


Item 280730.N: Siegmund Combi Adapter 225, nitrided, for System 28 welding tables with Ø28 mm bores. Siegmund designed it as an intake for its quick-release clamps; mounting them directly on the adapter suits low welding components, and the adapter also works as a conventional universal stop. BTH Sales is the exclusive Canadian importer of Siegmund.
Specifications
| Siegmund article | 280730.N (siegmund.com) |
|---|---|
| System | Siegmund System 28 (Ø28 mm bores, 100 mm grid) |
| Length | 225 mm (8.86 in) |
| Width | 50 mm (1.97 in) |
| Height | 25 mm (0.98 in) |
| Weight | 1.35 kg (2.98 lb) |
| Finish | Nitrided |
| Use | Intake for Siegmund quick-release clamps; universal stop |
| GTIN | 4251805923230 |
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Compatibility
- Fits: Siegmund System 28 welding tables and tooling with Ø28 mm bores on a 100 mm grid. Siegmund System 28 accessories also fit other 28 mm system welding tables with Ø28 mm bores on a 100 mm grid. Compatible tables from other manufacturers are often made from different materials and to different standards, so quality varies by manufacturer, compared with Siegmund's X8.7 tool steel.
- Not compatible: System 16 (Ø16 mm) tables; Siegmund builds each system around one bore size.
- Works with: other Siegmund System 28 clamps, bolts, stops, squares and U-squares on the same table.
- Care & grounding: anti-spatter spray, CleanBasic cleaner, Ground Connection Comfort (S16/S28).
What's included
- 1 x Siegmund Combi Adapter 225 nitrided (280730.N)
Engineering support & demos
Engineering support comes with your purchase: fixture design, layout drawings, CAD and 3D models, site visits and cobot cell planning, handled by Travis Hardcastle at BTH Sales or by Siegmund directly. BTH Sales does not sell cobots; for cobot cells we help with table integration and fixturing (see cobot welding with Siegmund tables). Live demos at our St. Marys showroom are by appointment (book a demo), and we offer video demos if you are outside Ontario. BTH Sales is family-owned, founded in 2001, and has been the exclusive Canadian importer of Siegmund since 2018.
Typical uses
- Mounting quick-change clamps low, for work with low welding components (Siegmund).
- Conventional universal stop (Siegmund).
- Siegmund describes System 28 as ideal for light to heavy components and designed for maximum clamping forces, multi-ton structures and high distortion forces.

Industries served: Siegmund's published practical examples show its welding tables and tooling in these sectors: Agriculture; Interior; Lighting and electrical engineering; Machine tools and plant construction; Measurement and testing technology; Motorcycle engineering; Revolving door systems; Robotic technology; Stage technology; Stainless steel processing; Steel, sheet metal and metal construction; Textile production; Train Construction; Vehicle construction; Welding technology; Woodworking.
Frequently Asked Questions
What is the Combi Adapter for?
Siegmund designed the Combi Adapter 225 as an intake for Siegmund quick-release clamps. Mounting the quick-change clamps directly onto it is especially useful for low welding components, and it can also be used as a conventional universal stop.
Which clamps mount on the adapter?
Siegmund quick-release (quick-change) clamps, such as the System 28 Quick-Change Clamp 100 or 160 listed under Related parts.
Will it fit other 28 mm welding tables?
Yes, if the table has Ø28 mm bores on a 100 mm grid. Check the bore diameter and grid before ordering. Compatible tables from other manufacturers are often made from different materials and to different standards, so quality varies by manufacturer, compared with Siegmund's X8.7 tool steel.
Related parts
- System 28 Quick-Change Clamp (280706 / 280707)
- System 28 fast clamping equipment
- System 28 adapter with hole pattern
- System 28 stops
- All Siegmund System 28 fast clamping equipment
Ships across Canada from 5 Industrial Rd, St. Marys, ON N4X 1G2, or pick up from our warehouse. Email sales@bthsales.ca or call +1-519-461-1381 with questions or for a freight quote.





