Cast Iron Lapping Inspection Surface Plates HB170-240 Hardness with 400×400 to 8000×3000 mm Sizes and Grade 0-3 Precision
Price:
Negotiable
MOQ:
1
Delivery Time:
20days
Brand:
OEM
Product Description
Product Overview
High-precision cast iron lapping inspection surface plates with HB170-240 hardness, designed for superior abrasion resistance and long-term dimensional stability. These plates undergo extensive artificial annealing at 600-700°C and 2-3 years of natural aging to ensure consistent performance.
Technical Specifications
Material & Construction
- High-strength cast iron HT200-300 with surface hardness HB170-240
- 600-700°C artificial annealing process
- 2-3 years natural aging treatment
- Scraping technology manufacturing
- Coloring method inspection for precision verification
Quality Standards
- Working surface free from blowholes, sand holes, cracks, and inclusions
- Clean, uniform working surface with painted sides
- Permitted repairs with similar composition material for Grades 0-3
Precision Grades
Surface plates are classified as Grade 0, Grade 1, Grade 2, and Grade 3 according to national standards measurement examination regulations.
Flatness Tolerance Specifications
| Specification (mm) | Grade 2 (μm) | Grade 3 (μm) | Finish Plane (μm) |
|---|---|---|---|
| 400×400 | 24 | - | - |
| 600×400 | 28 | - | - |
| 800×500 | 32 | 80 | - |
| 900×600 | 32 | 80 | - |
| 1000×750 | 36 | 90 | - |
| 1000×1000 | 39 | 96 | - |
| 1500×1000 | 48 | 120 | - |
| 2000×1000 | 52 | 129 | - |
| 2000×1500 | 56 | 140 | - |
| 2000×2000 | 60 | 152 | 230 |
| 2500×1500 | 68 | 168 | 248 |
| 3000×1000 | - | 174 | 248 |
| 3000×2000 | - | 184 | 275 |
| 3000×3000 | - | 210 | 300 |
| 4000×1000 | - | 210 | 300 |
| 4000×2000 | - | 219 | 310 |
| 4000×3000 | - | 240 | 360 |
| 5000×2000 | - | 255 | 375 |
| 5000×3000 | - | 287 | 420 |
| 6000×2000 | - | 293 | 430 |
| 6000×3000 | - | 308 | 460 |
| 8000×2000 | - | 370 | 520 |
| 8000×3000 | - | 382 | 570 |
Usage Guidelines
- Use the entire plate surface uniformly to prevent local grinding
- Maintain cleanliness and protect from iron scrap and sand particles
- Place workpieces gently to avoid surface impact damage
- No hammer work permitted on the surface plate
- Clean after use; apply anti-rust oil for long-term storage
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Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
Cangzhou Famous International Trading Co., Ltd
Location
No.703 Room, Yihe building Yunhe zone, Cangzhou City,China
Contact Person
Ada Yang