Back Seal Granular Vertical Packing Machine
SW-2030A · Back Seal · Turntable Cup Feeder · Granule
Compact single-lane vertical form-fill-seal machine built for free-flowing granular products in back-seal sachets. The SW-2030A pairs a rotary turntable volumetric cup feeder with a back-seal forming tube to produce consistent-weight granule sachets at 60–100 bags per minute. Sugar, rice, seeds, coffee beans, tea leaf, nuts, spice granules, and desiccant — any free-flowing granule within the 25–140 mm bag width range. PLC touch screen control, SUS304 stainless steel contact surfaces, photoelectric film tracking, and a 220V single-phase power supply that draws only 1.8 kW.
Quality
CE Certified
Source
Factory Direct · Guangdong
Customization
OEM · Voltage · Language
After-Sales
2-Year Warranty · 24 h Support
SW-2030A: Single-Lane Turntable Cup Granule VFFS
The SW-2030A is a compact vertical form-fill-seal machine engineered for free-flowing granular products in back-seal sachets. Film feeds from a rear-mounted roll, wraps around a cylindrical forming tube, and is sealed with a longitudinal back seal and horizontal cross seals — producing a standard back-seal sachet widely used for single-serve sugar, seed, rice, nut, tea, and desiccant packaging.
The defining feature of the SW-2030A is its rotary turntable cup feeder. A stainless steel turntable carries a ring of measuring cups beneath the product hopper; each cup fills by gravity, travels to the forming tube opening, and tips its contents into the bag. Volumetric cup filling is the most cost-effective and reliable method for free-flowing granules — it handles products that would bridge or rat-hole in an auger screw system. The cup volume is adjustable by swapping cup inserts, and fill timing is programmable on the PLC touch screen for repeatable dose control across production runs.
The SW-2030A shares its mechanical platform with the SW-2030 series of small-sachet vertical machines. Where the SW-2030B uses an auger screw for powder, the SW-2030A replaces that with a turntable cup assembly optimized for granules. The base frame, film drive, sealing system, and control electronics are identical. If your product line includes both granular and powder products, the two machines can run side by side on the same production floor with a shared control architecture. For multi-lane stick pack production at higher output volumes, the SW-B10 ten-column back-seal machine runs 10 lanes simultaneously.
Max Speed
100 bags / min
Bag Width Range
25–140 mm
Power Consumption
1.8 kW
| Parameter | SW-2030A |
|---|---|
| Bag Length | 50–200 mm |
| Bag Width | 25–140 mm |
| Max Film Width | ≤300 mm |
| Packing Speed | 60–100 bags/min |
| Filling System | Rotary Turntable Volumetric Cup Feeder |
| Bag Format | Back Seal Sachet |
| Control System | PLC + Servo Motor + Touch Screen |
| Sealing System | Back seal (longitudinal) + Cross seal (horizontal) with adjustable temperature |
| Contact Material | SUS304 Stainless Steel |
| Film Material | OPP/CPP · OPP/PE · PET/PE · NYLON/PE · Aluminum Foil Laminate |
| Power | 1.8 kW |
| Voltage | 220V 50/60 Hz (customizable) |
| Machine Weight | ~300 kg |
| Dimensions (L×W×H) | 1,260 × 930 × 1,700 mm |
Recommended Configurations by Product
Each scenario below shows a tested configuration with expected output. The SW-2030A handles a wide range of free-flowing granular products. Contact us with your product type, target dose weight, and daily output requirement for a configuration recommendation.
Sugar & Sweetener Sachets
3–10 g white sugar, brown sugar, stevia granules
- Filler
- Turntable cup (small cup insert)
- Speed
- ~90 bags/min
- 8 h Output
- ≈ 43,200 bags
- Clients
- Hotels, cafés, airlines, sugar co-packers
Seeds, Rice & Small Nuts
10–50 g sunflower seeds, sesame, flax, chia, small peanuts
- Filler
- Turntable cup (medium cup insert)
- Speed
- ~70 bags/min
- 8 h Output
- ≈ 33,600 bags
- Clients
- Snack brands, seed processors, health food co-packers
Tea, Herb & Granular Spice
1–5 g loose leaf tea, herb flakes, black pepper, coarse salt
- Filler
- Turntable cup (light product cup)
- Speed
- ~90 bags/min
- 8 h Output
- ≈ 43,200 bags
- Clients
- Tea brands, spice co-packers, restaurant supply
Desiccant & Small Hardware
1–10 g silica gel, mol sieve, screws, washers
- Filler
- Turntable cup (precision small cup)
- Speed
- ~80 bags/min
- 8 h Output
- ≈ 38,400 bags
- Add-ons
- Aluminum foil film, date coder, counting sensor
The SW-2030A is designed for free-flowing granules in back-seal sachets up to 140 mm wide. For fine powder products in the same sachet format, see the SW-2030B auger powder machine. For larger granule bags or irregular products that need weighing, see the SW-420A/620A multi-head weigher collar type machine. For granules in premade pouches (stand-up, zip-lock), see the SW-D200 premade bag granule machine.
Output Bag Type: Back Seal Sachet
The SW-2030A produces back-seal sachets — also called pillow-type vertical sachets or centre-back-seal bags. Film wraps around the cylindrical forming tube, a longitudinal heat seal runs down the back of the bag, and horizontal cross seals close the top and bottom. This format is the most economical for single-serve granule sachets because it uses a single web of film with minimal waste. The back seal sachet is widely accepted across food, beverage, and industrial markets worldwide.
Sugar, seeds, tea, nuts — back seal sachet format
Back Seal Sachet (Standard Output)
3-Side Seal (Alternative — SW-1328)
Compatible film: OPP/CPP · OPP/PE · PET/PE · NYLON/PE · Aluminum Foil Laminate. Send your film sample for sealing parameter confirmation before production.
Note: The SW-2030A produces back-seal sachets only. For three-side-seal or four-side-seal sachets, ShengWei offers separate machines with interchangeable filling systems. For granules in premade stand-up pouches or zip-lock bags, see the SW-D200 premade bag granule machine. For vacuum-sealed food pouches, see the SW-130ZK premade bag vacuum machine.
How the Turntable Cup Granule Forming Cycle Works
The entire forming-filling-sealing cycle runs continuously. Each back-seal granule sachet is completed in under one second at full speed. The rotary turntable and photoelectric film tracking system maintain dose consistency and print registration throughout the production run.
01
Film Unwind & Tracking
Film unwinds from a roll mounted at the rear of the machine. A photoelectric sensor reads the registration mark on printed film and adjusts pull length in real time, ensuring every bag is cut at the correct position. The servo-driven film pull maintains consistent tension across the full speed range. Maximum film width is 300 mm, supporting bag widths from 25 mm to 140 mm.
02
Forming Tube & Back Seal
Film passes over a forming collar (shoulder) that wraps it around a cylindrical forming tube. The two film edges overlap along the back of the tube, where a heated seal bar creates a continuous longitudinal back seal. The forming tube diameter determines the bag width — different tube sizes are available for different sachet dimensions. Changing the forming tube takes approximately 10 minutes.
03
Turntable Cup Filling
Granules flow by gravity from the hopper into a ring of measuring cups on the rotating turntable. Each cup fills flush with the hopper outlet; a leveling bar sweeps excess product back into the hopper. The cup then travels to the forming tube opening and tips, dropping the measured dose into the bag below. Cup volume is adjustable by swapping inserts — a 5-minute toolless changeover between different fill weights.
04
Cross Seal & Cutting
Horizontal seal jaws close across the film tube below the filled granule, creating the bottom seal of the current bag and the top seal of the next bag simultaneously. A knife built into the jaw assembly cuts between the two seals to separate the finished sachet. Temperature, jaw pressure, and dwell time are all adjustable from the touch screen to suit different film types and bag weights. Finished sachets discharge onto a collection tray or downstream conveyor.
Gallery & Video
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SW-2030A close-up front view — turntable cup feeder, forming collar, and sealing station
Four Core Systems That Define the SW-2030A
The SW-2030A is built around four purpose-designed systems that differentiate it from auger-type powder machines and larger collar type VFFS equipment. Understanding these systems helps you evaluate whether this compact turntable cup granule machine fits your production requirements. For weighed granule accuracy on irregular products (mixed nuts, candy), the SW-420A/620A multi-head weigher collar type machine from the collar type packing machine family uses combination weighing for ±0.5 g accuracy.
① Rotary Turntable Cup Feeder
The core differentiator of the SW-2030A. A motorized turntable carries a ring of stainless steel measuring cups beneath the product hopper. Gravity fills each cup to a preset volume; a leveling bar sweeps excess product back into the hopper. The filled cup tips over the forming tube opening and drops the measured dose. Cup volume is adjustable by swapping inserts — a 5-minute toolless operation for changeover between different fill weights. Accuracy is ±2% for uniform free-flowing granules at speeds up to 100 bags per minute.
② PLC Touch Screen Control
A colour touch screen displays packing speed, cup cycle timing, sealing temperature, bag length, and fault codes on a single screen. Up to 20 product recipes can be saved and recalled for fast changeover between different SKUs. The PLC coordinates the turntable rotation, film pull, and seal jaw timing in real time. Language and unit settings are configurable at order — English, Spanish, Arabic, Russian, and other options available.
③ Compact Forming Tube Assembly
The cylindrical forming tube determines the bag width. Film wraps around the tube via a forming collar (shoulder), and the back seal bar runs along the tube's rear edge. Changing the forming tube to a different diameter — and with it the bag width — takes approximately 10 minutes. Each tube is precision-machined from SUS304 stainless steel and polished to food-grade finish. The compact assembly keeps the overall machine footprint under 1.2 m² of floor space.
④ Dual-Direction Heat Sealing
The SW-2030A uses two independent sealing systems: a longitudinal back seal bar for the continuous back seal, and horizontal cross-seal jaws for the top and bottom of each sachet. Temperature, pressure, and dwell time are independently adjustable for each sealing direction via the touch screen panel. This dual-system design allows you to optimize seal strength separately for the back seal (which must resist granule impact during filling) and the cross seals (which must cut cleanly between bags).
Branded Components You Can Verify
Every critical component on the SW-2030A 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.
Turntable Cup Feeder
Motorized SUS304 stainless steel turntable with interchangeable measuring cup inserts. Toolless cup changeover for fast transition between different fill weights.
Servo Film Pull Motor
Servo-driven film pull maintains consistent tension and bag length accuracy within ±1 mm. Motor parameters are stored in the PLC for instant recall on repeat jobs.
Cross Sealing Jaws
Heated horizontal jaws seal and cut each sachet in one motion. PID temperature control within ±1 °C across OPP/CPP, PET/PE, and aluminum foil laminate films.
Electrical Cabinet (Labeled)
Integrated electrical cabinet with labeled PLC, relays, motor drives, and circuit protection. Each component identified for easy service and parts replacement.
Vacuum Pump Motor
Dedicated vacuum pump motor provides suction for film handling and bag shaping during the forming cycle. Sealed bearing design for continuous production duty.
Siemens HMI Touch Screen
Industry-standard Siemens SMART 700 colour touch screen. Multi-language support, recipe storage for up to 20 products, and real-time fault diagnostics.
SW-2030A vs SW-2030B Auger Powder Machine — Which Do You Need?
Both machines share the same compact back-seal sachet platform. The key difference is the filling system: the SW-2030A uses a turntable cup feeder optimized for free-flowing granules, while the SW-2030B uses an auger screw optimized for fine powder.
Choose SW-2030A When:
- Your product is a free-flowing granule (sugar, rice, seeds, tea, coarse salt, nuts)
- Your dose weight is 1–50 g per sachet
- ±2% volumetric accuracy is acceptable for your product
- You need fast toolless changeover between different fill weights (cup swap)
- You want the most cost-effective vertical machine for granule sachet production
Choose SW-2030B Auger Powder Machine When:
- Your product is a fine powder (spice, coffee, flour, pharmaceutical powder)
- Powder would bridge or rat-hole in a volumetric cup system
- You need ±1–3% fill accuracy with servo-controlled dosing
- Your bag size range and format are the same (back-seal, 25–140 mm wide)
- You run both granule and powder lines — the two machines share a control architecture
When This Machine Is Not the Right Fit
The SW-2030A is designed for free-flowing granules in back-seal sachets only. For fine powder products, use the same-platform SW-2030B auger powder machine. For mixed-size or irregular granules (mixed nuts, candy, snack mix) that need weighing, use the SW-420A/620A multi-head weigher collar type machine — combination weighing achieves ±0.5 g accuracy. For granules in premade stand-up pouches or zip-lock bags, use the SW-D200 premade bag granule machine. For liquid products, the SW-420F collar type liquid machine is the correct choice. For multi-lane stick pack production at 200–300 bags/min, see the SW-B10 ten-column back-seal machine. For pyramid tea bags, see the SW-1022 triangle bag machine. For individual solid products in pillow pouches, see the pillow pouch packing machine family.
Why Choose ShengWei Machine
Factory Direct from Guangdong
Designed and manufactured in our own 8,000 m² factory in Shantou, Guangdong. No trading companies, no middlemen — you work directly with the engineers who build your machine. Factory visits welcome by appointment.
Built-to-Order Configuration
Voltage (220V, 50/60 Hz), HMI language (English, Spanish, Arabic, Russian, Portuguese, and more), cup insert sizes, forming tube diameter, and accessories are all configurable per order. OEM branding available for distributors and private label brands.
Lifetime Remote Support
Free remote video technical support for the life of the machine — not just the warranty period. Spare parts ship from our factory within 3 working days. On-site installation and operator training available on request.
40+ Export Countries
ShengWei machines are deployed in the UAE, Saudi Arabia, Nigeria, Mexico, Colombia, Indonesia, the Philippines, and 30+ additional markets across food, pharmaceutical, chemical, and agricultural industries.
What Our Clients Say
We run the SW-2030A on our sugar sachet line — 8 hours a day, 6 days a week. Cup changeover takes about 5 minutes and we switch between 5 g and 8 g fills throughout the day. The machine has been running for 14 months with no major maintenance beyond replacing the sealing heaters once. The price-to-performance ratio is much better than the European brands we evaluated before purchase. ShengWei shipped the machine with two spare cup sets at no extra cost, which covered our full product range from day one.
Ahmed R.
Production Manager — Sugar & Confectionery Co-Packer, Egypt
We package desiccant sachets for the electronics industry. The aluminum foil laminate film seals perfectly with no leaks — we tested 10,000 sachets and found zero seal failures in our QC batch. The PLC recipe storage lets us switch between 4 different desiccant weights without any tool changes, just touch screen recipe selection. ShengWei's after-sales team helped us calibrate the machine remotely via WeChat video when we first set up the line. They respond within a few hours on any technical question.
Lin Wei
Operations Manager — Industrial Packaging Solutions, Vietnam
Frequently Asked Questions
What granule products can the SW-2030A pack?
How accurate is the turntable cup filling?
What is the difference between the SW-2030A and the SW-2030B?
What fill weight range can the turntable cup feeder handle?
What film materials are compatible?
How do I change the bag size?
Can this machine pack powders or liquids?
What voltage and HMI language options are available?
What is the lead time and payment terms?
Can I send a product sample for a packing test?
Expert Guides
What Is a Vertical Form-Fill-Seal Machine?
How vertical FFS machines work, what bag formats they produce, and how they compare to premade bag systems and horizontal flow wrap machines.
Read Guide →Volumetric Cup vs Auger — Which Filling System?
When to use turntable cup filling for granules versus auger screw for powders. Product flow, particle size, and accuracy compared.
Compare Fillers →Back Seal vs 3-Side Seal vs 4-Side Seal Sachet
Film usage, seal strength, shelf appearance, and machine cost compared — how to choose the right sachet format for your granule product.
Learn More →Other Granule & Back Seal Machines
Same platform with different fillers, or different machine format for granule packing.
Back Seal Auger Powder Vertical Machine
Back seal auger powder vertical machine. Same platform with auger filler for powder products.
Back Seal Tipping Bucket Vertical Machine
Back seal tipping bucket vertical machine. Same platform with tipping bucket for irregularly shaped products.
Premade Bag Granule Packing Machine
Rotary premade bag granule machine. Uses pre-formed pouches for premium retail packaging of granule products.
Ready to Discuss the SW-2030A?
Send us your granule product, target sachet size, and daily output requirement. We will confirm the right cup insert and return a quotation within 24 hours.
info@shengweimachine.com · +86 181 2511 2025
