Carpet Static Load Tester

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Instrument Description

When furniture is moved, imprints are often left at the position of its feet. These imprints will disappear only when the carpet recovers to its original thickness. This instrument provides a convenient and reliable method to imitate such imprints and test the recovery of carpets after being compressed. This instrument applies a heavy load to the sample within a specified time, usually a pressure of 7 kg/cm² for 24 hours, with a stressed area of 6.0 cm², making it easy to place the WIRA digital thickness gauge in the compressed area. This device complies with the requirements of BS 4939 *Determination of the reduction in thickness of carpets after long - term heavy static loading*. The experiment is applicable to all textile carpets with the same thickness and structure, and is also applicable when measuring areas with different thicknesses and structures separately.

Compliance Standards

BS 4939: 1987(1996), ISO3416: 1986 Wools of New Zealand test method 124 Part B

Instrument Features

Simulate the imprints caused by furniture

Meet international standard requirements

Combine the static load tester with the thickness gauge, saving a lot of testing time

Simple, compact and durable

Parameters

• Static pressure: 7.0 kg/cm² (≈ 0.70 MPa)
• Loading area: 6.0 cm² (Ø ≈ 27.6 mm circular foot)
• Load accuracy: ±0.5 % F.S.
• Dwell time: 1 min – 99 h 59 min (programmable; 24 h is standard)
• Thickness measurement range: 0 – 50 mm
• Thickness resolution: 0.01 mm
• Recovery observation period: up to 24 h (programmable)

• Frame: anodized aluminum and stainless steel
• Loading foot: polished stainless steel, interchangeable weights
• Test bed: 250 mm × 250 mm (accommodates standard carpet tiles)
• Safety: transparent polycarbonate guard with interlock

• Controller: 4.3-inch color touch-screen PLC
• Data export: USB flash drive (CSV format)
• Power supply: 220 V AC ±10 %, 50/60 Hz, 300 W
• Dimensions: 450 W × 480 D × 650 H mm
• Net weight: ≈ 45 kg

• Operating temperature: 15 °C – 35 °C
• Relative humidity: 20 % – 80 % RH, non-condensing

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