Application Fields
The CST-50 Impact Specimen Notch Projector is a specialized optical instrument designed and developed in accordance with the actual needs of domestic users and the requirements for impact specimen notches specified in GB/T 229-2020 Metallic materials—Charpy pendulum impact test method. It is exclusively used for inspecting the machining quality of Charpy V-notch and U-notch impact specimens.
The instrument utilizes the optical projection method to magnify and project the contour of the tested V or U notch onto the projection screen. The magnified image is then compared with the standard template diagrams of V and U notches printed on the screen to verify whether the machined notch is qualified. It features easy operation, intuitive comparison, and high inspection efficiency.
Main Technical Specifications
Projection Screen Diameter: φ180 mm
Stage Dimensions:
Square stage: 110×125 mm
Square stage diameter: 90 mm
Stage glass diameter: 70 mm
Stage Travel:
Longitudinal: ±10 mm
Transverse: ±10 mm
Vertical lifting: ±12 mm
Stage Rotation Range: 0–360°
Instrument Magnification: 50×
Objective lens magnification: 2.5×
Projection lens magnification: 20×
Light Source (Tungsten Halogen Lamp): 12V, 100W
Power Supply: 220V, 50Hz
Overall Dimensions: 515×224×603 mm
Weight: 20 kg
Main Equipment Configuration
CST-50 Projector Main Unit: 1 set
Base Adjustment Knobs: 4 pcs
Power Cord: 1 pc
Tungsten Halogen Lamps: 2 pcs
Flat Glass: 1 pc
Operating Conditions
a. Ambient temperature: 0–25 °C
b. Relative humidity: ≤ 85%
c. Environment free of corrosive agents
d. Installed on a flat and stable surface
