oyster grader

Increase Productivity,
Create Free Time

oystek
Mini Hopper

Mini Hopper Oysters fall from the end of the inspection conveyor into the mini hopper, where the elevator picks them up and carries them into the singulator.

Elevator

Evenly spaced cleats transport oysters from the mini hopper into the singulator.

Singulation System

The singulator gently tumbles oysters and distributes them single file into the grader.

Jam Detector

This is a sensor that will automatically pause the machine if there happens to be a buildup of oysters.

Detector/ Imaging system

A custom designed 4-axis sensor array images the oysters and communicates size data to the control screen and motor column.

Control Screen

The control screen is an industrial touch screen panel PC - All program settings and operation of the grader is carried out using the control screen.

Output Chute

Oysters are directed into one of 8 output chutes by an internal J-curve, capable of repositioning more than 10 times every second

Compact
Compact Size
Portable
Portable Grader
Low Maintenance
Low Maintenance
download info pack
accurate

oystek grader

Accurate Oyster Measurement

The system measures oyster length in millimeters, counting and directing oysters to programmable output chutes. Data for each grading session can be saved and transferred. Our grading system is designed specifically for the oyster industry.
speed
Output Chute

Oysters are directed into one of 8 output chutes by an internal J-curve, capable of repositioning more than 10 times every second

Control Screen

The control screen is an industrial touch screen panel PC - All program settings and operation of the grader is carried out using the control screen.

oystek grader

Reliable Oyster Distribution System

Our proven distribution system has one moving part and can direct graded oysters to any of 8 programmable output chutes. Grade and count oysters directly into many types of oyster basket systems as well as into sales bags or buckets.

GET THE BENEFITS

Our proven distribution system has one moving part and can direct graded oysters to any of 8 programmable output chutes.
easy to use interface
compact size
low power
low labour cost

Easy to use interface

The User interface is easy to use, requiring little to no specific training. Grading schemes can be easily opened and used, or edited and saved. Creating a new grading scheme can be done in a few minutes. Adjustments to the grading scheme can also be made while in operation.

Compact Size

The Oystek Grader requires minimal floor space - Length 3.45m - Width 1.25m - Height 2.55m (grader, elevator and separator). (A complete setup in less than 4x4m - G5s+Ancillary conveyors and hopper)

Low Power

While the average power required by an Oystek G5 grader is less than 500 watts, the peak power requirement is much higher. Because of the low power requirement, it can be operated on a standalone solar power system or small AC generator. The grader does not need running water or compressed air. 

Low Labour Cost

The Oystek grader only requires a single person to operate, which means there are very minimal labour costs involved with running the grading machine.

g5S Grader

SPECIFICATIONS

Scan Type

Vision grader (4-axis scanner array)

Distribution

7+1 tubes (7 grade tubes, 1 reject tube)

Speed

Up to 10 oysters per second

Accuracy

Millimeter accuracy

Count

Accurately counts and stores data for each oyster

Dimensions

L3.45m W1.25m H2.55m (G5s, Singulator, Elevator)

Power

220V - 240V single phase AC 50-60Hz(Isolation transformer or non-RCD line required)
Average power less than 250watts

Materials

Food grade, Stainless steel constructionChassis/Frame

High strength ABS plasticsElectronics Housings

Ancillaries

We also offer a suite of compatible ancillary equipment (hopper, creep conveyor, sorting conveyor and power box) designed to work within a small area.

ROI Calculator
These are conservative estimates over a normalised period

2000

Graded By Hand


0h 0min

Graded by OYSTEK Grader


0h 0min
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67%

Oystek Ancillaries

Hopper Creep

The hopper holds large volumes of oysters, filtering them down onto the attached creep conveyor. The creep conveyor carries oysters from the hopper up to a working height. Conveyor height is adjustable, speed and start/stop functions are controllable on the power box. 

Comes standard with height-adjustable foot inserts and hard-wired motor cable. Optional castor wheels and disconnect cable are available.

Oystek Ancillaries

Sorting Conveyer / Power Box

The sorting conveyor takes oysters from the creep conveyor to the elevator, it is used to manually inspect product and remove foreign objects. Speed and start/stop functions are controllable on the power box, which is mounted to the sorting conveyor frame. 

Power box is mounted to the sorting conveyor frame. Comes standard with height-adjustable foot inserts. Optional castor wheels are available.

sort

Frequently Asked Questions

Still have questions about our Grader services. Please call us on 0409 244 434.
contact us
How much space is needed to set up the grading equipment?
L3.45m W1.25m H2.55m (G5s, Singulator, Elevator) 
G5s + ancillaries in U-shape is the smallest possible configuration (4x4m).
How much power does it use, can it run off solar?
Average power consumption is less than 500w. The system can run on solar, generator or mains power.
Do I need to wash my oysters?
While not required, it is best practice. Washing oysters before grading will typically increase accuracy, lower return rates and reduce grit build-up.
How often do I need to clean the grader?
Rinse with fresh water once per week. Wipe down with a lanolin dampened cloth once per month.
What technical support is provided?
Lifetime remote technical support. Call us if you have any issues and we’ll do our best to resolve them over the phone, or send a technician as quickly as possible.
Can the machine be easily moved?
The machine can be quickly moved by two people and transported off site if needed
What spare parts do I need?
There is no requirement for spare parts. It is advisable to keep some bearing grease and lanolin on hand for general maintenance.
What additional infrastructure and equipment is required?
An undercover area where the grader is protected from the elements and can be safely supplied with power. No additional infrastructure is required. The grader will perform better on a solid level surface.
What maintenance is required?
Washing grit and foreign objects from the product pathways. Applying a protective coat of lanolin to stainless steel.
What is included with the G5 grading system?
Includes G5s grader, Singulator and Elevator.