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More consistent label placement
Labeling Machines
PLB833 Automatic Double-Side Corner Tamper-Evident Labeling Machine
Automatic Security Sticker Labeling Solution for Cosmetic Boxes, Hanging Boxes and Cartons
Note: Technical specifications are for reference. Final performance depends on package dimensions, label specifications and machine configuration.
About us
Product Introduction
The PLB833 Automatic Double-Side Corner Tamper-Evident Labeling Machine applies self-adhesive security labels across the edges and corners of boxes. A dual-head labeling system with dedicated folding mechanisms applies labels to the upper surface and folds the remaining section over the box edge.
This creates a tamper-evident seal that helps show whether the package has been opened. The PLB833 is suitable for cosmetic boxes, hanging paper boxes, electronics packaging and other cartons that require automatic corner sealing or anti-tamper sticker application.
PLB833
Why Use a Tamper-Evident Corner Labeler?
For many cosmetics, electronics and retail products, ordinary top labeling does not show whether the box has been opened. A corner security label solves this by bridging two adjacent package surfaces.
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Higher production efficiency
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Lower labor requirements
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Better package appearance
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More reliable security-seal positioning
PLB833
Suitable Products
Suitable packages include folding cartons, paper boxes, hanging boxes, cosmetic cartons, electronics packaging and small retail boxes. Standard label size: 15–250 mm long × 15–150 mm wide.
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Cosmetic boxes
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Perfume boxes
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Skincare packaging
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Hanging paper boxes
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Electronics boxes
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Small appliance packaging
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Pharmaceutical cartons
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Personal-care product boxes
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Retail cartons
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Other compatible rectangular packages
PLB833
Application Industries
Product size is customized according to the application — box dimensions should always be confirmed before quotation and machine production.
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Cosmetics
Cosmetic boxes, skincare packaging, perfume boxes and personal-care cartons.
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Electronics
Electronic product boxes, accessories packaging and small electronics cartons.
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Pharmaceutical and Healthcare
Can be used for compatible cartons requiring tamper-evident security labeling.
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General Retail Products
Suitable for hanging boxes, folding cartons and other rectangular retail packages.
PLB833
Key Features
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Double Labeling Head Design
The PLB833 is equipped with two labeling heads. These labeling units apply stickers to the upper surface of the products before the labels are folded around the package edges. The dual-head structure allows the machine to handle double-side corner labeling in one automatic process.
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Tamper-Evident Corner Folding
A dedicated folding mechanism bends the extended part of the label from the top surface down onto the side of the box. This creates an anti-tamper seal across the package edge, especially useful for products that require visible evidence if the carton has been opened.
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Adjustable Folding Height
The working height of the folding structure can be adjusted according to the package. This makes the machine suitable for different carton heights and labeling positions.
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Label Smoothing Brushes
Brushes help press the labels onto the box surface during application. This helps reduce trapped air and label bubbles, improve adhesion and improve finished package appearance.
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PLC and Touchscreen Control
The machine uses PLC control together with a digital touchscreen interface. Operators can monitor machine status and adjust production settings more conveniently. The interface language can also be customized according to customer requirements.
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Centralized Adjustment Structure
The adjustment components are grouped together to simplify machine setup. This makes it easier to change the labeling position when switching between different products. Proper adjustment also helps maintain labeling accuracy.
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Adjustable Label Sensor
The label sensor detects labels automatically and controls label separation. Sensor sensitivity can be adjusted according to different label materials. This helps maintain stable label dispensing during production.
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High Labeling Accuracy
The standard labeling accuracy is approximately ±1 mm. This specification excludes errors caused by inconsistencies in the product or label itself. Product dimensional variation and inconsistent label cutting can affect the final labeling result.
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30–60 Pieces per Minute
The standard labeling speed is approximately 30–60 pcs/min. Actual production speed depends on box dimensions, label size, labeling position, product spacing, folding distance and product consistency.
About us
How It Works
Products are transported automatically to the labeling station. The labeling heads dispense self-adhesive labels onto the upper surface of the package. A dedicated folding structure then presses the excess section of the label over the box edge and onto the side surface.
This creates a corner seal that can act as a tamper-evident closure. The machine can perform corner security labeling continuously as products pass through the conveyor.
PLB833
Working Process
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Product Feeding
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Product Positioning
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Label Detection
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Top Label Application
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Edge Folding
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Side Label Pressing
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Finished Package Output
About us
Tamper-Evident Labeling Structure
The main advantage of the PLB833 is its ability to convert a standard self-adhesive sticker into a security closure. The label is first applied to the top of the carton. The folding mechanism then wraps the unused portion of the sticker across the edge and presses it onto the side.
Once the package is opened, the seal is normally disturbed or broken, providing visible evidence of opening. For higher accuracy requirements, actual package and label samples are recommended before production.
PLB833
What Affects Labeling Speed
The standard labeling speed is approximately 30–60 pcs/min. Actual production capacity depends on the package and labeling requirements; larger labels or longer folding distances may reduce the final output.
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Box dimensions
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Label size
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Labeling position
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Product spacing
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Folding distance
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Product consistency
About us
Label Detection & Adjustment
The label sensor detects labels automatically and controls label separation. Sensor sensitivity can be adjusted according to different label materials, helping maintain stable label dispensing during production.
The adjustment components are grouped together to simplify machine setup. This makes it easier to change the labeling position when switching between different products, and proper adjustment helps maintain labeling accuracy.
PLB833
Optional Configurations
What's included: main labeling machine, conveyor system, dual labeling heads, label dispensing system, corner folding structures, label smoothing brushes, PLC control system, touchscreen control panel, label detection sensors, centralized adjustment structure.
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Customized product guides
Product guides can be customized according to the package.
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Customized folding structures
Folding structures can be customized according to the package, including special fixtures for non-standard cartons.
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Different label sizes
Different label sizes are available according to the package and required tamper-evident folding area.
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Different labeling positions
Different labeling positions can be set according to the application.
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Customized conveyor dimensions
Conveyor dimensions can be customized according to production requirements.
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Customized touchscreen language
The touchscreen language can be customized according to customer requirements.
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Coding or printing equipment
Coding or printing equipment can be added according to the application.
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Upstream and downstream line integration
The machine can be integrated into a production line with upstream and downstream equipment.
PLB833
Connectable Equipment
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Cartoning machine
Upstream of the PLB833.
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Product feeding conveyor
Upstream of the PLB833.
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Box forming equipment
Upstream of the PLB833.
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Inspection conveyor
Upstream of the PLB833.
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Coding machine
Downstream of the PLB833.
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Vision inspection system
Downstream of the PLB833.
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Collection conveyor
Downstream of the PLB833.
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Carton packing machine
Downstream of the PLB833.
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Case packing equipment
Downstream of the PLB833.
PLB833 in Operation
Watch the PLB833 automatic double-side corner tamper-evident labeling machine in operation.
Frequently Asked Questions
PLB833
Need Help Configuring the PLB833 for Your Carton?
Share your box size, label size, required labeling position and corner folding direction. PACKGENIX can review the carton and labeling requirements and recommend the appropriate folding structure and optional configuration.