NP-40 Four-Sided Sealed Spiral Powder Packaging Machine

A vertical four-side sealed packaging machine built for accurate, high-speed powder filling — soy milk powder, flour, coffee, milk tea powder, seasoning powder and similar fine-to-granular materials. The spiral (screw) metering system gives it the precision that pouch and sachet lines for food and light-pharma products need, and every bag length is set and cut in real time, with no test-run film wasted while you dial it in.

30–100

bags / min

±1%

filling precision

25–120mm

bag width

220V · 1.5kW

power draw

Built for accuracy, run after run

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Stepper-motor film pulling

A precise mechanical transmission sets and cuts bag length in real time — no empty-run adjustment, so you save both time and film.

✓

Siemens PLC & touch screen (Germany)

Full Chinese/English menu, can be localized further on request. Parameter setup is built to be fast and intuitive for operators.

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Photoelectric colour-mark tracking

A high-precision eye keeps sealing and cutting positions accurate on printed film, bag after bag.

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Independent PID temperature control

Each seal zone is controlled separately, so the machine adapts to different film coatings without manual re-tuning.

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Fault self-diagnosis

Problems surface on-screen immediately, cutting troubleshooting and maintenance time.

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304 stainless steel, tool-free cleaning

The material box and screw are food-grade stainless and disassemble by hand — no tools needed between batches.

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Adjustable screw & height wheel

Screw accessories swap out to suit ultra-fine powder through small particles; a hand wheel adjusts overall machine height.

Technical specifications

Model	NP-40 — Four-Sided Sealed Spiral Powder Packaging Machine
Packing speed	30–100 bags / min
Bag size	Width 25–120 mm · Length 50–160 mm
Packing weight	Customized to product
Filling precision	≤ ±1%
Air consumption	≤ 0.01 m³/min
Voltage / power	220V · 1.5 kW
Dimensions (L×W×H)	1300 × 960 × 1700 mm
Gross weight	300 kg
Bag style	Roll film back-sealed bag, striped or tooth-cut
Suitable materials	Soy milk powder, flour, walnut powder, milk tea powder, coffee powder, seasoning powder and similar

Inside the metering system

A servo-driven measuring auger and a pneumatic leak-proof valve meter each dose, while a separate mixing motor keeps material flowing evenly into the hopper — the combination behind the machine’s ±1% accuracy.

NP-40 metering auger, servo motor and hopper diagram

Optional accessory — stainless steel vibratory hopper

Stainless steel vibratory feeding hopper

Feeds powder into the machine at a steady, vibration-controlled rate — useful for materials that clump or bridge in a plain hopper. Ask us to add it to your quote.

Trusted components

Part	Brand	Origin
Touch screen & PLC	Siemens	Germany
Frequency converter	Siemens	Germany
Switching power supply	Schneider Electric	France
Solid state relay & contactor	Schneider Electric	Germany
Circuit breaker	Omron	Japan
Linear motor & relay	AirTAC	Taiwan
Mould	Hard alloy	Taiwan
Body material	304 stainless steel	China