Product Overview

The Automatic Open Mouth Packaging  Machine for Beans represents China's latest innovation in agricultural processing technology.  Designed specifically for legumes (soybeans, kidney beans, chickpeas), this PLC-controlled system achieves 200-300 bags/hour with ±0.2% weighing accuracy through its patented dual-stage auger filling mechanism.  The stainless steel construction (SUS304) ensures compliance with global food safety standards while resisting abrasion from continuous bean flow.

Technical Specifications

Core Components:

Weighing System: Load cells with 50,000-cycle calibration stability (IP67-rated against dust ingress)

Filling Mechanism: Bottom-up vertical auger (Ø200mm) prevents bean damage, reducing breakage to<0.5%

Sealing Options:

Heat sealing (150-200°C adjustable) for poly-lined bags

Stitch sealing (12-15 stitches/sec) for woven PP bags

Dust Control: Integrated cyclone separator with 98% filtration efficiency (3000m³/hr capacity)

Performance Metrics:

Power: 10kW (380V) with 15% energy recovery during idle cycles

Air Consumption: 0.6MPa @ 20m³/hour for pneumatic clamps

Dimensions: 4.8m(L)×1.1m(W)×2.6m(H) footprint for factory floor optimization

Application Scenarios

Commercial Bean Processing

Packaging dried soybeans/black beans in 25kg food-grade woven bags (FDA/CE compliant)

Optional nitrogen flushing extends shelf-life by reducing oxygen to<1%

Agricultural Cooperatives

High-moisture environments (up to 85% RH) supported with hydrophobic filters

Interchangeable hoppers handle bean varieties from 5-12mm diameter

Export Operations

Compatible with ISO-standard container loading (palletizer integration available)

Multi-language interface (EN/ES/AR) for overseas technician training

Operational Protocol

Pre-Operation Checklist:

Conduct load cell verification using 25kg test weights

Inspect auger flights for bean residue (clean with food-grade lubricant if clogged)

Confirm bag clamp pressure (0.4-0.6MPa for woven polypropylene)

Production Cycle:

• Stage 1: Infrared sensor detects bag position → Pneumatic clamp secures mouth

• Stage 2: Primary auger fills 80% capacity at 12kg/sec → Secondary auger completes fill (±50g tolerance)

• Stage 3: Auto-trimming of excess bag material → Stitching/heat sealing activates

Maintenance Schedule:

Daily: Clean dust filters with compressed air

Weekly: Lubricate auger bearings (NSF H1-certified grease)

Annually: Replace wear plates on bag clamps

Troubleshooting Guide

Symptom: Incomplete seals

Cause 1: Bean dust contamination on heating element

Solution: Activate self-cleaning mode (5-minute 250°C burn-off cycle)

Cause 2: Uneven bag thickness

Solution: Adjust clamp pressure differential (±0.1MPa between jaws)

Symptom: Weight fluctuations >1%

Root Cause: Vibration interference from adjacent equipment

Solution: Install anti-vibration pads (50mm neoprene recommended)

Symptom: Auger jamming

Preventive Measure: Install metal detector upstream (sensitivity: Ø2mm ferrous particles)

Frequently Asked Questions

Q1: Can it package mixed bean varieties?

Yes, with optional color sorters and dual-hopper systems (additional 2.2kW power requirement)

Q2: What's the ROI timeframe?

Typical payback in 14 months at 8-hour/day operation (vs manual labor)

Q3: How to handle irregularly shaped beans?

Specialized low-friction auger liners (UHMW-PE material) prevent crushing

Q4: Is IoT connectivity supported?

Modbus RTU protocol enables real-time production monitoring via SCADA systems

Q5: Warranty coverage?

2 years on electrical components, lifetime support for structural frame