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High Precision Black Granite Surface Plate

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High Precision Black Granite Surface Plates are best known due to their rust-less properties. They are made in China and provide the strongest, most durable and stable surfaces. They are wildly used for precision gauging, inspection, layout and marking purposes and preferred by Research Laboratories, Engineering Industries, Factory Workshops, Precision Tool Rooms, etc.

OEM or ODM Service: we offer a wide range of services from standard surface plates to custom order as per request.

Calibration Certificate: EX-works inspection reports with measurement values offered by our Quality Inspection Department are included with every surface plate, “Calibration Certificate” is available upon request for an additional charge.

Delivery Costs: calculated during the checkout process.

Key Features:

• Almost no aging

• High wear resistance, high accuracy and it can maintain for longer life

• Moisture and corrosion free, no rusting, no oiling, will not stain or discolor

• Low maintenance costs

• Good vibration isolation and attenuation performance

These features make HENGFENG one of the best Granite Surface Plates manufacturers in the industry.

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Specification:

Material: black granite

Specification: 200X200mm up to 3000X5000mm or customized

Surface: flat, tapped holes, T-slots, metallic T-slots, metallic threaded inserts, etc.

Hardness of Working Surface: HS70

Surface Treatment: ground finish

Stands with Leveling Screws: available on request at extra cost

Precision Grade: 0, 1

Ledge Types: 0, 2 or 4

Packaging: plywood box

Warranty: 1 year

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Standard Sizes of Granite Surface Plate

No.	Width X Length（mm)	Precision Grade
		GR “0”	GR “1”
		Flatness (μm)
1	200X200	3.5
2	300X200	4
3	300X300	4
4	300X400	4
5	400X400	4.5
6	400X500	4.5
7	400X600	5
8	500X500	5
9	500X600	5
10	500X800	5.5
11	600X800	5.5
12	600X900	6
13	1000X750	6
14	1000X1000	7
15	1000X1200	7
16	1000X1500	8
17	1000X2000	9
18	1500X2000	10
19	1500X2500	11
20	1500X3000	13
21	2000X2000	11
22	2000X3000	13	27
23	2000X4000	16	32
24	2000X5000	19	37
25	2000X6000	22	43
26	2000X7000	25	49
27	2000X8000	27.5	54.5
28	2500X3000	14.5	28.5
29	2500X4000	16.5	33
30	2500X5000	19.5	39
31	2500X6000	22	44
32	3000X3000	15.5	30.5
33	3000X4000	17.5	35
34	3000X5000	20	40

*Other sizes are also available upon request. Lead time varies depending upon size and finish requirement.