Negative pressure air-jet sieve for determining the fineness (sieve residue) of cement and similar powders. Request a quote.
Overview
It is mainly used to determine the residue of various cements passing through a sieve under a certain negative pressure, so as to determine the cement particle fineness. It complies with GB 1345 and JC/T 728 standards.
Applications
• Fine and coarse aggregate gradation analysis
• Concrete and asphalt aggregate quality control
• Aggregate crushing value and abrasion resistance testing
• Ready-mix concrete plant and aggregate quarry laboratories
Features
• Electro-hydraulic loading system with stable test force application
• 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 |
| Working negative pressure | -6000～-4000Pa |
| Test sieve size | 0.08mm |
| Sieve time | 120s |
| Air jet nozzle speed | 30r/min |
| Motor power | 220V, 50Hz, 1000W |
| Net weight | 150 type 20kg; 150A type 35kg |
Standards
GB/T 14684, ASTM C136, JTG E42
Standard Delivery
• Main instrument unit
• Power cable
• Operation manual
• Spare parts kit
FAQ
Q1: What standards does the Cement Fineness Negative Pressure Sieve comply with?
A1: The Cement Fineness Negative Pressure Sieve 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 Cement Fineness Negative Pressure Sieve 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
It is mainly used to determine the residue of various cements passing through a sieve under a certain negative pressure, so as to determine the cement particle fineness. It complies with GB 1345 and JC/T 728 standards.
Applications
• Fine and coarse aggregate gradation analysis
• Concrete and asphalt aggregate quality control
• Aggregate crushing value and abrasion resistance testing
• Ready-mix concrete plant and aggregate quarry laboratories
Features
• Electro-hydraulic loading system with stable test force application
• 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 |
| Working negative pressure | -6000～-4000Pa |
| Test sieve size | 0.08mm |
| Sieve time | 120s |
| Air jet nozzle speed | 30r/min |
| Motor power | 220V, 50Hz, 1000W |
| Net weight | 150 type 20kg; 150A type 35kg |
Standards
GB/T 14684, ASTM C136, JTG E42
Standard Delivery
• Main instrument unit
• Power cable
• Operation manual
• Spare parts kit
FAQ
Q1: What standards does the Cement Fineness Negative Pressure Sieve comply with?
A1: The Cement Fineness Negative Pressure Sieve 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 Cement Fineness Negative Pressure Sieve 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.
