Automatic Pillow Pouch Packing Machine With Film Back Feeding
SW-150
Horizontal flow wrap machine with rear-mounted film roll that feeds film over the product from above — purpose-built for sticky, soft, or delicate items that cannot slide on an under-film conveyor. Typical products include preserved fruit slices, hawthorn flakes, candied fruits, soft jelly candy, mochi, moon cake, fresh fruit and vegetable packs. Servo-driven film pull, PLC touch-screen control, SUS304 contact surfaces, 40–230 bags/min throughput.
Quality
CE Certified
Source
Factory Direct · Guangdong
Customization
OEM · Voltage · Language
After-Sales
2-Year Warranty · 24 h Support
SW-150: Film Back Feeding Flow Wrap for Sticky and Soft Products
The SW-150 is a horizontal flow wrap (pillow pouch) packing machine with a distinctive film path: the film roll is mounted at the rear of the machine and the film travels over the top of the product from above, rather than sliding underneath it. This "film back feeding" layout — sometimes called upper-film or rear-film horizontal flow pack — exists specifically for products that cannot be placed on an under-film conveyor without smearing, sticking, deforming, or losing their shape. Typical clients run preserved fruit slices, hawthorn flakes, candied fruits, soft jelly candy, fruit jelly sticks, mochi, moon cake, traditional Asian confectionery, fresh pre-cut fruit and vegetable packs, and soft bakery where the product is placed gently onto a belt and the film descends from above.
Compared with the under-film layout used on the SW-350B film beneath feeding machine, the SW-150 keeps the forming shoulder above the product path so nothing is dragged across a moving film surface. For operators loading hand-trimmed candied fruit or sliced persimmons by hand, this is the difference between clean pouches and constant smearing. The rest of the mechanical platform — servo-driven film pull, PLC touch-screen control, pneumatic end-seal jaws, SUS304 stainless steel contact surfaces — is shared across the ShengWei pillow machine family, so spare parts and operator training carry over from other ShengWei pillow models on the same factory floor.
The SW-150 is not a liquid filler and not a high-speed candy wrapper. For room-temperature liquid dosing into pillow pouches, use the SW-100 ice pop liquid pillow packing machine. For single-piece hard candy and gummy wrapping at up to 1,200 pieces/min, use the SW-1200 three-servo high-speed machine. For general solid product flow wrap (biscuits, bread, soap, pharmaceutical blisters, hardware) on a standard under-film conveyor, use the SW-350A/450A/550A multifunctional pillow packing machine.
Packing Speed
40–230 bags / min
Max Film Width
≤450 mm
Machine Weight
~600 kg
| Parameter | SW-150 |
|---|---|
| Product Length | 40–240 mm |
| Product Width | 80–200 mm |
| Product Height | 10–50 mm |
| Max Film Width | ≤450 mm |
| Packing Speed | 40–230 bags/min (depends on product size) |
| Bag Format | Pillow Pouch (horizontal flow wrap, fin seal back) |
| Film Path | Film Back Feeding (rear-mounted roll, film descends from above) |
| Control System | Touch Screen + PLC + Servo Motor |
| Sealing System | Fin seal back + end seal with pneumatic jaw pressure |
| Contact Material | SUS304 Stainless Steel |
| Film Material | OPP/CPP · OPP/PE · PET/PE · BOPP · Composite Heat-Seal Film |
| Power | 4.2 kW |
| Voltage | 220V 50/60 Hz (customizable) |
| Machine Weight | ~600 kg |
| Dimensions (L×W×H) | 3,920 × 870 × 1,320 mm |
Recommended Configurations by Product
Each scenario below shows a tested configuration with expected output. The SW-150 is optimized for products that cannot slide on an under-film conveyor without smearing, deforming, or sticking to the film. Contact us with your product shape, weight per pouch, film spec, and daily output target for a matching setup.
Preserved Fruit & Hawthorn Slices
Hawthorn flakes, dried persimmon, candied fruit, fruit jelly bars
- Model
- SW-150
- Feeding
- Manual placement on infeed belt (or chain conveyor)
- Speed
- ~150 bags/min (single piece per pouch)
- 8 h Output
- ≈ 72,000 pouches
- Clients
- Preserved fruit factories, traditional Chinese confectionery, hawthorn product brands
Soft Jelly Candy & Fruit Jelly
Jelly cups, jelly sticks, soft gummy bars, fruit jelly slices
- Model
- SW-150
- Feeding
- Hand placement or vibratory tray infeed
- Speed
- ~180 bags/min
- 8 h Output
- ≈ 86,400 pouches
- Clients
- Jelly candy factories, fruit confectionery OEM, soft candy brands
Fresh Produce & Pre-Cut Fruit
Cucumber, apple slices, kiwi, banana, mango, pre-cut vegetable trays
- Model
- SW-150
- Feeding
- Hand placement on conveyor — film wraps from above
- Speed
- ~120 bags/min (depends on product shape)
- 8 h Output
- ≈ 57,600 pouches
- Clients
- Fresh produce co-packers, supermarket private-label suppliers, fruit processors
Mochi, Moon Cake & Soft Bakery
Mochi, red-bean cake, moon cake, soft rice cake, traditional pastries
- Model
- SW-150
- Feeding
- Tray placement by hand or by automatic sorter
- Speed
- ~100 bags/min (delicate product handling)
- 8 h Output
- ≈ 48,000 pouches
- Clients
- Asian bakery producers, mochi and rice-cake factories, moon cake co-packers
The SW-150 handles solid or semi-solid products only. For room-temperature liquid into pillow pouches (ice pop, sugar water, jelly solution), see the SW-100 liquid pillow machine. For high-speed candy wrapping at 1,000+ pieces/min, see the SW-1000A candy tray machine or the SW-1200 three-servo machine. For rigid product (biscuits, bread, soap, hardware) on an under-film conveyor, see the SW-350A multifunctional pillow machine.
Output Pouch Type: Pillow Pouch with Fin Seal Back
The SW-150 produces a single pouch format — a horizontal pillow pouch (also called a flow pack pouch or fin seal pouch). Film unwinds from the rear roll and descends from above onto the product path. A heated fin-seal wheel joins the two film edges along the underside of the tube, forming a back seal, while end-seal jaws close the front and rear of each pouch around the product. No pre-formed bag supply is required — the machine forms the pouch directly from rollstock film as each product passes through.
Preserved fruit & jelly slices — single-piece pillow pouch
Pillow Pouch (Standard Output)
Fin Seal / Back Seal Pouch
Compatible film: OPP/CPP · OPP/PE · PET/PE · BOPP · composite heat-seal film. Preserved fruit and jelly candy lines usually run OPP/CPP for cost, while fresh produce lines prefer PET/PE or composite films for higher barrier and shelf life. Send your film sample for sealing parameter confirmation before production.
Note: This machine does not produce stand-up pouches, zipper bags, or flat-bottom bags. For premade stand-up or zipper pouch packing, see the SW-D200 premade bag granule machine.
How the SW-150 Film Back Feeding Cycle Works
The full cycle — product infeed, film forming from above, fin seal back, end seal, cutoff, discharge — runs continuously. The key difference from a conventional under-film flow wrapper is the film path: film is never placed beneath the product, so soft, sticky, or wet items are never dragged across a moving film surface.
01
Product Infeed
Products are placed on the infeed conveyor one at a time — either by hand (most common for hawthorn slices, candied fruits, jelly cups, mochi, moon cake) or by a pre-synced chain conveyor for uniform items. Because the film has not yet arrived from above, the product sits on a clean belt surface and nothing is smeared, crushed, or dragged. Spacing between products is fixed by the belt flight or by operator pacing and determines the final pouch length on a 1:1 basis.
02
Film Descends & Forms Tube
The rollstock film unwinds from the rear-mounted shaft and passes over a forming shoulder that folds it into a tube descending from above onto the product path. The servo-driven film pull maintains exact print-mark registration so branded graphics, flavour names, barcodes, and best-before panels land in the correct position on every pouch. Because the film approaches from above, there is no contact between product and film until after the tube is formed — the root cause of smearing on under-film machines.
03
Fin Seal Back & End Seal
A heated fin-seal wheel joins the two film edges along the underside of the formed tube, creating the continuous back seal. As each product passes, pneumatic end-seal jaws close in front of and behind it to form the two cross seals that bracket the pouch. Jaw temperature, dwell time, and pressure are adjustable from the HMI touch screen, so the same machine handles thin OPP/CPP film for preserved fruit and heavier PET/PE for fresh produce without retooling.
04
Cutoff & Discharge
A cutoff knife built into the end-seal jaw set separates each finished pouch from the next. An optional date coder prints batch and expiry data on the seal, and finished pouches discharge onto the outfeed conveyor for manual collection, weight check, or feed into a downstream case packer. The HMI stores product recipes so switching between preserved fruit, soft jelly, mochi, and fresh produce runs takes only a recipe recall and a minor belt adjustment.
Video
Four Core Mechanisms Built for Back Feeding Flow Wrap
The SW-150 is built around four mechanical systems that together determine its suitability for soft, sticky, and delicate products. Understanding each one helps you specify the right configuration for preserved fruit, jelly candy, fresh produce, or soft bakery production.
① Touch Screen Control
A colour HMI displays packing speed, sealing temperature, pouch length, end-seal dwell time, and fault codes on a single screen. Product recipes can be saved and recalled in seconds — no manual re-tuning when switching between preserved fruit, soft jelly, and fresh produce runs. Language and unit settings are configurable at the time of order.
② Rear-Mounted Roll Film Shaft
The rear film shaft positions the full rollstock supply behind the forming shoulder, so film descends from above onto the product path. This is the defining feature of the machine — it eliminates the film-on-conveyor layout that causes smearing on sticky products. Film tension is maintained by a servo-driven pull system that keeps the web flat and print registration exact even at full speed.
③ Gentle Material Handling
The infeed belt is sized and tensioned for hand placement — operators can place soft jelly cubes, hawthorn slices, and fresh fruit onto the belt without crushing them. Belt speed is matched to the film pull via a single servo drive, so product spacing and pouch length stay locked throughout the run. Chain conveyor and vibratory tray infeed options are available for automated feeding of uniform pieces.
④ Firm Sealing System
A heated fin-seal wheel forms the continuous back seal along the underside of the film tube, while pneumatic end-seal jaws close the front and rear of each pouch with adjustable pressure and dwell. Sealing temperature is independently controlled for top and bottom jaws so heat-sensitive films (BOPP, thin OPP/CPP) can run without burning, and heavier laminates (PET/PE, composite) can run without cold seals. A cutoff knife built into the jaw set separates each finished pouch cleanly.
Branded Components You Can Verify
Every critical electrical and pneumatic component on the SW-150 is sourced from established industrial brands. Part numbers are listed on the quotation sheet so you can verify pricing and availability independently before you order.
Siemens SMART 700 HMI
7-inch colour touch screen from Siemens stores all product recipes and exposes sealing temperature, film speed, pouch length, and fault codes on a single operator screen. HMI language configurable at order time.
Siemens S7-200 PLC
CPU224 industrial PLC coordinates servo drives, sealing heaters, and pneumatic jaws. Battery-backed memory retains recipes across power cycles. Spare parts are globally available — no proprietary lock-in.
Schneider Easy9 Breaker
Main and branch circuit breakers from Schneider Electric protect the 4.2 kW power supply, heating elements, and servo drives from overload and short-circuit faults. Common international brand — spare units stock worldwide.
AirTAC 4V210 Solenoid Valves
AirTAC pneumatic solenoid valves drive the end-seal jaw cylinders. Sub-10 ms response time ensures the jaws close in sync with film pull at full 230 bag/min speed. Low-cost replacement and proven long-term reliability.
SMC Guide Cylinder
Japan-brand SMC guide cylinders actuate the pneumatic end-seal jaws with consistent closing force and minimal side-play. High cycle life keeps the machine running through multi-million pouch production runs.
Omron Rotary Encoder
Omron E6B2-CWZ6C incremental encoder reads film feed position for print-mark registration. Keeps pouch length and branded graphic alignment locked to ±1 mm even on long production runs.
SW-150 vs Other Pillow Packing Machines — Which Do You Need?
Several ShengWei pillow packing machines share the same mechanical platform. The SW-150 is the only one with rear-mounted film — that one change in film path makes it the right choice for sticky, soft, or delicate products, and the wrong choice for most rigid items. Compare below before you order.
Choose SW-150 When:
- Your product is sticky, soft, moist, or delicate — hawthorn flakes, candied fruit, soft jelly, mochi, moon cake, fresh fruit and vegetable slices
- You need the film to descend from above instead of sliding under the product to avoid smearing, crushing, or deformation
- Pouches are formed on-demand from rollstock film (no premade bag supply)
- Speed target is moderate — 40–230 bags per minute (not high-speed single-piece candy wrapping)
- Your product fits within L 40–240 mm, W 80–200 mm, H 10–50 mm
- Film supply is OPP/CPP, OPP/PE, PET/PE, BOPP, or composite heat-seal film up to 450 mm wide
Choose SW-350A/450A/550A When:
- Your product is rigid and dry — biscuits, bread, soap, pharmaceutical blisters, hardware, stationery
- An under-film conveyor layout works fine (no sticky/soft material smearing)
- You need three model size options to cover a wider product length range up to 500 mm
- You prefer the more common flow wrap configuration for operator training and maintenance familiarity
When This Machine Is Not the Right Fit
The SW-150 wraps solid or semi-solid pieces only — it does not dose liquid, weigh granules, or meter powder. For room-temperature liquid into sealed pillow pouches (ice pop, sugar water, jelly solution), use the SW-100 liquid pillow packing machine. For high-speed single-piece hard candy or gummy wrapping at up to 1,200 pcs/min, use the SW-1200 three-servo machine. For small candies fed from a sorting tray into pillow pouches at up to 500 bags/min, use the SW-1000A candy tray machine. For twin-material candy lines, see the SW-1000B double material feeding machine. For the under-film (film beneath feeding) sibling that handles rigid product flow wrap, see the SW-350B film beneath feeding machine. For turntable-fed pillow packing lines, see the SW-300A turntable line and the SW-300B tidying feeding line. For granules weighed into vertical sachets, use the SW-420A collar type multi-head weigher machine. For premade granule stand-up pouches, vacuum bags, or liquid pouches, see the SW-D200 premade bag granule machine, SW-130ZK premade bag vacuum machine, and SW-Y200 premade bag liquid machine.
Why Choose ShengWei Machine
Factory Direct from Guangdong
Designed and manufactured in our own factory in Shantou, Guangdong. No trading companies, no middlemen — you work directly with the engineers who build your machine and will support it throughout its service life.
Built-to-Order Configuration
Voltage (220V, 50/60 Hz or 380V on request), HMI language (English, Spanish, Arabic, Russian, Portuguese, and more), infeed conveyor style, date coder add-on, and accessories are configurable per order. OEM branding available for distributors.
Lifetime Remote Support
Free remote video technical support for the life of the machine — not just the warranty period. Spare parts (sealing strips, heating elements, cutting blades, belt sections) ship from our factory within 3 working days. On-site installation available on request.
40+ Export Countries
ShengWei pillow packing machines are deployed in the UAE, Saudi Arabia, Nigeria, Mexico, Colombia, Indonesia, the Philippines, Vietnam, and 30+ additional markets across confectionery, preserved fruit, fresh produce, and traditional bakery applications.
What Our Clients Say
We run a preserved hawthorn flake and candied fruit line and we had constant smearing and fruit sticking to the film on our old under-film flow wrapper. We switched to the SW-150 because the film comes from above — the fruit slices sit on a clean belt and the film descends onto the product only at the sealing stage. Smearing is gone, the pouches look clean, and our reject rate dropped from about 4% to under 0.5%. Throughput at 160 bags per minute matches our hand-placement pace perfectly.
Li W.
Production Lead — Preserved Fruit Factory, China
We use the SW-150 for soft jelly candy and fruit jelly sticks. The rear film layout was the right choice for us because the jelly is soft enough to deform if we drag it on a film conveyor. Setup was straightforward and the ShengWei team walked us through sealing temperature settings for our OPP/CPP film over a video call. The machine runs full shifts without stopping and the operators can switch product recipes in under two minutes.
Jasmine T.
Operations Manager — Jelly Candy OEM, Malaysia
Frequently Asked Questions
What does "film back feeding" actually mean?
What products can the SW-150 pack?
How does the SW-150 compare with the SW-350B film beneath feeding machine?
What is the packing speed and what affects throughput?
What film materials are compatible?
What is the lead time and payment terms?
Can the voltage and HMI language be customized?
What warranty and after-sales support is included?
Can I send a product sample for a packing test before ordering?
What other pillow packing machines does ShengWei offer?
Expert Guides
What Is a Pillow Pouch Packing Machine?
How horizontal flow wrap machines work, what products they suit, and how they compare to vertical FFS and premade bag systems.
Read Guide →Film Back Feeding vs Film Beneath Feeding
Back feeding (SW-150) vs beneath feeding (SW-350B) — why the film path matters for sticky, soft, and delicate products, and when to choose each configuration.
Compare Models →How to Choose Between Horizontal and Vertical FFS
When a pillow packer makes sense vs a collar type VFFS machine — product shape, fill type, and throughput considerations explained.
Learn More →Other Pillow & Wrapping Machines
Different film paths and capacities for food product packaging.
Film Beneath Feeding Pillow Machine
Film-beneath-feeding pillow machine. Larger capacity with bottom film path for heavier products.
Multifunctional Pillow Pouch Machine
Multifunctional pillow pouch machine. Versatile top-film wrapper with wider bag size range.
Back Seal Vertical Granule Machine
Back seal vertical granule machine. VFFS format when vertical bag orientation is preferred.
Ready to Discuss the SW-150?
Send us your product type (preserved fruit, soft jelly, fresh produce, mochi, or other), target pouch size, film specification, and daily output target. We will confirm infeed configuration and sealing parameters and return a quotation within 24 hours.
info@shengweimachine.com · +86 181 2511 2025
