Item 280115.N: Siegmund Stop and Clamping Square 275 WL, nitrided, for System 28 welding tables with Ø28 mm bores. It combines system bores with a 200 mm elongated hole, so it works as a multifunctional adjustable angle, and also as a stop, particularly for large parts. BTH Sales is the exclusive Canadian importer of Siegmund.
Specifications
| Siegmund article | 280115.N (siegmund.com) |
|---|---|
| System | Siegmund System 28 (Ø28 mm bores, 100 mm grid) |
| Length | 275 mm (10.83 in) |
| Width | 50 mm (1.97 in) |
| Height | 175 mm (6.89 in) |
| Material thickness | 25 mm (0.98 in) |
| Weight | 2.5 kg (5.51 lb) |
| Finish | Nitrided |
| Adjustment | Combination of borehole and elongated hole; elongated hole 200 mm |
| GTIN | 4251805923124 |
Related products & accessories
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.
- Siegmund System 28: fits every System 28 Siegmund table, including the Professional Extreme 8.7 and 8.8 PLUS tables listed on bthsales.ca; on a System 16 table it needs Siegmund's Reduction Bushing 28->16 (000546, suits boreholes and elongated holes) with System 16 bolts, or the Combination Fast Clamping Bolt 28->16 (000520); neither is listed on bthsales.ca.
- 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 Stop and Clamping Square 275 WL nitrided (280115.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
- Multifunctional adjustable angle (Siegmund).
- Stop, particularly for large parts (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
How is the 275 WL different from the 275 L?
Siegmund lists the 275 WL at 275 x 50 x 175 mm with a 200 mm elongated hole, used as an adjustable angle and stop for large parts. The 275 L is 175 x 50 x 275 mm and serves as a table extension and adjustable stop for high components.
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 Stop and Clamping Square 275 L
- System 28 Stop and Clamping Square 175 WL
- System 28 bolts
- All Siegmund System 28 squares
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.




