
the z-4050 accommodates ±50% of nominal joint width in multiple directions. the center plate, held by turn bars or steel centering bars at 500 mm on center, stays flush with the floor during thermal movement and returns to center after seismic displacement.
an optional water barrier membrane can be specified with the z-4050. it is draped into the gap and retained by the base frames, so no mechanical punctures pass through the membrane sheet. order it together with the system.
a solid center plate in aluminum (5 mm or 8 mm) or stainless steel (5 mm to 6 mm) gives the z-4050 load capacities of 100 kn to 120 kn, depending on plate thickness, for heavy-traffic floors such as airports and hospitals.
this video demonstrates the assembly process, perfectly designed for easy installation for durability and reliability.
Recessed aluminum frames only 25 mm high are bedded in elastomeric concrete or epoxy grout, so the solid center plate finishes flush with the surrounding floor. The plate is available in aluminum or brushed stainless steel, and the ZK-4050 variant closes the joint neatly against a wall for a clean, low-profile transition.



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| model name | joint width (mm) | height (mm) | sightline (mm) | movement capability (%) | load capacity |
|---|---|---|---|---|---|
| z-4050-50ss | 50 | 25/T:5 | 150 | ±50% | 120 kN |
| z-4050-75 | 75 | 25/T:6 | 188 | ±50% | 120 kN |
| z-4050-100 (t:5) | 100 | 25/T:5 | 206 | ±50% | 100 kN |
| z-4050-100 (t:8) | 100 | 25/T:8 | 206 | ±50% | 120 kN |
| z-4050-120 | 120 | 25/T:6 | 214 | ±50% | 120 kN |
| z-4050-150 | 150 | 25/T:8 | 250 | ±50% | 100 kN |
| z-4050-200 | 200 | 25/T:5 | 374 | ±50% | 100 kN |
| zk-4050-50 | 50 | 25/T:7 | 128 | ±50% | 120 kN |
| zk-4050-100 | 100 | 25/T:8 | 200 | ±50% | 120 kN |
| zk-4050-150 | 150 | 25/T:8 | 255 | ±50% | 100 kN |
| Series | PROFLEX RMS Series (Z-4050 & ZK-4050) |
|---|---|
| System type | Heavy-Duty Centre Bar Seismic Floor System |
| Suitable movement | Seismic, Thermal, Settlement |
| Recommended for | Areas where Wider Joint Openings are present; Areas where Joint Openings are exposed to Heavy Traffic Loads such as Carparks; Areas where Multi-Directional/Seismic Movement is expected or specified |
| Components | Extruded Aluminum Support Profiles; Aluminum / Stainless Steel Cover Plate; Steel Turnbar Assembly |
| Material: Support Profiles | Extruded aluminum, grade AA 6063 preferred |
| Material: Cover Plate | Aluminum, Stainless Steel 304 or Stainless Steel 316 |
| Material: Turnbar | Galvanized Steel; finish: “A” Coating (Corrosion Protection) |
| Material: Vapor Barrier (Optional) | Ethylene Propylene Diene Monomer (EPDM) or Thermoplastic Vulcanizate (TPV); black |
| Supply length | 3.00 m per piece (support profile and cover plate) |
| Substrate tolerance | Surface level within ±2 mm; gap level within ±5 mm |
| Sizes | Per the system drawings; profiles can be customized to requirements |
Source: Z4050 technical datasheet. Sizes and dimensions: profile specifications above and the system drawings.
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