JH21 Pneumatic Power Press Manual (PDF)

Introduction

Welcome to the JH21 Power Press Service Manual. This comprehensive guide is designed to assist you in the proper installation, operation, and maintenance of the JH21 power press. The manual focuses on the main performance characteristics and operational notices to ensure optimal performance and safety. Please note that the figures included are for reference purposes only, and the actual products may vary slightly.

I. Summary

Working Principle and Application

The JH21-80Ton (800kN) Open Back Fixed Bed Punch Press operates using a longitudinal crankshaft and crankshaft rod mechanism. The crankshaft rotates through a two-stage speed reduction from the motor, which drives the reciprocating motion of the slide.

The press features a closed driving system and stable operation with the use of a pneumatic clutch and brake, allowing the slide to stop at any position.

This universal press is ideal for various sheet metal processing tasks, including cutting, punching, blanking, bending, drawing, and stretching, but it is not suitable for coining. The nominal pressure of the press is 800kN, with a normal pressure stroke of 4.5mm.

Users should select the appropriate pressure force based on the pressure curve, ensuring that the working pressure and its crank angle do not exceed the indicated range to prevent damage to the press.

Working Environment and Conditions

To ensure the normal operation of the press, minimize maintenance frequency, and extend its service life, it should not be used in environments with excessive moisture, corrosive gases, liquids, or explosive gases. The air pressure must be at least 0.6 MPa, and the voltage should be 380±38V with a frequency of 50±5Hz.

II. Specification

III. Preparation before Operation

To ensure the proper functioning of the punch press, the user should follow proper procedures and consider the following factors before operating the machine.

Rated Load Capacity

The working load must be kept within the nominal pressure limit. Overloading protection mechanisms are in place to prevent damage caused by mis-punching or sheets of non-uniform thickness. It is crucial not to use the press with random overloading, as this can easily damage the machine. Therefore, it is important to calculate the working load accurately before starting any work.

Torque Capacity

The punching force varies with the position of the slide. Users should refer to the stroke pressure graph that illustrates these changes. Understanding this relationship helps in maintaining the machine’s integrity and ensuring precise operations.

Sticking

Sticking can occur if the working pressure exceeds the rated torque. Additionally, the punch press machine can become stuck if a load is applied before the clutch is engaged. This can damage the clutch. If sticking occurs during processing, the machine must be stopped immediately, and corrective measures should be taken to prevent recurrence.

Eccentric Load

As a general principle, eccentric loads should be avoided because they can cause the lower surface of the slide and bolster to become non-parallel, resulting in uneven forces on the slide gib and affecting precision. If an eccentric load cannot be avoided, it should be managed according to the allowable distance that the load center deviates from the bolster, as specified in the machine’s guidelines, to ensure precision and safety.

Single Turn-On Frequency

To ensure optimal performance and prolong the service life of the clutch and brake, it is important to adhere to the recommended single turn-on frequency listed in the main specifications of the punch press. Exceeding the recommended single turn-on frequency can cause abnormal wear and potential failure of the clutch and brake. For this press, the recommended single turn-on frequency is not more than 25 times per minute.

IV. Construction and Adjustment of Principle Units

Frame (Figure 2)

The frame of the punch press is made of high-strength steel and is welded. The slide moves back and forth within the gibs. The screw on the right side of the frame is used to adjust the clearance between the gibs and the slide. The adjustment of the knockout rod will cause the punched parts to be pushed down as the slide approaches the top dead center. However, care should be taken to prevent the stripper from touching the bottom of the slide knockout rod groove to avoid accidents. The bolster of the frame is the basis for precision measurements. It should maintain a smooth and flat surface to avoid damage from tools and cutting tools.

Driving Parts (Figure 3)

The main motor drives the flywheel through a V-belt and stores energy in the flywheel, which is then transmitted to the gear shaft via a friction clutch and brake. The gear shaft drives the large gear in the oil bath, which then drives the crankshaft to move the slide up and down.

To adjust the V-belt, first loosen the four locknuts and turn the four adjusting screws equally. Apply 2 kg of force to the center of the V-belt, which will bend to 10 mm to achieve the proper tension. Then tighten the four locknuts. The new V-belt will stabilize after being used for a few days, but further adjustments may be necessary. The V-belt should be kept in a cool and dry place and protected from light and oil.

When replacing the V-belts, first loosen the adjusting screws, remove the old belts, and un-install the clutch brackets. It is important to replace all belts with new ones. Using both new and old belts will reduce the service life of the belts due to different tensions. Old belts should not be mixed with new ones, and it is important to note that belts of the same nominal dimension may have length variations of several centimeters. Belts in the same group should be the same length.

For automatic operation, the user can attach the auto feeder to the output shaft of the frame face (the output shaft is a special order and not included in ordinary products).

Clutch and Brake (Figure 4)

This punch press is equipped with a pneumatic friction clutch and brake, which is located inside the frame. (Please refer to the clutch manual for more information.)

Slide (Figure 5)

The slide is a critical component of the press and its precision directly affects the precision of the press.

This JH21 punch press features square hexagonal long gibs that provide good precision and stability.

The connection rod and ball-head screw are components that convert rotary motion into reciprocating motion.

The lower end of the ball-head screw is in contact with the ball-seat, which houses the hydraulic overload protector.

In the event of an overload, the protector will quickly release the oil in the hydraulic die cushion, send out an electric signal, and cause the press to stop immediately, ensuring the safety of the die and the press.

Once the issue has been resolved and the slide returns to the top dead center, the hydraulic die cushion will automatically rebuild the pressure, allowing the punch press to resume operation.

Users can adjust the die height. For instructions, please refer to the relevant electrical part operations in the service manual.

There are shims in the connection rod and cap. Over time, the clearance between the crankshaft and bushings may increase.

Users can remove shims to adjust the clearance between the crankshaft and bushings. (Normal clearance: 0.08-0.13mm)

4.1 Clearance Adjustment between Slide and Gibs

The distance between the slide and gibs must be appropriate to ensure smooth and reliable operation of the slide. If necessary, follow the steps below to adjust it properly:

(1) Loosen the screws on the gibs and the set screws on the right side of the frame.

(2) Adjust the left side gibs and tighten the screw.

(3) Adjust the right side gibs, and determine whether to add or remove shims based on the clearance.

After adjustment, tighten the front screws and the set screws on the right side.

(4) The clearance between the slide and gibs should be 0.03 to 0.05mm, but the total allowable value of front and back contact surface clearance should be 0.04 to 0.08mm.

Typically, the clearance between the upper and lower ends is greater. The measurement is accurate when the depth of the thickness gauge is over 30mm.

Note: The 0.03mm gauge should be in, the 0.05mm gauge should not.

(5) After the adjustment, check the clearance of each part and adjust again if needed.

4.2 Slide Knockout Device

The knockout force is 5% of the nominal pressure.

4.2.1 Structure of Slide Knockout Equipment

(1) It is composed of the knockout rod, knockout seat, and knockout bar.

(2) The knockout bar is located above the central line of the slide, crossing the slide.

(3) When the slide rises, the knockout bar touches the knockout rod, ejecting the punched parts.

4.2.2 Operation and Adjustment of Slide Knockout Equipment

(1) Unscrew the fixing screw of the knockout rod and adjust the knockout rod to the proper position. Note that the knockout rods on the left and right sides should be at the same height.

(2) After adjustment, tighten the fixing screws.

(3) The touch of the transverse bar and slide may cause noise when using the knockout bar.

4.2.3 Notice

When changing the die, make sure to raise the knockout rod to its highest position before adjusting the height of the slide to prevent striking the knockout rod during die height adjustment.

Adjust the position of the knockout bar so that the material is pushed when the slide moves close to the top dead center.

However, do not let the knockout bar touch the bottom of the knockout slot to avoid accidents.

4.3 Counter

The counter, which is installed in the electric panel, is used to keep track of and display the cumulative number of strokes.

The counter will record a count of 1 each time the slide moves up and down.

If resetting is required, press the reset button.

The counter can be used to calculate production output.

4.3.1 Panel of Counter

4.3.2 Operating Method

(1) Turn the switch to OFF and the counter will not function.

(2) Turn the switch to ON and the counter will function.

Note:

When resetting the counter, the slide must be stopped in the top dead center. If the counter is reset while the punch press is still in operation, it may damage the counter.

Hydraulic Overload Protector

The hydraulic overload protector can automatically detect the oil pressure of the slide’s oil hydraulic cylinder. If the pressure is insufficient, it can quickly supply pressure to maintain normal operation. In case of an overload caused by mis-punching or uneven sheet thickness during the process, the protector can unload immediately to protect the accessories and die from damage. The hydraulic overload protector is comprised of a pressurized cylinder, a pressure relief valve, and an inductive switch.

5.1 Preparation before operation of Hydraulic Overload Protector

• Check the oil level and ensure that there is enough oil in the air pump. If the oil level is low, loosen the screw of the pouring port and add antioxidant pickling hydraulic oil (ISO VG-32) or other hydraulic oil with similar performance.

• Ensure that the air gauge is normal.
• If the slide stops at the top dead center, press the reset button, and the air-operated pump will start working. After about 1 minute, the oil pressure will reach the specified value and the air pump will stop.
• If the slide does not stop at the top dead center, please follow the following procedures:

① Set the operation mode to “INCH” stroke.

② Use the operation button to inch the slide to a stop at the top dead center. (Be careful of the working height of the die for safety if it has been installed)

③ Once the slide reaches the top dead center, press the reset button, and the overload protector’s air pump will start working. After about 1 minute, the pressure will reach the specified value, and the air pump will stop automatically, and the overload indicator light will turn off.

④ The punch press can now be used in single or continuous operation modes.

⑤ The preparation for operation is now complete.

(6) Air Elimination of Oil Pressure Cushion in the Hydraulic Overload Protector

If there is air in the oil pressure cushion, the function of the hydraulic overload protector may not work properly and cause the air pump to run continuously.

To eliminate the air:

① Stop the slide at the top dead center.

② For safety, turn off the main motor. Wait for the flywheel to come to a complete stop. Then, use a hexagonal spanner to loosen the screw of the oil drainage hole on the hydraulic overload protector, allowing the oil to flow out.

③ If the oil flows out in a broken or bubbly manner, it indicates the presence of air.

Once the oil stops flowing out in a broken or bubbly manner, tighten the screw of the oil drainage hole. Check for any gas leaks from the joint between the pump and end plane of the oil box and ensure that the oil pipes are not leaking.

④ Air elimination is complete.

(7) Reset of Hydraulic Overload Protector:

If the punch press overloads, the overload indicator will light.

Operate it according to step (5) of the procedure.

5.2 Maintenance of Overload Protector

(1) Check for gas leaks in the tube connecting to the safety valve on a regular basis.

(2) Clean the oil filter periodically.

(3) Regularly check the tightness of the connecting part bolts.

(4) Check the oil level in the box regularly.

(5) Check the functioning of the electromagnetic valve periodically.

5.3 Common Failures and Trouble Shooting of Hydraulic Overload Protector

V. Pneumatic System (Figure 6)

The solenoid valve is the main execution component and has a self-control function. If one valve does not work properly, the other valve will release air, causing the clutch to disengage and the slide to stop, ensuring the safety of people and the press. The air source pressure should be between 0.55 to 0.6 MPa, and it is important to adjust it to the specified value. The lubricator should maintain a certain oil level, and the gas filter and air reservoir should frequently be drained of water and contaminants.

Air Consumption of Punch Press and Compressor

JH21-80 clutch air consumption: 0.18 m3/min. It is recommended to choose a 0.3 m3/min compressor for a single press.

Notice:

(1) When adding oil to the lubricator, the air pressure in the pipeline must be released to prevent an accident.

(2) The pressure of the counterbalance cylinder and the weight of the upper die can be adjusted according to the following figure. The maximum allowable working pressure of the counterbalance cylinder is 0.8 MPa.

(3) The electric relay interlocks with the electric circuit. If the pressure is too low, the circuit will not function. The pressure relay has been adjusted prior to being shipped from the factory; it should not be adjusted randomly.

VI. Lubrication (Figure 7)

Lubrication Systems

The punch press machine employs both an intermittent automatic lubrication system and manual oil lubrication. The oil is distributed to all lubrication points via an oil-promoting distributor. Specific components such as the flywheel rolling bearing, rotating joint, and air cushion are lubricated using an oil gun.

Importance of Lubrication

Lubrication is vital for the crankshaft press as it:

• Reduces wear and tear on components
• Increases the service life of the machine
• Ensures precision in operations
• Reduces power consumption
• Lowers maintenance costs

All parts in relative motion must be lubricated, except for the friction surfaces of the friction clutch and brake.

Monitoring Lubrication

When operating the press, it is crucial to monitor the lubrication effect to avoid oil way blockages and prevent overheating and damage to the main bush, connecting rod bearing, and slide gibs. The temperature should not exceed +70°C and should not fall below -35°C. If the temperature rises, the punch press machine should be stopped immediately. Additionally, the temperature of the main motor should not exceed +60°C (measured on the motor cover).

Lubrication Maintenance Schedule

1. Gear Case Oil:
   • Replace the lubrication oil in the gear case after the first 3 months (approximately 750 hours) of use.
   • Subsequently, replace the oil every 6 months (approximately 1500 hours).
   • Clean the gear case every 6 months.
2. Flywheel Bearing and Drive Shaft Bearing:
   • These bearings are enclosed and should be filled with grease before assembly.
   • Refill the lubricating grease (3# lithium grease) every 2 months.
   • Check the grease every 6 months.
   • When filling the grease, ensure 60-70% of the space between the flywheel and the bearing is filled.
3. Counterbalance Cylinder:
   • Uses both air lubrication and oil hand gun lubrication.
   • Add 100ml of 20# oil to the ball screw and ball seat before testing after installation.
   • Fill the lubricator with 20# oil and check weekly.

Lubrication During Operation

1. Initial Start-Up:
   • Turn on the main motor and wait for 5 minutes for the lubrication pump to start working before operating the press.
2. Idle Periods:
   • If the press has been idle for 24 hours, run the main motor for 10 minutes before starting production.

Lubricating Oil Reservoir

• Check the lubricating oil reservoir daily and refill as needed.
• During the initial installation period, more oil is required, and it should be refilled promptly.

Manual Lubrication

• Ensure the power is turned off when lubricating manually.

Oil Replacement

• When replacing oil, thoroughly clean the interior of the oil reservoir and tubes.

Lubrication Chart

• Follow the lubrication directions indicated on the press to ensure proper maintenance and operation.

VII. Foundation Plan (Figure 8)

Preparation Before Construction

1. Excavation:
   • Excavate the site according to the foundation plan specifications.
2. Soil Reinforcement:
   • If the soil is soft, pile driving must be done to reinforce it. Ensure that the soil pressure is not less than 8 ton/m².
3. Rubble Placement:
   • Place rubble at the bottom of the excavation to a height between 100mm and 200mm to provide a stable base.
4. Concrete Pouring:
   • Leave holes in the base when pouring concrete to accommodate anchor bolts and other necessary installations.

Concrete Preparation and Installation

1. Concrete Preparation:
   • Prepare the concrete mix according to the foundation plan’s specifications.
2. Concrete Curing:
   • After pouring the concrete, allow it to dry and cure properly. Once cured, remove any wooden forms or sheets used during the pouring process.

Punch Press Machine Installation

1. Assembly:
   • Install the punch press machine by assembling the press machine, anchor bolts, and horizontal adjusting plate in the designated pit.
2. Horizontal Adjustment:
   • Adjust the punch press machine to ensure it is level horizontally.
3. Anchor Bolt Pit Filling:
   • Once the punch press is properly adjusted, fill the anchor bolt pits with concrete.
4. Final Curing and Repairs:
   • Allow the concrete to dry and cure. After curing, make any necessary repairs to ensure the foundation is stable and secure.

Additional Considerations

1. Footplate Preparation:
   • Customers should prepare the footplate around the punch press machine using appropriate materials to ensure stability and safety.
2. Shockproofing:
   • If shockproofing is necessary, add a layer of fine sandstone approximately 150mm wide around the foundation to absorb vibrations and reduce the impact on the surrounding structure.

VIII. Installation and Testing

Understanding the Press Structure

Before making any adjustments to the press, it is crucial to thoroughly understand its structure. This ensures proper handling and setup, minimizing the risk of errors and damage.

Installation of the Press

1. Foundation Preparation:
   • Prepare the foundation according to the foundation plan.
   • If the soil is soft, reinforce it properly with iron reinforcement.
2. Initial Placement:
   • Once the press arrives at the factory, place it in a dry area for several days.
   • Check the electromotor and transformer before starting the installation process.
3. Cleaning:
   • The punch press machine is coated with rust-preventing oil during transport. Wipe it off before installation.
   • Pay special attention to cleaning the oil from the surfaces of the gibs and friction surfaces.
4. Level Measurement:
   • Measure the levelness of the press using a precision leveler.
   • Fix the foundation bolts only when the level meets the required standard (0.3/1000 mm).
   • Ensure the bolster is fixed before measuring the levelness.
5. Bolster Installation:
   • If users opt to install the bolster themselves, ensure the interface between the bolster and working table is clean and free of debris such as paper, metal scraps, gauges, washers, and dirt.

Installation of the Motor

1. Inspection and Cleaning:
   • Unpack the package and inspect for any damaged accessories.
   • Clean the motor, belt pulley, flywheel groove, and bracket. Avoid getting any liquids on the electromotor.
   • Clean the V-belt using a cloth and not a cleaning solution.
2. Mounting the Motor:
   • Mount the motor to its joint position, but do not fully tighten the screws.
   • Support the weight of the motor with a sling before tightening the screws.
3. Alignment:
   • Align the reference line of the belt pulley groove and the flywheel groove.
   • Correctly position the motor to avoid damage to the belt groove and motor bearing.
   • Tighten the screws of the motor bracket after alignment.
4. Belt Tension:
   • Move the motor to the flywheel and ensure that the V-belt does not have excessive tension when placed in the block.
   • The belt tension should be about 10mm when pressed with the thumb.

Horizontal Adjustment

1. Bolster Levelness:
   • Ensure the screws are tightened before measuring.
   • Clean the bolster and place a precision level gauge on the front, middle, and back of the bolster.
   • Use shims to adjust the levelness of the frame.
2. Shims:
   • Ensure the shims are large enough to distribute the weight evenly on the interface.
   • Check the levelness after one month and readjust if necessary.
   • Perform checks every six months to maintain the press’s performance.

Installation of Air Pipeline

1. Connection:
   • Connect the air line to the back of the press.
   • Ensure the required air pressure is 0.6 MPa.
   • The distance from the air source to the press should be no more than 5 meters.
   • The diameter of the pipeline should not be less than 1 inch.
   • Clean the channel of dust and debris before connection.

Testing

1. Precision Check:
   • After installation, check the precision according to the certificate.
   • Adjust the precision if necessary due to transportation jostling and vibrations.
2. Initial Cleaning:
   • Clean any grease and dirt, especially from the surfaces of the gibs and friction areas.
3. Operating Procedure:
   • Select the appropriate operating procedure based on work requirements.
   • Prepare necessary tools.
4. Die Installation:
   • Use an inch stroke and gradually move the slide to the bottom dead center.
   • Ensure dies do not collide and adjust the height manually.
   • Do not start single or continuous stroke until adjustments are complete.
5. Knockout Bar Adjustment:
   • Adjust the position of the knockout bar for part ejection after the slide stroke has stopped (near top dead center).
   • Ensure the knockout bar does not touch the bottom of the knockout bar groove during movement.
6. Final Adjustments:
   • Use inch stroke and progress step by step.
   • Perform single and continuous strokes only when there is nothing preventing the press from functioning properly.

Air Pressure

• The air pressure of the punch press should be between 0.55-0.60 MPa.
• The maximum pressure of the safety valve should be 1 MPa.

IX. Operation Preparation

Running Preparation

1. Turn on the Main Control Box:
   • Switch the air switch in the main control box to the ON position.
   • Ensure that the punch press machine is functioning properly.
2. Secure the Main Control Box:
   • Close the door of the main control box.
   Warning: For safety reasons, it is forbidden to open the door of the main control box while the press is in operation.

Operation Preparation

1. Power On:
   • Turn on the switch on the operation panel. The power indicator (AC110V loop) should illuminate.
2. Emergency Stop Verification:
   • Ensure that the “Emergency Stop” button is not engaged.
3. Pressure Check:
   • If the pressure is not within the normal range, the indicator will turn off, and the punch press machine will enter an Emergency Stop state.
   • Correct the air pressure to the appropriate value and operate the press until the indicator is illuminated.

Start and Stop the Main Motor

Starting the Main Motor:

1. Press the Start Button:
   • The main motor will start, and the main motor indicator will light up.
   Note: The main motor will only run if the mode switch is in the “OFF” position.

Stopping the Main Motor:

1. Press the Motor Stop Button:
   • The main motor will stop running, and the indicator will turn off.

Automatic Stop Scenarios:

The main motor will automatically stop in the following scenarios:

1. Loop Fuse Blowout:
   • If the loop fuse in the main motor blows out.
2. Thermal Relay Protection:
   • If the thermal relay is in protection mode.

X. Daily Checkup

Initial Checkup

1. Clean the Bolster: Ensure that the bolster is clean and free of any objects. This is crucial to avoid any interference during operations.
2. Drive the Flywheel: Use the barring rod to manually drive the flywheel and check for smooth operation.
3. Power Cable Specifications: Verify that the power cable specifications meet the machine’s requirements to ensure safe and efficient operation.

Check After Opening Air Valve

1. Air Pressure: The air pressure of the clutch should be within the specified range of 0.55-0.6 MPa. This ensures proper functioning of the clutch mechanism.
2. Air Leaks: Ensure there are no air leaks in the system. This includes checking the clutch cylinder and rotator joint for any signs of air leakage.

Check After Power On

1. Power Indicators: Turn the switch to ON. Both power and pressure indicators should light up, confirming the system is powered and pressurized.
2. Mode Selection: Set the mode selection switch to the “inch stroke” position. Press and release the “two-hand” operation button to check the solenoid valve action. Ensure air release and flexible motion of the clutch without any interference.

Check After Starting the Main Motor

1. Main Motor Operation: Press the start button. The main motor should run, and the indicator should light up.
2. Flywheel Rotation: Verify that the rotation direction of the flywheel matches the direction marked on the press.
3. Flywheel Speed: Check the start and acceleration speed of the flywheel. The sound of the V-belt slipping should be normal, indicating proper tension and alignment.

Running Check

1. Inch Stroke Operation: During inch stroke mode, ensure the press operates smoothly without any abnormal noises or heaviness. Keep the two-hand operation button depressed during this check.
2. Single and Continuous Stroke:
   • Single Stroke: The press should not run continuously when pressing the operation button. The stopping position should be between +5° and -10° of the top dead center, with no deviation allowed.
   • Continuous Stroke: The motion should be normal. Press the emergency stop button to ensure the clutch separates and the emergency stop button locks. The stopping position should also be between +5° and -10° of the top dead center. Pressing the emergency stop button should result in the punch press stopping immediately.

Checking When Adjusting the Slide

1. Slide Adjustment Switch: Turn the slide adjustment switch to ON to prohibit operation during adjustment.
2. Die Height Adjustment: Adjust the height of the die. When the slide reaches the upper and lower limits, stop the motor adjustment.
3. Die Height Indicator: Check if the die height indicator matches the actual value to ensure accurate adjustments.

XI. Maintenance and Safety

Ensuring the safe and efficient operation of a punch press requires strict adherence to maintenance and safety procedures. The following guidelines should be followed meticulously to maintain the integrity of the equipment and the safety of the operators:

Operational Procedures

1. Clutch Engagement:
   • Engage the clutch only after the motor has started and reached full operational speed. This ensures smooth operation and prevents undue stress on the mechanical components.
2. Equipment Grounding:
   • Maintain proper grounding of the equipment at all times. Regularly check grounding connections to ensure they are secure and functioning correctly. This is crucial for preventing electrical hazards.
3. Power Management:
   • Always turn off the power when the operator leaves the press. This prevents accidental activation and reduces the risk of injury or equipment damage.
4. Load Management:
   • Ensure that the working load of the press is within the specified safe range. Overloading the press can lead to mechanical failure and pose serious safety risks.

Safety Devices and Precautions

5. Safety Device Assembly:
   • Do not operate the punch press if any safety devices are not properly assembled. Safety devices are critical for protecting operators from injury.
6. Material Handling:
   • Punching multiple sheets simultaneously is strictly prohibited. This can cause damage to the press and compromise the quality of the workpiece.

Inspection and Maintenance

7. Irregular Operation:
   • If the slide falls freely or strikes irregularly with noise, stop the punch press immediately. Inspect the machine to identify and rectify any issues before resuming operation.
8. Air Pipeline Inspection:
   • Frequently check the air pipeline for leaks. If a leak is detected, repair it before operating the punch press. Air leaks can affect the performance of pneumatic components and lead to operational inefficiencies.

Personal Safety Measures

9. Body Placement:
   • For personal safety, never place any part of the body into the dangerous area of the die. This area is highly hazardous and can cause severe injury.
10. Maintenance in Dangerous Areas:
    • Do not work or perform maintenance in the dangerous area without implementing appropriate safety measures. This includes de-energizing the machine and using lockout/tagout procedures.

Optional Safety Features

11. Photoelectric Protector:
    • The press is equipped with connection points for a photoelectric protector, which is an optional safety feature. Installing a photoelectric protector can enhance safety by detecting the presence of objects or body parts in the danger zone and stopping the press automatically.

XII. Troubles and Remedies

XIII. Easy Wearing Parts List

XIV. Attached Figures

Figure 1 Product Structure
Figure 2 Frame
Figure 3 Driving Parts
Figure 4 CIutch and Brake
Figure 5 SIide
Figure 6 Pneumatic schematic diagram
Figure 7 Lubrication schematic diagram
Figure 8 Foundation plan
Figure 9 Front Main Shaft Bushing
Figure 10 Back Main Shaft Bushing
Figure 11 Connection bottom bushing
Figure 12 Connection upper bushing