Center Seal Bag Making Machine | High Speed Servo – Xinghong

A center seal bag machine makes bags with one seal down the middle of the back, plus a seal at the top and bottom. Many buyers call the result a pillow bag or back seal bag. It is a simple, efficient bag format for products such as nuts, rice, pet food and feed.

If you are comparing a center seal bag making machine with other formats, you need clear answers on speed, bag size, control system, film options and after-sales support. This guide covers those points for the Xinghong H600, built by Jiangyin Xinghong Packaging Machinery Co., Ltd. in Jiangsu, China. It also explains when a three-side seal machine or a stand up pouch machine is the better choice.

What Is a Center Seal Bag Making Machine?

A center seal bag making machine turns a roll of packaging film into finished bags. The machine folds the film, seals the back seam, seals the bag ends and cuts each bag to length.

Note that a bag making machine produces the bags. It does not fill them. Buyers usually run the finished bags through a separate bagging or filling line. This is different from a vertical form-fill-seal machine, which makes and fills the bag in one step. If your plant needs to control bag size, film structure and bag cost in-house, a dedicated bag making machine gives you that flexibility.

Xinghong lists this model as the "H600 Mid Seal Machine." Mid seal, middle seal and center seal all describe the same bag type.

Xinghong H600 Center Seal Bag Making Machine Overview

TheH600 center seal bag making machine is a high speed, fully automatic machine designed for center seal bags. According to the product page, it runs at up to 200 CPM (cuts per minute) and handles bag widths from 80 to 600 mm and bag lengths from 80 to 500 mm.

Jiangyin Xinghong Packaging Machinery Co., Ltd. was founded in 2016. Its factory in Gushan Town, Jiangyin City covers 10,000 square meters. The company focuses on the research, development and manufacturing of bag making equipment, including three-side seal, four-side seal, center seal, stand-up, zipper and nozzle bag machines. This range lets buyers source several bag formats from one supplier.

How Does a Center Seal Bag Machine Work?

The H600 follows five clear steps:

1.       Unwinding: the film feeds from the roll through a regular unwinding structure.

2.       Folding: the machine folds the film in the middle or at the edge.

3.       Longitudinal sealing and cooling: the back seam is sealed, then cooled to set the seal.

4.       Transverse sealing: the T-seal closes the bag ends under high pressure and low temperature.

5.       Cutting and collecting: the machine cuts the bags, then collects them. Options include double cutting, CCD cutting, die cutting, auto collecting, and inspection and removal of faulty bags.

The high-pressure, low-temperature T-seal helps protect the film from heat damage. This matters when you run laminated or heat-sensitive films.

Key Features of Our High Speed Servo Center Seal Bag Machine

These are the features buyers ask about most:

•         Servo drive: one servo motor on the main drive and two servo motors on the film feed.

•         Speed: up to 200 CPM, depending on bag size and film.

•         Wide size range: 80–600 mm width and 80–500 mm length.

•         PLC and bus control: a stable control platform for bag length and machine logic.

•         Remote debugging: engineers can connect to the machine to help solve problems.

•         Flexible cutting: double cut, CCD cut and die cut are available as options.

•         Non-stop coil change (option): film storage of 50 m keeps the line running during roll changes.

Center Seal Bag Machine Technical Specifications

The table below summarizes the H600 data published on the Xinghong website. Final configuration depends on your bag design and film.

Please send your bag drawing and film details. Our engineers will confirm the exact machine setup before quotation.

PLC and Servo Control System for Accurate Bag Length

Bag length accuracy affects print registration, seal quality and material waste. The H600 platform uses PLC control with servo-driven film feed and main drive. On the Xinghong website, the control system is described as Panasonic PLC pulse control, which supports high precision in bag length control with a low failure rate.

Xinghong also offers bus control. This system uses a motion controller connected by Ethernet bus. The company states that it offers fast computation, simple installation and maintenance, easy operation and room for added custom functions.

For printed film, you can add a CCD visual positioning device. It reads the print mark and controls the cut position more precisely.

Remote Monitoring and Online Technical Support

Many overseas buyers worry about downtime when the supplier is thousands of kilometers away. Xinghong addresses this in three ways:

•         Remote viewing: the software running status of the machines can be viewed remotely.

•         Remote debugging and detection: engineers connect to the machine and help find the problem.

•         Video and phone service: available 24/7, with an emergency repair service listed on the company website.

Each machine is tested in the factory before delivery. On request, Xinghong provideson-site start-up and training service. The buyer prepares the installation site, power, compressed air, trial materials and operators, and supports the technician's travel arrangements. The service page lists these steps in detail.

Bag Types Our Center Seal Machine Can Make

The H600 is designed for center seal bags. Within the stated width and length range, you can make a wide choice of bag sizes. Common options include:

•         Small retail bags for nuts and dry food

•         Medium bags for rice and pet food

•         Larger bags up to 600 mm wide for feed and bulk products

If your project needs a bag that stands on the shelf, choose a stand up pouch making machine instead. Xinghong'sD600 stand up bag machine makes stand-up bags and Doypack pouches at up to 200 CPM. It can also fix zippers into bags with ultrasonic and hot press methods.

Center Seal Bag Machine for Food, Nuts, Rice, Pet Food and Feed Packaging

The Xinghong website lists these bag applications across its product range:

•         Nut bags

•         Rice bags

•         Cat food bags

•         Feed bags

•         Fresh meat bags

•         Aluminum foil bags and aluminum-plastic composite bags

•         High-temperature cooking bags and vacuum cooling bags

•         Live fish bags

Not every bag type suits every machine model. Tell us your product, bag size and filling method. We will confirm whether the H600, a three-side seal machine or a stand up pouch packaging machine fits your project.

Compatible Films: PE, OPP, CPP, Aluminum Foil and Laminated Materials

Film choice decides seal strength, shelf life and bag cost. Buyers commonly ask about PE, OPP, CPP, aluminum foil and laminated films. Xinghong's application list includes aluminum foil bags and aluminum-plastic composite bags, so these structures are part of its bag making experience.

Sealing results depend on the film's thickness, sealing layer and heat resistance. For this reason, we recommend confirming your film before you order:

•         Send the film structure, thickness and roll width.

•         Share a film sample or specification sheet.

•         Tell us the product weight and filling method.

•         Ask Xinghong to confirm the sealing setup for your film.

Center Seal vs Three Side Seal Bag Machine: Which Should You Choose?

Both machines make flat bags, but the seal layout differs. A center seal bag has a back seam and two end seals. A three-side seal bag is sealed on three edges and made from folded film. A 4 side seal bag machine seals all four edges, which suits some flat pack formats.

Xinghong'sX600 3 side seal machine runs at up to 300 CPM and makes bags from 60 to 580 mm wide and 30 to 600 mm long. The H600 runs at up to 200 CPM with 80 to 600 mm width and 80 to 500 mm length.

Choose a center seal machine when:

•         You want a pillow-style bag with a back seam.

•         Your bags are medium to large, up to 600 mm wide.

•         You pack nuts, rice, pet food, feed or similar dry products.

Choose a three-side seal machine when:

•         You need a flat bag with three sealed edges.

•         You need higher speed on smaller bags.

•         Your design needs a shorter bag, down to 30 mm.

If your target is a freestanding pouch, review the D600 and our other standup bag machine options instead.

How to Choose the Right Center Seal Bag Making Machine

Use this checklist to compare suppliers on a fair basis.

Confirm Bag Size and Film

List your smallest and largest bag sizes, film type and thickness. Check that the machine range covers all of them with some margin.

Set a Realistic Output Target

Rated speed is a maximum. Real output depends on bag length, film and seal time. Ask the supplier for a test video that uses film similar to yours.

Check the Cutting and Registration Method

Plain film may only need standard cutting. Printed film often needs CCD cutting. Die cutting suits special edge shapes.

Review Control Brands and Spare Parts

Ask which PLC, servo and motion control components the machine uses. Clear component information makes future maintenance easier.

Verify Support Before You Pay

Ask how the supplier handles remote support, installation, training and spare parts. Get delivery time, payment terms and warranty terms in writing.

Customization Options for Your Bag Size and Production Needs

Customization is a core strength of Xinghong. The company states that it can design and arrange production within 45 days according to customer requirements. Please confirm the exact lead time for your order in the quotation.

For the H600, the website lists these options:

•         Custom machine width

•         Servo motor unwinding in place of the standard unwinding

•         Non-stop coil change with 50 m film storage

•         Double cut

•         CCD cut for printed film

•         Die cut

Xinghong's product line also includes stand up pouch, zipper bag and nozzle bag machines. Buyers who plan to add a second bag format can discuss the whole project in one conversation. If you also need a stand up pouch filling machine, tell us early so the bag design suits your filling line.

Why Buy a Center Seal Bag Machine from Jiangyin Xinghong?

When you shortlist stand up pouch machine manufacturers and bag making suppliers, look for facts you can verify. Here is what Xinghong publishes on its website:

•         In-house manufacturing: all key machine components are made on the company's CNC machine tools.

•         Factory inspection: machines pass factory self-inspection and testing before delivery.

•         Remote service: remote viewing, debugging and detection help reduce downtime.

•         Fast customization: design and production arrangement within 45 days on request.

•         One-stop range: three-side, four-side, center seal, stand-up, zipper and nozzle bag machines.

•         Direct communication: inquiries go through email, WhatsApp and WeChat.

Xinghong does not claim certifications on its website. If your market requires specific documents, ask the team to confirm what they can supply.

Center Seal Bag Machine FAQs: Price, Delivery, Warranty and After-Sales Service

How much does a center seal bag machine cost?

Xinghong does not publish a fixed price. The center seal bag machine price depends on machine width, cutting method, unwinding type, coil change option and control configuration. The same applies to a stand up pouch machine price or stand up pouch making machine price. Send your bag size, film and daily output target for a quotation.

What is the delivery time?

The website states that Xinghong can design and arrange production within 45 days according to customer requirements. Actual delivery depends on your configuration and order volume. Please confirm it in the quotation.

Can the H600 make stand up pouches?

No. The H600 is designed for center seal bags. For stand-up bags and Doypack pouches, see the D600. For flat three-side seal bags, see the X600.

Does the supplier provide installation and training?

Yes, on request. Machines are tested in the factory before delivery. Xinghong offers on-site start-up and training service, and the buyer prepares the site, power, compressed air, trial materials and operators.

What warranty applies?

Warranty terms are not listed on the website. Ask for the warranty period and covered parts in your quotation or contract before you order.

What after-sales support is available?

Xinghong offers remote debugging, remote detection, and video and phone service 24/7. Emergency repair service is also listed on its website.

Conclusion

A center seal bag making machine is a practical choice when you need fast, consistent pillow-style bags for nuts, rice, pet food, feed and similar products. The Xinghong H600 combines servo drive, PLC and bus control, flexible cutting options and remote technical support. Clear specifications and customization options help you match the machine to your bag size and film.

If you are comparing suppliers, send us your bag drawing, film details and target output. Our team can share product details, discuss customization, and prepare a quotation. You can also ask about technical support and test options for your project.

Contact Jiangyin Xinghong Packaging Machinery Co., Ltd.

•         Email: info@djplas.com

•         WhatsApp / WeChat: +86-13815131811

•         Address: NO.7 Zhujiaba Jianqing Village, Gushan, Jiangyin, Jiangsu, China

•         Website:www.xhpouchmachine.com