Shoe heat insulation testing machine -- sand bath

Standard

GB/T 20991: Determines thermal insulation of safety shoe soles under simulated hot surface exposure.

EN ISO 20344: European standard for personal protective equipment (PPE) footwear thermal resistance testing.

Product Features

Sand Bath System:

Heated Plate: 300mm × 300mm aluminum plate with 50mm silica sand layer.

Uniform Heating: Embedded cartridge heaters with thermal diffusers.

Temperature Control:

PID controller with auto-tuning for rapid setpoint convergence.

Over-temperature alarm with 5°C differential protection.

Sensing Suite:

2 × K-type thermocouples for sand bath and shoe interior.

1.5m cable length for flexible probe placement.

Safety Systems:

Category II electrical safety certification (EN 60529).

Residual current device (RCD) for operator protection.

Software Bundle:

ThermShoe Pro™: Auto-calculates thermal gradient (°C/min) and insulation index.

Cloud PPE: Remote monitoring for global R&D teams.

Accessories & Options

Standard Kit:

100 × 50g calibration steel balls (316L stainless).

2 × K-type thermocouples with color-coded connectors.

Software Add-Ons:

Batch Processor: Queue 24/7 unattended testing.

API Integration: Connect to MATLAB/Python for custom analytics.

Safety Upgrades:

Explosion-proof enclosure for volatile environments.

HEPA filtration for particle-sensitive labs.

Calibration Services:

Annual recalibration with NIST-traceable certificate.

Consumables:

10L Replacement silica sand (high-purity, 0.5–1mm grain).

1L Thermal paste for sensor calibration.

Technical Parameters

Specification	Details
Heat Plate Dimensions	300mm (L) × 300mm (W) × 50mm (H)
Temperature Range	50°C to 200°C (adjustable in 1°C increments)
Control Accuracy	±0.5°C (±0.1°C with calibration kit)
Sand Layer Depth	50mm (industrial silica sand included)
Steel Ball Load	5kg total (100 × 50g balls, 316L stainless)
Power Supply	220V/50Hz (110V/60Hz available)
Dimensions (W×D×H)	400mm × 400mm × 600mm
Weight	35 kg (net)

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