Cembre RD21X21 hydraulic rectangular punching set for producing 21 × 21 mm openings in stainless steel electrical enclosures up to 3.5 mm thick.
£649.00
The Cembre RD21X21 Rectangular Punching Set (2685650) is a professional hydraulic rectangular punching tool engineered to produce precise 21 × 21 mm square holes in stainless steel electrical enclosures, switchgear and industrial control panels. Designed for demanding industrial environments, it provides fast, clean punching with minimal material distortion and excellent repeatability.
Manufactured by Cembre, a global leader in electrical connection and installation equipment, the RD21X21 is built for electrical contractors, OEMs and panel builders who require consistent, high-quality results when fabricating stainless steel cabinets and automation panels.
Designed for use on stainless steel up to 3.5 mm thickness, this hydraulic punching set offers a faster, cleaner alternative to conventional drilling while helping achieve a professional finish on electrical installations.
Hydraulic punching systems enable electrical installers to produce clean, accurate cut-outs in stainless steel enclosures far more efficiently than drilling or machining. They minimise burrs, reduce finishing work and help maintain the strength and appearance of finished panels.
The RD21X21 is designed for professional panel fabrication where consistent, accurately sized rectangular openings are required for industrial electrical equipment and automation systems.
| Manufacturer Part Number | 2685650 |
|---|---|
| Product type | Hydraulic rectangular punching set |
| Hole size | 21 × 21 mm |
| Maximum material thickness | 3.5 mm |
| Material compatibility | Stainless steel |
| Operation | Hydraulic punching |
| Application | Electrical enclosures and control panels |
| HS Code | 82079099 |
| Country of Manufacture | Italy |
It is used to punch precise 21 × 21 mm rectangular openings in stainless steel electrical enclosures and industrial control panels.
The RD21X21 is designed for stainless steel and is suitable for material thicknesses up to 3.5 mm.
The punching set produces a clean 21 × 21 mm rectangular (square) opening.
Hydraulic punching produces cleaner, more accurate openings with minimal burrs while significantly reducing installation time.
Electrical contractors, OEM manufacturers, control panel builders and industrial maintenance engineers commonly use this punching set.
Cembre hydraulic punching systems are trusted worldwide by panel builders and industrial electricians for producing accurate, repeatable enclosure cut-outs with professional results.
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LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...