HomeCuplock Scaffolding: Cup and Lock System
Cuplock Scaffolding: Cup and Lock System
Cuplock scaffolding uses a cup and lock joint at every 500 mm on the standard. Ledgers seat into the bottom cup and the top cup locks them in place.
Cuplock standards
| Length | Cup joints | Cup spacing | Tube | Finish |
|---|---|---|---|---|
| 0.5 m | 1 | 500 mm | Ø48.3 mm | Hot-dip galvanized or painted |
| 1.0 m | 2 | 500 mm | Ø48.3 mm | Hot-dip galvanized or painted |
| 1.5 m | 3 | 500 mm | Ø48.3 mm | Hot-dip galvanized or painted |
| 2.0 m | 4 | 500 mm | Ø48.3 mm | Hot-dip galvanized or painted |
| 2.5 m | 5 | 500 mm | Ø48.3 mm | Hot-dip galvanized or painted |
| 3.0 m | 6 | 500 mm | Ø48.3 mm | Hot-dip galvanized or painted |
Nominal dimensions. Wall thickness 2.75 / 3.0 / 3.5 mm, customizable. Unit weights and load data are issued with the quotation.
How the Cup Joint Works
Fixed bottom cups are welded on each cuplock standard at 500 mm intervals. You drop the ledger blade ends into the bottom cup, then bring the top cup down over them and rotate it to lock. No bolts, no wedges.
Inspection from ground level is easy. If you see a gap in the top cup, the connection isn't locked. That's a big deal when crews are working fast on repetitive access and support structures.
Cuplock really shines for slab shoring, facade access, and straight-run scaffolding. The 500 mm cup spacing sets a fixed vertical module, so ledgers and braces fit without measuring. Some people call it cup lock scaffolding or cup and lock scaffolding.
VANHN manufactures cuplock standards and ledgers in 48.3 mm tube. Hot-dip galvanized finish is standard. Painted options are available too.
Cuplock ledgers
| Bay length | Tube | End fitting |
|---|---|---|
| 0.6 m | Ø48.3 mm | Forged blade end |
| 0.9 m | Ø48.3 mm | Forged blade end |
| 1.2 m | Ø48.3 mm | Forged blade end |
| 1.5 m | Ø48.3 mm | Forged blade end |
| 1.8 m | Ø48.3 mm | Forged blade end |
| 2.5 m | Ø48.3 mm | Forged blade end |
Nominal dimensions. Other bay lengths are made to order.
Cuplock vs Ringlock
| Aspect | Cuplock | Ringlock |
|---|---|---|
| Joint | Cup and lock with rotating top cup | Rosette plate with wedge pin |
| Erection speed | Fast, no loose parts | Fast, hammer only |
| Angles | Mainly right angles, limited flexibility | Eight directions per rosette |
| Typical use | Straight access and shoring | Complex geometry and heavy loads |
| Finish | Hot-dip galvanized or painted | Hot-dip galvanized or painted |
Get a quotation with matching dimension sheets
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- Made in our own plant, 100,000 m², founded 2016
- Hot-dip galvanized, painted or powder coated
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