Leather Low Temperature Bending Strength Tester（G6078-B）
The Leather Low Temperature Bending Strength Tester is designed to evaluate the cold and folding resistance of shoes and leather materials. It determines how well raw materials or finished products can withstand low-temperature environments, simulating performance in cold regions. The instrument can be fitted with various folding devices to accommodate different testing needs.
Application
This tester is suitable for:
Testing the bending and folding resistance of leather, synthetic leather, and similar materials in low-temperature conditions.
Quality control of shoe uppers, soles, and finished footwear.
Material performance evaluation in R&D laboratories for cold-weather product development.
Verification of leather and footwear durability for export to cold climate regions.
Comparative analysis of different leather treatments, coatings, and finishes.
Standards
The instrument complies with multiple international and national standards:
(1) GB/T 20991-2007 — Determination of Low Temperature Flexing of Leather
(2) BS 3144 — Standard for Cold Flex Testing of Leather
(3) JIS-K 6545 — Japanese Industrial Standard for Cold Resistance of Leather
(4) SATRA TM55 — Standard Test Method for Leather Flexing
(5) GB/T 3903.41-2019 — Leather Physical and Mechanical Test Methods
(6) ISO 32100 — General Requirements for Leather Testing
(7) ISO 5402-1 — Determination of Flexing Endurance of Leather
Parameters
| Parameter | Specification |
|---|---|
| System | Balanced thermostat with humidity control |
| Temperature Range | -20°C to +150°C |
| Temperature Fluctuation | ≤ ±0.5°C |
| Temperature Uniformity | ≤ 2°C |
| Temperature Accuracy | ±0.2°C |
| Heating Time | Room temp → +85°C: ~30 min (no load) |
| Cooling Time | Room temp → -40°C: ~50 min (no load) |
| Window | 320 × 420 × 40 mm, 3-layer vacuum tempered glass |
| Test Piece Size | 70 × 45 mm |
| Bending Angle | 22.5° |
| Number of Test Pieces | 8 |
| Bending Speed | 0–100 ± 3 cpm, adjustable |
| Door Hinge | Imported SUS #304 hinge |
| Inner Box Dimensions | 500 × 600 × 500 mm |
| Outer Box Volume | 1000 × 1050 × 1520 mm |
| Packaging Dimensions | 1150 × 1150 × 1600 mm |
| Power Supply | AC 220V |
| Machine Weight | 310 kg |
| Heating Rate | 3–5°C/min (average) |
| Cooling Rate | 0.7–1°C/min (average) |
| LED Internal Light | Yes |
| Wire Lead Hole | φ50 mm, with rubber plug |
Features
High-quality DuPont powder surface treatment with electrostatic spray and 200°C curing for long-lasting colorfastness.
Inner chamber constructed of SUS304 stainless steel with semi-circular corners for easy cleaning.
Rational air duct and circulation system ensure excellent temperature uniformity.
High-performance motor and fan blades provide effective convection and internal air recirculation.
Nanomaterial door seals and 100 mm rigid PU insulation enhance thermal efficiency.
Cold-rolled steel casing with electrostatically sprayed plastic coating.
Fin-type heat sink with tubular stainless steel heater for efficient heat transfer.
SWEP ultra-high-efficiency heat exchanger for rapid heat/cold exchange.
Taiwan Weilun TH7010 touch-sensitive programmable temperature controller.
Accessories
(1) Main machine unit (1)
(2) Die cutter (1)
(3) Instruction manual (1)
(4) Delivery note (1)
(5) Packing list (1)
Test Procedures
(1) Prepare leather or shoe material samples according to the standard test dimensions.
(2) Mount test pieces in the folding device within the chamber.
(3) Set the desired bending angle, speed, and number of cycles on the controller.
(4) Program temperature parameters for low-temperature exposure.
(5) Start the test and monitor temperature uniformity and bending cycles.
(6) Upon completion, remove samples and evaluate for cracks, folds, or material failure.
(7) Record and store test data; generate reports if required.
Maintenance Information
Regularly clean the inner stainless steel chamber to remove debris.
Inspect door seals, hinges, and insulation for wear and damage.
Ensure fans and motors are free of obstructions and lubricated if required.
Calibrate the temperature controller periodically.
Check electrical connections and power supply integrity.
FAQ
1. What is this product?
It is a low-temperature leather bending tester used to measure the cold and folding resistance of leather and shoe materials.
2. What is this product used for?
It evaluates how leather or finished footwear performs under low-temperature conditions, simulating cold-region usage.
3. Why is this product important?
It ensures the durability and safety of materials in cold climates, preventing product failure during usage.
4. What industries is this product suitable for?
Footwear manufacturing, leather processing, material R&D laboratories, and quality inspection facilities.
5. What types of this product are available?
Various folding devices can be installed to accommodate different sample types, sizes, and bending requirements for shoes, leather, and synthetic materials.
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