Name：Marshall compaction test
Model：ZMJ-IIA/B/C
Specification
| Item | Standard | Big model |
| Hammer weight | 4536g±9g | 10210g±10g |
| Drop height | 457.2±1.5mm | 457.2±2.5mm |
| Hammer speed | 60±5times/minute | 60±5times/minute |
| Test tube size | 101.6mm | 152.4mm |
| Counting range | 1－99 | 1－999 |
| Power | AC380V 50Hz | AC380V 50Hz |
| Motor Power | 250W 1400times/minute | 250W 1400times/minute |