Interchangeable Type Pneumatic Small-hole Punch for Bag Making Machine
Interchangeable Type Pneumatic Small-hole Punch for Bag Making Machine
The CRJ interchangeable pneumatic small hole punch is a pneumatic punching die designed for installation on bag-making machines or flexible packaging film processing equipment.It is used for processing Φ1-Φ10mm round holes, V2×3-V2×10mm easy-tear openings notcher, and U2×3-U2×10mm easy-tearing, 3mm-10mm straight Line/corss knife/half-moon . Its die base and punching pin assembly feature a separate design; the mould base can be used to replace punching pin of different hole types and sizes as need.
Interchangeable Type Pneumatic Small-hole Punch for Bag Making Machine
Ф1mm to Ф10mm round hole/V2x3mm to V2x10mm and U2x3mm to U2x10mm tear notch hole/3mm-10mmStraight Line/corss knife/half-moon
Product Overview & Customer Pain Points
Packaging bag manufacturers often need to switch hole types between different orders. If a complete hole punching machine is provided for every small hole shape, it increases procurement, installation, and storage costs, and also prolongs downtime for changeovers. This interchangeable structure separates the punching pin assembly that needs to be changed from the long-term used die base, allowing customers to expand the hole shape according to actual production needs, making it more suitable for production scenarios with multiple varieties, small batches, or frequent order changes.
Solution：Use one compatible die set to manage multiple sets of small hole punching pins: replace different shapes and sizes of punching blade when the order changes, and resume production after resetting, alignment, and test punching confirmation.
Core Advantages
· Quick-change
The punch can be replaced in just about 15 seconds.
· A universal mold base supports various small holes
Φ1-Φ10mm round holes,
V2×3-V2×10mm V-notch,
U2×3-U2×10mm tear notcher,
3mm-10mm Straight Line/corss knife/half-moon
· Adapted for high-speed plastic bag production
The maximum punching speed can reach 300 cuts per minute. The actual production speed depends on the material, thickness, hole shape, air capacity, waste discharge, and the synchronization status of the bag making machine.
· Suitable for precision punching of thin films
It can punch single-layer films as thin as 10 microns.
· High-end Configuration
The mold base is made of aviation aluminum alloy, the punching blade is made of imported Swedish ASP mould steel, and the cylinder uses AirTAC brand to balance structural stability, response speed and ease of maintenance.
· Customize
Hole type, size, direction, mounting hole position, feed slot and pneumatic interface can be customized according to packaging design, material and equipment conditions.
Applicable materials, bag and equipment
Materials
It can be configured according to material, thickness, number of layers and hole type, and is used for plastic films such as PET, OPP, PO, CPE, PP, PE, PVC, PPE, PPU and paper-plastic composite packaging materials.
Bag
Three-side seal bags
Center seal bags
Eight-sided seal bags
Food and daily chemical packaging bags
Paper-plastic composite bags
Other flexible packaging bags requiring round hole, V-shaped, or U-shaped easy-tear openings
Device
It is compatible with a variety of bag making machines and flexible packaging processing equipment.
Customizable
Customizable content
• Hole type, hole size, and punching direction
• Number of punching components and arrangement of multiple holes
• Material passage depth and mould base structure
• Mounting hole positions and equipment connection dimensions
·Product identification, packaging, and instruction manual
Please provide the following information for an accurate quote:
·Hole size and shape
• Hole direction, number, spacing, and location on the bag
• Bag material type and total thickness
• Purchase quantity and destination country
Installation, Replacement and Maintenance
Pre-installation confirmation
• The mounting surface is stable, and the space and fixing hole positions meet the requirements.
• The feed slot can reach the target punching position.
• The punching direction is consistent with the film running direction.
• Compressed air is dried, and the pressure and flow rate meet the confirmed configuration.
• The control signal is matched with the solenoid valve.
• Punching waste can be discharged smoothly.
• Safety protection devices are installed in place
Typical changeover process
Stop the bag-making machine and disconnect or release the compressed air.
Remove the installed hole punching machine assembly.
Clean the positioning surface, mounting surface, and waste passage.
Install the compatible assembly with the required hole pattern and confirm the punching direction.
Restore the air supply and perform several trial punches at low speed.
Check the hole pattern, edges, and waste discharge before resuming continuous production.
Reminder: Do not replace the punching pin while the equipment is running or under pressure; do not strike the cutting edge or punch with hard objects.
Routine maintenance
• Before starting the machine, check the air pressure, fixing screws, punch position, and waste channel.
• Keep the punch and guide block lubricated according to the instructions; avoid using colored or water-containing lubricants.
• Regularly check the cylinder, air pipes, and connectors for leaks.
• If burrs are found on the hole edges, abnormal resistance, or noise, stop the machine immediately for inspection.
• Clean and store unused components in a dry environment.
Quality control, ordering and after-sales service
Pre-shipment inspection
Each punchers undergoes inspection according to the confirmed order, including appearance, hole size, die base size, mounting hole positions, punch pin and lower die alignment, cylinder movement, airtightness, continuous operation, punched sample, and waste material discharge. When customers provide material samples, trial punching can be arranged under agreed conditions, and pictures or videos can be provided for confirmation as needed.
Ordering process
Inform us of the hole size and shape.
Inform us of the hole’s location on the bag and the material feeding direction; if necessary, provide the bag size.
Inform us of the bag’s material type and thickness.
Confirm the drawings, quantity, price, and delivery date, and make payment.
Arrange production, inspection, and testing.
Pack and ship.
Provide installation guidance, troubleshooting, and maintenance support.
After-sales support
In case of any punching abnormalities, please provide the product number, order number, problem description, photos of the punched sample, operating video, material and thickness, current air pressure, and punching speed. The CRJ team will assist in diagnosing alignment, air supply, blade wear, waste material discharge, or equipment synchronization issues based on this information. The warranty period, scope, and handling methods for normal wear are subject to the quotation or sales contract.
Why choose Changrongjia?
Founded in 1996
CRJ Group has long been engaged in businesses related to plastic bags, flexible packaging, and precision pneumatic hole punching dies.
Focus on hole punching solutions for plastic packaging
Our product range covers interchangeable type hole puncher, round hole, easy-tear, butterfly hole, multi-hole, triangular hole, handle hole, and custom-made hole punches, heat sealing bar, cold-cut die, double cutting knife, and vertical packaging machine punching dies, etc.
Precision machining capability
We equipped with CNC machining centers, high-precision slow wire EDM and medium wire EDM equipment, and has established a professional R&D department and assembly and debugging department, possessing complete assembly and testing capabilities.
Patents and System Certification
Multiple patents related to punching equipment and punches, and certified by ISO9001 and ISO14001 systems, holding European certification and CE certificates.
Global service experience
Our products and services cover more than 90 countries worldwide, providing remote selection, drawing confirmation, installation, and after-sales maintenance support.
FAQ
Can this punch be directly installed on my bag making machine?
This hole punching machine is compatible with various bag making machines, including center-seal bags, three-side seal bags, eight-side seal bags, wicket bags, stand-up pouches, zipper bags, and non-woven bag making machines. However, installation space, mounting dimensions, film orientation, air source, and control signals need to be confirmed. Please provide the equipment photos, and installation dimensions before providing a quote.
What types of holes can be used with this replaceable mold base?
Within the compatible size range, Φ1-Φ10mm round holes and V-shaped and U-shaped easy-tear assemblies can be configured. Other complex irregular hole shapes may require re-evaluation.
How long does it take to replace the punching pin assembly?
The punch replacement takes about 15 seconds, but the actual replacement also includes stopping the machine to depressurize, cleaning, installation, alignment and test punching. The time depends on the equipment space and operating conditions.
What is the highest speed?
The maximum speed is 300 CPM. The actual speed depends on the material, thickness, hole type, air supply flow rate, waste disposal, and the synchronization status of the bag making machine.
What materials can be used for this?
PET、OPP、PO、CPE、PP、PE、PVC、PPE、PPU laminated film etc, for special materials, thick films, and multi-layer films, it is recommended to send samples for trial stamping first.
Can a punching component be added separately later?
Yes. Please provide the original product number, mold base size, or order details to confirm the compatibility of the new component with the existing mold base.
What information is required to provide a quote?
Please provide the hole type and size, material and thickness, number of layers, punching location, feed chute requirements, equipment installation dimensions, quantity, and destination.
What should be done after the cutting edge is worn?
Depending on the structure and degree of wear, the grinding or replacement of the punching assembly can be assessed. Please provide photos of the hole edges, product number, and operating conditions for technical personnel to provide treatment recommendations.
Get customized punching solutions
If you require round holes smaller than 10mm, V-shaped easy-tear openings, U-shaped easy-tear openings, or other custom small holes, please send a hole pattern diagram, material samples, and equipment installation information. CRJ will assist in confirming the punching structure, component dimensions, installation method, air supply requirements, trial punching arrangements, production cycle, and quotation.、
Pneumatic round hole punching molds for plastic bags are specialized punching equipment used in the production of plastic packaging bags. They rely on air to drive the punching action and are widely used in PE, PP, OPP and other film bags to punch various round holes such as hanging holes and venting holes. They are the preferred equipment for high-end mass production in the flexible packaging and bag making industries.
It is used to punch V-shaped easy-tear notches into plastic packaging bags/pouches and is compatible with various bag types and notch positioning requirements.
It utilizes a Japanese wire EDM machine with a rounded cutting edge, an imported high-speed steel punch, and an Airtac cylinder. The resulting notch is smooth, burr-free, and precisely aligned, ensuring smooth tearing without deviation. The notch size, depth, direction, and installation method can all be customized.
Innovative Interchangeable Hole Puncher Revolutionizes Efficiency and Maintenance
In a groundbreaking advancement for the plastic packaging industry, our company proudly announces the release of our best-selling interchangeable punching machine. Designed to address key inefficiencies and high maintenance costs associated with traditional punching machines, this innovative product is already making waves in the market.
Efficiency and Versatility
One of the standout features of our interchangeable punching machine is its versatile punching needle. Unlike conventional machines with fixed hole types, our machine allows for the replacement of the punching needle with specific sizes and hole types. This flexibility greatly enhances the efficiency of the punching process, providing manufacturers with a wider range of options and significantly reducing downtime.
Cost-Effective Maintenance
Maintenance costs have long been a concern for businesses using punching machines, but our new model addresses this issue head-on. When the punching needle becomes dull from long-term use, instead of incurring high maintenance costs, users can simply pay a small fee for shipping and a new punching needle. This cost-effective solution ensures the machine continues to operate at peak performance without the financial burden of extensive repairs.
Ease of Replacement
Another notable advantage of our interchangeable punching machine is the ease of replacing the punching needle. The process is straightforward and user-friendly, eliminating the need for specialized technicians and minimizing production delays. This feature makes our machine not only efficient but also highly practical for everyday use.
Our interchangeable punching machine represents a significant leap forward in both efficiency and creativity. By addressing common pain points and providing a flexible, cost-effective solution, we are empowering businesses to optimize their production processes and reduce maintenance expenses.
We invite you to experience the innovation and efficiency of our best-selling interchangeable punching machine. For more information and to see how this product can benefit your operations, please visit our company homepage.
About Our Company
As a leading manufacturer of plastic packaging machinery and accessories, we are committed to delivering innovative solutions that drive efficiency and reduce costs for our customers. Our dedication to quality and customer satisfaction continues to set us apart in the industry.
Thank you for your continued support. We look forward to helping your business achieve greater success with our latest innovations.
Our Company Shines at Chinaplas International Rubber & Plastics Exhibition
Our company participated in the Chinaplas International Rubber & Plastics Exhibition held at the National Exhibition and Convention Center in Shanghai on April 23, 2024. We were pleased to attend this event and achieved great success.
As a professional manufacturer of plastic packaging machinery and accessories, our goal was to expand our business and forge new partnerships. We were honored to have the opportunity to meet with customers from around the world and engage with them.
During the exhibition, we showcased our advanced technology and innovative products to a global audience, and we were thrilled with the positive response we received. We are proud to announce that we successfully reached several cooperation agreements during the exhibition, further expanding our markets and advancing our business. This gives us great confidence and enthusiasm for the future.
We want to thank all our customers who visited our booth, especially those who established cooperative relationships with us. Your trust and support mean a great deal to us, and we look forward to future opportunities for cooperation.
Chinaplas was an unforgettable experience that solidified our belief in a bright future for the plastic packaging industry. We are excited to see you again next year in Shenzhen!
Thank you for taking the time to read our press release. We invite you to learn more about our business and products on our company homepage.
Welcoming Our loyal Indian Customers: Strengthening Partnerships and Celebrating Success
We had the pleasure of hosting our long-term Indian customers at our company recently, and it was an incredibly enriching experience. Their visit underscored the importance of mutual assistance and collaboration in the packaging machine accessories industry.
It was wonderful to discuss the vital role our punching machines and packaging machinery play in their operations. These conversations highlighted how essential it is to maintain strong partnerships that enable us to support each other’s growth and success. Sharing insights and experiences with our customers always brings fresh perspectives and innovative ideas to the table.
During their visit, our customers brought a new batch of purchase orders, signaling their continued trust in our products and services. This not only strengthens our business relationship but also motivates us to keep pushing the boundaries of quality and efficiency. Seeing their enthusiasm and commitment to our long-term cooperation was truly inspiring!
One memorable moment from their visit was a detailed discussion about a particularly challenging project we tackled together last year. By leveraging our punching machines and their operational expertise, we successfully streamlined their packaging processes, resulting in significant cost savings and increased productivity. This success story is a testament to what we can achieve through collaboration and innovation.
We are excited about the future and the potential for even greater achievements through our partnership. The shared vision and mutual support between our teams create a strong foundation for continued success. We are committed to delivering top-notch products and exceptional service, ensuring that our customers remain competitive and successful in their markets.
At CRJ, we provide professional manufacturing and engineering services specializing in customized punch dies for flexible packaging. We help global packaging converters, converting plant managers, and machine operators break free from the inflated costs, rigid restrictions, and lengthy lead times associated with traditional OEM-only replacement cycles.
Whether you require precision replacement tooling or bespoke configurations for new bag styles, our custom engineering service is built to transform your technical drawings into high-performance, durable pneumatic hole punch solutions.
We do not just supply off-the-shelf components; we engineer custom pneumatic hole punching systems designed around your precise mechanical specifications:
Drawing-Based Non-Standard Customization: We manufacture punch pins, die blocks, and complete assembly units strictly according to your CAD files, engineering drawings, or physical sample parts.
Universal Machine Compatibility: Our custom tooling services extend seamlessly across all major packaging and converting machinery brands, including wicketing machines, side-sealing machines, and stand-up pouch lines.
Material & Durability Engineering: We consult on and utilize premium tool steel grades (such as SKH-9, ASP-23, and carbide inserts) optimized for specific film substrates—from standard PE/PP to abrasive laminates and biodegradable films.
We have optimized our procurement and production pipeline to ensure a frictionless experience from initial design submission to final dispatch:
Step 1: Submit Drawing or Sample: Share your technical drawings, sketches, or worn sample pieces with our engineering team.
Step 2: Technical Review & Quotation: We conduct a thorough feasibility check, recommend optimal materials, and provide a transparent, competitive quotation.
Step 3: Precision Manufacturing: Using advanced CNC grinding, wire EDM, and strict optical QA, your tooling is fabricated to exact micron tolerances.
Step 4: Rapid Production & Delivery (10–15 Days): Standard custom orders are completed and dispatched within 10 to 15 working days, depending on complexity and volume.
Step 5: Flexible Order Terms (MOQ = 1): Benefit from a low minimum order quantity of 1, supporting both emergency single-piece replacements and large-scale rollouts.
Service Feature
Traditional OEM Supplier
CRJ Custom Service
Customization Capability
Strictly catalog-based; resistant to non-standard drawing modifications.
100% built to your exact technical drawings and specifications.
Production Turnaround
4 to 8 weeks due to international supply chains and backorders.
Rapid 10–15 working days production lead time.
Minimum Order Quantity
High batch requirements or penalty fees for small quantities.
MOQ = 1; fully flexible for single prototypes or bulk orders.
Pricing & Cost Structure
Heavy brand markups and exclusive distribution tiers.
Direct factory pricing maximizing your operational ROI.
Ready to Upgrade Your Packaging Production?
Send us your technical drawings today to experience precision custom tooling backed by rapid 10–15 day delivery and an MOQ of 1.
THE COMPANYWELCOME TO
DONGGUAN CRJ MOULD TECH CO.,LTD is a leading Chinese manufacturer offering a wide range of pneumatic hole punching machine for flexible packaging industry
