WG-250 Premade Pouch Packing Machine for Thailand Dried Fruit Project: Dried Mango, Peach & Strawberry Line

Summary

Premade pouch packing machine technology is now at the heart of a landmark dried fruit packaging project in Thailand. A leading Thai processor of dried mango, dried peach and dried strawberry recently completed a new automated line with our WG-250 premade pouch packing machine at its core. The customer first visited our Shanghai factory in May, bringing real production samples for live trials, and the test results were so convincing that they approved a complete solution: a manual sorting line, a large-angle inclined elevator, a multi-head combination weigher and the WG-250 machine. Because dried fruit is naturally sticky and irregular in size, we engineered anti-stick contact surfaces, adjustable bag guides and quick-change tooling so that dozens of products and bag styles can run on a single line. The project passed acceptance successfully and is now in commercial operation. For dried fruit exporters who struggle with sticky products, irregular piece sizes and frequent bag changeovers, this case study explains the technology, the engineering details and the results - and how the same line concept can be replicated for other processors across Southeast Asia.

What Is a Premade Pouch Packing Machine?

A premade pouch packing machine, also called a pre-made bag packing machine or rotary bag filling machine, is an automatic packaging machine that works with pouches produced in advance by a bag manufacturer, instead of forming the bag from a flat film roll on the machine itself. That single difference explains its popularity with dried fruit exporters. Pre-made pouches can be pre-printed with high-quality graphics, fitted with zippers, shaped as stand-up pouches with gussets, or produced from laminated composite films that ordinary vertical form-fill-seal machines cannot easily handle.

Inside the machine, a rotary carousel carries the pouches through eight work stations in one continuous cycle. A magazine feeds one pouch at a time; suction cups open the pouch mouth; grippers hold it square; the filling station drops the weighed product in; and the sealing station closes the pouch with heated jaws before the finished bag is discharged. In the WG-250 model delivered to Thailand, this cycle runs at up to 70 bags per minute, handling bag lengths up to 400 mm and bag widths from 130 to 260 mm. The machine is built from 304 stainless steel, requires 380 V and 8 kW of power, consumes 0.4 m³/min of compressed air at 5-7 kg/cm², weighs 580 kg and measures 1850×1250×1520 mm.

In a complete dried fruit project, the premade pouch packing machine works as part of a weighing and feeding line. Product is first inspected on a manual sorting line, then lifted by a large-angle inclined elevator into a multi-head combination weigher, which releases the exact target weight into each open pouch. Every element must be tuned to the product, which is why sticky and irregular dried fruit demands specialist engineering rather than a standard off-the-shelf bagging machine. Premade pouch technology also suits the production pattern of most dried fruit exporters: medium batch sizes, frequent recipe changes and premium retail packaging, where pre-printed stand-up and zipper pouches create the shelf appeal that flat film bags cannot match. The WG-250 delivers this flexibility without sacrificing output, which is why it was selected as the core of the Thailand line.

Why Dried Fruit Processors Need a Specialist Packaging Line

Dried fruit is one of the most demanding products in food packaging, and Thai producers of dried mango, dried peach and dried strawberry face the same four headaches every season. First, the fruit is sticky: natural sugars and surface moisture make slices cling to hoppers, chutes and weigher buckets, which causes bridging, blockages and underweight bags. Second, the pieces are irregular - no two slices are the same length, thickness or shape - so accurate dosing and gentle handling are hard to achieve at speed. Third, successful exporters run dozens of SKUs and several bag styles, from flat pouches to stand-up pouches and resealable zipper bags, so every changeover is lost production time. Fourth, export customers and food-safety auditors demand food-grade materials, consistent seal quality and traceable, hygienic operation on every batch.

This is why the customer chose a premade pouch platform instead of a generic bagging machine. The project delivers four core advantages that matter directly to a dried fruit packing business:

• One machine, many formats: the WG-250 runs flat bags and stand-up pouches, zipper bags, doypack pouches and composite film pouches, so the customer's wide range of products and bag types is covered without buying separate machines for each format.
• Accurate dosing with less giveaway: the multi-head combination weigher compares several partial weights and releases the combination closest to the target, which reduces giveaway on expensive dried fruit while keeping every bag above the legal minimum weight.
• Gentle, anti-stick product handling: polished and anti-stick treated contact surfaces, a carefully angled elevator and tuned weigher buckets move sticky slices without smearing, crushing or jamming.
• Food-grade quality and single-source accountability: 304 stainless steel construction, factory trials before shipment and on-site commissioning help the line meet GMP and export requirements, with one supplier responsible for the whole project.

For processors asking how to pack dried mango without sticking, or how to run a nuts and dried fruit snack packing machine across many bag sizes, the proven answer is a premade pouch platform matched with the right upstream feeding and weighing equipment - exactly the approach applied in this Thailand project. Beyond throughput, consistent sealing also protects product quality in a tropical climate: properly sealed barrier pouches keep moisture out, preserve the natural colour and texture of dried fruit, and extend shelf life during long export journeys. That combination of production efficiency and product protection is the real business case behind the investment.

How the Thailand Dried Fruit Project Was Delivered

The project began in May, when the Thai customer - a processor whose catalogue includes dried mango, dried peach, dried strawberry and many other dried fruit products - visited our factory in Shanghai with real production samples. They came to verify one critical question: whether a premade pouch machine could handle fruit sticky enough to cling to bare steel, and irregular enough to defeat ordinary feeding systems. During the trial, the WG-250 ran their samples through a complete test configuration, and the results exceeded their expectations in both speed and accuracy. Based on that successful trial, the customer approved a full project consisting of a manual sorting line, a large-angle inclined elevator, a multi-head combination weigher and the WG-250 premade pouch packing machine.

The line follows a clean, logical product flow. Workers on the manual sorting line inspect every slice and remove defective, discoloured or broken pieces before packaging, protecting the consistent quality that Thai dried fruit is known for in export markets. Sorted fruit is then carried upward by the large-angle inclined elevator into the weigher hopper. This elevator is a small component with a big job: sticky slices must be lifted at a steep angle without sliding back, clumping together or leaving sugar residue on the conveying surface, so the belt material, surface finish and incline angle were all engineered specifically for this product family. From the elevator, the fruit enters the multi-head combination weigher, which holds several partial portions at once and releases the combination closest to the target net weight - an essential feature when every gram of dried mango represents real cost.

At the heart of the line, the WG-250 premade pouch packing machine runs up to 70 bags per minute across its eight work stations, with a bag size range that suits retail dried fruit pouches. Because the customer's products vary widely in stickiness and piece size, several engineering details were added during the project. Anti-stick treatments on chutes, funnels and bucket surfaces stop sugar-coated slices from adhering. Adjustable bag guides and sealing tooling allow rapid changeover between flat pouches, stand-up pouches and zipper bags, so different SKUs share one machine with minimal downtime. Servo-driven motion control keeps the opening, filling and sealing sequence precise even when product flow is uneven, and temperature-controlled sealing jaws deliver strong, leak-free seals on laminated composite films. Every detail was reviewed with the customer before the machine was shipped.

After delivery, our engineers commissioned the line with the customer's own products on site and ran full acceptance tests. The project passed acceptance successfully, and the line is now packaging multiple dried fruit recipes in commercial production. For future expansion, the WG series also includes the WG-210 for smaller pouches of 90-210 mm and the WG-300 for larger formats up to 300 mm, so the same proven platform can grow with the customer's range. Processors planning higher throughput can also scale the concept into a fully automatic packaging line with PLC control, 35-150 bags per minute or an automatic packaging line with premade pouch system. Training was also part of the delivery: local operators were trained on format changeover, cleaning procedures and daily maintenance, so the customer can run the line independently and keep changeover time low as new dried fruit products are added to the range.

Frequently Asked Questions

Can the WG-250 premade pouch packing machine handle sticky dried fruit such as sugared dried mango?

Yes. The WG-250 is equipped with anti-stick treated chutes, funnels and bucket surfaces, and the upstream elevator and combination weigher are matched to sticky products. In the Thailand project, dried mango, peach and strawberry slices ran without bridging or jamming during factory trials and passed on-site acceptance with the customer's own products. Anti-stick detailing is standard on dried fruit lines rather than an extra option.

Which bag types can this premade pouch packing machine run?

The machine runs flat bags, stand-up pouches, zipper bags, doypack pouches and composite film pouches. Bag length can reach 400 mm and bag width ranges from 130 to 260 mm, covering most retail dried fruit pouch sizes and giving one machine the flexibility to serve many products and bag styles. Changing between formats is done with adjustable bag guides and quick-change tooling, usually within a short changeover.

What packing speed and weighing accuracy does the line achieve?

The WG-250 reaches up to 70 bags per minute with eight work stations. Paired with a multi-head combination weigher, the line doses each pouch close to the target net weight, minimising giveaway of expensive dried fruit while keeping output high enough for commercial production. Actual speed depends on product stickiness, piece size and pouch format, and is verified during the factory trial before the order is confirmed.

Can one machine run many different products and bag sizes without long changeovers?

Yes. Adjustable bag guides, quick-change tooling and servo-driven motion control make format changes fast and simple. The Thailand customer runs dozens of dried fruit products in flat, stand-up and zipper pouches, switching between SKUs on the same WG-250 with minimal downtime. Operators are trained on changeover procedures during commissioning, so production planning stays flexible without sacrificing line efficiency.

Do you supply the complete line including sorting, elevating and weighing equipment?

Yes, we deliver turnkey projects. The manual sorting line, large-angle inclined elevator, multi-head combination weigher and premade pouch packing machine can be supplied and integrated as one solution, with factory trials, installation, commissioning and acceptance support included in the scope. We also provide operator training, spare parts documentation and after-sales service, so the customer has a single accountable partner for the whole dried fruit packaging line.

Can overseas customers run trials before ordering, and how is acceptance handled?

Yes. Overseas customers are welcome to visit our Shanghai factory for live trials with their own products, exactly as the Thai customer did in May. After delivery, our engineers commission the line on site and run acceptance tests with the customer's products before final handover. This trial-first approach lets buyers verify speed, accuracy and anti-stick performance on real product before committing to the full investment.

Conclusion

The Thailand dried fruit project demonstrates how a premade pouch packing machine can turn sticky, irregular dried fruit into clean, accurate, high-speed packaging that meets export standards. By combining a manual sorting line, a large-angle inclined elevator, a multi-head combination weigher and the WG-250, the customer now packages dried mango, dried peach and dried strawberry - together with many other products - in multiple bag formats on a single line that passed acceptance successfully. The May factory trial proved the concept; the completed project proves the execution. For dried fruit processors in Thailand and across Southeast Asia, this proven approach is available today without the risk of untested machinery. For buyers, the lesson is simple: verify the machine with your own product before you buy, and choose a supplier who engineers the details that make sticky, irregular dried fruit run smoothly at commercial speed.

Would you like to test your own dried fruit on the WG-250? Contact our team to arrange a factory trial, request a quotation, or discuss a complete food-grade stand-up pouch filling machine line tailored to your products and bag types.