Installation & anchoring
The complete ensemble can be anchored with cast-in embedded anchors in a new concrete footing, with expansion anchor bolts into an existing cured slab, or on a relocatable angle plate bolted to a hard surface. We supply the matching hardware for whichever method you choose — tell us at quotation stage.


All three methods are standard for this set. The diagrams are schematic — footing size, embedment depth, edge distances and bolt grade must be confirmed by your project's engineer of record for local soil, frost and loading conditions.
A J-bolt cage is positioned in the formwork and cast into a fresh concrete footing. Once the concrete has cured, the instrument base plate is set over the projecting threads and fastened down.
Holes are drilled into an existing cured concrete slab and the base plate is fixed with mechanical expansion anchors (wedge / through bolts). Tightening expands the sleeve against the bore to lock the bolt in place.
The instrument is fixed to a steel angle plate that is bolted to an existing hard surface, so it can be moved or repositioned later without casting concrete.
US specifications for public play spaces commonly cite the following. They are listed here as design references your authority may apply, not as product certifications we claim to hold.
| ASTM F1487 | Standard consumer safety performance specification for playground equipment for public use. |
| ASTM F1292 | Impact attenuation of surfacing within the use zone of play equipment. |
| ASTM F1951 | Accessibility of surface systems under and around play equipment. |
| 2010 ADA Standards | Accessible routes and ground-level play components, where applicable. |
Our instruments have no assigned critical fall height of their own. Where they sit inside the use zone of play equipment, the surrounding surfacing and route are governed by that equipment's design. We supply project-specific documentation on request; we do not claim a completed third-party ASTM assessment or IPEMA certification.
Wash down with mild detergent, inspect fixings and mallet tethers periodically, and replace wear parts as needed. The care & maintenance schedule ships with the set. 10-year structural, 5-year finish and 2-year wear-parts warranty applies from date of acceptance.
Per-instrument drawings
Each instrument in the set ships with its own installation drawing. The drawings below show the assembly and the two ground methods — expansion bolts for hard ground, or embedded anchors for soft ground. Reference labels are shown in the original language; the steps and parts list here are the English translation.
The large chime panel: mallet assemblies on a stainless frame, with two ground methods.

| # | Part | Spec | Qty |
|---|---|---|---|
| 1 | Mallet assembly | M6x12 / M6x45 | 2 |
| 2 | M6 pan-head bolt | M6x45 | 2 |
| 3 | Mallet bracket | - | 2 |
| 4 | Aluminium clamp | - | 2 |
| 5 | M6 hex-socket bolt | M6x12 | 2 |
| 6 | M8 expansion bolt | M8x80 | 8 |
| 7 | Cover cap | - | 8 |
| 8 | Embedded anchor assembly | - | 8 |
The drum body on a custom cross base, with two ground methods.

| # | Part | Spec | Qty |
|---|---|---|---|
| 1 | Drum body | - | 1 |
| 2 | M6 pan-head bolt | M6x60 | 12 |
| 3 | Custom cross base | - | 1 |
| 4 | M8 expansion bolt | M8x80 | 12 |
| 5 | Embedded anchor assembly | - | 12 |
The marimba: brackets, mallet assembly and tube, with two ground methods.

| # | Part | Spec | Qty |
|---|---|---|---|
| 1 | Small bracket | - | 1 |
| 2 | Large bracket | - | 1 |
| 3 | M6 hex-socket bolt | M6x12 | 6 |
| 4 | Main body | - | 1 |
| 5 | Mallet assembly | - | 1 |
| 6 | Self-tapping screw | ST4x35 | 2 |
| 7 | Aluminium clamp | - | 2 |
| 8 | M8 expansion bolt | M8x80 | 4 |
| 9 | Embedded anchor assembly | - | 4 |
| 10 | Cover cap | - | 4 |
The small chime panel: brackets and gong-plate assembly, with two ground methods.

| # | Part | Spec | Qty |
|---|---|---|---|
| 1 | Small bracket | - | 1 |
| 2 | Large bracket | - | 1 |
| 3 | M8 hex-socket countersunk bolt | M8x12 | 2 |
| 4 | Flat washer | - | 2 |
| 5 | Gong-plate assembly | - | 1 |
| 6 | Self-tapping screw | ST4x16 | 2 |
| 7 | Corner washer | - | 1 |
| 8 | M8 expansion bolt | M8x80 | 4 |
| 9 | Embedded anchor assembly | - | 4 |
| 10 | Cover cap | - | 4 |
Send us your site address, delivery port and any specification text. We will return a written quotation, a packing list and the document copies you need.