Views: 0 Author: Wendy Liu Publish Time: 2026-03-26 Origin: Jewshin
For many manufacturers today, the decision to automate is not primarily about running faster. It is about removing the single biggest operational vulnerability in their business: dependence on manual labor that is increasingly expensive, increasingly difficult to recruit, and increasingly unreliable in availability.
This Korean customer project illustrates that reality with unusual clarity. The customer was not searching for the fastest bagging machine on the market. They were searching for an automatic bagging solution that could protect a scratch-sensitive product surface, automate the feeding process upstream of the bagger, and replace enough manual workers to fundamentally change the economics of their production operation.
The solution we delivered—a JS 3550 automatic bagging machine with an automatic card feeding machine, a customized 300 feeder, and anti-scratch machine treatment—achieved exactly that. After installation, the customer eliminated 5 to 6 manual positions, recovered the full machine investment in approximately 3 months based on Korean labor costs, and—perhaps most importantly—gained the operational confidence to accept new customer orders without worrying about whether they could recruit enough workers to fulfill them.
This case study explains what the customer needed, why standard equipment would not have solved the problem, what we customized, and what the measurable production results were.
This Korean manufacturer was facing a combination of challenges that are increasingly common across high-labor-cost manufacturing markets:
Challenge | Details |
Product Size | 305 × 415 mm — relatively large flat product |
Surface Sensitivity | Product surface scratches easily during handling |
Labor Cost | Approximately RMB 65 per worker per hour (Korean market rate) |
Recruitment Difficulty | Consistent difficulty finding and retaining production workers |
Production Goal | Replace manual feeding and bagging with a stable automated workflow |
The customer's core problem was not production speed—it was labor dependency. Their existing process required multiple workers to manually feed products, insert cards, and load products into bags. Each of those manual touchpoints created labor cost, introduced surface scratch risk from human handling, and made production capacity directly proportional to workforce availability.
When you cannot reliably hire enough workers, your production capacity becomes unpredictable—and unpredictable capacity means you cannot confidently accept orders.
Many buyers initially approach this type of project by asking: "What bagging machine fits my product size?" That question is necessary but insufficient. For this Korean customer, three additional requirements made the project significantly more complex than a standard bagging machine purchase:
The customer's product was highly sensitive to surface scratching. Any contact with hard machine surfaces, rough conveyor materials, or abrasive guide components during the feeding-to-bagging workflow would create visible marks that degraded product appearance and quality. A machine that runs at the right speed but scratches the product surface is worse than manual packing—because it damages products at a much higher rate than careful hand handling.
This meant every contact point in the entire machine system—feeder surfaces, conveyor guides, transfer mechanisms, bag insertion paths—had to be evaluated and treated for scratch prevention. This is not a standard feature of any off-the-shelf bagging machine.
A bagging machine automates the bag-making and sealing process. But if workers still stand at the front of the machine manually loading products one by one, the labor reduction is limited and the infeed rate is inconsistent. For this customer, automating the feeding process was as important as automating the bagging process itself.
The customer needed a feeder that could automatically pick and deliver their 305 × 415 mm products into the bagging machine at a consistent rate—without manual handling, without surface contact damage, and without interruption.
The customer's packaging format required an insert card to be fed into the bag alongside the product. Manual card insertion is slow, inconsistent, and adds another manual station to the workflow. Automating this step with a dedicated card feeding machine eliminated another manual touchpoint.
Based on the customer's product dimensions, surface sensitivity, and automation requirements, we configured the following system:
The JS 3550 was selected based on the customer's product size of 305 × 415 mm. The "3550" designation corresponds to the machine's bag-making capability range, providing comfortable size compatibility for the customer's product format with appropriate clearance for stable bag forming, sealing, and product insertion.
Why the JS 3550 was the right model for this application:
Product size compatibility confirmed for 305 × 415 mm
Stable bag forming and sealing quality for the customer's bag material
Designed for integration with upstream automatic feeding systems
Compatible with card feeding module for insert packaging
Supports the continuous, unattended production flow the customer required
The card feeding machine automatically feeds insert cards into the bagging process in synchronization with the product feed cycle. This eliminates manual card insertion—one of the slower and more error-prone manual steps in the original workflow.
The customized 300 feeder is the upstream automation module that replaced manual product loading entirely. Designed specifically for this customer's product dimensions and surface sensitivity requirements, the feeder provides:
Automatic product feeding — products are picked and delivered to the bagging machine infeed without manual handling
Consistent feeding rhythm — stable, metered product delivery that matches the bagging machine cycle speed
Reduced product contact — minimized surface contact points to support the anti-scratch requirement
Continuous operation — enables extended production runs without operator loading intervention
The feeder is the module that transforms this project from "an automatic bagger with manual loading" into "a fully automatic feeding-and-bagging system." Without it, the customer would still need 2–3 workers at the machine infeed—and the full labor reduction would not be achievable.
This was the most project-specific customization. Based on the customer's scratch sensitivity requirement, we applied anti-scratch treatment across all product contact surfaces throughout the entire machine system—feeder contact points, transfer surfaces, guide rails, bag insertion paths, and any component where the product surface could contact machine materials during the feeding-to-bagging workflow.
This treatment included:
Surface polishing and smoothing of all product contact areas
Application of low-friction, non-abrasive surface coatings where appropriate
Replacement of standard metal guides with surface-safe materials at critical contact points
Testing and validation with actual product samples to confirm zero-scratch performance before shipment
For products where surface quality is a commercial requirement—not just a preference—anti-scratch treatment is not an optional upgrade. It is a core specification that determines whether the machine is acceptable for production use.
After installation and commissioning, the customer's automatic feeding-and-bagging system replaced 5 to 6 manual workers who previously handled product loading, card insertion, and bagging operations.
Based on the customer's reported Korean labor cost of RMB 65 per worker per hour:
Metric | Calculation |
Hourly labor saving (5 workers) | 5 × RMB 65 = RMB 325/hour |
Hourly labor saving (6 workers) | 6 × RMB 65 = RMB 390/hour |
Daily saving (8-hour shift, 5 workers) | RMB 2,600/day |
Daily saving (8-hour shift, 6 workers) | RMB 3,120/day |
Monthly saving (22 working days, 5 workers) | RMB 57,200/month |
Monthly saving (22 working days, 6 workers) | RMB 68,640/month |
Machine payback period | Approximately 3 months |
A 3-month payback period is exceptionally fast for a packaging automation investment. Most packaging machinery investments are evaluated against 12–24 month payback expectations. This project's rapid payback was driven by the combination of high Korean labor cost and the significant number of manual positions eliminated.
Beyond the direct labor cost savings, the customer reported a qualitative benefit that is difficult to quantify but commercially significant: they now accept new customer orders with greater confidence.
Before automation, the customer's production capacity was directly constrained by their ability to recruit and retain manual workers. During peak seasons or when workers left, production capacity dropped—and the customer had to either decline orders or risk delivery delays. This created a commercial hesitancy that limited business growth.
After automation, the customer's production capacity is determined by machine speed and uptime—both of which are predictable and controllable. The customer's ability to say "yes" to new orders is no longer dependent on whether they can hire enough people next month.
For manufacturing businesses in high-labor-cost markets facing chronic recruitment difficulties, this operational confidence is often as commercially valuable as the direct labor cost savings.
This case illustrates a principle that applies broadly across packaging automation: the most important part of many projects is not which machine model is selected, but how the machine system is adapted to the specific product and production requirements.
For this Korean customer, four elements had to be correct simultaneously:
Machine model sizing — the JS 3550 had to physically accommodate the 305 × 415 mm product
Feeding automation — the customized 300 feeder had to deliver products automatically at a rate and rhythm compatible with the bagger
Card feeding integration — the card feeder had to synchronize with both the product feeder and the bagger
Surface protection — every contact surface across all three machines had to be treated for anti-scratch performance
If any one of these four elements was missing or inadequate, the project would not have met the customer's requirements. A standard JS 3550 without anti-scratch treatment would have damaged products. A JS 3550 with anti-scratch treatment but without the automatic feeder would still have required 2–3 manual loaders. A JS 3550 with feeder but without card feeding would have required a manual card insertion station.
The value was in the complete, integrated, customized solution—not in any single machine component.
This type of customized automatic bagging solution is especially relevant for manufacturers who share one or more of the following conditions:
High labor cost markets — Korea, Japan, Europe, North America, Australia, and other regions where manual packaging labor is expensive
Chronic recruitment difficulty — factories that cannot reliably hire enough production workers, especially for repetitive manual tasks
Scratch-sensitive or surface-quality-critical products — electronics, printed materials, polished surfaces, coated products, display items
Relatively large flat products — products in the 200–500mm range that are awkward for manual handling and standard-size baggers
Insert card or accessory packaging requirements — products that require cards, manuals, or accessories inserted alongside the product
Desire for upstream feeding automation — not just bagging, but the complete feeding-to-bagging workflow
Need for rapid payback — situations where labor cost savings can justify the machine investment within months
This customer's decision was driven by labor cost and recruitment difficulty—not by speed or capacity limitations. For manufacturers in high-labor-cost markets, the ROI calculation for automation is overwhelmingly favorable when 5–6 manual positions can be eliminated.
For scratch-sensitive products, anti-scratch machine treatment is a core requirement—not an upgrade. A machine that damages products at production speed creates more problems than it solves.
A bagging machine with manual feeding still requires manual workers. A bagging machine with automatic feeding creates a genuinely unattended production flow. The feeder is what transforms a semi-automatic station into a fully automatic system.
When a customer can clearly calculate a 3-month payback based on documented labor savings, the investment decision becomes a financial no-brainer rather than a strategic debate.
Automation removes the labor constraint that prevents manufacturers from accepting new orders. This commercial confidence—the ability to say "yes" to opportunities—is a growth enabler that compounds over time.
At Jewshin, our Automatic Packaging Machines range includes OPP Bagging Machines, PE Film Bagging Machines, Friction Feeder Machines, Card Packaging Machines, Horizontal Flow Wrappers, and Envelope Bagging Machines—covering a broad range of product types, sizes, and packaging formats.
When customers ask us about an automatic bagging solution, we begin with the questions that determine whether a standard machine or a customized system is required:
What is the product size and shape? — determines machine model selection
Is the product surface sensitive to scratching or marking? — determines whether anti-scratch treatment is needed
Is automatic feeding required, or is manual loading acceptable? — determines whether a feeder is part of the project
Is card or insert feeding needed? — determines whether a card feeder is integrated
How many manual workers does the current process use? — establishes the labor reduction baseline for ROI calculation
What is the local labor cost? — enables payback period estimation
This project-based approach—starting from the product and the production problem, not from a machine catalog—is what enables us to deliver solutions that create measurable production value rather than simply supplying equipment.
Product information: Product photos (front and back), product dimensions (L × W × thickness), product material, whether the surface is scratch-sensitive, product weight, any special handling requirements.
Packaging information: Bag type (OPP, PE, or other), bag dimensions, whether card or insert feeding is needed, card dimensions if applicable, sample bag if available.
Production information: Current manual process description, number of workers currently used, target production speed, shift arrangement, labor cost per worker (for ROI estimation).
Automation requirements: Whether automatic feeding is required, whether feeder customization is needed, whether the system must connect with other upstream or downstream machines, preferred automation level.
Why was the JS 3550 model selected for this project?
The JS 3550 was selected based on the customer's product size of 305 × 415 mm. The machine's bag-making and sealing capability provided appropriate compatibility for this product format, and its design supported integration with the automatic card feeder and customized 300 feeder required for the complete automated workflow.
What does "anti-scratch machine treatment" involve?
It involves identifying every point in the machine system where the product surface contacts machine components—feeder surfaces, transfer guides, conveyor paths, bag insertion mechanisms—and treating those surfaces to eliminate scratch risk. This may include surface polishing, low-friction coating application, and replacement of standard metal components with surface-safe materials. The treatment is validated with actual product samples before the machine ships.
How was the 3-month payback calculated?
Based on the customer's reported Korean labor cost of approximately RMB 65 per worker per hour, and the elimination of 5–6 manual workers, the monthly labor cost savings ranged from approximately RMB 57,200 to RMB 68,640. The total machine investment—including the JS 3550, card feeder, customized 300 feeder, and anti-scratch treatment—was recoverable within approximately 3 months of these savings.
Can Jewshin provide anti-scratch treatment for other product types?
Yes. Anti-scratch machine treatment is a customization capability that can be applied to any Jewshin packaging machine where the product surface requires protection during automated handling. This is relevant for electronics, printed materials, polished surfaces, coated panels, and any product where surface quality is commercially important.
Is automatic feeding available for products other than the size in this case study?
Yes. Jewshin offers Friction Feeder Machines and customizable feeder systems across a range of product sizes and formats. The customized 300 feeder in this project was configured specifically for the customer's 305 × 415 mm product—but feeder customization is available for different product dimensions.
If you are looking for an automatic bagging solution with custom feeding, card insertion, and anti-scratch design for sensitive products, our team at Jewshin is ready to evaluate your product and recommend a practical machine configuration based on your actual production requirements and labor reduction goals.
Jewshin — Dongguan Jewshin Intelligent Machinery Co., Ltd.
Website: www.jewshin.com
Email: wendy@jewshin.com
WhatsApp: +86-13128136672
Send us your product photos, dimensions, surface sensitivity details, current manual process description, and labor cost information—and we will provide a free customized bagging solution proposal including machine model recommendation, feeder configuration, anti-scratch treatment scope, and estimated payback period based on your actual production conditions.
