Product Introduction

The Open Mouth Packaging Machine is an industrial-grade automated solution specifically engineered for precision packaging of granular materials like rice, wheat, corn, and other agricultural products into 10kg–20kg woven polypropylene (PP) bags.     Designed for high-volume production environments, this machine integrates advanced weighing technology (±0.2% accuracy), pneumatic bag handling, and PLC-controlled automation to achieve speeds of 30–60 bags per minute.     Its stainless-steel construction ensures durability, while modular options allow customization for diverse grain types and bag specifications.

Technical Specifications

Bag Capacity: 10kg–20kg (expandable to 50kg with reinforced components).

Weighing System: Load-cell-based with automatic zero calibration;     tolerance of ±10g per 20kg bag.

Power Requirements: 380V, 10–15kW power consumption (energy-saving mode reduces idle draw by 15%).

Operational Speed: 30–60 bags/minute (adjustable via touchscreen for fragile grains).

Material Compatibility: 304 stainless steel contact parts; optional food-grade coatings for organic products.

Control Interface: 10" touchscreen with multi-language support (English/Spanish/Russian);real-time production analytics.

Application Scenarios

Agriculture: Bulk packaging of rice, wheat, and coarse grains (anti-static auger prevents particle adhesion).

Food Processing: Flour, sugar, and powdered seasonings (optional nitrogen flushing extends shelf life).

Animal Feed: Pelletized feed with high-fill consistency (vibration-assisted compaction reduces bag settling).

Export Operations: Compatible with standardized 20kg grain bags for international shipping.

Operational Guidelines

Setup & Calibration

Installation:

Level the machine on a vibration-damped concrete base.     Connect to 0.6MPa compressed air and 380V power.

Mount the bag clamp assembly and adjust jaw pressure to 0.5MPa for secure gripping without tearing.

Calibration:

Use test weights (e.g., 20kg certified) to calibrate load cells via the "Auto-Zero" function on the touchscreen

Production Workflow

Automatic Mode:

Empty bags are fed onto the conveyor → Infrared sensors trigger filling → Twin-screw auger delivers precise volumes (fast + fine phases).

Filled bags proceed to stitching/sealing station → Checkweigher verifies compliance → Rejects outliers via pneumatic diverter.

Manual Override:

Emergency stop button halts operations;     PLC logs fault codes for diagnostics.

Maintenance Protocols

• Daily: Clean residual grain dust from augers and sensors using food-safe compressed air.

• Weekly: Inspect stitching heads for wear;     replace needles every 50,000 cycles.

• Monthly: Re-grease pneumatic cylinders and validate load-cell accuracy with test weights.

Troubleshooting & FAQs

Common Operational Issues

Inconsistent Fill Weight:

Cause: Auger blockage or sensor interference from grain dust.

Solution: Clean hopper interior;     recalibrate with 20kg reference weight.

Bag Jams at Conveyor:

Cause: Misaligned clamps or excessive bag thickness.

Solution: Adjust clamp spacing to 350–605mm (per bag width);     reduce speed for thick-walled bags.

Stitching Defects:

Cause: Dull needles or thread tension imbalance.

Solution: Replace needles (model #NH-4);     adjust tension to 20–30N via side panel.

Frequently Asked Questions

Q1: Can it handle 25kg bags if upgraded?

Yes, with reinforced auger motors (3kW → 5kW) and dual load-cell support.

Q2: Is the machine compliant with EU food safety standards?

All stainless-steel parts meet EC 1935/2004;     request EU Declaration of Conformity from supplier.

Q3: How to integrate with existing bag palletizers?

Ethernet/IP protocol enables synchronization with most robotic palletizing systems.

Q4: What’s the expected service life?

10+ years for structural components;     2–3 years for wear parts (augers, sensors).

Conclusion

This Open Mouth Packaging Machine combines precision, scalability, and industrial robustness for grain packaging operations.Optional add-ons like checkweighers and dust collectors further enhance efficiency.