Granite Surface Plate

Precision Granite Plate base

Product ID：Granite Surface Plate
Skype：008618928353328
Phone: 0086-189 2835 3328
Tel: 0086-755 2330 1799
Email: martin@furuihua.net
Time: 2023-04-10
INQUIRY

Precision Granite Plate Base

★Brand: FRH

★Type: Presicision granite surface plate
★Function: Measuring tool, inspection tool, calibration platform

★Material: Nature granite

★Features: High precision, acid and alkali resistant
★Precison: 1 um or higher
★Shore Hardness: >Hs7.0
★Compresive Strength: 254N/m²
★Coefficient of water absorption: 0.02%
★Proportion: 3000kg/m³
★Coefficient of linear expansion: 4.61x10^-6/°C

★Packing: Custom export fumigation-free wooden box

The granite surface plate is produced by Furui Lianhua has a high precison that can pass the third party inspection.

1. Our company can process up to 4000mm width and 8000mm length.

2. We accept various related processing on marble slabs, such as drilling holes, opening T-slots, dovetail slots, etc. to customize non-standard parts.

Main Features

1. The granite is after a long-term natural aging, the organizational structure is uniform, the expansion cofficient is small, the internal stresscompletely disappeared.

2. It is against acid and alkali corrosion, rust resistant; do not need oiling, easy to maintain, long service life

3. Not limited by the constant temperature conditions, and can maintain the high precision at room temperature

No magnetization, and can move smoothly while measuring, no tight feeling, free of the affect of moisture, good flatness

Quality Control

We use various techniques during this process:

Optical measurements with autocollimators

Laser interferometers and laser trackers

Electronic inclination levels (precision spirit levels)

Specification

Specification	Weight	000 Level	00 Level	0 Level	1 Level
LWT (mm)	KG	μm	μm	μm	μm
300x300x50	14	1.50	3.00	5.70	11.40
400x600x100	72	1.80	3.44	7.77	15.54
500x800x100	120	2.00	3.89	7.78	15.56
600x900x100	162	2.10	4.20	8.40	16.80
1000x750x150	338	2.30	4.60	9.20	18.40
1000x1000x150	450	2.45	4.90	9.80	19.60
1200x800x150	432	2.48	4.96	9.92	19.84
1200x900x150	786	2.53	5.06	10.12	20.24
1200x1000x150	540	2.56	5.12	10.24	20.48
1500x1000x150	675	2.85	5.70	11.40	22.80
1500x1000x200	900	2.85	5.70	11.40	22.80
1600x1000x200	960	3.00	6.00	12.00	24.00
2000x1000x200	1200	3.25	6.50	13.00	26.00
2000x1000x250	1500	3.25	6.50	13.00	26.00
2000x1500x250	2250	3.5	7.00	14.00	28.00
3000x1500x300	4050	/	7.00	14.00	28.00
3000x2000x300	5400	/	9.30	18.60	37.20
4000x1000x300	3600	/	10.30	20.60	41.20

Factory

Production Equipment
No.	Name	Specs.	Qty. (set)
1	Gantry crane	30 ton	1
2	Gantry crane	10 ton	2
3	Gantry crane	5 ton	2
4	Automatic cutting machine	1mm	3
5	Polishing machine	φ300-φ6000 mm	5
6	Improved leveling machine	1mm	5
7	Grinding machine	0.2mm	5
8	Drilling machine	0.05mm	5

Why us

FRH uses the top-quality black granite in the world to make the precision granite surtace plate with stand.
Our superior black granite has the extremely low coefficient of water absorption, so it can minimize the possibilty of your precision gages rusting while seting on the plates. This black granite creates little glare resulting in less eye strain for individual using the plates.
We have chosen our superior black granite with the specific intent of keeping thermal expansion to a minimum.

Custom requirements
The custom option is available.
UFRH can make the granite plate according to your specific requirements, we also can help you imporve the drawing for your project, including custom sizes, thicknesses. If you need to add holes, counterbores, threaded or solid stainless steel inserts, dovetail slots and t-slots to vour surface plate, we can do that as well.

All our granite products are processed and tested under the strict standard before delivery, the tolerance of flatness is 1.6 um.