Product Introduction

The Open Mouth Corn Packing Machine 25kg is a specialized industrial packaging solution designed for efficient handling of granular agricultural products like corn, wheat, beans, and rice.   Engineered with gravity-fed filling technology and modular design, it achieves ±0.2% weighing accuracy at speeds of 15-40 bags/hour.   The machine's stainless-steel contact parts (SUS304) and IP65-rated electronics ensure durability in humid grain storage environments.

Technical Specifications

Capacity & Performance

• Bag weight range: 25-50kg (expandable to 2-ton bulk bags with optional modules)

• Weighing system: Load-cell sensors with dynamic compensation (German HBM or equivalent)

• Speed: 12-15 bags/minute (adjustable based on material density)

• Power: 380V, 8-15kW with energy-saving inverter drive

Mechanical Features

• Filling type: Gravity-fed with vibratory compaction (optional screw auger for sticky grains)

• Bag holder: Pneumatic clamp with 360° rotatable head for valve/open-mouth bags

• Sealing options: Heat-sealing (150-200°C) or stitching (industrial sewing head)

• Dust control: Integrated cyclone collector (3000m³/hr capacity)

Applications

Grain Processing

Ideal for corn, wheat, paddy rice, and soybean packing in agricultural cooperatives.   The anti-static design prevents grain dust explosions.

Seed Companies

Gentle handling preserves germination rates;   optional nitrogen flushing maintains seed viability.

Animal Feed Mills

Heavy-duty construction withstands abrasive feed additives like mineral premixes.

Operating Instructions

Installation Requirements

Floor space: Minimum 4×5m with 3m vertical clearance

Utilities: Compressed air (0.6MPa, 0.36m³/min) and three-phase power

Foundation: Concrete pad (200mm thickness) with vibration dampeners

Workflow Steps

Preparation

Mount empty bags on holder;   input target weight via multilingual touchscreen (EN/ES/RU/AR).

Filling Cycle

Stage 1: Rapid filling (90% capacity)

Stage 2: Precision dribble feed (±50g accuracy）

Auto-trimming removes excess material

Post-Packaging Conveyor transfers bags to palletizer;   data logs weight/time stamps via Ethernet.

Maintenance Protocol

Daily: Clean residual grains from hopper;   inspect seal integrity

Weekly: Lubricate conveyor bearings;   calibrate load cells

Annual: Replace wear parts (auger flights, sealing strips)

Troubleshooting Guide

Issue 1: Inconsistent Bag Weight

Root Cause: Material bridging in hopper or sensor drift

Solution: Activate vibrators;   recalibrate with test weights

Issue 2: Bag Misalignment

Root Cause: Loose clamp pressure or misadjusted guides

Solution: Reset pneumatic pressure to 0.5MPa;   realign infrared sensors

Issue 3: Excessive Dust

Root Cause: Filter clogging or negative pressure loss

Solution: Replace HEPA filters;   check fan RPM settings

Frequently Asked Questions

Q1: Can it pack moist corn (18-20% moisture content)?

Yes, with optional stainless-steel auger and dehumidifying hopper attachments.

Q2: What's the lead time for customization?

Standard models ship in 15 days;   customized units require 30-45 days.

Q3: How to integrate with existing bag sewing machines?

The conveyor's height/width is adjustable (530-750mm bag length compatibility).

Q4: Warranty coverage details?

1 year on electrical components;   3 years for structural frame.

Conclusion

This 25kg corn packing machine combines precision weighing with rugged construction for high-volume grain operations.   Its modular architecture allows future upgrades like robotic palletizers or IoT production monitoring.