JD25-HLength Measuring Machine

High quality casting, after long term natural aging treatment, are selected for the base, with fine stability.
Optimized square design is adopted for the spindle to assure the stability of it's kinetic property under measurement.
Accessories with powerful and multiple functions may be selected to satisfy different requirement in measurement.
The infrared light-emitting component with low voltage, small current, small volume and long life are adopted as the light source in the grating lighting system.
The high precision measuring system is adopted for this instrument, which would be in conformity with the Abel Principle and with high precision in measurement.
The imported grating system has high precision and reliable stability; The main measuring axis adopts optimum square design so as to ensure the moving stability; The function is powerful by connecting to computer, which can rectify the measuring error caused by indicating value and temperature variation. And it has the function for automatically fin reversal point;

Data Processing Universal Metroscope
Feature
High quality casting, after long term natural aging treatment, are selected for the base, with fine stability.
Optimized square design is adopted for the spindle to assure the stability of it's kinetic property under measurement.
Accessories with powerful and multiple functions may be selected to satisfy different requirement in measurement.
The infrared light-emitting component with low voltage, small current, small volume and long life are adopted as the light source in the grating lighting system.
The high precision measuring system is adopted for this instrument, which would be in conformity with the Abel Principle and with high precision in measurement.
The imported grating system has high precision and reliable stability; The main measuring axis adopts optimum square design so as to ensure the moving stability; The function is powerful by connecting to computer, which can rectify the measuring error caused by indicating value and temperature variation. And it has the function for automatically fin reversal point;

Technical Parameters
Universal Working table
Area of installation: 160mm× 160mm
Range of height adjustment: 0~100mm
Transverse travel: 25mm
Y-Gradient: ± 3°
Rotation of the working table: : ± 4°
Permissible load: 10kg
Fitting size for the measuring cap's internal diameter: φ 6H7
Size of outer diameter between the reference rod and the measuring cap's internal diameter: φ 6g6

Measuring range:
External size(mm): Absolute measurement: 0~100
Relative measurement: 0~670
Internal size(mm)
While using a small measuring hook (when maximum extending- in depth up to 12, the maximum arm thickness of 50): 10~400
While using a large measuring hook (when maximum extending- in depth up to 50, the maximum arm thickness of 85): 30~370
Using a electric measuring hook (mm): 1~60
Using a universal measuring hook (mm): 14~112
Intermediate diameters between internal screws (mm)
While using a small measuring hook (small screw diameter of 13~30)
While using a small measuring hook {small screw diameter of 31~ (70-arm thickness)*2}
Screw pitch (mm): 0.5~6
Intermediate diameters between external screws (mm):
Maximum: 200 Screw pitch: 1~6
Measuring force (N): 0; 1.5: 2.5
Digital display equivalent: 0.0001mm
Variability of the instrument display value:
While measuring the external size, 2σ <>
While measuring the internal size, 2σ <>
Accuracy of the instrument:
A. External direct measurement the accuracy is 0.4μ M
B. Internal measurement the accuracy is 0.8μ M

In the formula L representing the measured size, with it's unit mm
Overall size of the instrument (mm): Length× Width× Height=960× 390× 450
Net weight of the instrument: 150kg
Operating environment of the instrument: Room temperature is 20 centigrade± 0.5 centigrade, and relative humidity can not exceed 60%