precision applications where angular accuracy and stability are critical — such as in CNC machine setup, optical alignment, or coordinate measuring...
read more
Precision Granite Component Plate
Ultra-Stable Structural & Metrology Reference Solution The UNPARALLELED® Precision Granite Component Plate is a high-stability structural and functional granite component designed for...
read more
High-Precision Granite Straight Ruler
The Ultimate Reference for Linear Accuracy and Machine Alignment In ultra-precision manufacturing, the Granite Straight Ruler is an indispensable tool for verifying the straightness and...
read more
Precision Granite Frame Component
High-Stability Structural Solution The UNPARALLELED® Precision Granite Frame Component is a high-performance structural part engineered for ultra-precision industrial applications....
read more
Custom Machined Black Granite Plate
This precision-machined granite component is manufactured from UNPARALLELED® Black Granite, a material renowned for its exceptional stability, high density (~3100 kg/m³), and outstanding...
read more
Precision Granite Structural Component
Product Overview The UNPARALLELED® precision granite structural component is a high-stability foundation engineered for ultra-precision applications such as coordinate measuring machines...
read more
Precision Granite Dovetail Guide Rails
Products Description The Foundation of Nanometer Accuracy in Motion and Metrology Welcome to the pinnacle of ultra-precision. At UNPARALLELED Group, we don't just supply granite components-we...
read more
Precision Granite Angle Plate
Product Overview The UNPARALLELED® Precision Granite Angle Plate is a high-accuracy measuring and inspection tool designed for ultra-precision alignment, squareness checking, and machine...
read more
Granite Straight Edge For Precision Alignment
Premium Black Granite Material – Provides outstanding stability, high hardness, and superior wear resistance.
Micron-Level Precision – Ideal for machine tool alignment, inspection, and...
read more
Granite Machinist Block
High-precision black granite component by UNPARALLELED. Dimensional stability, custom machining, ideal for CMM, metrology, and machine bases.
read more
Metric Gauge Block Set 32 Blocks
MULTIPLE LEVEL OPTIONS---- The product levels are 0, 1, and 2. The product specifications are 32, 38, and 47.
CHAMFERING PROCESS---- Chamfered edges, edges blunted cube, use not to hurt the...
read more
V-blocks For Precision Measurement
Precision granite V-blocks for accurate alignment and inspection. Non-magnetic, wear-resistant, and stable. Custom sizes available for industrial use.
read more

First 12 3 4 Last

Benefits of Granite Measuring Instruments

High inherent stability

Granite is a volcanic deep rock comprising the three main components quartz, feldspar and mica, formed by crystallisation of rock melts in the earth's crust."Aged" over several thousand years, granite is homogeneous and free of internal stresses. Impala, for example, is about 1.4 million years old.Granite has a great hardness: Mohs' hardness 6 on a hardness scale up to 10.

Longevity

Thanks to their resistance to corrosion, wear, and tear, standard granite measuring instruments exhibit remarkable longevity. This durability ensures a prolonged lifespan for the instruments, making them a cost-effective choice for industries that require reliable and long-lasting measurement tools.

Stability

These instruments are less prone to thermal expansion, providing stability in measurement environments with varying temperatures. The stability in measurements is crucial for industries where consistent and accurate results are imperative. It ensures that measurements remain reliable even under changing environmental conditions, contributing to the instruments' reliability in diverse settings.

Accuracy

Standard granite measuring instruments offer a high degree of precision, making them indispensable for quality control processes. The accuracy provided by these instruments is crucial in maintaining and verifying the quality of manufactured components. This accuracy contributes to the overall efficiency of production processes across various industries, where precision is a non-negotiable factor.

Application of Granite Measuring Instruments

Aerospace Industry

Standard granite measuring instruments assume a fundamental part in the aviation area by guaranteeing that parts meet severe determinations for security and execution. These instruments are essential in the assembling and quality control cycles of aviation parts, keeping up with the best expectations in this security basic industry. They add to the accuracy expected for the creation of airplane parts and frameworks, eventually improving the general security and dependability of aviation vehicles.

Automotive Manufacturing

In the auto business, accuracy is fundamental for manufacturing high-performance and safety-critical components. Standard granite measuring instruments are broadly utilized in quality assurance processes to ensure that auto parts meet exact details. This guarantees the unwavering quality and security of vehicles out and about.

Medical Equipment Production

The medical field depends on exact instruments for producing and verifying clinical equipment with high accuracy. Standard granite measuring instruments contribute to the manufacturing of medical equipment, like surgical instruments and diagnostic equipment. Their utilization guarantees that these gadgets satisfy the severe quality guidelines important for medical services applications.

Quality inspection and testing industry

In the quality inspection and testing industry, granite flat measuring tools are also a common tool. For example, in the precision testing of automobile parts, granite flat measuring tools can detect the flatness of wheel bearings, thereby ensuring the working accuracy and quality of the parts.

Types of Granite Measuring Instruments

These are the foundation for precise measurements in quality control processes. They provide a flat, stable base for inspecting parts, tools, and assemblies.

Granite Surface Plates

Used for checking the straightness and rightness of parts. Their high precision ensures accurate alignment and leveling.

Granite Squares and Straight Edges

Essential for inspecting cylindrical parts and used in setups where parallelism and perpendicularity matter.

Granite Parallels and V-Blocks

Characteristics And Accuracy Requirements of Granite Measuring Instruments

Granite measuring instruments are benchmark measuring tools made of stone materials. They are widely used as measuring tools in the production activities of machinery factories. They are very ideal datum surfaces for the inspection of instruments, tools and mechanical parts. Has the following characteristics:

The raw materials of granite measuring instruments have been aged for a long time, have uniform organizational structure, small linear expansion coefficient, internal stress disappears and no deformation.

Granite measuring instruments have good rigidity, strong resistance and small temperature deformation.

Granite measuring instruments are not afraid of acid and alkali corrosion, will not rust, do not need to be oiled, are not prone to dust, are easy to maintain, and have a long service life.

Granite measuring instruments will not show scratches, are not blocked by constant temperature conditions, and can maintain temperature measurement accuracy at room temperature.

The granite measuring instrument is not magnetized, can move smoothly during measurement, has no sluggish feeling, is not affected by moisture, and has a well-established flat surface. Physical properties: Specific gravity 2970-3070kg/m3 Compressive strength: 2500-2600kg/cm3 Elastic coefficient: 1.3-1.5×106kg/cm2 Water absorption.

The Importance of Granite Measuring Instruments in Industries with Repeatability

The flatness of the surface is decisive

Measuring plates made of hard rock as well as hard rock standards-such as test rulers and test angles-are proven in precision machining. These are the oldest hard rock applications in precision machine and plant construction. Measuring plates are required as an aid in quality assurance for measuring production parts. The flatness of the surface is of great importance, serving as a reference surface for the use of various measuring devices and instruments. This is the only way to make measured values repeatable and comparable. The tolerances for the flatness of the surface are classified in DIN 876. There are several quality classes, e.g. the DIN 876/0 marking stands for quality class 0.

Precision work

The high surface quality is achieved by grinding and subsequent manual lapping of the granite measuring plate. Depending on the quality class, several measuring and lapping processes are necessary. Flatness is determined using electronic inclinometers before being documented as a test report or calibration certificate. Important for the use of granite measuring plates: an intrinsically stable installation on the besel's points. In order to guarantee the precision of the granite plates permanently, the hard rock measuring plates must be calibrated at regular inspection intervals.

Increasing demands on measuring plates made of hard rock

Smaller measuring and control plates made of granite (up to approx. L=2,000 mm) are sold by tool dealers via an online catalogue. They mainly originate in Asia. Often only the calibration of the measuring plates takes place in Europe. Custom-made products are becoming increasingly important. These custom-made granite measuring plates are the result of ever increasing demands on product quality and process reliability.

How Granite Measuring Instruments Are Made

Step 1. Quarrying and Cutting Into Slabs
Granite is extracted from large quarries worldwide, typically in Brazil, India, and Italy. After extraction, the blocks of granite are then cut. This process involves using diamond-tipped saw blades to cut the granite into slabs of varying thicknesses, depending on the application.It's a time-consuming procedure that requires expert attention to detail, as the stone must be cut precisely to avoid defects in the final product.

Step 2. Polishing the Slabs
Once the slabs are cut, they're polished using a series of progressively finer grits of abrasive materials until they're smooth and glossy, giving them a mirror-like shine. The polishing process brings out the natural beauty of the granite, and it can take several hours to complete depending on the thickness of the slab.

Step 3. Shipping and Transporting
Once polished, the granite is carefully packaged and shipped worldwide. When bundles of granite slabs arrive at various ports in the United States, they are carefully off-loaded and prepared for transport using freight trains and tractor-trailers to be delivered to granite wholesalers nationwide.After being brought to the wholesalers, the slabs move on to local fabricator companies specializing in cutting and installing personalized countertops for residential and commercial properties.

Step 4. Fabrication

The granite is measured, cut, and shaped to fit the homeowner's kitchen or bathroom dimensions. This step involves using specialized tools and computer-controlled equipment to create precise cuts and shapes. The stone may also be treated with sealants that help protect it from stains and scratches.

Step 5. Installing the Granite Measuring Instruments

Once the countertops are cut, they're transported to the installation site. The installer will then carefully place the countertop in the designated area and secure it. Once the countertops are installed, they may be sealed again to ensure maximum durability and protection.

Step 6. Enjoying Your New Granite Measuring Instruments

Now that your beautiful, new granite Granite Measuring Instruments are installed, it's time to enjoy them! Granite is a durable, low-maintenance material that's easy to clean and resistant to heat, scratches, and stains. Just follow the manufacturer's instructions for care and maintenance to keep your countertops looking new for years to come.

How to Maintain Granite Measuring Instruments

Proper Installation
The first step to properly caring for and maintaining your Granite Measuring Instruments is to have it properly installed. This way, it would last longer.Of course, it's best to purchase the Granite Measuring Instruments from specialized manufacturers. If you're looking for one, visit Eleymet.com or similar sites, where you can get all the parts of your Granite Measuring Instruments manufactured to your specifications.

Regular Service And Calibration
The more you use your Granite Measuring Instruments, the more it wears out. That said, regular servicing and calibration are crucial to ensure that the surface plate maintains its functionality despite continued use. Calibration should be done every six months – one year for frequent usage and every three years depending on infrequent use. To determine the frequency of the calibration, proper and regular servicing must be done.

Use Adequate Cleaners
To clean your Granite Measuring Instruments and ensure it lasts longer, you should pay attention to the type of surface cleaners you use. Preferably, avoid water-based cleaners and invest more in alcohol-based cleaners. Granite often absorbs water which can lead to the rusting of metal tools placed on it. Hence, water-based cleaners are not advisable. Instead, look for professional granite surface cleaners with the necessary chemical compositions to clean the surface while acting as a rust inhibitor and degreaser.

Clean And Cover The Surface
The build-up of grease, dust, debris, and other forms of dirt on the Granite Measuring Instruments is unavoidable. Therefore, constant cleaning is necessary.Clean the surface plate before and after use with a granite surface cleaner and wipe it down with another clean piece of clothing to remove left-over cleaning fluid on the surface.After proper cleaning and when not in use, cover the surface with a soft and hard cover to avoid build-up of dirt, dents made by foreign objects dropping on it, and other issues.

Use For Measuring Only
Always remember that Granite Measuring Instruments are not storage tables to store tools, food, or other substances. They are engineering measuring instruments that must not be used for anything other than measuring. Avoid placing anything other than what needs to be measured on the surface plate. The likes of foods and drinks can release acids that can react violently with the surface causing holes and wearing the surface faster.

Avoid Overloading The Surface
Avoid placing way too many parts to be measured at once on the Granite Measuring Instruments. At the same time, avoid placing tools or those that are bigger than the surface table. These can lead to inaccurate readings, and a better solution is to ensure the even distribution of items on the surface when there is a need to measure different parts. Also, ensure the items fit perfectly with the size of the surface plate. If you are unsure of the size fitting, consult the manufacturer’s guide for information.

Our Factory

UNPARALLELED started in 1998, and UNPARALLELED is mainly engaged in the processing and casting of precision machinery metal parts. Later, in 1999, it began to research and produce high -precision granite components and precision granite measuring tools. In 2003, UNPARALLELED began to develop and produce precision ceramic components, Ceramic measuring tools and mineral casting (also known as artificial granite, resin concrete, resin granite components, etc.). UNPARALLELED is a benchmark in the precision manufacturing industry. It can be said that the "UNPARALLELED" is already synonymous with the most advanced ultra -high precision manufacturing.

Our certificate

productcate-1-1

FAQ

Q: Why use granite table for measurement?

A: Due to its hardness and wear qualities, non denting property, smoother action, greater precision, low maintenance cost, granite is used often for manufacturing of Surface plates, measuring prisms, guideways of precision instruments and other metrology aids.

Q: Why is granite used for CMM?

A: Inherent stability, temperature resistance, vibration damping and accuracy of the guides are the four properties that make granite the ideal material for coordinate measuring machines.It is widely used for architectural facades, construction materials, ornamental stone and monuments. Over 40% of dimension stone quarried is granite. Crushed granite is used as a durable construction material in asphalt and concrete used in highway and infrastructure projects.

Q: Are granite tables good?

A: It has many benefits, including exceptional durability, which makes it an ideal furnishing option for regular use. It handles heat and scratches without any issues, and its low maintenance requirements make it a convenient option for busy households.

Q: Which type of CMM is most suited?

A: The bridge is the most popular style of coordinate measuring machine. The description found on Wikipedia is as follows: The typical 3D "bridge" CMM machine allows probe movement along three axes, X, Y and Z, which are orthogonal to each other in a three-dimensional Cartesian coordinate system.Magnetite (Fe3O2) is often a trace mineral (±2-4%) in granite, and easily recognized by its strongly magnetic property.

Q: What is better than granite?

A: Quartz is actually harder than granite and thus, more durable. In fact, quartz is nearly indestructible, and because it isn't porous like granite, it's easy to keep your countertops relatively bacteria-free. Be careful with cooking pans though: Quartz can be damaged by excessive heat, so use heating pads at all times.

Q: How is granite measured and priced?

A: Granite Countertops Price Per Square Foot.Like many home improvement projects, the square footage of the countertop is one of the largest factors to consider. Most contractors will quote you the granite countertops price per square foot, which typically falls between $40 and $100 per square foot.

Q: How to Simply Calibrate a Granite Surface Plate？

A: Granite surfaces plates are key instruments in inspection labs across the country. The calibrated, extremely flat surface of a surface plate enables inspectors to use them as a baseline for part inspections and instrument calibration. Without the stability afforded by surface plates, many of the tightly toleranced parts in various technological and medical fields would be much more difficult, if not impossible, to manufacture correctly. Of course, to use a granite surface block to calibrate and inspect other materials and tools, the accuracy of the granite itself must be assessed. Users can calibrate a granite surface plate to ensure its accuracy.

Q: Why is granite so expensive?

A: Granite is naturally hard, dense, and durable, which coincidentally are characteristics you want your countertop to have! The fact that granite has to be quarried and its hardness requires special equipment to cut it is one reason granite countertop costs tend to be higher than man-made varieties.

Q: At what frequency does granite vibrate?

A: When the excitation frequency is within the range of 0∼10 kHz, the resonance frequency of granite is 6900 Hz, and that of sandstone is 8700 Hz. However, when the excitation frequency is within the range of 0∼20 kHz, the resonance frequencies of granite and sandstone are 10.6 kHz and 16.2 kHz, respectively.

Q: Can a magnet stick to granite?

A: The rock granite cannot be magnetic but it can contain one or more minerals that are magnetic and if present those minerals would make that particular sample slightly magnetic in the areas surrounding those particular minerals.

Q: What is the rarest type of granite?

A: One of the rarest types of granite the world is Van Gogh Granite known for its aqua blue and mint green color with burnt orange veining. Since the combination of blue and red granite specifically is so rare in nature it is the most expensive.Granite is an igneous rock known for being very hard. Quartzite, on the other hand, is a metamorphic rock composed almost entirely of quartz, the hardest material on earth.

Q: Which is better Corian or granite countertops?

A: While more porous than engineered surfaces like Corian, granite's density makes it incredibly resilient against cracking or chipping. Its classic, timeless beauty, and long-term durability explain why granite reigns supreme for luxury kitchen countertops.

Q: Can granite take heat?

A: Granite is naturally heat resistant, and heat damage would occur only if the granite was heated unevenly. So briefly putting a hot pan down on your granite countertop isn't going to cause long-term damage. That said, we don't recommend putting hot pans on granite countertops — not for the granite's sake but for yours.

Q: What color granite is timeless?

A: Both options are timeless. Warm Beige and Gold Granite. Beige and gold granite countertops bring warmth and richness to a space. These granite colors evoke coziness and comfort.example- If you have a granite top that is 3cm or 1-1/4 thick, 2ft X 10ft. that would be 20 square ft. 20 sq ft X 18 pounds per square ft. = 360 pounds.

Q: How many years can granite last?

A: Around 100 years
A well-maintained granite countertop should survive for around 100 years or more. The key statement here is “well-maintained.” While granite can withstand the typical day-to-day wear and tear, granite countertops do require some maintenance to ensure their sustainability similar to most things of value.

Q: Why is granite so heavy?

A: As a result of all of Mother Nature's work, granite is extremely dense. This density is what makes granite so heavy; granite weighs in at about 166.5 lbs per cubic foot with the darker denser colored granites heavier than lighter granites. Concrete weighs about 150 pounds per cubic foot.3cm (or 1 1/4") is the standard thickness for kitchen countertops, while 2cm (or 3/4") is typically used for vertical applications like backsplashes, bathroom vanities, and custom edge profiles. The main advantage of 3cm is that it's thicker, which makes it stronger and more durable.

Q: How do you evaluate granite?

A: Checking for Porosity in Granite/marble slabs with no tools. A very easy method to check for porosity is to drop 3-4 droplets of lemon juice (citric acid) on the surface of the stone. If the lemon juice is immediately absorbed into the marble, it is porous. High porosity indicates poor quality.Step One: Take measurements of the entire length of each countertop you want covered in granite. Step Two: Make sure you measure in inches, and multiply the length by 25.5 inches since typical cabinets are 24 inches and you'll want a 1.5-inch granite overhang.

Q: What color granite is most expensive?

A: Blue granite
Overall, you will find that the most expensive types of the stone are blue granite. Various types of blue granite, like Azul Aran and Blue Bahia granite, are in the high-end of the price range. The most expensive type of granite is Van Gogh granite. This is because these slabs are highly desirable, yet very rare.

Q: What happens if Granite Measuring Instruments?

A: Granite's Heat Resistance
An extreme heat source over an extended period could damage granite surface. The damage that might occur would involve a slight softening of the granite, which could lead to discoloration or gouges in an extreme scenario.

Q: How can we know if a measuring device is accurate?

A: The only way to determine the accuracy to which any measuring device provides measurements is to calibrate it against a device of known accuracy and known errors for measurements. You technique is partially correct; don't just do the error measurement for the limits of the device as one population or sample bin.

UNPARALLELED LTD is one of the most professional granite measuring instruments manufacturers and suppliers in China, featured by advanced products and good service. Please rest assured to buy custom made granite measuring instruments at competitive price from our factory.

Granite Measuring Tools, granite measuring instrument, surface plate calibration