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Calibration Grade Granite Surface Plate

Name: Calibration Grade Granite Surface Plate
Brand: GRAPH DATUM
Price: 18960.0 INR
Availability: InStock

Price 18960.0 INR/ Piece

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MOQ : 1 Piece

Calibration Grade Granite Surface Plate Specification

Equipment Type
Calibration Grade Granite Surface Plate

Accuracy
As per IS:7327-2003 and DIN 876 Grade 0/1/2 (up to 3 m per meter)

Temperature
20C (standard operating temperature)

Automation Grade
Manual

Specimen Size
Custom/Standard sizes (e.g. 630x400mm, 1000x630mm, 1600x1000mm, 2000x1000mm, 3000x2000mm)

Measuring Range
Limited by plate surface area

Humidity
<60% recommended for accuracy

Application
Layout marking, inspection, precision measurement, calibration

Features
High density, wear resistance, non-corrosive, non-magnetic, maintenance free

Hardness
7 on Mohs scale

Mounting Type
Supported by rigid stand or heavy-duty supporting frame

Max Height
Typically 100-250 mm plate thickness

Resolution
Up to 1 micron flatness depending on grade

Usage
Laboratory, tool room, workshops, QC & inspection

Capacity
Supports heavy loads (depends on plate size)

Machine Weight
Approx. 200 kg to 3000 kg (varies with size)

Control Mode
Manual leveling (spirit level)

Color
Jet black

Density
Approx. 3.0 g/cm3

Thermal Stability
Excellent, minimal expansion/contraction

Grade
Premium Calibration Grade (Grade 0/1/2 available)

Edge Chamfering
All edges safety chamfered

Material
High quality black granite

Flatness Tolerance
Up to 2 m per meter (Grade 0)

Surface Treatment
None (natural granite surface)

Surface Finish
Smooth, hand-lapped finish (Ra < 2 m)

Wear Resistance
Superior to cast iron surface plates

Non-Magnetic
Yes

Accessories
Leveling stands, adjustable supports, lifting handles (optional)

Calibration Grade Granite Surface Plate Trade Information

Minimum Order Quantity
1 Piece

Delivery Time
7 Days

About Calibration Grade Granite Surface Plate

Constructed from high-quality granite, often black granite granite, chosen for its hardness, density, and stability.Provides an extremely flat and stable reference surface essential for precision measurements and inspections.Technical Details

FAQs of Surface Plate Granite:

Q: What material is the Surface Plate Granite made of?

A: The Surface Plate Granite is made of high-quality granite.

Q: What is the weight of the Surface Plate Granite?

A: The Surface Plate Granite weighs 120 kilograms (kg).

Q: What is the application of the Surface Plate Granite?

A: The Surface Plate Granite is designed for laboratory use.

Q: What type of hardness does the Surface Plate Granite have?

A: The Surface Plate Granite is categorized as hard.

Q: What is the color of the Surface Plate Granite?

A: The Surface Plate Granite comes in a blue color.

Q: Is the Surface Plate Granite suitable for industrial usage?

A: Yes, the Surface Plate Granite is designed for industrial usage.

Q: What is the machine weight for this product?

A: The machine weight for the Surface Plate Granite is 250 kilograms (kg).

Exceptional Flatness and Stability

The Granite Surface Plate provides unparalleled flatness tolerance, conforming to Grade 0, Grade 1, Grade 2, or Grade 3 as per IS 7327:2003 and DIN 876 standards. Its high density and low thermal expansion maintain consistent accuracy, even under varying ambient temperatures and humidity, making it ideal for high-precision metrology and quality control environments.

Versatile Applications and Customization

Available in measuring sizes from 200 mm x 300 mm up to 2000 mm x 3000 mm, with custom options, this surface plate is perfect for precision inspection, layout, and tool making. Its high load-bearing capacity and robust rigidity support a wide range of industrial needs, with optional accessories like steel stands, leveling bolts, and protective covers for tailored setups.

Built for Durability and Ease of Use

Manufactured from non-corrosive black granite with chamfered edges and Mohs hardness of 6-7, the plate resists wear and environmental damage. It's easy to mount on stands, benches, or pedestals, and versatile for manual measurements requiring high-resolution instruments. Packed securely in wooden crates, it ensures longevity and safe transport.

FAQ's of Granite Surface Plate:

Q: How is the flatness of the Granite Surface Plate maintained over time?

A: The plate is made from high-density black granite, which resists wear and minimizes thermal expansion (6 x 106/C). Proper chamfered edges and rigid structure ensure the surface remains exceptionally flat, while periodic calibration assures conformity to Grade 0 or relevant standards.

Q: What is the standard process for using a granite surface plate for inspection?

A: Place the plate on a stable surface or use optional steel stands/leveling bolts. Clean the surface and use precision measuring instruments such as dial indicators or height gauges. Regularly check for contaminants or damage to maintain measurement accuracy.

Q: When should I choose a granite surface plate over a cast iron alternative?

A: Granite is non-magnetic, highly wear-resistant, non-corrosive, and provides extra-fine smooth surfaces. It's ideal for environments where magnetic interference or rust could affect accuracy, and where high flatness stability is required for long-term precision measurements.

Q: Where can the granite surface plate be installed for optimal performance?

A: Install the plate in a temperature- and humidity-controlled environment, such as a standard room or metrology laboratory. Position it on stands, benches, or a pedestal to minimize vibrations and ensure stable, precise measurement results.

Q: What accessories are available with the granite surface plate?

A: Optional accessories include robust steel stands, leveling bolts for precise height adjustment, and protective covers to shield against dust and scratches. These help maintain the plate's accuracy and durability across various workspaces.

Q: How does the surface plate benefit precision inspection and tool making?

A: Its high flatness tolerance, non-magnetic properties, and resistance to environmental factors ensure reliable, repeatable measurement references. This boosts productivity, reduces errors, and improves quality control for inspection, layout, and tool making applications.

Unmatched Dimensional Stability

With negligible expansion or contraction due to temperature changes, this granite surface plate offers outstanding thermal stability. This feature allows precise and repeatable measurements, maintaining accuracy even under strict laboratory or shop floor conditions. The density and hardness (Mohs 7) of the black granite combine to resist wear and ensure durable performance over years of intensive use.

Designed for Safety and User Convenience

Every plate edge is chamfered to enhance operator safety and ease of handling. Supplied with optional leveling stands, adjustable supports, and lifting handles, these surface plates can be seamlessly integrated into various inspection or measurement setups while ensuring easy installation and relocation as per your workflow requirements.

Applications Across Industries

These calibration-grade granite surface plates are indispensable in industries demanding high-precision measurement and inspection. Their manual leveling, robust capacity, and compatibility with different mounting options make them suitable for laboratories, tool rooms, workshops, as well as QC and inspection departments in manufacturing and engineering sectors.

FAQ's of Calibration Grade Granite Surface Plate:

Q: How is the flatness tolerance of the calibration grade granite surface plate determined?

A: The flatness tolerance is specified according to IS:7327-2003 and DIN 876 standards for Grades 0, 1, and 2. For Grade 0, the plate achieves up to 2 m flatness per meter, ensuring high precision for calibration and inspection purposes.

Q: What benefits does granite offer compared to cast iron for surface plates?

A: Granite plates provide superior wear resistance, non-magnetic properties, and are maintenance-free. They are also non-corrosive, ensuring long-term dimensional stability and accuracy without the risk of rust, making them preferable for high-precision measurements.

Q: Where should the granite surface plate be installed for optimal results?

A: The surface plate should be situated in a stable environment, typically with humidity below 60% and a standard room temperature of 20C, supported by a rigid stand or heavy-duty frame to maintain accuracy and minimize vibration or deformation.

Q: When is recalibration or reconditioning of the granite surface plate required?

A: Recalibration frequency depends on the frequency of use and the criticality of measurements. Typically, annual recalibration is recommended for high-precision applications, or more often if heavy objects or repeated abuse occur.

Q: What is the process involved in leveling and installing the surface plate?

A: Leveling is performed manually using a high-accuracy spirit level and the adjustable supports or stands provided. Proper installation ensures flatness and accuracy by distributing the plate's weight evenly and minimizing environmental distortion influences.

Q: How can users utilize the granite surface plate for measurement tasks?

A: Users can perform layout marking, dimensional inspection, calibration, or precision measurement by placing workpieces directly on the plate's surface. The high flatness and smoothness allow for reliable and repeatable referencing across a wide range of applications.

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