UNPARALLELED LTD is one of the leading manufacturers and suppliers of granite straight edge in China. With abundant experience, we warmly welcome you to buy advanced granite straight edge made in China here from our factory. We also accept custom orders.
Product Overview
Our Granite Straight Edge is crafted from AAA-grade natural black granite sourced from Jinan, China - a global center of metrology-grade granite. With precision better than 1μm using nano technology, this tool is ideal for high-accuracy calibration, alignment, and surface inspection across industries including aerospace, automotive, CNC machining, mold manufacturing, and precision laboratories.
Key Features
Material: AAA Grade Industrial Natural Granite
Color Options: Pure Black / Black Grey
Precision Levels:
Grade 0: Up to 0.004 mm
Grade 00: Up to 0.002 mm
UNPARALLELED Precision: Up to 0.001 mm
Standard Lengths: 1000 mm to 2000 mm
Cross-Section Sizes: Ranging from 60×160 mm to 80×250 mm
Weight: From 18 kg to 69 kg
Customization: Available upon request
Brand: UNPARALLELED
Applications
Metrology & Laboratory Calibration
CNC Machine Alignment
Mold Tooling Inspection
Surface Flatness Testing
Precision Equipment Setup
Specifications
| Length (mm) | Grade 0 (mm) | Grade 00 (mm) | UP Precision (mm) | Weight (kg) |
|---|---|---|---|---|
| 1000 | 0.004 | 0.002 | 0.001 | 18 |
| 1250 | 0.006 | 0.004 | 0.002 | 25 |
| 1500 | 0.006 | 0.004 | 0.002 | 39 |
| 2000 | 0.006 | 0.004 | 0.002 | 69 |
Applications
CNC Guide Rail Straightness Calibration
Mold and Die Assembly Precision Alignment
Semiconductor Equipment Platform Leveling
Scientific Lab Flatness Inspection
Factory Showcase
Why Choose Our Granite Straight Edge?
✅ Excellent hardness & wear resistance
✅ Rust-free, corrosion-proof
✅ Thermally stable – ideal for precision environments
✅ Long-lasting surface accuracy
✅ Non-magnetic and maintenance-free
Quality Control
International Certification and Service System
Certifications & Compliance
✔ ISO 9001, ISO 45001, ISO 14001, CE
✔ Conforms to: ISO, DIN, GB, JIS, ASME, Federal standards
Packaging & Delivery
- Packaging: Custom export-safe wood crate or foam-packed boxes
- Delivery Terms: EXW, FOB, CIF, DAP, CPT
- Payment: T/T, L/C
- Shipping Origin: Jinan, China
FAQ
Q: Is it safe to use a magic eraser on granite?
Magic Erasers are abrasive, so avoid using them on delicate countertops such as marble and granite. Not only can you damage the sealant but the eraser may make the countertop appear dull.
Q: Why does my granite never feel clean?
A dull and lifeless granite surface, losing its vibrant sheen, is often a telltale sign of trouble. This dullness usually results from using cleaners not specifically designed for granite, like glass or wood cleaners.
Q: What are the signs that granite needs resealing?
If the surface under the puddles darkens right away, the stone may be too porous for a kitchen or bathroom application. Alternatively, if the surface darkens after approximately five minutes, the stone is a good choice for a kitchen or bathroom – if you seal it.
Q: What should you not put on a granite countertop?
Acids. On a similar note, any liquid that contains a lot of acids needs to be far away from your granite. More than just leaving a stain, some of the more concentrated acids such as perfumes, vinegars, sodas and nail polishes can even damage your granite's seal or etch your countertops.
Contact Us Today for Global Orders
We ship worldwide and offer OEM/ODM services for customized sizes or branded packaging. Trusted by clients in Germany, USA, Singapore, India, and beyond.
📩 Get a Quote Now or Email: Info@unparalleled-group.com
🌐 Visit us: www.unparalleled-group.com
Hot Tags: granite straight edge, China granite straight edge manufacturers, suppliers, factory, granite measuring table, granite leveling calipers, granite surface tables, Granite Cube, granite laboratory rulers, iron surface plate
