WENK Pneumatic SK Series Pneumatic Tapping Hammer
Product Detail
| Model | SK30 | SK40 | SK60 | SK80 |
| Operating Pressure | 0.3Mpa~0.7Mpa | 0.4Mpa~0.7Mpa | ||
| Air Consumption | 0.05L~0.13L | 0.15L~0.37L | 0.33L~0.77L | 0.6L-1.4L |
| Impact Energy | 5.5N.m~13.1N.m | 9.2N.m~22.3N.m | 20.6N.m~49N.m | 45.1N.m~109N.m |
| Media Temperature | -5℃~60℃ | |||
| Rated Frequency | 1~60 times/min. | |||
| Material | Aluminum Alloy | |||
SK Series Pneumatic Hammer User Manual
Product Introduction
The SK Series Pneumatic Hammer from WENK Pneumatic is an advanced impact-type flow aid device designed to prevent material blockages and bridging in industrial hoppers, silos, and pipelines. Utilizing innovative magnetic piston technology, this compact and powerful device delivers precise, adjustable impacts to dislodge accumulated materials without damaging equipment surfaces.
Featuring a durable aluminum alloy construction, the SK Series Pneumatic Hammer offers high impact force with minimal air consumption, ensuring energy efficiency and cost savings. Its unique design incorporates a magnetic piston that generates strong impact force through magnetic reaction, providing reliable performance even in harsh industrial environments. The hammer operates on a single-action principle, delivering one powerful impact per air signal, with adjustable impact force controlled by air pressure.
Ideal for use in chemical, pharmaceutical, food processing, cement, and mining industries, the SK Series Pneumatic Hammer effectively resolves material flow issues while maintaining process efficiency and product integrity. With its simple installation, low maintenance requirements, and compatibility with various control systems, this pneumatic hammer provides a versatile solution for optimizing material handling operations.
Working Principle
The SK Series Pneumatic Hammer operates based on magnetic piston technology, as follows:
Initial State: Without compressed air supply, the magnetic piston is tightly attached to the base plate by strong magnetic force.
Impact Process: When the 3-way solenoid valve is energized, compressed air flows into the pneumatic hammer body, increasing internal pressure. When the pressure exceeds the magnetic force, the magnetic piston rapidly detaches from the base plate, generating a strong reaction force due to the magnetic repulsion. The high-speed descending magnetic piston strikes the base plate, transmitting impact force to the hopper and effectively dislodging accumulated materials.
Reset Process: When the solenoid valve is de-energized, compressed air inside the hammer is exhausted through the solenoid valve. The return spring pushes the magnetic piston upward, allowing it to reattach to the base plate by magnetic force, returning to the initial state and preparing for the next impact.
Installation Steps
-
Pre-installation Preparation
- Carefully read this user manual to confirm the product meets your requirements
- Inspect the product for any damage incurred during transportation
- Prepare necessary installation accessories such as bolts, nuts, and washers
- Verify that the installation structure can withstand the impact force of the hammer
-
Installation Location Selection
- For square pyramid-shaped hoppers, install one hammer on each of two opposite sides to improve vibration transmission
- For conical hoppers, install one hammer at an appropriate height on the side wall
- Install approximately 300-500mm above areas where material accumulation or blockage commonly occurs
- Avoid installing on weak parts of hoppers or pipelines, such as near welds, flanges, or support structures
-
Mounting Bracket Preparation
- If the installation surface is thin, weld a reinforcing plate to prevent cracking from impacts
- Ensure no gaps between the reinforcing plate and hopper, and leave a 10mm vent hole
- Using channel steel mounting brackets can enhance the hammer's vibration force and improve material flow
- Longer channel steel should be welded with skip welding, leaving 10mm unwelded at the end to prevent hopper wall cracking
-
Hammer Installation
- Secure the hammer to the designated position using flanges or brackets
- When fixing the body to the flange with bolts, use spring washers and tighten to the specified torque
- After installation, attach anti-fall cables to prevent the hammer from falling due to impact forces
- Ensure the hammer is perpendicular to the installation surface for optimal impact effectiveness
-
Piping Connection
- Install an air filter before piping to prevent impurities or dust from entering the hammer
- Use appropriate diameter air hoses to connect the hammer's inlet port and solenoid valve
- Ensure the piping system is well-sealed and free from leaks
- For relay piping of multiple hammers, connect the relay port of the first hammer to the inlet port of the next using air hoses
-
Electrical Connection
- Connect the solenoid valve to the control box or PLC system
- Ensure electrical connections comply with relevant safety standards
- Test the solenoid valve operation to ensure proper functioning
Pre-installation Preparation
- Carefully read this user manual to confirm the product meets your requirements
- Inspect the product for any damage incurred during transportation
- Prepare necessary installation accessories such as bolts, nuts, and washers
- Verify that the installation structure can withstand the impact force of the hammer
Installation Location Selection
- For square pyramid-shaped hoppers, install one hammer on each of two opposite sides to improve vibration transmission
- For conical hoppers, install one hammer at an appropriate height on the side wall
- Install approximately 300-500mm above areas where material accumulation or blockage commonly occurs
- Avoid installing on weak parts of hoppers or pipelines, such as near welds, flanges, or support structures
Mounting Bracket Preparation
- If the installation surface is thin, weld a reinforcing plate to prevent cracking from impacts
- Ensure no gaps between the reinforcing plate and hopper, and leave a 10mm vent hole
- Using channel steel mounting brackets can enhance the hammer's vibration force and improve material flow
- Longer channel steel should be welded with skip welding, leaving 10mm unwelded at the end to prevent hopper wall cracking
Hammer Installation
- Secure the hammer to the designated position using flanges or brackets
- When fixing the body to the flange with bolts, use spring washers and tighten to the specified torque
- After installation, attach anti-fall cables to prevent the hammer from falling due to impact forces
- Ensure the hammer is perpendicular to the installation surface for optimal impact effectiveness
Piping Connection
- Install an air filter before piping to prevent impurities or dust from entering the hammer
- Use appropriate diameter air hoses to connect the hammer's inlet port and solenoid valve
- Ensure the piping system is well-sealed and free from leaks
- For relay piping of multiple hammers, connect the relay port of the first hammer to the inlet port of the next using air hoses
Electrical Connection
- Connect the solenoid valve to the control box or PLC system
- Ensure electrical connections comply with relevant safety standards
- Test the solenoid valve operation to ensure proper functioning
Operation Guide
-
Initial Adjustment
- Slowly activate the air supply and adjust pressure to the required level (typically 0.3-0.7MPa)
- Manually trigger the solenoid valve to test hammer operation
- Observe impact effectiveness and adjust air pressure if necessary to change impact force
- Ensure the hammer's reset function operates correctly
-
Control Method Selection
- Single-action control: Control single impacts through solenoid valve on/off
- Automatic control: Use a control box or PLC system to set impact intervals and counts
- Remote control: Integrate the hammer into a central control system for remote operation
-
Parameter Setting
- Impact interval: Set according to material characteristics and blockage conditions, typically 1-99 seconds
- Impact duration: Usually set to 0.1 seconds for most applications
- Impact count: Can be set for single or multiple consecutive impacts
- Relay control: When multiple hammers operate in series, set impact intervals to more than 1 second
-
Normal Operation
- Regularly check the hammer's operating status
- Monitor material flow and adjust impact frequency or force if necessary
- Record hammer operation data and establish maintenance records
-
Operation Precautions
- Do not exceed the hammer's rated working pressure
- Avoid prolonged operation of the hammer in empty hoppers
- Use explosion-proof models in flammable and explosive environments
- Immediately stop use and inspect if abnormal noise or vibration is detected
Initial Adjustment
- Slowly activate the air supply and adjust pressure to the required level (typically 0.3-0.7MPa)
- Manually trigger the solenoid valve to test hammer operation
- Observe impact effectiveness and adjust air pressure if necessary to change impact force
- Ensure the hammer's reset function operates correctly
Control Method Selection
- Single-action control: Control single impacts through solenoid valve on/off
- Automatic control: Use a control box or PLC system to set impact intervals and counts
- Remote control: Integrate the hammer into a central control system for remote operation
Parameter Setting
- Impact interval: Set according to material characteristics and blockage conditions, typically 1-99 seconds
- Impact duration: Usually set to 0.1 seconds for most applications
- Impact count: Can be set for single or multiple consecutive impacts
- Relay control: When multiple hammers operate in series, set impact intervals to more than 1 second
Normal Operation
- Regularly check the hammer's operating status
- Monitor material flow and adjust impact frequency or force if necessary
- Record hammer operation data and establish maintenance records
Operation Precautions
- Do not exceed the hammer's rated working pressure
- Avoid prolonged operation of the hammer in empty hoppers
- Use explosion-proof models in flammable and explosive environments
- Immediately stop use and inspect if abnormal noise or vibration is detected
Maintenance
-
Daily Inspection
- Check if the hammer is securely installed and free from looseness
- Inspect air connections for proper sealing and no leaks
- Observe knocker operation for normal functioning and no abnormal noise
- Check the control box and solenoid valve working status
-
Regular Maintenance
- Weekly: Clean the hammer surface and remove dust and dirt
- Monthly: Check bolt tightness and retighten if necessary
- Quarterly: Inspect the air filter and clean or replace the filter element
- Semi-annually: Disassemble the knocker and inspect internal parts for wear
-
Lubrication
- The SK Series Pneumatic Hammer generally requires no additional lubrication
- If operation becomes rough after long-term use, add a small amount of pneumatic component-specific lubricating oil to the air inlet
-
Parts Replacement
- Replace parts promptly when the following conditions are observed:
- Aging, deformation, or damage of seals
- Severe wear on piston surfaces
- Loss of spring elasticity or spring breakage
- Severe dents or damage on the base plate surface
-
Long-term Storage
- Thoroughly clean the knocker internally and externally before long-term storage
- Apply rust inhibitor to prevent metal parts from rusting
- Store the knocker in a dry, well-ventilated environment
- Regularly check storage conditions to prevent moisture damage
Daily Inspection
- Check if the hammer is securely installed and free from looseness
- Inspect air connections for proper sealing and no leaks
- Observe knocker operation for normal functioning and no abnormal noise
- Check the control box and solenoid valve working status
Regular Maintenance
- Weekly: Clean the hammer surface and remove dust and dirt
- Monthly: Check bolt tightness and retighten if necessary
- Quarterly: Inspect the air filter and clean or replace the filter element
- Semi-annually: Disassemble the knocker and inspect internal parts for wear
Lubrication
- The SK Series Pneumatic Hammer generally requires no additional lubrication
- If operation becomes rough after long-term use, add a small amount of pneumatic component-specific lubricating oil to the air inlet
Parts Replacement
- Replace parts promptly when the following conditions are observed:
- Aging, deformation, or damage of seals
- Severe wear on piston surfaces
- Loss of spring elasticity or spring breakage
- Severe dents or damage on the base plate surface
Long-term Storage
- Thoroughly clean the knocker internally and externally before long-term storage
- Apply rust inhibitor to prevent metal parts from rusting
- Store the knocker in a dry, well-ventilated environment
- Regularly check storage conditions to prevent moisture damage
Troubleshooting
-
Hammer Not Operating
- Possible Causes
- Insufficient air supply pressure
- Blocked or leaking air lines
- Malfunctioning solenoid valve
- Jammed piston
- Control circuit failure
- Solutions
- Check air supply pressure and adjust to rated range
- Inspect air connections, clear blockages or repair leaks
- Check solenoid valve and replace if necessary
- Disassemble the hammer, clean the piston or replace damaged parts
- Inspect control circuit and repair faults
-
Reduced Impact Force
- Possible Causes
- Decreased air supply pressure
- Severe wear on piston or base plate
- Damaged internal seals
- Clogged air filter
- Solutions
- Increase air supply pressure to specified value
- Replace worn piston or base plate
- Replace damaged seals
- Clean or replace air filter element
-
Poor Hammer Reset
- Possible Causes
- Fatigued or broken return spring
- Foreign objects between piston and cylinder
- Weakened magnetism
- Excessively high air pressure
- Solutions
- Replace the return spring
- Disassemble and clean internal parts
- Inspect magnetic piston and replace if necessary
- Reduce air pressure to specified range
-
Abnormal Noise
- Possible Causes
- Loose installation
- Loose or worn parts
- Excessively high air pressure
- Damaged internal parts
- Solutions
- Retighten installation bolts
- Check and tighten loose parts, replace worn components
- Reduce air pressure to specified value
- Disassemble and inspect, replace damaged parts
Hammer Not Operating
- Possible Causes
- Insufficient air supply pressure
- Blocked or leaking air lines
- Malfunctioning solenoid valve
- Jammed piston
- Control circuit failure
- Solutions
- Check air supply pressure and adjust to rated range
- Inspect air connections, clear blockages or repair leaks
- Check solenoid valve and replace if necessary
- Disassemble the hammer, clean the piston or replace damaged parts
- Inspect control circuit and repair faults
Reduced Impact Force
- Possible Causes
- Decreased air supply pressure
- Severe wear on piston or base plate
- Damaged internal seals
- Clogged air filter
- Solutions
- Increase air supply pressure to specified value
- Replace worn piston or base plate
- Replace damaged seals
- Clean or replace air filter element
Poor Hammer Reset
- Possible Causes
- Fatigued or broken return spring
- Foreign objects between piston and cylinder
- Weakened magnetism
- Excessively high air pressure
- Solutions
- Replace the return spring
- Disassemble and clean internal parts
- Inspect magnetic piston and replace if necessary
- Reduce air pressure to specified range
Abnormal Noise
- Possible Causes
- Loose installation
- Loose or worn parts
- Excessively high air pressure
- Damaged internal parts
- Solutions
- Retighten installation bolts
- Check and tighten loose parts, replace worn components
- Reduce air pressure to specified value
- Disassemble and inspect, replace damaged parts
