China Heavy Duty Cast Iron Bed Plates with Hand-Scraped Surface - Grade 2 Flatness up to 60µm, Sizes 400x400mm to 8000x3000mm for sale

Heavy Duty Cast Iron Bed Plates with Hand-Scraped Surface - Grade 2 Flatness up to 60µm, Sizes 400x400mm to 8000x3000mm

Price Negotiable

Price: Negotiable

MOQ: 1

Delivery Time: 20days

Brand: OEM

Product Description

Heavy Duty Cast Iron Bed Plates with Hand-Scraped Surface

Premium Quality Construction

Manufactured according to GB4986-85 standard, these cast iron surface plates feature hand-scraped finishing for superior precision and durability in industrial applications.

Technical Specifications

Density: 2970-3070 kg/m³
Compression Strength: 245-254 kg/mm²
Flexible Grinding Capacity: 1.27-1.47 N/mm²
Coefficient of Linear Expansion: 4.6×10⁻⁶/°C
Water Absorption: <0.13%
Shore Hardness: HS >70
Available Precision Grades: 000, 00, 0, 1

Size and Flatness Tolerance Specifications

Specification (mm)	Grade 2 Flatness (µm)	Grade 3 Flatness (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

Industrial Applications

Ideal for precision drawing, layout work, and inspection tasks in manufacturing facilities, machine shops, and quality control departments requiring high-accuracy surface references.