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Low Temperature Bally & ROSS Resistance Flexing Tester GT-KB05C

The GESTER Flexing Tester GT-KB05C is a high-performance 2-in-1 combo testing chamber that integrates both Bally Flexing (10 Stations for Upper Leather) and ROSS Flexing (5 Stations for Outsoles) into a single low-temperature environment down to -40°C. Engineered to satisfy comprehensive cold-resistance standards including ISO 17694, SATRA TM55, EN ISO 20344 and ASTM D1052, SATRA TM60, the GT-KB05C features a heavy-duty SUS304 stainless steel chamber, 7-inch color touch screen, and independent drive controllers. It provides an space-saving, highly efficient solution for complete footwear quality verification in sub-zero climates.
  • Brand:

    GESTER
  • Item NO.:

    GT-KB05C
  • Order(MOQ):

    1
  • Shipping Port:

    Xiamen Port
  • Lead Time:

    15 days
  • Product Detail

Low Temperature Bally & ROSS Resistance Flexing Tester | Footwear Testing Machine Suppliers

Product Introduction

Application:
Low Temperature Bally & ROSS Resistance Flexing Tester to determine the resistance of a material to cracking or other types of failure at flexing creases. The method is applicable to all flexible materials and in particular leathers, coated fabrics and textiles used in footwear uppers.

 

Feature
  • Materials of outer chamber: 2mm Double-sided color coated steel with power coated surface.
  • Materials of inner chamber: using SUS304 stainless steel, seamless welded. Beside, the outer structure of the inner chamber is reinforced with 10mm steel plates to meet the structural strength requirements of the bending test.
  • With vacuum glass observation window, more effective to observe the testing situation.
  • Temperature control: adopt 7inch color touch screen with Chinese and English version, easy to operate.
  • Low Temperature Bally & ROSS Resistance Flexing Tester Equipped with 2 sets of mechanical compressor, two-stage compression refrigeration cycle can quick cooling up to specified inner temperature in the case of various fixture groups.
  • The flexing system has separate controller with function of power off memory and automatical stop when test done.
  • All the testing fixtures are made of SUS304 stainless steel or aluminum, have a good corrosion resistance and anti-rust property.

 

Key Specification


Model

            GT-KB05C

Flexing Parameters

Types of Test Grips

ROSS flexing

Bally flexing

Number of Position

5Sets

10Sets

Flexing Speed

60cpm

100cpm

Bending Angle

90°

22.5°

Counter   

Touch Screen, 0 - 999,999.( Adjustment)

Control System

Touch Screen Programmable Microprocessor Control

Temperature Range

-40~100℃

Inside Chamber Capacity

150L

Chamber Material

SUS # 304 Stainless Steel and Painted

Power Supply

1∮AC220V 50/60HZ

Weight

About 420kg


Standards:

For Bally Flexing Resistance Test

SATRA TM 55; IULTCS/IUP 20-1;

ISO 17694 ; EN 13512 ;

EN344-1 section 5.13.1.3 and annex C;

EN ISO 20344 section 6.6.2.8;

GB/T20991 section 6.6.2.8;

AS/NZS 2210.2 section 6.6.2.8;

JIS-K6545; BS 3144 Clause 13

Equipped with A type of upper grips.

ISO 32100 ; DIN53351; ISO5402-1;

GE-24;ASTM D 6182,

EN ISO 20344-2021 section 6.6.3;

Equipped with B type of upper grips.

For ROSS Flexing Test

ASTM D1052, SATRA TM60, BS5131 : 2.1,GB 20265, ISO 5423, HG/T2411, ISO4643, 

EN ISO 20344-2021 section 8.7, 8.8.4


Accessories:

Standards Accessories

1pc

Chisel cutter (2mm)

1pc

Chisel cutter (2.5mm) for ASTM D1052

Optional Accessories

Optional

GT-KD20 Pneumatic Sample Cutting Machine

(Cutter: 70 ± 5 x 45 ± 5 mm)



Frequently Asked Questions

Q1: What is the main advantage of choosing a combined Bally & ROSS flexing tester over two separate testing machines?

A: The primary benefit of the GT-KB05C is maximum efficiency in both cost and laboratory space. Standard footwear quality testing requires evaluating both upper materials (using the Bally 22.5° flexing method) and outsoles (using the ROSS 90° bending method) under low temperatures. Instead of purchasing two standalone cold chambers, the GT-KB05C integrates both mechanical mechanisms into a single -40°C temperature chamber, saving up to 50% of laboratory floor space and reducing capital expenditure while delivering full compliance with both upper and sole standards.


Q2: Can the Bally flexing mechanism and ROSS flexing mechanism operate independently inside the chamber?

A: Yes. The GT-KB05C is engineered with dual independent drive control systems and separate multi-digit programmable counters. Lab technicians can run the 10-station Bally upper leather test and the 5-station ROSS sole test simultaneously or completely independently. Each system features auto-stop functionality upon completing preset cycles and power-off memory protection.


Q3: How do I choose between GT-KB05C and other ROSS / Cold Flexing models in the GESTER product line?

A: Selection depends on your target testing components, specimen format, and temperature requirements:

  1. Choose GT-KB05C (2-in-1 Combo): If you need to test BOTH upper leather (Bally method) AND cut sole specimen strips (ROSS method) under freezing conditions (-40°C) in a single compact footprint.
  2. Choose [GT-KB05B Cold ROSS Tester]: If your lab ONLY tests cut sole specimen strips (152X25mm ) under sub-zero temperatures.
  3. Choose [GT-KB05E Cold Whole Sole Tester]: If you need to test complete, uncut whole outsoles under sub-zero temperatures.
  4. Choose [GT-KB05A Ambient ROSS Tester] or [GT-KB05D Ambient Whole Sole Tester]: If you only require standard room-temperature testing (~23°C).


Planning or Upgrading Your Footwear Quality Testing Laboratory?

Partner directly with GESTER—your trusted OEM/ODM manufacturer for ISO/SATRA/ASTM compliant testing instruments.

[Contact Our Senior Technical Engineers for Lab Layout & Quotation]


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