Oem Automatic Egg Grader Machine For Sale

OEM Automatic Egg Grader Machine for Sale

This equipment sorts eggs by weight and size using precision load‑cell sensors and a programmable logic controller, directing each egg to the appropriate lane for further processing or packaging.

Technical Specifications

Parameter	Typical Value
Throughput	Up to 30,000 eggs/hour
Weight Grading Range	30 g – 80 g (±0.5 g)
Size Detection	Length 45 mm – 65 mm (±0.2 mm)
Power Consumption	2.2 kW (3‑phase, 380 V)
Machine Dimensions (L×W×H)	2200 mm × 900 mm × 1500 mm
Net Weight	650 kg
Construction Material	AISI 304 stainless steel (food grade)

Working Principle

Eggs are fed singly onto a vibrating conveyor that transports them to a weighing station. Load‑cell sensors capture the instantaneous weight, which the PLC compares against predefined grade thresholds. Based on the result, pneumatic diverters actuate to route each egg into one of five output channels corresponding to weight classes.

Key Features

Adjustable grade settings via touchscreen interface, allowing rapid change‑over between different egg sizes.
Self‑diagnostic module logs sensor drift and alerts maintenance staff before accuracy deviates beyond ±0.3 g.
Modular lane design enables addition or removal of grading channels without mechanical re‑alignment.
Low‑friction polyurethane rollers reduce egg breakage to less than 0.02 % per cycle.
IP65 rated electrical enclosure protects against dust and water spray in wet processing environments.

Applications

In large‑scale egg processing plants, consistent weight grading directly influences downstream operations such as carton filling, where over‑ or under‑weight eggs cause packaging line jams and giveaway. By delivering uniform lots, the grader reduces giveaway by approximately 1.5 % and improves carton seal integrity, which is critical for retailers requiring tight weight tolerances.

Customization Options

Number of grading lanes: configurable from 3 to 8 based on required throughput.
Sensor type: optional laser displacement sensors for simultaneous length and width measurement.
Outlet chutes: available in food‑grade PVC or stainless steel to match plant sanitation standards.
Control interface: can be integrated with existing MES via OPC-UA or Modbus TCP.
Extras: built‑in UV sterilization module for surface treatment prior to grading.

Quality Control & Testing

Each unit undergoes a factory acceptance test where 5,000 eggs of known weight are processed; the system must maintain a grading accuracy of ±0.5 g for 99.5 % of samples. Vibration analysis is performed on the conveyor to ensure resonance frequencies stay below 12 Hz, minimizing mechanical wear. Final inspection includes a 30‑minute run‑at‑full‑load to verify temperature rise of drive motors remains under 40 °C.

Packaging & Shipping

The machine is disassembled into three main sub‑assemblies (frame, conveyor‑sensor module, control cabinet) and secured on a steel pallet with VCI corrosion inhibitor film. Each pallet is strapped and wrapped in 200 µm stretch film, then placed inside a 20 ft container with shock‑absorbing plywood bracing. Export shipments include a detailed packing list, CE declaration, and an optional third‑party inspection certificate upon request.

Frequently Asked Questions

Q: Can the grading lanes be added after installation?
A: Yes, the modular lane design allows field installation of additional channels using the same mounting brackets and control signals.
Q: What information is required before quotation?
A: Required inputs include desired eggs‑per‑hour, weight range, number of grades, facility power supply voltage, and any special material certifications.
Q: How is quality inspected during production?
A: Each assembled unit undergoes weight‑accuracy testing, vibration analysis, and a full‑load thermal run before packaging.