Horizontal HFFS Bottom Web Packaging Machine for Biscuit, Bread & Fragile Products
Engineered for high-speed, precision pouch and bag production across a wide range of flexible packaging applications. It delivers film widths from Max. 240mm up to Max. 790mm, bag-making speeds of 5–25 m/min, and consistent sealing quality controlled by PLC with bilingual (Chinese/English) HMI. Ideal for food packaging, pharmaceutical pouches, daily chemical sachets, and industrial flexible bag production lines.
Product Overview
The Keypack Intelligent (kunbupack) WS Series HFFS Bottom Machine is a fully automatic, PLC-controlled bag-forming system designed to convert roll film into finished flat bags, stand-up pouches, or gusseted bags with high dimensional accuracy and stable sealing performance. The series covers four main models — WS-250XDSF, WS-250XBSF, WS-350XDSF, WS-350XBSF, WS-450XDSF, and WS-800XDSF — offering scalable solutions from compact mid-width lines to wide-format, high-output production. Each machine features servo-driven film feeding, dual or single knife cutting, and a robust steel frame construction for long-term industrial use. The bilingual PLC touchscreen interface enables easy parameter setting, fault diagnosis, and production monitoring, reducing operator training time and downtime.
Product Specifications
-
WS-250 Series
- Film Width: Max. 240mm
- Bag Length: Dual knife ≥90mm (XD) / ≥65mm (XB); Single knife ≥150mm (XD) / ≥130mm (XB)
- Bag Width: 30–110mm
- Film Roll Diameter: Max. 320mm
- Product Height: Max. 60mm (XD) / Max. 40mm (XB)
- Speed: 5–25 m/min (subject to actual conditions)
- Power: 2.0 KW | Voltage: AC 220V 50Hz
- Weight: 450 KG | Dimensions: L3527 × W665 × H1400mm
-
WS-350 Series
- Film Width: Max. 340mm
- Bag Length: Dual knife ≥90mm (XD) / ≥65mm (XB); Single knife ≥150mm (XD) / ≥120mm (XB)
- Bag Width: 50–160mm
- Film Roll Diameter: Max. 320mm
- Product Height: Max. 60mm (XD) / Max. 40mm (XB)
- Speed: 5–25 m/min (subject to actual conditions)
- Power: 2.4 KW | Voltage: AC 220V 50Hz
- Weight: 500 KG | Dimensions: L3527 × W760 × H1410mm
-
WS-450XD
- Film Width: Max. 440mm
- Bag Length: ≥150mm
- Bag Width: 80–200mm
- Film Roll Diameter: Max. 320mm
- Product Height: Max. 80mm
- Speed: 5–20 m/min (subject to actual conditions)
- Power: 2.8 KW | Voltage: AC 220V 50Hz
- Weight: 600 KG | Dimensions: L3718 × W845 × H1400mm
-
WS-800XD
- Film Width: Max. 790mm
- Bag Length: ≥180mm
- Bag Width: 100–370mm
- Film Roll Diameter: Max. 320mm
- Product Height: Max. 100mm
- Speed: 5–20 m/min (subject to actual conditions)
- Power: 3.2 KW | Voltage: AC 220V 50Hz
- Weight: 900 KG | Dimensions: L4230 × W1120 × H1765mm
-
Control System (All Models): PLC + Bilingual (Chinese/English) Touchscreen HMI
Key Features and Machine Characteristics
-
PLC Precision Control + Bilingual HMI: Servo-driven film feeding with PLC closed-loop control ensures ±1mm bag length accuracy; the bilingual touchscreen reduces operator error and shortens training cycles on the production floor.
-
Dual & Single Knife Cutting Options: Dual-knife configuration supports shorter minimum bag lengths (≥65mm), enabling high-density small-pouch production; single-knife mode suits standard and long-bag formats — both on the same machine platform.
-
Wide Film Width Coverage: From 240mm (WS-250) to 790mm (WS-800), the series covers narrow sachets to large flat bags without requiring a platform change, protecting your capital investment as product lines expand.
-
High-Speed, Stable Output: 5–25 m/min continuous bag-making speed (WS-250/350) with consistent sealing temperature and pressure, minimizing seal defect rates and reducing material waste on long production runs.
-
Compact Footprint, Heavy-Duty Frame: Welded steel frame construction with vibration-dampening design; the WS-250 occupies only L3527 × W665mm floor space, making it suitable for space-constrained packaging workshops.
-
Max. 320mm Film Roll Diameter (All Models): Standardized roll diameter across the entire series simplifies film sourcing, reduces changeover time, and supports compatibility with mainstream film suppliers.
Application Areas
-
Food Packaging: Snack food flat pouch sealing and cutting for chips, nuts, and dried fruit; coffee powder and milk powder sachet production with heat-seal laminated film; condiment and sauce single-serve pouch bag making; pet food flat bag forming for dry kibble and treats.
-
Pharmaceutical & Health Products: Medicine powder sachet bag making with precise dosing-compatible bag dimensions; health supplement single-serve pouch production; medical device accessory flat bag packaging requiring clean, consistent seals.
-
Daily Chemical & Personal Care: Shampoo, body wash, and detergent sachet bag forming from multi-layer laminated film; wet wipe pouch production; cosmetic sample sachet bag making for trial-size product lines.
-
Industrial & Agricultural: Seed packaging flat bag production for granular and powder seed materials; fertilizer and agrochemical small-quantity pouch bag making; hardware accessory flat bag forming for bolts, screws, and small parts.
-
Wide-Format Applications (WS-800): Large flat bag production for bedding, garment, and textile packaging; bulk food flat bag forming for rice, flour, and grain products up to 370mm bag width.
FAQs
Q1: What types of packaging film are compatible with this HFFS bottom web machine?
A: The WS Series supports a wide range of heat-sealable flexible films, including BOPP/CPP laminates, PET/PE laminates, aluminum foil composites, and paper/PE laminates. As long as the film is heat-sealable and within the specified film width (240mm–790mm depending on model), it can be processed on this machine.
Q2: Can the machine switch between dual-knife and single-knife cutting modes?
A: Yes. The WS-250 and WS-350 series are available in both dual-knife (XD) and single-knife (XB) configurations. The dual-knife mode enables shorter minimum bag lengths (as low as 65mm), ideal for small sachet production, while single-knife mode is suited for standard and longer bag formats — both options are available on the same machine platform.
Q3: How does the horizontal bottom-web (HFFS) design protect fragile products like biscuits and bread during packaging?
A: Unlike vertical form-fill-seal machines where products drop by gravity, the HFFS bottom-web design feeds products horizontally on a flat conveyor into pre-formed pouches. This eliminates impact from falling, significantly reducing breakage rates for fragile items such as biscuits, wafers, bread, and crackers. The gentle horizontal transfer also maintains product orientation and appearance inside the bag.
Q4: What is the actual production speed, and what factors affect it?
A: The rated speed is 5–25 m/min (WS-250/350) or 5–20 m/min (WS-450/800). Actual speed depends on several factors specific to HFFS bottom-web machines: film material thickness and heat-seal response time, bag length (shorter bags = more cuts per minute), product feeding synchronization speed, and ambient temperature affecting sealing stability. Under optimal conditions with standard laminated film and medium bag lengths, most users achieve 80–90% of rated speed in continuous production.
