Portable Surface Roughness Tester Surfaces Testing Instrument for Metals/Non-Metals Ra/Rz/Rt/Rq

Min.Order: 1

Product origin: Weifang, Shandong, China

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US$ 100 ~ 120

Description

The measurement of surface roughness is not as straight forward as most other engineering measurements such as length or angle or hardness' and in order to get good accuracy, expensive instrument are required. These are often unsuitable for workshop use, where roughness of machined surface can usually be assessed conveniently and with sufficient reliability using visual and tactile comparison with a standard set of surface machined in the same way.

There problem are solved by this range of Surface Roughness Comparison Specimens, they are inexpensive and simple to use, widely used in many different applications.

As standardized in ISO2632/-1975

This set contains standards for the six most important machine methods in the prevalent"AA" values, These surface roughness is usd to compare and determine the degree of the surface finish by comparison method and eye estimation or magnifying glass ,The surface rough contrast blocks is made of 45 super carbon steel except the GCr15 which is using to plat lapping the sample block.

All 30 specimens are calibrated in μ"AA"(arithmetic average) and in the metric equivalents um Ra.

Turning		Vertical milling		Horzontal milling		Plain grinding		External gringing
um	uin	um	uin	um	uin	um	uin	um	uin
12.5	500	12.5	500	12.5	500	1.6	63	1.6	63
6.3	250	6.3	250	6.3	250	0.8	32	0.8	32
3.2	125	3.2	125	3.2	125	0.4	16	0.4	16
1.6	63	1.6	63	1.6	63	0.2	8	0.2	8
0.8	32	0.8	32	0.8	32	0.1	4
0.4	16	0.4	16	0.4	16	0.05	2

1:How can I choose the most suitable machines?
Please tell me your specifications (or send your workpiece drawing to us) ,we can choose the best model for you , or you can choose the exact model . You can also send us the products drawing ,we will choose the most suitable machines for you .

2: What's your main products of your company?
We specialized in CNC Lathe Machine ,CNC Milling Machine ,Vertical Machining Center ,Lathe Machines ,Drilling Machine ,Radial Drilling Machine ,Band Saw Machine ,Sharper machine and so on .

3: How long is the delivery time?
For standard machines,it would be around 30 days;For non-standard machines and customized machine according to client's specifications requirements,it would be a little longer.

4.Where is our factory located? How can I visit there?

Our factory is located in Weifang City, Shandong Province, 261071 China. You are warmly welcomed to visit us.

5. What is your trade terms?
FOB, CFR and CIF all acceptable.

6: What's the Payment Terms?
T/T ,30% initial payment when order ,70% balance payment before shipment ; Irrevocable LC at sight .

7: What's the MOQ?
1 set .(Only some low cost machines will be more than 1 set ).

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