V9/V9A rapid freeze-thaw machine for concrete durability tests, 300+ cycles, 2.5–4 h per cycle, microcomputer control.
Overview
The freeze-thaw cycle period is 2.54 hours, with thawing time 1/4 of the cycle; specimen center temperature is -182 at the end of freezing and 52 at the end of thawing. Cooling takes 1.52.5h, heating 1.01.5h; the center-surface temperature difference is <28; standard cycles are 300+. It uses an imported compressor with low noise, power saving, compact size and microcomputer control, and holds a national patent.
Applications
• Concrete cube and cylinder compressive strength testing
• Reinforced concrete structural component assessment
• Precast concrete factory quality control
• Construction site and laboratory concrete acceptance testing
Features
• Robust construction suitable for both laboratory and field use
• Compliant with relevant Chinese and international testing standards
• Complete with calibration certificate and operation manual
Technical Specifications
| Item | Specification |
| Models | KDR-V9/V9A |
| Power | AC380V/20A 3-phase 4-wire |
| Total power | 4.2kW |
| Heating/cooling power | 4kW |
| Specimen capacity | 9 groups + 1 center (28 total) |
| Temperature range | -25–25℃ (user-set) |
| Temperature uniformity | <2℃ between points |
| Accuracy | ±0.5℃; resolution 0.06℃ |
| Specimen size | 100×100×400mm |
| Inner/outer unit | 1450×800×855 / 1050×1000×910mm |
Standards
GB/T 50081, ASTM C39, JGJ/T 384
Standard Delivery
• Main instrument unit
• Power cable
• Operation manual
• Spare parts kit
FAQ
Q1: What standards does the V9/V9A Concrete Rapid Freeze-Thaw Testing Machine comply with?
A1: The V9/V9A Concrete Rapid Freeze-Thaw Testing Machine is designed and manufactured in accordance with relevant Chinese national (GB) and transport industry (JTG) standards, as well as applicable ASTM and AASHTO international standards. A calibration certificate traceable to national standards is provided with each unit.
Q2: How often should the V9/V9A Concrete Rapid Freeze-Thaw Testing Machine be calibrated?
A2: We recommend annual calibration by authorized technicians or by iRoad after-sales service center. For high-frequency laboratory use, semi-annual calibration is advised. The instrument is supplied with a factory calibration certificate.
Q3: What is the lead time and do you provide training?
A3: Standard units are usually shipped within 7-15 working days. Custom configurations may require 20-30 days. iRoad provides on-site installation, commissioning and operator training for major equipment; remote video guidance is available for standard laboratory instruments.
Overview
The freeze-thaw cycle period is 2.54 hours, with thawing time 1/4 of the cycle; specimen center temperature is -182 at the end of freezing and 52 at the end of thawing. Cooling takes 1.52.5h, heating 1.01.5h; the center-surface temperature difference is <28; standard cycles are 300+. It uses an imported compressor with low noise, power saving, compact size and microcomputer control, and holds a national patent.
Applications
• Concrete cube and cylinder compressive strength testing
• Reinforced concrete structural component assessment
• Precast concrete factory quality control
• Construction site and laboratory concrete acceptance testing
Features
• Robust construction suitable for both laboratory and field use
• Compliant with relevant Chinese and international testing standards
• Complete with calibration certificate and operation manual
Technical Specifications
| Item | Specification |
| Models | KDR-V9/V9A |
| Power | AC380V/20A 3-phase 4-wire |
| Total power | 4.2kW |
| Heating/cooling power | 4kW |
| Specimen capacity | 9 groups + 1 center (28 total) |
| Temperature range | -25–25℃ (user-set) |
| Temperature uniformity | <2℃ between points |
| Accuracy | ±0.5℃; resolution 0.06℃ |
| Specimen size | 100×100×400mm |
| Inner/outer unit | 1450×800×855 / 1050×1000×910mm |
Standards
GB/T 50081, ASTM C39, JGJ/T 384
Standard Delivery
• Main instrument unit
• Power cable
• Operation manual
• Spare parts kit
FAQ
Q1: What standards does the V9/V9A Concrete Rapid Freeze-Thaw Testing Machine comply with?
A1: The V9/V9A Concrete Rapid Freeze-Thaw Testing Machine is designed and manufactured in accordance with relevant Chinese national (GB) and transport industry (JTG) standards, as well as applicable ASTM and AASHTO international standards. A calibration certificate traceable to national standards is provided with each unit.
Q2: How often should the V9/V9A Concrete Rapid Freeze-Thaw Testing Machine be calibrated?
A2: We recommend annual calibration by authorized technicians or by iRoad after-sales service center. For high-frequency laboratory use, semi-annual calibration is advised. The instrument is supplied with a factory calibration certificate.
Q3: What is the lead time and do you provide training?
A3: Standard units are usually shipped within 7-15 working days. Custom configurations may require 20-30 days. iRoad provides on-site installation, commissioning and operator training for major equipment; remote video guidance is available for standard laboratory instruments.
