Application
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;

Specification

Model		JD25H
Measurement range	Absolute measurement (mm)	0~100
	Relative measurement (mm)	0~670
Internal size(mm)	When using a small measuring hook	When maximum extending in depth up to 12,  the maximum arm thickness of 50, 10~400
	When using a large measuring hook	When maximum extending in depth up to 50,  the maximum arm thickness of 85, 30~370
	When using a electric measuring hook	1~60
	when using a universal measuring hook	14~112
Universal worktable	Area of installation	160mm×160mm
	Range of height adjustment	0~100mm
	Transverse travel	25mm
	Y-Gradient	±3°
	Rotation of worktable	±4°
Fitting size for the measuring cap's internal diameter		φ6H7
Size of outer diameter between the reference rod and the measuring cap's internal diameter		φ6g6
Intermediate diameter between internal screws (mm)	While using a small measuring hook	small screw diameter of 13~30
	While using a large 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 (mm)	1~6
Measuring force		0N    1.5N   2.5N
Digital display equivalent		0.0001mm
Variability of the instrument display value	While measuring the external size	2σ≤0.3μm
	while measuring the internal size	2σ≤0.5μm
Accuracy	While conducting absolute measurement for  external size	0.4μm
	While conducting absolute measurement for  internal size	0.8μm
Load capacity		10kg
Overall size (mm)		960×390×450
Weight		150kg