ELEVATING CHERRY SORTING TO A NEW LEVEL

GP Graders entered the cherry industry in 1985. With clients now in 18 countries, we pride ourselves as being the best manufacturer of cherry grading and packing machinery. Our machinery is used by most of the largest packing houses in countries including Chile, Canada, Turkey, Australia, Greece and the USA.

Our AirJet® electronic cherry graders are the most technologically advanced sorting machines available on the market today. This cutting-edge technology helps you to achieve the best possible returns for your fruit, by dramatically reducing sorting and packing costs and providing perfect size grading.

AirJet® Vision Technology

AIRJETTM CHERRY VISION

The AirJet® grader utilizes the best available German camera technology in the market today: AirJetTM Vision. AirJetTM Vision gives the sharpest picture resolution for size, color and defect analysis. B&W, color and NIR HD cameras capture 30 images of each rotating cherry for synchronized image analysis.

AirJetTM Vision features a 6 megapixel multispectral camera setup for each lane! We are taking up to 21,000 images of fruit every second equating to 1,890,000,000 (almost 2 billion) pixels per second. This is unprecedented in the analysis of fresh produce.

Airjet_Cherry_Vision

SIZE SEPARATION


The dimensions of each product are calculated using multiple images of the product. Specialized algorithms help to determine the orientation of the product to calculate the diameter, stem length, surface area and shape to separate doubles, spurs and stemless cherries.

Our software can measure up to 30 cherries per second!

COLOR SEPARATION

Our color module provides perfect color separation enabling you to select fine color grades, using live feedback from high-resolution cameras.

COLOR-SEPARATION-Cherry

DEFECT SORTING

Our cutting-edge technology allows you to achieve the best possible returns for your fruit. AirJet® cherry graders detect, internal defects including softness and bruising, external defects including cracks and wind rub.

defect1

Immature

defect2

Rot

defect3

Stem Crack

defect4

Split

defect5

Nose Crack

defect6

Bird or Insect damage

defect7

Trip Damage

defect8

Scarring/Rub Marks

defect9

Pitting

defect10

Brusing with skin damage

defect11

Spur

defect12

Overmature and Heat Damage

OUR MACHINERY

GP Graders provides a complete turn-key grading and packing solution, from bin and lug tippers through to cluster cutters, electronic grading machinery and a large range of packing options. Our range of machinery is designed and built with an emphasis on speed, accuracy and most importantly, gentle handling.

Delivery Method

Bin Tipper

Water delivery and elevation

 

Optional double cluster cutter

Cluster Cutter

 

Lug Tipper

GP Graders have re-invented the lug tipper and have thereby revolutionized the cherry industry. Simple, fast, and gentle. The problems of the old-style lug tippers have been eliminated with this brilliant new design from GP Graders.

Full lugs of cherries are loaded in rows of 2, 3 or 4 lugs depending on the width of the receival tank. Lugs are carried forward and clamped tight as they submerge into the receival tank for a gentle, zero impact release in water. Lugs are washed through water before being elevated, then released in unison onto a take away conveyor for re-palletizing the empty lugs.

GP Graders new lug tipper is so simple and unproblematic it will stand as the new benchmark for the cherry industry.

Bin Tipper

GP Graders’ 360˚ electric bin tipper is the best available method on the market for tipping full bins of cherries into a grading line. The 360˚ “paddle wheel” style tipper causes no damage to cherries and is the most productive and safest delivery method of any alternative tipping method in the market today. Our electric bin tipper is a heavy duty unit which is smooth and quiet in its operation, totally reliable and is simple and safe to use.

The 360˚ electric bin tipper has a de-stacking, tipping and re-stacking cycle time of less than 60 seconds, equating to more than 10 ton per hour.

Receival Tanks & Elevators

Our receival tanks are manufactured with heavy gauge, stainless steel, which makes them hygienic and highly durable. Easy drainage is achieved with a sloping floor and is fitted with an access door to facilitate easy cleaning. Finally, the walls of the tank are paneled with thick insulation sheets.

Cherries are transported from the receival tank by the variable speed elevator. The elevator runs along the floor of the tank and inclines at a 45° angle. The plastic conveyor belt has flights to maintain an even distribution of cherries up the elevator and maximize its load capacity.Carefully considered elevation angles, complimented with a soft brush as cherries breach the water level, means no “roll-backs” of fruit.

Cluster Cutter

The Cluster Cutter is our unique singulating conveyor designed to separate bunched cherries and to singulate them by cutting the stalk prior to sizing.

With the aid of flumed water, cherries are conveyed over GP Graders' special grooved belt, which features staggered rows of recessed plastic fingers. These guide the stalk under the high-speed rotating blade of the cluster cutter, which consists of pairs of half blades, bolted to hubs which are carefully located to align with the plastic guide fingers. The blades are constructed from hardened steel, and each tooth has been individually sharpened to ensure a long life and a clean cut. The cherries are fully protected from the saw blades, and do not come to any harm.

optional double cluster cutter

The Cluster Cutter is our unique singulating conveyor designed to separate bunched cherries and to singulate them by cutting the stalk prior to sizing.

With the aid of flumed water, cherries are conveyed over GP Graders' special grooved belt, which features staggered rows of recessed plastic fingers. These guide the stalk under the high-speed rotating blade of the cluster cutter, which consists of pairs of half blades, bolted to hubs which are carefully located to align with the plastic guide fingers. The blades are constructed from hardened steel, and each tooth has been individually sharpened to ensure a long life and a clean cut. The cherries are fully protected from the saw blades, and do not come to any harm.

Small Fruit Eliminator

The Small Fruit Eliminator (SFE) removes under sized cherries and orchard waste. Undersized cherries and orchard waste falls between the electronically adjustable gap provided by the parallel sizing rollers to waste belts, then are transported to separate collection bins.

Appropriately sized cherries are transferred by water onto the metering belt. Our metering belt ensures an even spread of cherries across the belt in preparation for delivery to the singulators of the AirJet® grader. Importantly, our metering belt gives you an even load across each of the lanes of the AirJet® grader. Cherries are water flooded over highly polished aluminum rollers which have a glass-like finish. Outwardly rotating rollers have a machined step at the midpoint of the roller to separate orchard waste from undersized cherries.

AirJet® Grader

Our AirJet® Cherry Grader is at the forefront of the cherry machinery industry, as GP Graders are innovation and technology leaders. This is evident as GP Graders have been behind almost every innovation in the cherry machinery industry since 1987. The AirJet electronic cherry grader is the most technologically advanced sorting machine available today, and this cutting-edge technology helps you to achieve the best possible returns for your fruit, by dramatically reducing the sorting and packing costs, and providing perfect size grading.

Fast, gentle and accurate, GP Graders’ electronic AirJet® grader sorts cherries at a speed of 30.2 units per second, or 650kg per lane per hour yielding high productivity while maintaining grading accuracy.

Sorting Belts

Our unique and innovative sorting belts are manufactured in pairs to allow for a central belt for reject grade cherries. Roll-over steps are placed along the sorting belts, which overturn cherries to fully expose both sides of the fruit, allowing for a thorough inspection by staff. Belts are made of our blue, non-reflective material.

GP Graders sorting belts are also fitted with a water drainage tray underneath belts to keep flooring dry, and to drain water back to the central water storage system.

Carton Fillers

Electronic carton filling ensures consistent box weight accuracy and faster volume throughput. Electronic carton fillers are positioned at the end of each sorting belt, then cartons sit on a load cell platform where they are filled to a pre-programmed weight setting via an adjustable feed belt, or hopper, controlled by a touch screen LCD monitor. The feed belt stops feeding the carton when it reaches the set weight, and then weights are displayed and programmed on an elevated LCD screen for ease of viewing.

Auto Box Fillers

Our Cherry Auto Box Fillers fully automate the packing process for fresh cherries, packing them into 4.4lb and 11lb boxes, filling them to precise weights. As this completely removes the need for box-packing staff, our technology helps you to significantly cut down on costs.

Automatically fill 4.4lb and 11lb Euro boxes, as well as other boxes with or without Barry-Bag frames. Experience a more profitable season without the requirement for box filling staff.

 

Small fruit and waste removal

 

Sorting and Grading

 

Final inspection

Carton packing

Bag and carton packing

Lug Tiper

GP Graders have re-invented the lug tipper and have thereby revolutionized the cherry industry. Simple, fast, and gentle. The problems of the old-style lug tippers have been eliminated with this brilliant new design from GP Graders.

Full lugs of cherries are loaded in rows of 2, 3 or 4 lugs depending on the width of the receival tank. Lugs are carried forward and clamped tight as they submerge into the receival tank for a gentle, zero impact release in water. Lugs are washed through water before being elevated, then released in unison onto a take away conveyor for re-palletizing the empty lugs.

GP Graders new lug tipper is so simple and unproblematic it will stand as the new benchmark for the cherry industry.

Bin Tipper

GP Graders’ 360˚ electric bin tipper is the best available method on the market for tipping full bins of cherries into a grading line. The 360˚ “paddle wheel” style tipper causes no damage to cherries and is the most productive and safest delivery method of any alternative tipping method in the market today. Our electric bin tipper is a heavy duty unit which is smooth and quiet in its operation, totally reliable and is simple and safe to use.

The 360˚ electric bin tipper has a de-stacking, tipping and re-stacking cycle time of less than 60 seconds, equating to more than 10 ton per hour.

Receival Tanks & Elevators

Our receival tanks are manufactured with heavy gauge, stainless steel, which makes them hygienic and highly durable. Easy drainage is achieved with a sloping floor and is fitted with an access door to facilitate easy cleaning. Finally, the walls of the tank are paneled with thick insulation sheets.

Cherries are transported from the receival tank by the variable speed elevator. The elevator runs along the floor of the tank and inclines at a 45° angle. The plastic conveyor belt has flights to maintain an even distribution of cherries up the elevator and maximize its load capacity.Carefully considered elevation angles, complimented with a soft brush as cherries breach the water level, means no “roll-backs” of fruit.

Cluster Cutter

The Cluster Cutter is our unique singulating conveyor designed to separate bunched cherries and to singulate them by cutting the stalk prior to sizing.

With the aid of flumed water, cherries are conveyed over GP Graders' special grooved belt, which features staggered rows of recessed plastic fingers. These guide the stalk under the high-speed rotating blade of the cluster cutter, which consists of pairs of half blades, bolted to hubs which are carefully located to align with the plastic guide fingers. The blades are constructed from hardened steel, and each tooth has been individually sharpened to ensure a long life and a clean cut. The cherries are fully protected from the saw blades, and do not come to any harm.

Optional double cluster cutter

The Cluster Cutter is our unique singulating conveyor designed to separate bunched cherries and to singulate them by cutting the stalk prior to sizing.

With the aid of flumed water, cherries are conveyed over GP Graders' special grooved belt, which features staggered rows of recessed plastic fingers. These guide the stalk under the high-speed rotating blade of the cluster cutter, which consists of pairs of half blades, bolted to hubs which are carefully located to align with the plastic guide fingers. The blades are constructed from hardened steel, and each tooth has been individually sharpened to ensure a long life and a clean cut. The cherries are fully protected from the saw blades, and do not come to any harm.

Small Fruit Eliminator

The Small Fruit Eliminator (SFE) removes under sized cherries and orchard waste. Undersized cherries and orchard waste falls between the electronically adjustable gap provided by the parallel sizing rollers to waste belts, then are transported to separate collection bins.

Appropriately sized cherries are transferred by water onto the metering belt. Our metering belt ensures an even spread of cherries across the belt in preparation for delivery to the singulators of the AirJet® grader. Importantly, our metering belt gives you an even load across each of the lanes of the AirJet® grader. Cherries are water flooded over highly polished aluminum rollers which have a glass-like finish. Outwardly rotating rollers have a machined step at the midpoint of the roller to separate orchard waste from undersized cherries.

AirJet® Grader

Our AirJet® Cherry Grader is at the forefront of the cherry machinery industry, as GP Graders are innovation and technology leaders. This is evident as GP Graders have been behind almost every innovation in the cherry machinery industry since 1987. The AirJet electronic cherry grader is the most technologically advanced sorting machine available today, and this cutting-edge technology helps you to achieve the best possible returns for your fruit, by dramatically reducing the sorting and packing costs, and providing perfect size grading.

Fast, gentle and accurate, GP Graders’ electronic AirJet® grader sorts cherries at a speed of 30.2 units per second, or 650kg per lane per hour yielding high productivity while maintaining grading accuracy.

Sorting Belts

Our unique and innovative sorting belts are manufactured in pairs to allow for a central belt for reject grade cherries. Roll-over steps are placed along the sorting belts, which overturn cherries to fully expose both sides of the fruit, allowing for a thorough inspection by staff. Belts are made of our blue, non-reflective material.

GP Graders sorting belts are also fitted with a water drainage tray underneath belts to keep flooring dry, and to drain water back to the central water storage system.

Carton Fillers

Electronic carton filling ensures consistent box weight accuracy and faster volume throughput. Electronic carton fillers are positioned at the end of each sorting belt, then cartons sit on a load cell platform where they are filled to a pre-programmed weight setting via an adjustable feed belt, or hopper, controlled by a touch screen LCD monitor. The feed belt stops feeding the carton when it reaches the set weight, and then weights are displayed and programmed on an elevated LCD screen for ease of viewing.

Auto Box Fillers

Our Cherry Auto Box Fillers fully automate the packing process for fresh cherries, packing them into 4.4lb and 11lb boxes, filling them to precise weights. As this completely removes the need for box-packing staff, our technology helps you to significantly cut down on costs.

Automatically fill 4.4lb and 11lb Euro boxes, as well as other boxes with or without Barry-Bag frames. Experience a more profitable season without the requirement for box filling staff.

WHY CHOOSE GP GRADERS' CHERRY GRADING MACHINERY?

superior technology
SUPERIOR TECHNOLOGY
Sorts cherries by color, size, shape and defects for greater market prices and reduced sorting costs.
fast
FAST
Each lane moves at speeds of up to 30.2 units per second allowing high productivity while maintaining grading accuracy.
gentle
GENTLE
So that your product retains its high quality and high value.
accurate
ACCURATE
97% sizing accuracy and 100% accurate color separation.
remove defects
REMOVES DEFECTS
Identifies over 80% of defects including cracks and softness.
cost effective
COST EFFECTIVE
Reducing the number of inspection staff required by up to 60% and therefore lowering your overheads.

Improve your cherry sorting and packaging operations today. Contact GP Graders to learn more about our world-leading grading and packing solutions.

OUR MACHINES IN ACTION