Crusher-Safety-Checklist| HVI APP

A crusher is a machine designed to reduce large rocks into smaller rocks, gravel, sand, or rock dust. Crushers are commonly used to reduce the size of materials for various purposes, including construction, recycling, and mining operations. They work by applying mechanical force to break the material into smaller pieces.

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Crusher Safety Checklist

Pre-Start Checks:

• Inspect crusher components for signs of wear, damage, or loose parts.

• Verify that all guards and safety devices are in place and functional.

• Check lubrication levels and ensure all lubrication points are adequately greased.

Startup Procedure:

• Follow manufacturer's startup procedures outlined in the operation manual.

• Allow the crusher to warm up properly before starting the crushing process.

• Monitor equipment for any abnormal vibrations or noises during startup.

Operating Parameters:

• Set operating parameters such as crusher speed, feed rate, and discharge setting according to material specifications and production requirements.

• Monitor crusher performance and adjust operating parameters as needed to optimize production efficiency.

Material Feed:

• Ensure material is fed evenly into the crusher to prevent uneven wear on crusher components.

• Avoid overloading the crusher with excessive feed material, which can cause blockages and damage to the crusher.

Crushing Chamber:

• Regularly inspect the crushing chamber for any buildup of material or blockages.

• Clear any obstructions from the crushing chamber before resuming operation.

Wear Parts:

• Monitor wear on crusher components such as jaw plates, impact bars, and cone mantles.

• Replace worn or damaged wear parts promptly to maintain optimal crushing performance.

Safety Procedures:

• Adhere to all safety procedures and protocols outlined in the operation manual.

• Ensure all personnel are trained in safe operating practices and emergency procedures.

Shutdown Procedure:

• Follow manufacturer's shutdown procedures to safely shut down the crusher.

• Allow the crusher to cool down before performing any maintenance or inspection tasks.

Maintenance and Inspection:

• Conduct regular maintenance inspections of crusher components, including lubrication, hydraulics, and electrical systems.

• Keep detailed maintenance records and schedule preventive maintenance tasks as recommended by the manufacturer.

Crusher Safety Checklist

Personal Protective Equipment (PPE):

• Wear hard hats, safety glasses, steel-toed boots, and high-visibility clothing.

• Use hearing protection when working near operating crushers.

• Wear respiratory protection when exposed to dust or airborne particles.

Lockout/Tagout Procedures:

• Follow proper lockout/tagout procedures when performing maintenance or repairs.

• Ensure all energy sources are isolated and locked out before working on the crusher.

• Verify that all stored energy has been released before beginning work.

Guarding and Safety Devices:

• Ensure all guards, safety devices, and emergency stop switches are in place and functioning properly.

• Do not remove or bypass any safety devices or guards.

• Report any missing or damaged safety devices immediately.

Safe Operating Procedures:

• Operate the crusher according to manufacturer's instructions and established safety protocols.

• Do not attempt to clear blockages or perform adjustments while the crusher is running.

• Maintain a safe distance from moving parts and pinch points.

Material Handling:

• Use proper lifting techniques when handling heavy components or materials.

• Secure loose clothing, long hair, and jewelry to prevent entanglement in moving parts.

• Be aware of potential hazards such as falling or ejected material.

Housekeeping and Maintenance:

• Keep the work area clean, organized, and free of tripping hazards.

• Clean up spills and debris promptly to prevent slips and falls.

• Perform regular maintenance and inspections to ensure the crusher is in safe working condition.

Training and Communication:

• Provide comprehensive safety training to all personnel working with or around the crusher.

• Ensure operators and maintenance staff are familiar with emergency procedures and shutdown protocols.

• Maintain open communication and encourage reporting of any safety concerns or near-misses.

Emergency Preparedness:

• Ensure emergency shut-off switches and fire suppression equipment are easily accessible.

• Post emergency contact information and evacuation routes in visible locations.

• Conduct regular emergency drills and safety meetings to reinforce safety protocols.

Hazardous Material Handling:

• Follow proper procedures for handling and disposing of hazardous materials, such as lubricants or dust suppressants.

• Use appropriate PPE and ventilation when working with hazardous substances.

• Store hazardous materials in designated areas, away from ignition sources and incompatible substances.

Contractor and Visitor Safety:

• Ensure all contractors and visitors are informed of safety protocols and PPE requirements.

• Provide safety briefings and site-specific training to contractors and visitors before allowing access to the crusher area.

• Assign a designated escort to accompany visitors and monitor their safety while on-site.

Standard Operating Procedure (SOP) for Crusher Safety

Purpose

The purpose of this Standard Operating Procedure (SOP) is to establish safety guidelines and protocols for the operation and maintenance of crushers. This SOP aims to minimize the risk of accidents, injuries, and equipment damage by ensuring that all personnel follow consistent and safe practices when working with or around crushers.

Scope

This SOP applies to all employees, contractors, and visitors involved in the operation, maintenance, or inspection of crushers. It covers all aspects of crusher safety, including personal protective equipment (PPE), lockout/tagout procedures, safe operating practices, and emergency preparedness.

Responsibilities

1. Supervisors are responsible for ensuring that all personnel are properly trained and adhere to the safety protocols outlined in this SOP.

2. Operators are responsible for following safe operating procedures, maintaining the crusher in good working condition, and reporting any safety concerns or equipment defects.

3. Maintenance personnel are responsible for conducting regular inspections, repairs, and maintenance tasks in accordance with manufacturer's recommendations and established safety protocols.

4. Contractors and visitors are responsible for complying with all safety requirements and following the instructions of designated site personnel.

Procedures

Personal Protective Equipment (PPE)

All personnel working with or around the crusher must wear the following PPE

• Hard hats

• Safety glasses

• Steel-toed boots

• High-visibility clothing

• Hearing protection must be worn when working near operating crushers.

• Respiratory protection must be used when exposed to dust or airborne particles.

Lockout/Tagout

• Before performing any maintenance or repairs on the crusher, follow proper lockout/tagout procedures:

• Isolate and lock out all energy sources.

• Verify that all stored energy has been released.

  If you are looking for more details, kindly visit low speed crusher.

• Place a tag on the locked-out device to indicate that maintenance is in progress.

• Do not attempt to operate the crusher until the lockout/tagout has been removed by authorized personnel.

Safe Operating Procedures

• Operate the crusher in accordance with manufacturer's instructions and established safety protocols.

• Conduct pre-start inspections to ensure the crusher is in safe working condition.

• Do not attempt to clear blockages or perform adjustments while the crusher is running.

• Maintain a safe distance from moving parts and pinch points.

• Stop the crusher immediately if any unusual noises, vibrations, or malfunctions are observed.

Maintenance and Inspection

• Perform regular maintenance and inspections as per the manufacturer's recommendations.

• Keep detailed records of all maintenance tasks, repairs, and inspections.

• Address any defects or safety concerns promptly and do not operate the crusher until repairs have been completed.

Housekeeping

• Keep the work area around the crusher clean, organized, and free of tripping hazards.

• Clean up spills and debris immediately to prevent slips and falls.

• Store tools, spare parts, and materials in designated areas away from the crusher.

Emergency Preparedness

• Familiarize all personnel with the location and operation of emergency shut-off switches and fire suppression equipment.

• Post emergency contact information and evacuation routes in visible locations.

• Conduct periodic emergency drills to ensure readiness and quick response in case of an incident.

Training and Communication 

• Provide comprehensive safety training to all personnel working with or around the crusher.

• Ensure that operators and maintenance staff are familiar with the crusher's operating manual, safety features, and emergency procedures.

• Maintain open lines of communication and encourage the reporting of any safety concerns, near-misses, or suggestions for improvement.

Review and Update

• This SOP shall be reviewed and updated annually or whenever there are significant changes in equipment, processes, or regulations. All personnel shall be informed of any updates and provided with refresher training as needed.

By following this Standard Operating Procedure consistently, we can maintain a safe working environment and minimize the risk of accidents and injuries associated with crusher operations.

Conclusion

Maintaining a safe working environment around crushers is crucial for preventing accidents and injuries. By following the Crusher Safety Checklist and Standard Operating Procedure, implementing regular training, and using the HVI APP to streamline safety management, you can significantly reduce risks and foster a strong safety culture. Download the free checklist and sign up for the HVI APP to start your journey towards a safer working environment today. 

Top 10 FAQs on the Crusher Safety Checklist

1. Q: How often should I conduct safety training for crusher operators and maintenance staff?

A: It is recommended to provide comprehensive safety training to all personnel working with or around crushers upon initial hiring and annually thereafter. Additional training should be conducted whenever there are significant changes in equipment, processes, or regulations.

2. Q: What personal protective equipment (PPE) is required when working near crushers?

A: The minimum PPE required for working near crushers includes hard hats, safety glasses, steel-toed boots, and high-visibility clothing. Hearing protection should be worn when working near operating crushers, and respiratory protection should be used when exposed to dust or airborne particles.

3. Q: How do I ensure proper lockout/tagout procedures are followed during maintenance?

A: Develop a comprehensive lockout/tagout program that includes training for all personnel, clearly defined procedures, and regular audits to ensure compliance. Assign specific responsibilities and ensure that all energy sources are isolated, locked out, and tagged before any maintenance or repair work begins.

4. Q: What should I do if I notice unusual noises or vibrations coming from the crusher?

A: Stop the crusher immediately and report the issue to your supervisor. Do not attempt to diagnose or repair the problem yourself. The crusher should be thoroughly inspected by qualified maintenance personnel before resuming operation.

5. Q: How can I prevent blockages and jams in the crusher?

A: To prevent blockages and jams, ensure that the feed material is properly sized and free of contaminants. Avoid overloading the crusher and monitor the feed rate to maintain optimal performance. Conduct regular inspections of the crushing chamber and clear any buildup of material before it causes a blockage.

6. Q: What are the most common hazards associated with crusher operations?

A: The most common hazards associated with crusher operations include entanglement in moving parts, being struck by falling or ejected material, exposure to dust and noise, and slips, trips, and falls due to poor housekeeping.

7. Q: How often should I perform maintenance and inspections on the crusher?

A: The frequency of maintenance and inspections should be based on the manufacturer's recommendations and the specific operating conditions of your crusher. Generally, daily pre-start inspections, regular lubrication, and wear part inspections should be conducted, with more comprehensive maintenance performed at scheduled intervals.

8. Q: What should I do if I identify a safety hazard or concern during crusher operation?

A: If you identify a safety hazard or concern, stop the crusher immediately and report the issue to your supervisor. Do not attempt to address the problem yourself unless you are properly trained and authorized to do so. Work with your supervisor and safety team to develop and implement an appropriate corrective action plan.

9. Q: How can I ensure that contractors and visitors adhere to crusher safety protocols?

A: Develop a comprehensive contractor and visitor safety program that includes site-specific orientation, safety training, and PPE requirements. Assign a designated escort to accompany visitors and monitor their safety while on-site. Ensure that all contractors and visitors sign a safety acknowledgment form before accessing the crusher area.

10. Q: What emergency preparedness measures should be in place for crusher operations?

A: Develop an emergency action plan that includes clear evacuation routes, designated assembly points, and procedures for reporting emergencies. Ensure that all personnel are trained on the emergency action plan and participate in regular drills. Maintain easily accessible emergency shut-off switches, fire suppression equipment, and first-aid kits in the crusher area.

By addressing these common questions and concerns, you can help reinforce the importance of crusher safety and ensure that your team is well-prepared to handle any challenges that may arise.

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&#; How many people have actually built the shredder?

You will need to setup a real poll if you want to get an answer, surveymonkey or google forms should do the job.

&#; Can you please share how it works for you? we need benchmarks (does it get stuck? does it chew everything or not? is it slow? what motor are you using? problems you had with assembling the shredder body? etc)

I have not tested my shredder yet because I&#;m still stuck with the assembly process. The laser-cut parts didn&#;t turn out as I expected.
I saw both of your videos and noticed that the plastic is not going around the shredder blades, so I&#;m assuming the shredder is accumulating all the shredded plastic between the blades and the grill until there&#;s no more room for more plastic and it gets clogged. Your motor looks powerful enough so I don&#;t think it&#;s a lack of torque. Have you tried removing the bottom grill and testing the shredder for a while? The grill might be too close to the blades, causing the shredder to get clogged.

&#; Q: Anyone know a way to measure the exact KW and Nm output of the motor?

If you dont have a Newton-Meter or Torque-Meter, you will have to trust on the specifications of your motor and gearbox.

&#; is it the shredder that is not well assembled?
I am currently experiencing all the problems you described. I sent the drawings to a laser cutting company, and the parts they sent me looked awful, not even close to Dave Hakkens&#;s shredder pieces. I assume this is because he cut his parts with a waterjet machine which makes cuts much cleaner than a laser cutter. I cleaned the parts and the hex-holes of my blades are 1mm bigger than the Hex shaft on every side of the hexagon.

&#; Q: can the parts wiggle (move) a bit or they must be perfectly stiff?

I believe that it should not be a big deal if the blades wiggle a little in the same orientation as the shaft rotation. However, if they move sidewise, the blades may hit the shredding fixed knifes and break your machine.

&#; Q: what should the laser-cut parts look like? can we cleanup the rounded parts?
Before cleaning
After cleaning with an angle grinder

&#; is it an alignment problem between motor and shaft of the shredder?

Now that you mention it, it is very likely that this is your problem. Adding rubber underneat the motor is not a good idea, the motor should be fixed rock-solid to the frame. When your shredder is trying to shred hard plastic, the torque increases. The rubber allows the motor to have some movement, which causes the motor and the shredder to lose alignment and locks the rotation.

&#; Q: is it normal that the shaft and motor wiggle a bit when activated (and not screwed to the table), or is that a sign that there is something wrong?

No, it is not normal. The only visible movement when the machine is turned on, should be the Hex shaft spinning smoothly. Any &#;wiggling&#; indicates an alignment problem or bend shaft. Make sure that your Hex Shaft and the Motor Shaft are perfectly flat. Turning the machine ON when it was not fully aligned and fixed to the frame might have twisted/bent the hex bar or the motor&#;s shaft.

&#; Q: @paulfreed what is that black thing you have between your motor and the shaft of the shredder? is that a silent block of sorts? any suggestions?

I am not paulfreed but I can answer this. That &#;black thing&#; is an &#;Oldham Coupling&#;. The one you have is a fixed coupling but there are several other coupling options. For instance, I decided to use &#;Jaw Type Couplings&#; like this and this

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