ZB500N Automatic Internal-Pumping Brick Vacuum Packaging Machine for Granules, Coffee Beans, Nuts and Grains
The ZB500N is a fully automatic horizontal vacuum packaging machine designed for granular products such as coffee beans, nuts, peanuts, grains, frozen food and pet food. It uses an internal pumping vacuum system: air is drawn out from inside the bag before sealing, producing a rigid, six-sided brick-shaped vacuum bag that is oxygen-free, compact and shelf-stable.
Integrated with a multihead weigher or volumetric cup filler, the line automatically completes bag pickup, filling, internal vacuum pumping, heat sealing, bag shaping, coding and output. The result is a premium retail-ready brick bag that stacks neatly, protects aroma and freshness, and reduces shipping volume by up to 40% compared with pillow bags.
Built with a food-grade stainless steel frame, fully enclosed glass safety guards and a Siemens PLC + Panasonic servo system, the ZB500N delivers stable, high-vacuum performance for coffee roasters, nut processors and grain exporters
1. Application
Industry: coffee roasting, nut processing, grain / rice milling, frozen food, pet food, dried fruit.
Suitable products: coffee beans, roasted nuts, peanuts, cashews, almonds, rice, beans, grains, frozen dumplings, pet food, dried fruit, granola.
Suitable bags: six-sided brick-type vacuum bags, aluminum foil vacuum bags, laminated foil bricks.
2. Main Features
Internal pumping vacuum (内抽式): vacuum is drawn inside the bag before sealing, achieving a deeper, more uniform vacuum than external suction.
Six-sided brick shaping: after vacuuming, the bag is pressed into a rigid rectangular block — stacks perfectly, premium look.
Multihead weigher dosing (optional cup filler): accurate weighing for granules, ±0.5–1 g.
Fully automatic cycle: bag pickup → filling → internal vacuum → heat seal → shape → code → output.
Siemens PLC + Siemens touch screen, Panasonic servo drives, AirTAC pneumatics, Omron temperature control, Schneider electrics.
Fully enclosed glass guards with interlock switches — machine stops when a door opens.
Ribbon coder prints production date and batch number (up to 3 lines).
Vacuum level adjustable on the HMI for different products.
3. Technical Parameters
表格
Item Specification
Model ZB500N (Granule Version)
Bag type Six-sided brick vacuum bag
Bag weight 100 g – 1 kg (adjustable; up to 2.5 kg on request)
Speed 10–20 bags/min (varies by bag size and product)
Vacuum chamber 760 × 450 × 500 mm
Vacuum degree up to -0.095 MPa
Power AC 380 V, 50 Hz, ~20 kW
Air supply 0.7 MPa, 1.1 m³/min
Machine size ~8800 × 3800 × 4080 mm
4. Optional Configurations
10 / 14 / 16-head multihead weigher (for different product densities).
Screw auger filler (switch to powder version).
Nitrogen back-flushing after vacuum (for extra-long shelf life).
Vacuum pump upgrade for deeper vacuum.
Metal detector and check weigher.
Z-type bucket elevator / vacuum conveyor.
5. Why Brick Vacuum Packaging for Granules?
Keeps coffee beans fresh — no oxidation, no staleness, aroma locked in.
Moisture and pest proof — critical for nuts and grains shipped overseas.
40% smaller storage footprint — bricks stack flat, no air gaps.
Premium retail shelf appeal — gold/silver foil bricks look far better than pillow bags.
6. After-Sales
12-month warranty, lifetime technical support.
English manual and operating video.
Engineer on-site installation and training available.
Wooden export packing.
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