1、 Purpose:
The XJL-300B drop hammer impact testing machine is suitable for measuring the external impact resistance of various pipes (water supply pipes, sewage pipes, low-pressure water supply pipes, low-pressure water supply pipes, core foam pipes, double wall corrugated pipes) and plates.
　　2、 Applicable standards:
JB/T9389 GB/T14152、GB/T14153、GB/T6112、 GB/T5836、GB/T10002.1、GB/T10002.3、GB/T13664、GB/T16800、GB/T18477

3、 Characteristics:
1. Digital display of impact height, with functions such as automatic suction hammer, automatic zeroing, automatic lifting, and automatic prevention of secondary impact.
2. Two test speeds are used for pre reaching height and zero point. High speed operation is used for long-distance ascent or descent to save test time. When the hammer approaches the pre reaching height, the motor automatically switches to low speed to avoid height positioning deviation caused by motor inertia.
3. This machine is driven by a chain for ascending and descending, and the chain, sprocket, and motor work together to avoid entanglement caused by wire rope transmission.
4. The dual tube structure ensures safer and more reliable operation.
　　4、 Main technical parameters:
1. Maximum impact energy: 300J
2. Hammer mass: 0.25Kg to 15.000kg (0.125kg per increment)
3. Hammer head curvature radius: d25, d90 or R5mm R10mm、R30mm、R50mm
4. Impact height: 50mm-2000mm
5. Impact height error: ± 2mm
6. Sample specifications: Φ 16mm - Φ 400mm (test diameter can be increased according to requirements)
7. Power supply: 220V, 50Hz
8. Dimensions: 800 × 800 × 3370mm
9. Whole machine weight: 330kg

5、 Configuration List: