Stand up Plastic Pouch Packaging Heat Sealing Bar 4 Top view
Stand up Plastic Pouch Packaging Heat Sealing Bar 2 View
Stand up Plastic Pouch Packaging Heat Sealing Bar 1 Front view
Stand up Plastic Pouch Packaging Heat Sealing Bar 3 Rear view
Stand up Plastic Pouch Packaging Heat Sealing Bar 4 Top view
Stand up Plastic Pouch Packaging Heat Sealing Bar 2 View
Stand up Plastic Pouch Packaging Heat Sealing Bar 1 Front view
Stand up Plastic Pouch Packaging Heat Sealing Bar 3 Rear view

Stand up Plastic Pouch Packaging Heat Sealing Bar for Coffee Bag Making Machine

This curved heat-sealing bar is a bottom-sealing mold specifically designed for stand-up pouches, used for sealing the curved bottom of SUP. Made of aerospace-grade aluminum alloy, it features a mechanical locking mechanism. The bottom curvature and sealing edge dimensions can be customized.

Stand up Plastic Pouch Packaging Heat Sealing Bar for Coffee Bag Making Machine

 

Product Overview

 

This curved heat-sealing bar is a bottom-sealing mold specifically designed for stand-up pouches, used for sealing the curved bottom of SUP. Made of aerospace-grade aluminum alloy, it features a mechanical locking mechanism. The bottom curvature and sealing edge dimensions can be customized. It provides uniform and stable heat conduction, ensuring continuous high-temperature sealing without bubbles or leakage. Suitable for various composite stand-up pouches for coffee, daily chemicals, and snacks, and compatible with fully automated high-speed bag-making production lines.

Core Advantages

 

1.Developed and manufactured by a 30-year factory. It utilizes a complete Seibu wire EDM + CNC machining process, optimizing the heat sealing bar profile for high-barrier materials like aluminum foil, ensuring stable, leak-free sealing during long-term mass production.

 

2.Customizable to all sizes and curvatures, adaptable to various coffee bag specifications. Supports customization of bag opening curvature, sealing edge width, and overall machine length for different capacity coffee bags.

 

3.Constant temperature heat conduction ensures a strong, leak-free seal and long-lasting durability. Made of integrated aerospace-grade aluminum alloy, it provides even heat conduction without localized overheating; it is oxidation- and corrosion-resistant, allowing for continuous use on conventional production lines for many years without frequent blade replacements.

 

4.High-end processing equipment delivers superior quality compared to competitors. Utilizing Japanese Seibu wire EDM for cutting the sealing profile, combined with a CNC integrated milling die base, the profile is smooth and burr-free, resulting in a bubble-free and delamination-free seal.

Application

 

This custom heat-sealing bar is compatible with a wide range of flexible packaging materials, offering excellent adaptability and compatibility. It can process PE, PO, PP, OPP, PVC, PPE, PPU, CPE, and LDPE plastic films, and is also suitable for various flexible materials such as aluminum foil composite bags. It supports custom sealing designs for straight edges, rounded edges, waves, and irregular shapes. All sealing dimensions and outlines can be customized to meet specific needs. It boasts high heat-sealing precision, resulting in smooth, tight, and uniform sealing effects.

 

It is widely used in the production of coffee powder bags, dried fruit and snack bags, laundry detergent, sauces, and fruit and vegetable preservation stand-up pouches. It is suitable for fully automated bag-making production lines in food, daily chemical, agricultural, and consumer goods packaging factories, responsible for the curved sealing of the bag bottom. The finished product has strong sealing performance and no leakage issues.

Frequently Asked Questions

 

Q1:Are you a factory or a trading company?

A:We are a source factory with over 30 years of R&D and production experience, specializing in the production of pneumatic hole puncher, heat sealing bar, and die-cutting molds. With our own factory, equipment, and R&D team, there are no middlemen, ensuring higher quality and faster delivery.

Q2What driving method does the device use? What materials is it compatible with?

A:Driven purely by pneumatics, it is energy-efficient, stable, and compatible with automated production lines. It can seal most flexible packaging materials, including PE, PO, PP, OPP, PVC, and aluminum foil composite films.

Q3What is the maximum speed achievable for heat sealing?

A:It can operate synchronously with the bag making machine at high frequency, up to 200-300 times/minute, and is compatible with high-speed fully automatic mass production lines.

Q4Which payment methods are supported?

A:Such as T/T wire transfer, Western Union, Alipay and PayPal.

Customers can quickly obtain a quote by filling in information online:

 

  1. bag type
  2. Film material, total thickness of single layer/composite
  3. Required sealing shape, sealing width, total mold length
  4. Purchase quantity, target delivery date
  5. Contact information, receiving country/logistics requirements
  6. Additional requirements (exhaust valve clearance, special curvature, etc.; please upload drawings/samples)

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.

Packaging and Transportation

 

Usually production needs 7 working days for this oval hole puncher.
Then we can arrange the DHL,FedEx,UPS,TNT, etc. for you.
You can also ask your own agent to arrange the transportation.

Product Specifications

 

Mode of Operation mechanical type (locked on Bag Machine)
End Use seal the bag edge and bag mouth
Overall Size 640x60x23mm, customized
Sealing Shape arc-shaped, customized
Sealing Area bag edge+bag mouth, customized
Material aluminium alloy
MOQ 1 Pair (upper bar+bottom bar)
Lifetime many years
Delivery Time 5 working days
Final Price Decided by hole size&shape,passing slot,order quantity,etc.

 

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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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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.
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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.
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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 3 2 Right view

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

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