The GBN20TL hydraulic breaker, also identified as the GBM90L, is a compact silenced T-Series hydraulic breaker designed for small excavators and light-to-medium demolition, construction, and breaking applications. Its compact design provides an effective hydraulic attachment solution for excavators in the 1.2 to 3 ton class.
The GBN20TL is designed for operators who need a compact hydraulic breaker for smaller excavators. Using a 45 mm moil-type tool, the breaker delivers an impact energy of 168 joules (124 ft-lb) with an impact rate of 700–1,200 blows per minute.
The silenced GBN20TL has an operating weight of 145 kg (320 lb), making it well suited to compact excavators. The specified excavator range is 1.2 to 3 tons, with approximately 2 tons listed as the suitable operating class.
The breaker requires a hydraulic oil flow of 20–35 L/min and operates at a breaker pressure range of 80–100 bar (1,160–1,450 psi). Proper hydraulic flow and pressure matching should be confirmed with the carrier excavator before installation.
Suitable for lighter demolition work where a compact hydraulic breaker provides the required impact performance without adding unnecessary weight to the carrier machine.
Designed for compact excavator applications involving concrete, masonry, and general construction breaking work.
The 45 mm moil-type tool and 168 J impact energy provide a practical configuration for breaking concrete and masonry in smaller-scale applications.
Designed for excavators in the 1.2–3 ton range, with a suitable operating class of approximately 2 tons.
| Specification | GBN20TL / GBM90L |
|---|---|
| Series | T-Series |
| Base Model | GBM90 |
| Breaker Model | GBN20TL |
| Configuration | Silenced |
| Operating Weight – Silenced (Tool + Machine) | 145 kg / 320 lb |
| Operating Weight – Open Top | 86 kg / 190 lb |
| Main Body Weight | 60 kg |
| Tool Type | Moil |
| Tool Weight | 6.0 kg |
| Tool Diameter | 45 mm |
| Operating Pressure – Breaker | 80–100 bar / 1,160–1,450 psi |
| Setting Pressure – Machine | 150 bar / 2,175 psi |
| Impact Rate | 700–1,200 bpm |
| Accumulator Pressure | None |
| Back Head Pressure (N2 Gas) | 14 bar / 203 psi |
| Required Oil Flow | 20–35 L/min / 5.3–9.2 GPM |
| Minimum Excavator Size | 1.2 tons |
| Maximum Excavator Size | 3 tons |
| Recommended / Suitable Excavator Class | 2 tons |
| Impact Energy | 168 J / 124 ft-lb |
Important: Hydraulic flow and pressure requirements should be verified against the excavator manufacturer's specifications before installation. Actual attachment operating conditions may vary depending on the carrier machine, hydraulic system, tooling, and application.
