China Hollow Type Cast Iron Bed Plates HB170-240 Surface Hardness, Φ300-5000mm Custom Sizes, Precision Grade 2-3 for sale

Hollow Type Cast Iron Bed Plates HB170-240 Surface Hardness, Φ300-5000mm Custom Sizes, Precision Grade 2-3

Price Negotiable

Price: Negotiable

MOQ: 1

Delivery Time: 20days

Brand: OEM

Product Description

Product Overview

Hollow type cast iron bed plates featuring hand-scraped surface finishing with HB170-240 surface hardness. Manufactured to GB/T22095-2008 standards with customizable specifications from Φ300mm to Φ5000mm.

Technical Specifications

Material: HT200-300 cast iron
Surface Hardness: HB160-240
Surface Treatment: Hand-scraped or finish-milling
Foundry Process: Sand casting or centrifugal casting
Molding Type: Resin sand molding
Precision Grade: 2-3
Working Temperature: (20±5)℃
Surface Options: Flat, V, T, straight-shaped slots, tapped holes, long holes, grid lines
Coating: Primer and face painting with pickling oil and plastic-lined or anticorrosion paint

Flatness Tolerance Specifications

Specification (LxW) mm	Grade 0 (μm)	Grade 1 (μm)	Grade 2 (μm)	Grade 3 (μm)
200X200	3.5	7	14	27
300X200	4	8	15	30
300X300	4	8	15	30
300X400	4	8	16	32
400X400	4.5	8.5	17	34
400X500	4.5	9	18	35
400X600	5	10	19	37
500X500	5	10	19	37
500X600	5	10	19	39
500X800	5.5	11	21	43
600X800	5.5	11	22	44
600X900	6	11.5	23	46
1000X750	6	12.5	25	50
1000X1000	7	13.5	27	54
1000X1200	7	14	29	58
1000X1500	8	16	32	63
1000X2000	9	18.5	37	74
1500X2000	10	20	40	80
1500X2500	11	22.5	45	90
1500X3000	13	25	50	100
2000X2000	11	22	44	88
2000X3000	13	27	53	106
2000X4000	16	32	64	127
2000X5000	19	37	75	150
2000X6000	-	43	86	172
2000X7000	-	49	97	194
2000X8000	-	54.5	109	218
2500X3000	-	28.5	57	114
2500X4000	-	33	67	133
2500X5000	-	39	77	154
2500X6000	-	44	88	176
2500X7000	-	50	99	198
2500X8000	-	55	110	221
3000X3000	-	30.5	61	122
3000X4000	-	35	70	140
3000X5000	-	40	80	160
3000X6000	-	45	90.5	181
3000X7000	-	51	101	203
3000X8000	-	56	112.5	225
4000X4000	-	39	78	156
4000X5000	-	43	87	174
4000X6000	-	48	96.5	193
4000X7000	-	53	107	213.5
4000X8000	-	59	117	235

Packaging & Quality Assurance

Each cast iron bed plate is securely packaged in wooden boxes to ensure safe transportation and storage. Manufactured under strict quality control standards with precision grades 2-3 for industrial applications requiring high accuracy and durability.