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Drilling holes into steel control panels with standard hole saws or twist drills is a frustrating, time-consuming process. It creates excessive noise, generates burning metal shavings, and often distorts the surrounding sheet metal or ruins the powder-coated finish. For panel builders and M&E contractors, these outdated methods slow down the entire installation process and risk damaging expensive electrical enclosures.
The Zupper portable hydraulic hole puncher ECH-20 was manufactured to replace those inefficient drilling methods. As a highly mobile, battery-powered hydraulic tool, it is specifically used for punching perfectly round, burr-free holes in up to 6mm heavy steel, copper, and aluminum materials. It delivers immense hydraulic force to shear through thick metal instantly, ensuring a flawless finish for mounting push buttons, indicator lights, and heavy cable glands without compromising the structural integrity of your control cabinets.

Portable hydraulic hole puncher ECH-20 - 6mm thick
This tool is engineered to solve the most common frustrations encountered during custom metal fabrication and panel building.
Unlike abrasive drilling that creates heat and flying sparks, the ECH-20 operates using a cold-shearing hydraulic press mechanism. As the die pulls through the metal, it creates a perfectly clean, round cut. There is zero metal distortion around the edges, meaning you do not need to spend extra time filing or repainting the punched area. Furthermore, the built-in mesh protective baffle prevents any metal fragments from flying out, ensuring maximum operator safety.
Electrical cabinets and industrial trenches rarely offer generous working space. To combat this, the battery hydraulic hole puncher ECH-20 features a tool body and hand-held section that can be rotated 360 degrees, complete with a 4x90-degree damping rotator. This allows you to position the punching head at the exact angle you need, making it incredibly easy to punch holes in tight corners or overhead positions.
A critical metric for any hole puncher is how far it can reach into the material. The cordless hole puncher ECH-20 boasts a 40mm throat depth, allowing you to easily punch holes well within the margins of thick steel plates, angle iron, or U-channel steel without the tool body restricting your access.
Powered by a high-performance brushless motor, the tool runs cooler and more efficiently than older models. It features an integrated stroke control device; once the punching cycle is complete, the piston automatically returns to its starting position. This eliminates the need for manual resets and allows you to move rapidly from one punch to the next.
To ensure this equipment meets your on-site demands, here are the precise operational limits of the ECH-20:
| Punching Shape: | Round |
| Max Punching Dia: | Ø 20mm |
| Max Thickness of Sheet: | 6mm (Steel), 8mm (Copper) |
| Max Depth of Throat: | 40mm |
| Rated Stroke: | 15mm |
| Rated Voltage: | DC20V |
| Tool Size: | 410×128×313mm |
| Weight: | 11.2kgs(with handle and 4.0Ah battery) |
| Accessories | |
| Battery: | 2pcs |
| Charger: | 1pc |
| Hex wrench: | 1pc 3mm and 1pc 4mm |
| Round punch dies: | Ø 6.5/9/13/17/20.5mm |
| Wrench: | 1pc 10mm |
| Disassembly wrench: | 1pc |
| Handle: | 1pc |
For active construction sites and high-volume panel builders, waiting on international shipping lines for specialized tools is a massive liability.
At Asia Pro Equip, we stock the Zupper ECH-20 cordless hydraulic hole puncher directly in our regional distribution centers across Singapore and Malaysia. The moment your procurement order is confirmed, the equipment is handed over to our local logistics network, ensuring it arrives at your workshop or job site without unnecessary customs delays.
Ready to drop the hole saws and experience the speed of hydraulic punching? Contact our technical sales team to verify available stock, request a clear B2B pricing quote, and secure your equipment for immediate delivery.
Corporate Sales & RFQ: [email protected]
| Punching Shape: | Round |
| Max Punching Dia: | Ø 20.5mm |
| Max Thickness of Sheet: | 6mm (Steel), 8mm(Copper) |
| Max Depth of Throat: | 40mm |
| Rated Stroke: | 15mm |
| Rated Voltage: | DC20V |
| Tool Size: | 410×128×313mm |
| Weight: | 11.2kgs (with handle and 4.0Ah battery) |
| Accessories | |
| Battery: | 2pcs |
| Charger: | 1pc |
| Hex wrench: | 1pc 3mm and 1pc 4mm |
| Round punch dies: | Ø 6.5/9/13/17/20.5mm |
| Wrench: | 1pc 10mm |
| Disassembly wrench: | 1pc |
| Handle: | 1pc |
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