STM Rock Breakers Heavy Duty Series was developed for a wide variety of applications. The high impact energy, the robust design and the ease of service make our breakers ideal for road construction work, trenching, concrete demolition, rock excavation and secondary rock breaking. The real strength of the breakers will become obvious when they work in tough jobs for long working hours and still continue to run without any technical problems.
Small Breaker
STM HD1G - HD10G
| Model | Weight (kg) | Carrier Weight | Technical | Product |
| HD1G | 62,5 | 0,8 - 1,8t | LINK | LINK |
| HD2G | 97 | 1,1 - 3,0t | LINK | LINK |
| HD3G | 153 | 2 - 4,5t | LINK | LINK |
| HD5G | 237 | 2,5 - 6t | LINK | LINK |
| HD7G | 268 | 4 - 6t | LINK | LINK |
| HD9G | 360,1 | 4,5 - 9t | LINK | LINK |
| HD10G | 542,2 | 7 - 13t | LINK | LINK |
Medium Breaker
STM HD15G - HD26G
| Model | Weight (kg) | Carrier Weight | Technical | Product |
| HD15G | 848,1 | 12 - 18t | LINK | LINK |
| HD18G | 1258,8 | 15 - 26t | LINK | LINK |
| HD20G | 1439,6 | 19 - 29t | LINK | LINK |
| HD26G | 2667,5 | 20 - 32t | LINK | LINK |
Heavy Breaker
STM HD30G - HD70G
| Model | Weight (kg) | Carrier Weight | Technical | Product |
| HD30G | 2055 | 25 - 38t | LINK | LINK |
| HD35G | 2322,3 | 28 - 44t | LINK | LINK |
| HD45G | 2678,2 | 33 - 52t | LINK | LINK |
| HD50G | 3357,6 | 40 - 70t | LINK | LINK |
| HD60G | 4517,3 | 60 - 100t | LINK | LINK |
| HD70G | 5580,8 | 75 - 120t | LINK | LINK |