Granite pedestal deflectometer (also known as marble deflectometer) is widely used for measuring shaft and disc products and components, mainly detecting their radial runout, ellipticity, and end face accuracy errors.
2、 Advantages:
1. The use of granite instrument bases has improved the accuracy of the reference plane and reduced the accuracy error of the instrument itself.
2. The activity table holder can be used for measurement at any position on the instrument holder.
3. The instrument base is rust free and easy to use and store.
3、 Usage:
Tighten the eccentric shaft handle, first fix the fixed top seat on the instrument base. Fix the movable top seat in the appropriate position according to the length of the tested part. Press down on the ball handle, insert the parts, and use two pointed tips to cover the center hole of the parts. Tighten the grip tightly to secure the tip. Place the activity table holder in the desired position. Product Name: Deflection Inspection Instrument (Specification: mm300 × 170300 × 300500 × 170500 × 250500 × 3001000 × 2501000 × 3002000 × 300)
This instrument is mainly used to detect the radial, circular, and end face circular runout of shaft and disk components. The product design is novel, aesthetically pleasing, high-precision, and extremely convenient to operate.
Main technical parameters:
1. The radial circular runout of the top 60 ° cone surface of Mohs cone No.2 is ≤ 0.005mm
2. The parallelism (horizontal and vertical directions) of the top axis to the guide rail within a range of 100mm is ≤ 0.006mm
3. The maximum diameter of the tested part is 270mm

4. Measure lengths of 300mm, 500mm, 1000mm, 1500mm, and 2000mm, and use a dial gauge (micrometer) to detect the workpiece

Specification (mm)	Measurement length (mm)	Measuring diameter (mm)	Accuracy error (um)
300	≤300	≤340	≤2
500	≤500	≤340	≤3
1000	≤1000	≤340	≤5
1500	≤1500	≤340	≤6

Specification (mm)	Length (mm)	Width (mm)	Height (mm)
300	700	500	100
500	900	500	130
1000	1400	500	150
1500	1900	500	200