PRECISION ROAST / Selection / CLASS AND APPLICATION
CALIBRATIONON MEASUREMENT
A mechanical sieve size graders divides the grain into physical fractions, and it answers the question "does the grain pass through the hole" rather than "what color is it?"
The specification begins with the distribution of the real batch by size and required output fractions. The configuration of the sieves, their number, area, product movement and feed stability determine the result together; the nominal size of the hole without the test does not describe the purity of the separation.
FEED / SINGLE LAYER
SENSOR OR SCREEN
REJECTS / SIZE GRADES
01/fitting
Measurable outcomes
obtaining one or more dimensional fractions
geometry
Preparing a more homogeneous batch before the next process
01B/limit
What to confirm before ordering
specify the size and shape of the holes for each fraction
check the number of sieves, outputs and convenience of changing the configuration
agree on the supply, aspiration and permissible drop height
measure the transition of suitable grains to neighboring fractions
02/workflow
Check the flow from the input batch to each particle fraction
01dose
02sieve
03skip
04exit
05weigh up
03/engineering
From measurable defect to testable specification
01
Identify the product through fractions
Instead of a general "sort coffee" query, set the dimensional class boundaries, the desired mass of each exit, and the allowable intercontamination, the sample should reflect the seasonal and supply spread, otherwise the selected grid will be tuned to one convenient lot.
factionalism
mass-out
passable
02
Read the entire screen configuration
The size of the hole works together with its shape, usable area, number of decks and type of movement. Specify which sieves are included, how many exits are actually available, and how long it takes to replace and reassemble safely.
geometry
number
replacement
03
Don't overload the surface
With excessive feeding, the grain forms a layer and does not get the same chance to pass through the hole, so the declared kg / h is checked at the correct purity of the fractions, at working tilt, amplitude or rotation, and at stable loading, rather than on an empty run.
thickness
traffic
kg/h at predetermined purity
04
Design cleaning and exits
The sieves should be available for inspection for clogging and damage, each particle fraction requires a separate receiver or transporter, and the dust requires coordinated aspiration, check the unload height, the rest when changing the batch and safe access to the drives.
blockage control
particle fraction
aspiration
04/sources and evidence
What is confirmed and what else needs to be checked
The selection includes listings with a normalized screen principle. The number of sieves, configuration and output fractions are shown only where they are disclosed in the source.
02
Flow range
A very wide declared range is not carried over into the project without conditions. Performance is checked on your grid, batch and required purity of separation.
03
Boundary of method
The sieve confirms geometric separation: removal by color, shape or composition can only be attributed to a machine with direct proof of another appropriate mechanism.
01CATALOGUE/SUPPLIER DATA
Real models for this task
Listings are selected only from normalized validated fields, and this is a list of candidates for technical verification, not a quality rating or a recommendation to buy.
A candidate for sieve-type is documented, but the normalized data does not specify the coffee stage. Request a test using your product and written confirmation of the application by criteria: size.
Editorial guideline PRECISION ROAST, compiled only according to the approved principle, the stage of coffee and the criteria for use; not the manufacturer's statement.
The principle of sorting
Screen-based
Principle at source
size
Coffee stage
Not specified
Stage at source
coffee beans, nuts
Sorting criteria
Size
Criteria at source
size
Throughput
500–500 kg/h
Sensor technology
Not specified
Camera
Not specified
Channels / chutes
Not specified
Screen configuration
The direct product title and structured attributes explicitly identify coffee-bean size grading, a linear vibrating screen, model HL-SFJ-500 and 500 kg/h capacity. Image URLs were not retained; image rights were not assessed.
Number of screens
Not specified
Output size grades
Not specified
System of rejection
Not specified
Precision
Not specified
Feed type
Not specified
Air requirements
Not specified
Power
400 W
Voltage
220 V
Dimensions
1570 x 780 x 1520 mm
Weight
85 kg
Operators
Not specified
MOQ
1 set
Type of price
fixed
Evidence note
The direct product title and structured attributes explicitly identify coffee-bean size grading, a linear vibrating screen, model HL-SFJ-500 and 500 kg/h capacity. Image URLs were not retained; image rights were not assessed.
Declared range at the time of verification
CZK 61,988.36 on the localized indexed direct card; one-set minimum. No currency conversion was applied.
An editorial candidate for sieve-type: roasted coffee by criteria: size. Before selecting it, verify actual throughput, sorting quality and losses using your batch.
Editorial guideline PRECISION ROAST, compiled only according to the approved principle, the stage of coffee and the criteria for use; not the manufacturer's statement.
The principle of sorting
Screen-based
Principle at source
size
Coffee stage
Roasted coffee
Stage at source
roasted coffee beans
Sorting criteria
Size
Criteria at source
size
Throughput
100–20000 kg/h
Sensor technology
Not specified
Camera
Not specified
Channels / chutes
Not specified
Screen configuration
The direct title explicitly identifies roasted-coffee-bean size sorting. The structured card describes a 1-5-layer rotary vibrating screen with 2-500 mesh and 100 kg-20 tons/hour capacity; no selected model, model-specific dimensions or power are exposed. Image URLs were not retained; image rights were not assessed.
Number of screens
Not specified
Output size grades
Not specified
System of rejection
Not specified
Precision
Not specified
Feed type
Not specified
Air requirements
Not specified
Power
Not specified
Voltage
220 V, 380 V, 415 V or 450 V
Dimensions
Not specified
Weight
300 kg
Operators
Not specified
MOQ
1 set
Type of price
range
Evidence note
The direct title explicitly identifies roasted-coffee-bean size sorting. The structured card describes a 1-5-layer rotary vibrating screen with 2-500 mesh and 100 kg-20 tons/hour capacity; no selected model, model-specific dimensions or power are exposed. Image URLs were not retained; image rights were not assessed.
Declared range at the time of verification
US$2,580 for one set, US$2,480 for 2-4 sets, and US$1,880 for 5 or more sets.
Xianfeng Coffee Beans Linear Vibrating Screening Sieve Machine
Model
Not specified
Supplier
Xinxiang Xianfeng Vibration Machinery Co., Ltd.
Type of seller
Custom Manufacturer
Suitable applications
A candidate for sieve-type is documented, but the normalized data does not specify the coffee stage. Request a test using your product and written confirmation of the application by criteria: size.
Editorial guideline PRECISION ROAST, compiled only according to the approved principle, the stage of coffee and the criteria for use; not the manufacturer's statement.
The principle of sorting
Screen-based
Principle at source
grading
Coffee stage
Not specified
Stage at source
coffee beans
Sorting criteria
Size
Criteria at source
grading
Throughput
10–10000 kg/h
Sensor technology
Not specified
Camera
Not specified
Channels / chutes
Not specified
Screen configuration
The direct title and structured product-name field explicitly identify a coffee-bean linear vibrating sieve. The supplier description states that single or multiple decks can grade materials; capacity was converted from 10 kg-10 tons/hour. The page lists an XFZ model family but exposes no selected model or model-specific power/dimensions. Image URLs were not retained; image rights were not assessed.
Number of screens
Not specified
Output size grades
Not specified
System of rejection
Not specified
Precision
Not specified
Feed type
Not specified
Air requirements
Not specified
Power
Not specified
Voltage
220 V or 380 V
Dimensions
Not specified
Weight
800 kg
Operators
Not specified
MOQ
1 set
Type of price
range
Evidence note
The direct title and structured product-name field explicitly identify a coffee-bean linear vibrating sieve. The supplier description states that single or multiple decks can grade materials; capacity was converted from 10 kg-10 tons/hour. The page lists an XFZ model family but exposes no selected model or model-specific power/dimensions. Image URLs were not retained; image rights were not assessed.
Declared range at the time of verification
US$4,285 for 1-2 sets; US$3,800 for 3 or more sets.
YongQing XZS800-3 Rotary Green Coffee Bean Size Grader
Model
XZS800-3
Supplier
Xinxiang Yongqing Screen Machine Co., Ltd.
Type of seller
Not specified
Suitable applications
An editorial candidate for sieve-type: green coffee by criteria: size. Before selecting it, verify actual throughput, sorting quality and losses using your batch.
Editorial guideline PRECISION ROAST, compiled only according to the approved principle, the stage of coffee and the criteria for use; not the manufacturer's statement.
The principle of sorting
Screen-based
Principle at source
size
Coffee stage
Green coffee
Stage at source
green coffee beans, cocoa beans
Sorting criteria
Size
Criteria at source
size
Throughput
800–800 kg/h
Sensor technology
Not specified
Camera
Not specified
Channels / chutes
Not specified
Screen configuration
The direct card resolves XZS800-3 and explicitly states green-coffee processing, grading coffee beans by size, three screen layers, 3/5/7 mm mesh examples and 800 kg/h capacity. Image URLs were not retained; image rights were not assessed.
Number of screens
Not specified
Output size grades
Not specified
System of rejection
Not specified
Precision
Not specified
Feed type
Not specified
Air requirements
Not specified
Power
0.55 kW
Voltage
Not specified
Dimensions
960 x 960 x 920 mm
Weight
280 kg
Operators
Not specified
MOQ
1 unit
Type of price
range
Evidence note
The direct card resolves XZS800-3 and explicitly states green-coffee processing, grading coffee beans by size, three screen layers, 3/5/7 mm mesh examples and 800 kg/h capacity. Image URLs were not retained; image rights were not assessed.
Declared range at the time of verification
US$3,500 for 1-9 units; US$3,200 for 10 or more units.
There are discrepancies in the listingvoltage: The structured voltage string is malformed and the supplier description gives a different generic option set, so voltage is left null. (220V/3080V/415N / 110V/220V/380V/440V etc.)
YongQing DZSF515 Linear Coffee Bean Sorting Machine with Three Size Screens
Model
DZSF515
Supplier
Xinxiang Yongqing Screen Machine Co., Ltd.
Type of seller
Not specified
Suitable applications
A candidate for sieve-type is documented, but the normalized data does not specify the coffee stage. Request a test using your product and written confirmation of the application by criteria: size.
Editorial guideline PRECISION ROAST, compiled only according to the approved principle, the stage of coffee and the criteria for use; not the manufacturer's statement.
The principle of sorting
Screen-based
Principle at source
size
Coffee stage
Not specified
Stage at source
coffee beans, cocoa beans
Sorting criteria
Size
Criteria at source
size
Throughput
500–500 kg/h
Sensor technology
Not specified
Camera
Not specified
Channels / chutes
Not specified
Screen configuration
The direct title and product field identify a coffee-bean sorter with three 3/5/7 mm size screens, four size fractions and 500 kg/h capacity. The function line separately names cocoa beans, so both explicit applications are retained. Image URLs were not retained; image rights were not assessed.
Number of screens
Not specified
Output size grades
Not specified
System of rejection
Not specified
Precision
Not specified
Feed type
Not specified
Air requirements
Not specified
Power
0.37 kW x 2
Voltage
380 V
Dimensions
Not specified
Weight
240 kg
Operators
Not specified
MOQ
1 set
Type of price
range
Evidence note
The direct title and product field identify a coffee-bean sorter with three 3/5/7 mm size screens, four size fractions and 500 kg/h capacity. The function line separately names cocoa beans, so both explicit applications are retained. Image URLs were not retained; image rights were not assessed.
Declared range at the time of verification
US$1,600 for 1-9 sets; US$1,500 for 10 or more sets.
There are discrepancies in the listingdimensions: Two incompatible dimension strings appear on the direct card, so dimensions is left null. (1600 x 600 x 960 mm / 1500 x 500 (third dimension and unit not stated))
yetinhon Linear Coffee and Cocoa Bean Cleaning and Grading Sieve
Model
Not specified
Supplier
Shenzhen Henghaoxiang Technology Ltd.
Type of seller
Not specified
Suitable applications
A candidate for sieve-type is documented, but the normalized data does not specify the coffee stage. Request a test using your product and written confirmation of the application by criteria: size · foreign material.
Editorial guideline PRECISION ROAST, compiled only according to the approved principle, the stage of coffee and the criteria for use; not the manufacturer's statement.
The principle of sorting
Screen-based
Principle at source
grading
Coffee stage
Not specified
Stage at source
coffee beans, cocoa beans
Sorting criteria
Size · Foreign material
Criteria at source
grading
Throughput
300–500 kg/h
Sensor technology
Not specified
Camera
Not specified
Channels / chutes
Not specified
Screen configuration
The direct title explicitly names coffee and cocoa beans; the card identifies a linear high-frequency vibrating screen for classification and impurity removal, 12-18 mesh and 300-500 kg/h production capacity. No selected model is exposed. Image URLs were not retained; image rights were not assessed.
Number of screens
Not specified
Output size grades
Not specified
System of rejection
Not specified
Precision
Not specified
Feed type
Not specified
Air requirements
Not specified
Power
Not specified
Voltage
220 V
Dimensions
1900 x 740 x 1520 mm
Weight
110 (unit not stated on the direct card)
Operators
Not specified
MOQ
1 dozen
Type of price
range
Evidence note
The direct title explicitly names coffee and cocoa beans; the card identifies a linear high-frequency vibrating screen for classification and impurity removal, 12-18 mesh and 300-500 kg/h production capacity. No selected model is exposed. Image URLs were not retained; image rights were not assessed.
Declared range at the time of verification
Displayed per dozen: US$2,500 for 1-4 dozens, US$2,450 for 5-9, and US$2,328 for 10 or more.
Are sieve sorters and size size graders the same thing?+
Within this section, yes: both terms describe mechanical separation through a sieve. A particular machine may have linear, vibratory, or rotational motion.
How many sieves do you need?+
This follows from the number of fractions and diagrams of the machine required. Ask for a flow map: which sieve forms each output and where the extreme large and small fractions fall.
Can I choose the holes according to the average grain size?+
You need a histogram or physical sifting of multiple batches, because the same average can hide different size distributions.
How to check the size graders performance?+
Measure the steady input flow and mass of each output, while checking the purity of the fractions. Load, clean and change the sieves separately in the shift release.
Check the sorting on your lot
Lock the input, each output, missed defect, false selection, steady pace, cleaning and line interfaces.
