Special offer a new generation of portable portable roughness instrument

Special offer a new generation of portable portable roughness instrument

Special offer new generation portable rugged portable meter Model: JJ-220
Overview:

Portable roughness tester JJ-220 is a new generation of portable portable surface roughness tester introduced by our company . It has the characteristics of high measurement accuracy, wide measurement range, easy operation, portability, stable operation, etc. It can be widely used in the detection of various metal and non-metal processing surfaces. The instrument is a pocket-sized instrument with an integrated sensor host. Hand-held features are more suitable for use at the production site .

Advantages : portable roughness instrument JJ-220

With optimized circuit design and sensor structure design, the electric box, driver and display part are integrated to achieve a high degree of integration; Ra, Rz , Rq, Rt measurement parameters are arbitrarily selected ; not only can the outer circle, plane, cone be measured Surface, can also measure the groove width greater than 80 × 30mm .

Features: Portable Roughness Tester JJ-220

Portable roughness tester JJ-220 technical parameters

â—† Measurement parameters (?m): Ra, Rz , Rq, Rt

â—† Stroke length (mm): 6

â—† sampling length (mm): 0.25, 0.80, 2.50

â—† Evaluation length (mm): 1.25, 4.0

â—† Measurement range (?m):

Ra: 0.05 ~ 10.0

Rz: 0.1 ~ 50

◆ Indicative error: ±15%

â—† Indicative variability: <12%

â—† Probe stylus arc radius and angle:

Needle tip arc radius: 10 ?m ± 1 ?m

Angle:

â—† Sensor stylus static force and its rate of change:

Stylus static force: ≤ 0.016N

Force change rate: ≤ 800N/m

◆ sensor guide pressure: ≤ 0.5N

â—† Battery: 3. 7 V lithium-ion battery

◆ Dimensions: 1 06 mm×70 mm×24 mm

â—† Weight: 20 0g

â—† Working environment conditions :

Temperature: -2 0 °C to 40 °C

Relative humidity: < 90%

No vibration, non-corrosive media around

Roughness meter universal number definition:

1. Surface roughness: It refers to the micro-geometric shape features composed of smaller pitches and peaks and valleys on the processing surface.

2. Sample length λc : used to determine the length of a reference line with surface roughness characteristics.

3. Assess length: A length necessary to assess an outline, which may include one or several sample lengths.

4. Contour arithmetic mean deviation Ra : arithmetic mean value of the contour offset within the sampling length

5. Root mean square deviation Rq : The rms value of the ordinate over a sampling length

6. Maximum profile height Rz ( ISO ): the height of the sum of the maximum profile peak height Rp and the maximum profile valley depth Rv over a sampling length ;

7. Contour Peak to valley total height Rt : The sum of the maximum contour peak height and the maximum contour valley depth within the evaluation length .

Surface roughness tester JJ-220 application area:

Metal and Non-metal Processing Manufacturing

1. Surface engineering treatment

2. Mold casting, precision manufacturing

3. Automobile manufacturing and parts processing

4. machinery parts and mechanical parts and gearing member

5. Metal processing equipment and machine tool accessories, functional parts

6. Metallurgical smelting, rolling and forging equipment

7. Pneumatic, hydraulic components and pressure vessels

8. General machinery and metal forming equipment

The parameters given by the surface roughness tester JJ-220 conform to GB/T 3505-2000 "Geometrical Technical Specifications Surface Construction Profile Method, Surface Structure Predicates , Definitions, and Parameters", in accordance with GB/T6062-2002 "Product Geometry Techniques" Specification ( GPS ) surface structure , profile method, contact (stylus) instrument nominal characteristics.