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QC_637-2
Cometech QC-637B Dropping Ball Impact Tester | Free-Fall Steel Ball, 5–200 cm, Electromagnet Control, JIS A5403 / K6745
- Drops a steel ball freely from a selected height onto a specimen's surface to evaluate impact resistance and observe surface damage condition.
- Drop height 5–200 cm, adjustable by ruler; release controlled by electromagnet for consistent, repeatable drops.
- Comes with two steel balls (500 g and 1000 g); size and weight can also be specified per test requirement.
- Optional red laser dot guide helps predetermine the exact drop point; protection wall prevents the ball from bouncing out of the test area.
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Overview
Cometech QC-637B Dropping Ball Impact Tester places the specimen on the machine platform, then drops a steel ball of a designated size and weight from a defined height in free fall onto the specimen's surface.
After impact, the operator observes the damaged condition of the surface; the test height and ball size are both adjustable to match the test conditions required for each specimen.
An optional laser guide component allows fine-tuning of the drop point position at different heights for greater targeting precision.
Key Features
- Electromagnet ball release control for consistent drop repeatability.
- Adjustable drop height (5–200 cm) with ruler scale.
- Protection wall around the testing area to prevent the steel ball from bouncing out.
- Optional: red laser dot for pre-determining the exact ball drop point.
- Suitable for testing plastics, glass, and electronics.
Standards
- JIS A5403
- JIS K6745
Full Specifications
| Model | QC-637B |
|---|---|
| Testing height | 5–200 cm (adjustable by ruler) |
| Ball dropping control | Controlled by electromagnet |
| Weight of steel ball | 500 g × 1, 1000 g × 1 (or specified) |
| Specimen placement space | 280 × 420 mm (or specified) |
| Protection | Protection wall around testing area to prevent dropping ball from popping out |
| Optional function | Red laser dot to predetermine the dropping point of the steel ball |
| Dimension | 46 × 46 × 215 cm |
| Weight | 40 kg |
| Power supply | Single phase 100–240 VAC |
Support materials
- Test video, teaching material, SOP, and test case (availability depends on configuration and region).