When specifying vehicle extrication equipment for a fire appliance or USAR unit, procurement teams typically evaluate two architectures: battery-powered (cordless) electric rescue tools and hose-connected hydraulic rescue tools driven by a separate hydraulic power unit. At CenTall, both lines operate at 72 MPa (720 bar) and share the same core cylinder and blade metallurgy—so cutting and spreading forces are identical. The difference lies in how crews deploy and handle them at the scene.
1. Deployment Speed and Mobility
- Battery-powered rescue tools integrate the hydraulic pump, brushless motor and 28 V 5.6 Ah lithium battery into the tool body. A single rescuer can grab the SC-358 E2 combi tool or S-312 E2 cutter from the locker and begin cutting immediately—up an embankment, inside a stairwell or down a flooded underpass.
- Hose-connected hydraulic tools require connecting coaxial or twin hoses to an external pump such as the XT-072 double-output petrol motor pump. While setup takes 30–60 seconds longer, one double-output pump can power two tools simultaneously.
2. Weight in the Hands vs. Continuous Runtime
| Parameter | Battery Tool (e.g. SC-358 E / E2) | Hose-Connected Tool (e.g. SC-358) |
|---|---|---|
| Working pressure | 72 MPa | 72 MPa |
| Round bar cutting capacity | Φ35 mm | Φ32–40 mm |
| Spreading distance | 370 mm | 370 mm |
| Weight held by operator | 18.5 kg (+ 1.3 kg battery) | 14.3 kg |
| Power source | On-board 28 V 5.6 Ah battery | External petrol, electric or hand pump |
Because the pump and motor sit in a separate power unit on the ground, a hose-connected hydraulic cutter or spreader is roughly 3 to 4 kg lighter in the operator's hands—an advantage during overhead cuts on roof pillars or multi-hour bus/truck extrications.
3. Wet Weather and Underwater Rescue (IP68)
Standard battery tools from many suppliers are limited to splash resistance. CenTall's amphibious electric rescue series (combi tools, spreaders, rams and wedges) is sealed to IP68, allowing crews to operate and even swap batteries under water.
Recommended Fleet Configuration
Many fire brigades combine both systems on a first-response appliance: a cordless IP68 combi tool or cutter for immediate first-minute access, backed by a 72 MPa hose-connected set for prolonged heavy extrication. Contact CenTall for complete technical data sheets and factory-direct tender pricing.