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ecofinish series

z4050
ecofinish series

sku: z4050 · floor
best for: heavy-traffic interior floors in seismic zones with limited screed depth: airports, logistics, hospitals and car parks.

Introducing the Z-4050

The Z-4050 is a heavy-duty, low-profile seismic floor expansion joint cover for interior floors in seismic zones. Continuous recessed aluminum frames only 25 mm high carry a solid center plate in aluminum or stainless steel, held by turn bars or steel centering bars at 500 mm on center and bedded in elastomeric concrete or epoxy grout. It covers joints of 50 mm to 200 mm with load capacities of 100 kN to 120 kN, for airports, logistics, hospitals and car parks. The ZK-4050 variant closes the joint against a wall.
ECOFINISH Z4050 expansion joint cover
Multi-Directional Movement Multi-Directional Movement
Low Maintenance Low Maintenance
Water Barrier Water Barrier
Indoor / Outdoor Usability Indoor / Outdoor Usability
movement
01 — movement

seismic movement accommodation

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.

water barrier
02 — water barrier

water protection

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.

load bearing
03 — load bearing

load bearing

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.

assembly
04 — assembly

assembly in action

this video demonstrates the assembly process, perfectly designed for easy installation for durability and reliability.

Optional Vapor Barrier

For added protection, an optional vapor barrier is available, constructed from either EPDM or TPV, which offers high tensile and tear resistance, ensuring long-term performance against moisture penetration
Optional Vapor Barrier

Low 25 mm Recessed Frames

The recessed aluminum frames are only 25 mm high, which suits floors with limited screed depth. They are set in elastomeric concrete or epoxy grout (by others) so the center plate sits flush with the finished floor while carrying the rated load.
Low 25 mm Recessed Frames

Galvanized Steel Turn-bar for Structural Stability

The turn-bar component reinforces stability, enabling the system to accommodate multi-directional movement while keeping the cover aligned and stable.
Galvanized Steel Turn-bar for Structural Stability

System Drawing

The Z-4050 expansion joint cover system drawings cover joint widths of 50, 75, 100, 120, 150 and 200 mm in floor-to-floor and floor-to-wall (ZK-4050) conditions, with 25 mm high frames. Each size is downloadable as DWG and PDF.
System Drawing
interactive tool

gap size calculator

enter your expansion gap measurement to see if this product is right for you.

💳
20mm ≈ credit card
✌️
50mm ≈ two fingers
✊
100mm ≈ fist width
🖐️
200mm ≈ hand span
mm
z4050 covers gap sizes from 25mm to 300mm. enter your measurement above to see the movement capacity, profile width, and whether this product handles your requirements.

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technical data

profile specifications

model namejoint width (mm)height (mm)sightline (mm)movement capability (%)load capacity
z-4050-50ss5025/T:5150±50%120 kN
z-4050-757525/T:6188±50%120 kN
z-4050-100 (t:5)10025/T:5206±50%100 kN
z-4050-100 (t:8)10025/T:8206±50%120 kN
z-4050-12012025/T:6214±50%120 kN
z-4050-15015025/T:8250±50%100 kN
z-4050-20020025/T:5374±50%100 kN
zk-4050-505025/T:7128±50%120 kN
zk-4050-10010025/T:8200±50%120 kN
zk-4050-15015025/T:8255±50%100 kN
from the technical datasheet

datasheet specifications

SeriesPROFLEX RMS Series (Z-4050 & ZK-4050)
System typeHeavy-Duty Centre Bar Seismic Floor System
Suitable movementSeismic, Thermal, Settlement
Recommended forAreas 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
ComponentsExtruded Aluminum Support Profiles; Aluminum / Stainless Steel Cover Plate; Steel Turnbar Assembly
Material: Support ProfilesExtruded aluminum, grade AA 6063 preferred
Material: Cover PlateAluminum, Stainless Steel 304 or Stainless Steel 316
Material: TurnbarGalvanized Steel; finish: “A” Coating (Corrosion Protection)
Material: Vapor Barrier (Optional)Ethylene Propylene Diene Monomer (EPDM) or Thermoplastic Vulcanizate (TPV); black
Supply length3.00 m per piece (support profile and cover plate)
Substrate toleranceSurface level within ±2 mm; gap level within ±5 mm
SizesPer the system drawings; profiles can be customized to requirements

Source: Z4050 technical datasheet. Sizes and dimensions: profile specifications above and the system drawings.

alternatives

similar products to consider

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z5000
profinish series
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gap range
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movement
±100%
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z5002 standard
z5002
profinish series
premium commercial interiors, luxury hotels, and hospitals requiring pop-up seismic pan-type floor joints.
gap range
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movement
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z5500 premium
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Documents & Resources

Z4050 Technical Datasheet
PDF
Z4050 Installation Instruction
PDF
Z-4050-100 (T5)
PDF
Z-4050-100 (T8)
PDF
Z-4050-120
PDF
Z-4050-150
PDF
Z-4050-200
PDF
Z-4050-50SS
PDF
Z-4050-75
PDF
ZK-4050-100
PDF
ZK-4050-150
PDF
ZK-4050-50
PDF
Z-4050-100 (T5)
DWG
Z-4050-100 (T8)
DWG
Z-4050-120
DWG
Z-4050-150
DWG
Z-4050-200
DWG
Z-4050-50SS
DWG
Z-4050-75
DWG
ZK-4050-100
DWG
ZK-4050-150
DWG
ZK-4050-50
DWG
Z4050 Material Safety Datasheet
PDF
SPEC_Z4050_079500
DOCX
SPEC_Z4050_079513
DOCX PDF
MAXMIN.L.Z4050.100.T5-DWG
PDF
MAXMIN.L.Z4050.100.T8-DWG
PDF
MAXMIN.L.Z4050.120-DWG
PDF
MAXMIN.L.Z4050.150-DWG
PDF
MAXMIN.L.Z4050.200-DWG
PDF
MAXMIN.L.Z4050.50SS-DWG
PDF
MAXMIN.L.Z4050.75-DWG
PDF
MAXMIN.L.ZK4050.100-DWG
PDF
MAXMIN.L.ZK4050.150-DWG
PDF
MAXMIN.L.ZK4050.50-DWG
PDF

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