About Cabling Installation & Maintenance

Our mission: Bringing practical business and technical intelligence to today's structured cabling professionals

For more than 30 years, Cabling Installation & Maintenance has provided useful, practical information to professionals responsible for the specification, design, installation and management of structured cabling systems serving enterprise, data center and other environments. These professionals are challenged to stay informed of constantly evolving standards, system-design and installation approaches, product and system capabilities, technologies, as well as applications that rely on high-performance structured cabling systems. Our editors synthesize these complex issues into multiple information products. This portfolio of information products provides concrete detail that improves the efficiency of day-to-day operations, and equips cabling professionals with the perspective that enables strategic planning for networks’ optimum long-term performance.

Throughout our annual magazine, weekly email newsletters and 24/7/365 website, Cabling Installation & Maintenance digs into the essential topics our audience focuses on.

  • Design, Installation and Testing: We explain the bottom-up design of cabling systems, from case histories of actual projects to solutions for specific problems or aspects of the design process. We also look at specific installations using a case-history approach to highlight challenging problems, solutions and unique features. Additionally, we examine evolving test-and-measurement technologies and techniques designed to address the standards-governed and practical-use performance requirements of cabling systems.
  • Technology: We evaluate product innovations and technology trends as they impact a particular product class through interviews with manufacturers, installers and users, as well as contributed articles from subject-matter experts.
  • Data Center: Cabling Installation & Maintenance takes an in-depth look at design and installation workmanship issues as well as the unique technology being deployed specifically for data centers.
  • Physical Security: Focusing on the areas in which security and IT—and the infrastructure for both—interlock and overlap, we pay specific attention to Internet Protocol’s influence over the development of security applications.
  • Standards: Tracking the activities of North American and international standards-making organizations, we provide updates on specifications that are in-progress, looking forward to how they will affect cabling-system design and installation. We also produce articles explaining the practical aspects of designing and installing cabling systems in accordance with the specifications of established standards.

Cabling Installation & Maintenance is published by Endeavor Business Media, a division of EndeavorB2B.

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How to properly operate and maintain green sand molding machines?

I. Workflow of Green Sand Molding Machine

Raw Material Processing

New sand requires drying treatment (moisture controlled below 2%)

Used sand needs crushing, magnetic separation, and cooling (to about 25°C)

Harder stone materials are preferred, typically initially crushed using jaw crushers or cone crushers

Sand Mixing

Mixing equipment includes wheel-type, pendulum-type, blade-type, or rotor-type mixers

Mixing process points:

Add sand and water first, then bentonite (can reduce mixing time by 1/3-1/4)

Control water addition to 75% of total required water for wet mixing

Add supplemental water until compactness or moisture content meets standards

Mold Preparation

Fill prepared sand into molds

Mechanically compact to form molds (can be manual or machine molding)

Machine molding is suitable for mass production, improving efficiency and casting precision

Pre-Pouring Treatment‌

Mold assembly: Combine sand molds and cores into complete molds

No drying required before pouring (characteristic of green sand)

Post-Processing

Cool castings to appropriate temperature after pouring

Shakeout: Remove sand and core sand

Cleaning: Remove gates, risers, surface sand, and burrs

II. Operation and Maintenance Guide

1. Standard Operating Procedures

Pre-startup Checks

Verify that the vortex chamber observation door is securely closed

Confirm impeller rotation direction should be counterclockwise

Check all instrument readings and oil circuits

Run unloaded for 1-2 minutes before feeding

Shutdown Procedures

Continue operation until material is fully discharged after stopping feed

Check all safety conditions before powering off

Clean all machine parts and complete shift logs

2. Daily Maintenance

Regular Inspections

Check internal wear conditions per shift

Inspect drive belt tension for even force distribution

Verify safety devices are functional

Lubrication Maintenance

Use Mobil automotive grease, add every 400 operating hours

Clean spindle after 2000 operating hours

Replace bearings after 7200 operating hours

Wear Parts Maintenance

Rotor maintenance: Insert head into upper/lower disc holes, secure inner/outer rings with bolts

Hammer maintenance: Reverse when worn, maintain proper distance from strike plate

Plate hammer maintenance: Rotate positions regularly

3. Common Fault Handling

Symptom Possible Cause Solution
Unstable operation Severe wear of impeller parts

 

Excessive feed size

Blockage in impeller flow

Replace worn parts

 

Control feed size

Clear blockage

Abnormal noise Loose bolts, liners, or impeller Tighten all components
Bearing overheating Dust ingress

 

Bearing failure

Lack of lubrication

Clean contaminants

 

Replace bearing

Lubricate properly

Increased output size Loose belt

 

Excessive feed size

Improper impeller speed

Adjust belt tension

 

Control feed size

Regulate impeller speed

Seal damage/oil leakage Shaft sleeve rubbing

 

Seal wear

Replace seals

4. Safety Regulations

Personnel Requirements

Operators must be trained and certified

Designated operators only

Wear proper PPE (hairnets for female workers)

Operation Safety

Notify all personnel before startup

Never reach into moving parts

Stop immediately for abnormal noises

Maintenance Safety‌

Power off before troubleshooting

Use warning tags during internal repairs

Never remove safety guards or modify wiring

Environmental Safety

Keep work area clean and clear

Ensure proper ventilation and lighting

Maintain functional fire extinguishers

junengFactory

Quanzhou Juneng Machinery Co.,Ltd. is a subsidiary of Shengda Machinery Co.,Ltd. specializing in casting equipment. A high-tech R&D enterprise that has long been engaged in the development and production of casting equipment, automatic molding machines, and casting assembly lines.

If you need a Green Sand Molding Machine, you can contact us through the following contact information:

Sales Manager : zoe

E-mail : zoe@junengmachine.com

Telephone : +86 13030998585

Media Contact
Company Name: Quanzhou Juneng Machinery Co.,Ltd.
Email: Send Email
Country: China
Website: https://www.junengmachinery.com/

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