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Pneumatic Type R4mm Rounded Corner Cut Punch for Plastic PVC PPE OPP Bag

CRJ R4mm pneumatic corner rounding and punching tool is a pneumatic punching die for rounding the corners of plastic packaging bags. The hole puncher specifications are R4mm rounded corners (4 corners), using a C-type die base, with a material passing slot length of 150mm. It can be used for rounding the corners of PVC, PPE, OPP, and other plastic packaging bags.

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Product Details
Product Specifications

Pneumatic Type R4mm Rounded Corner Cut Punch for Plastic PVC PPE OPP Bag

Product Overview

It uses an aviation-grade aluminum alloy die base, imported Japanese HAP5R high-speed steel cutting tools, and an AirTAC cylinder. Original specifications state a maximum punching speed of 260 punches/minute, a weight of 3kg, a processing accuracy of 0.001mm, and a reference service life of 18-20 million punches. Other corner rounding sizes and cutting requirements can be customized based on drawings.

Key Advantages

Japanese-imported HAP5R high-speed steel

The blade part are made of imported Japanese HAP5R high-speed steel, which is wear-resistant and has a long service life.

Aerospace-grade aluminum alloy

The aerospace-grade aluminum alloy mold base balances structural strength and heat dissipation performance, providing stable support for the entire puncher.

AirTAC Cylinder

AirTAC cylinders provide pneumatic punching power, enabling continuous action in conjunction with bag-making or packaging equipment.

Hole type and size can be customized

In addition to the R4 round corner cut, other hole types and sizes can be evaluated based on customer drawings or samples.

Application

Rounding 4mm corners for PVC plastic bags;
Rounding corners for PPE plastic bags;
Rounding corners for OPP plastic bags;
Other plastic bags requiring custom-made corner sizes and cutting layouts according to drawings.

Customization and Selection Information

Customizable content

Other rounded corner dimensions；
Material passing slot and installation；
Non-standard configurations evaluated based on packaging bag drawings or samples。

Quotation and selection advice provided

Hole drawing or bag sample；
The name and the thickness of the film；
Film moving direction；
Hole position, film moving direction；
Order quantity, delivery address。

Why Choose CRJ

Established in 1996

CRJ Group has long served the plastic bag and flexible packaging industries with precision pneumatic punching, heat-sealing and cutting dies.

Precision Manufacturing and R&D Capability

We operates CNC machining centers, high-precision slow-wire EDM and medium-wire EDM equipment. Dedicated R&D and assembly-and-debugging departments provide complete assembly and testing capabilities.

Punching and Cutting Product Range

The product range covers interchangeable punches, round-hole punches, tear-notch punches, butterfly-hole punches, multi-hole punches, triangular-hole punches, handle-hole punches and custom-shaped punches, as well as hot knives, cold knives, pneumatic double cutters and cutting dies for vertical packaging machines.

Certifications, Patents and International Markets

The company has obtained ISO9001 quality-management-system certification, ISO14001 environmental-management-system certification and CE certification. It holds patents related to punching, heat-sealing and cutting products, and exports to more than 90 countries and regions.

FAQ

What packaging materials can be punched？

PVC, PPE, and OPP plastic packaging bags, etc. For other materials, please provide samples or material information for evaluation.

What is the maximum punching speed？

Maximum speed is 260 CPM. Actual speed will be affected by packaging materials, equipment synchronization, air supply, and installation status.

Get product solutions and quotes

Please send a drawing showing the rounded corner dimensions, packaging material, and equipment installation information. CRJ will assist in confirming the configuration and providing a quote based on your non-standard customization requirements.

Product Specifications

Hole Size&Shape	R4mm corner cut punch (4 corners)
Frame Type	C-frame type
Passing Slot Length	150mm
Punching Speed	up to 260 punches/min
Weight	3kg
Power Source	pneumatic type
Cylinder	AirTAC brand
Mold Base Material	aluminum alloy
Die Steel	imported from Japan,durable and precise
Life Time	up to 18,000,000 to 20,000,000 times
Precision	±0.001mm
Exact Price	decided by hole size&shape,passing slot,order quantity,etc.
MOQ	1 set
Supply Capacity	More than 1300 sets/month
Delivery Time	7 working days after payment

Reminder: The maximum speed, accuracy, and reference life are the product parameters in the original data. Actual operating results may be affected by materials, gas supply, equipment synchronization, installation alignment, and maintenance. Customization details are subject to the drawings and order requirements confirmed by both parties.

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Our Company Shines at Chinaplas International Rubber & Plastics Exhibition

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.

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What We Do

Services we Offer

Tailored Tooling Solutions Beyond OEM Constraints

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.

Our Core Customization Services

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.

Our Streamlined Service Workflow

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 Comparison: Traditional OEM vs. CRJ Custom Services

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

DONGGUAN CRJ MOULD TECH CO.,LTD. is a leading manufacturer offering a wide range of pneumatic hole punchers for the flexible packaging industry!

Email:operator@changrongjia.com

Phone:+86 13961606568

Address:No.10 Taoyuan Road, Dapu Village, Qingxi Town, Dongguan City, Guangdong Province, China

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