Standards:

Applications:

Product Information:

This instrument is mainly used to test the cold resistance and flexing resistance of footwear and shoe materials in low-temperature environments. The purpose is to evaluate how materials or finished products perform under cold climate or low-temperature conditions.Various flexing test devices can be installed inside the chamber to conduct different bending or flexing tests.

Functions

Testing the flexing resistance of sole specimens and similar materials.

Evaluating the cold resistance and bending performance of materials under low-temperature environmental conditions.

Standards

GB/T 20991-2007

EN ISO 20344:2012

QB/T 2224-2017

SATRA TM25

ISO 4643

ISO 5423

Fixture Configuration Parameters

Group A – Upper Leather Flexing Fixture

Flexing speed: (100 ± 10) r/min

Flexing stroke: (19 ± 1.5) mm

Specimen size: (70 ± 1) mm × (64 ± 1) mm

Number of test samples: 12 specimens

Fixture clamping angle: (40 ± 1)°

Technical Specifications

Control system: Balanced temperature control system

Temperature range: -40°C ~ +150°C

Temperature fluctuation: ≤ ±0.5°C

Temperature uniformity: ≤ 2°C

Temperature accuracy: ±0.2°C

Heating time:+25°C → +85°C: approximately 30 minutes under no-load conditions

Cooling time:+25°C → -40°C: approximately 30 minutes to reach -20°C under no-load conditions

Standard Test Chamber Configuration：

Observation window: 320 × 420 × 40 mm, three-layer vacuum tempered glass

Handle: Flush-mounted embedded handle

Door hinge: SUS #304 imported stainless steel hinge

Interior lighting: LED energy-saving lamp

Cable port: φ50 mm × 1 (with rubber plug)

Heating rate: 3–5°C/min (average)

Cooling rate: 0.7–1°C/min (average)

Standard Accessories Supplied

Main testing machine: 1 unit

Cutting die: 1 piece

Instruction manual: 1 copy

Delivery note: 1 copy

Packing list: 1 copy

Features

Surface treatment: The machine body uses DuPont powder coating (USA) with an electrostatic spraying process, cured at 200°C high temperature to ensure long-lasting color stability without fading.

Inner chamber: Made of high-quality stainless steel, with semi-circular corner design for easier cleaning.

Air circulation system: A well-designed air duct and circulation system ensures excellent temperature uniformity inside the working chamber.

Air convection: Equipped with a high-performance motor and fan blades to provide gentle air circulation, allowing continuous air renewal inside the chamber.

Door sealing and insulation: Nano-material door sealing strips and thermal insulation materials enhance the overall performance of the equipment.

Outer casing: Manufactured from cold-rolled steel plates with electrostatic powder coating.

Insulation material: 100 mm high-temperature-resistant rigid polyurethane foam.

Heating system: Fin-type stainless steel electric heating tube.

Heat exchange system: Uses high-efficiency SWEP refrigerant heat exchange technology.

Controller: Weinview (Taiwan) TH7010 touchscreen intelligent programmable temperature controller.