Automatic Case Packer – UBL High-Speed End-of-Line Carton Packing Machine

UBL automatic case packers deliver stable, high-precision fully automatic carton packing for diverse finished goods. Compatible with bottles, pouches, small inner cartons, cans, jars and plastic bags, we supply customized packing systems for food, beverage, pharmaceutical and daily chemical manufacturers.

  • Gripping, side-push and 3-in-1 erect-pack-seal integrated models available
  • Servo positioning system, stable 24-hour non-stop production
  • Robust carbon steel & stainless steel frame, long service life
  • Seamless connection with upstream & downstream automated packaging lines

Still Packing Products into Cases Manually?

Manual case packing may seem simple, but it often becomes the biggest obstacle to production efficiency, labor management and business growth. Here are the most common challenges manufacturers face every day.

End-of-Line Bottlenecks

When filling and primary packaging run faster than manual packing, finished products quickly accumulate at the end of the line, reducing overall production efficiency and delaying shipments.

Rising Labor Costs

Packing requires multiple operators, ongoing training and shift management. As production increases, labor expenses continue to grow while profitability declines.

Inconsistent Packing Quality

Manual packing often results in incorrect counts, poor product alignment, damaged cartons and inconsistent case quality, increasing customer complaints and transportation losses.

Worker Fatigue & Safety Risks

Continuous lifting, bending and repetitive movements lead to operator fatigue, workplace injuries and lower productivity throughout each shift.

Limited Production Capacity

Manual packing creates a fixed production ceiling. Expanding output often means hiring more workers instead of improving efficiency.

Difficult Production Planning

Because manual packing speed varies by operator and shift, production schedules become difficult to predict, affecting on-time delivery performance.

Provide your contact information, and we will contact you within 24 hours, along with providing our case packer catalog and pricing for your reference.

Core Technologies Behind UBL Case Packer Equipment

Siemens PLC Control System

Powered by a Siemens programmable logic controller (PLC) with high-speed data processing and strong anti-interference performance. The system delivers 99.5% operational reliability, supports real-time fault self-diagnosis, and ensures stable non-stop 24/7 production.

Full Servo-Driven Motion System

All core motions (grabbing, pushing, lifting, positioning) are driven by high-precision servo motors. It achieves ±0.15mm repeat positioning accuracy with smooth, gentle product handling, keeping product damage rate below 0.05‰ — ideal for fragile food containers, glass jars and soft pouches.

Heavy-Duty Industrial Frame

Reinforced carbon steel main frame with precision welding and anti-corrosion powder coating; all food-contact parts are made of 304 stainless steel. The rigid structure eliminates vibration at high running speeds, extends service life, and fully meets food industry hygiene requirements.

3-in-1 Integrated Compact Design

Integrates carton erecting, product packing and carton sealing into a single workstation. It saves over 40% of factory floor space compared with separate machines, removes intermediate conveying steps, and lowers total end-of-line investment cost.

 

Intuitive HMI Operation

Color touch screen human-machine interface with multi-language support. Features one-click parameter setting, real-time production data monitoring and clear fault code prompts. Even untrained operators can master it quickly, reducing skill requirements for frontline workers.

UBL Machine Types

Carton Opening & Packing 3-in-1 Workstation

    The UBL fully automatic carton packing workstation integrates carton erecting, product loading and case sealing into one compact unit, delivering seamless unmanned packaging flow for mass production lines.
 
    This all-in-one carton packing machine eliminates repetitive manual box erecting, filling and taping work. It is widely adopted for e-commerce fulfillment, daily goods, food, cosmetics, hardware and textile apparel industries. The equipment can handle flat blank cartons, automatically open and shape empty boxes, convey goods into cartons, then fold box lids and complete tape sealing in one cycle.
 
     Equipped with a high-precision servo drive system and touchscreen HMI, the machine stores preset sizes for fast format switching to cut downtime drastically. Its heavy-duty welded frame ensures stable long-hour operation. It supports flexible line integration: connect upstream carton folding machines, filling equipment, or downstream real-time printing labeling machines and palletizing robots to build a full automatic packaging production line.
UBL fully automatic 3-in-1 carton erecting, packing and sealing workstation, all-in-one end-of-line case packer with integrated carton erector and sealer
Multi-Carton Size Compatibility
  • Supports regular RSC shipping cartons, mailer boxes, snap lock bottom cartons, tuck end gift boxes.
  • Applicable size range: 400×250×200mm, fully customizable to match your actual box dimensions.
  • Automatically erects flat blank cartons, shapes empty standing boxes without manual adjustment.
  • Perfect for e-commerce warehousing, food & beverage, cosmetic skincare, textile garments, hardware accessories, toys, daily consumer goods packaging.
  • Suitable for both single-layer flat goods and bulk semi-full carton packing, meets online retail and factory mass production demands.
  • Carton erecting: Auto feed flat cartons, open, fold and shape empty boxes
  • Product packing: Convey goods into cartons to reach standard filling level
  • Case sealing: Pre-fold box lids, apply transparent tape to finish sealed cartons
    Fully unmanned operation, only requires size parameter setup on touchscreen.

Full servo motor drive for stable, low-noise, high-speed running, packing speed 1–6 cartons per minute.

Intuitive touchscreen HMI saves multiple box presets for quick size changeover.

Modular design allows front-end connection with box folding machines, back-end docking with printing labeling machines and palletizing robots.

HL-ZX02 Side Push Carton Packing Machine

UBL HL-ZX02 side push carton packing machine adopts horizontal side push feeding design, perfectly matching pre-opened bottom-sealed shipping cartons. It realizes automatic inner box sorting, layered stacking and side push loading into outer cartons, with auto carton flipping and finished box discharging.
 
Equipped with dual independent conveying lines for synchronous product feeding, the machine greatly saves labor and improves packing consistency. Servo-driven push structure ensures stable, low-noise and accurate material pushing, with adjustable clearance between products and cartons from 5–10 mm.
 
The whole machine is built with heavy-duty frame, supporting 5-layer corrugated cartons, packing speed up to 1–2 cartons per minute. Modular design allows seamless connection with upstream carton erectors and downstream sealing, weighing, labeling and palletizing equipment to build a fully automatic packaging production line. All carton size parameters can be saved on touchscreen HMI for quick format changeover.
Side Push Horizontal Loading Structure

Horizontal side push packing mode avoids vertical extrusion damage to fragile inner boxes; adjustable 5–10mm gap between goods and cartons to protect finished products. Supports layered stacking of multiple inner boxes for one-time carton filling.

Upstream docks with automatic carton erectors; downstream connects with carton sealers, weight check rejectors, real-time printing labeling machines and palletizing robots. Suitable for food, cosmetics, daily goods, hardware and e-commerce warehouse mass packaging.

Full servo push mechanism for smooth operation, packing speed 1–2 cartons/min. Touchscreen stores multiple preset carton sizes for fast size changeover, reducing line downtime. Heavy-duty machine frame runs stably for long continuous shifts.

Designed for 5-layer corrugated shipping cartons. All dimensions can be customized according to customers’ actual box specifications, professional technical team provides on-site size evaluation service.

HL-ZX01 Robotic Gripping Carton Packer

UBL HL-ZX01 robotic gripping carton packer adopts dual vertical gripper manipulators to realize automatic grabbing, multi-layer stacking and vertical loading of inner boxes into corrugated shipping cartons.
Matched with upstream carton erectors, the machine receives fully bottom-sealed empty cartons and cooperates with an independent product conveying line for automatic sorting and arrangement. Servo-driven gripping manipulators deliver stable, high-speed picking without scratching fragile products, supporting packing speeds from 1 to 6 cartons per minute.
The whole machine heavy-duty frame supports 5-layer corrugated boxes. Modular design enables seamless docking with downstream sealing, weight inspection, printing labeling and palletizing equipment to build a fully unmanned packaging line. Multiple carton size recipes can be saved on the touchscreen HMI for fast format changeover to reduce production downtime.
Dual Vertical Robotic Gripping Mechanism

Dual servo gripper manipulators perform stable multi-layer product grabbing and vertical loading; adjustable 5–10mm clearance prevents extrusion damage to fragile goods. High flexibility for irregular inner boxes and bulk commodity packing.

Packing speed adjustable from 1–6 cartons/min, freely matched with different upstream production line output. Touchscreen stores multiple size presets for one-click switching, greatly shortening model change time.

Upstream connects with automatic carton erectors; downstream links carton sealers, weight check rejectors, real-time printing labeling machines and palletizing robots. Widely used in food, cosmetics, daily necessities, hardware and e-commerce warehouse packaging.

Suitable for 5-layer corrugated shipping cartons. All internal/external dimensions can be customized according to customers’ actual box specifications. Heavy-duty welded frame ensures long-term continuous stable operation.

Frequently Asked Questions About Automatic Case Packing Machines

Choosing the right automatic case packing machine is more than comparing speeds and specifications. Manufacturers often need to evaluate product compatibility, carton styles, production capacity, line integration, labor savings, maintenance requirements, and long-term return on investment before making a purchasing decision.

To help manufacturers make informed decisions, UBL has compiled this comprehensive FAQ based on years of packaging automation experience and real-world customer projects. Whether you’re planning your first automation upgrade or expanding an existing production line, this guide answers the questions most frequently asked by production managers, engineers, and procurement teams.

The questions below are organized according to the typical buying journey—from understanding how case packing machines work, to selecting the right model, integrating it into your production line, evaluating operating costs, and learning about UBL’s engineering and support services.

Understanding Case Packing Machines

What Is an Automatic Case Packing Machine?

An automatic case packing machine (or case packer) is end-of-line packaging equipment that automatically loads finished products, inner boxes or bulk items into outer corrugated shipping cartons. It replaces repetitive manual carton loading work, ensures consistent packing quality, and integrates with upstream production lines and downstream sealing/palletizing equipment to build a fully unmanned packaging workflow. Common configurations include top-load robotic gripping models and side-load horizontal push models.

The standard working cycle follows 4 core steps:
  1. Empty bottom-sealed cartons are conveyed from the upstream case erector and positioned accurately at the loading station.
  2. Products are fed via an independent conveyor line, automatically sorted, aligned and arranged into preset layouts.
  3. The packing mechanism — either a top robotic gripper or horizontal side pusher — loads products into the carton layer by layer.
  4. Fully packed cartons are discharged automatically and transferred to the downstream case sealer for final sealing.
Automatic case packers handle a wide range of regular-shaped products, including:
  • Pre-folded inner boxes, gift boxes and blister packs
  • Bottled, canned and boxed food & beverage products
  • Cosmetic sets, skincare bottles and daily chemical products
  • Flat folded garments, towels and textile products
  • Hardware accessories, electronic components and small household parts
  • E-commerce parcels and sorted retail commodity sets
Standard UBL case packers are compatible with 3-layer and 5-layer corrugated shipping cartons, including:
  • Regular slotted container (RSC) cartons
  • Snap lock bottom cartons with pre-glued bottoms
  • Pre-erected bottom-sealed cartons
     
    A 5–10 mm clearance between products and carton inner walls is reserved to avoid scratching or extrusion damage. All carton dimensions can be customized based on actual customer box samples.
DimensionTop Load (Robotic Gripping) Case PackerSide Load (Horizontal Push) Case Packer
Loading methodVertical top-down grabbing by servo grippersHorizontal side push into cartons
Best forMulti-layer stacked inner boxes, irregular products, tray setsFlat single-layer products, row-arranged items
Packing speed1–6 cartons per minute, adjustable1–2 cartons per minute
Investment costHigher, with more flexible applicationLower, ideal for simple single-format packing
Typical modelUBL HL-ZX01UBL HL-ZX02

Choosing the Right Machine

How Do I Choose the Right Case Packing Machine?
     Select the optimal model based on 4 key factors:
  • Product form: Multi-layer stacked boxes or irregular items choose top-load gripping models; flat single-row products choose side-push models.
  • Output demand: Match packing speed to your upstream production line throughput to avoid bottlenecks or idle capacity.
  • Carton specification: Confirm carton size range and corrugated layer count for customized fixture design.
  • Budget and automation level: Choose between stand-alone machines and full turnkey packaging lines.
The ideal speed matches your upstream production output with a 10–20% buffer.
  • UBL HL-ZX01 top-load gripper case packer: 1–6 cartons per minute, adjustable, suitable for medium & high output lines
  • UBL HL-ZX02 side-push case packer: 1–2 cartons per minute, suitable for small batch, multi-SKU production
     
    We recommend calculating based on single-shift or double-shift working hours to select the most cost-effective configuration.

Yes. All UBL case packers are equipped with a touchscreen HMI that stores multiple sets of product and carton size presets. Operators can switch between different SKUs by calling saved parameters, without replacing mechanical parts or making major adjustments. The machine supports flexible production for multi-SKU small-batch orders.

For regular size switching within the machine’s compatible range, a trained operator can complete changeover in 5–10 minutes:
  • Call the saved size recipe on the touchscreen
  • Make fine adjustments to conveyor width and gripper/pusher position
  • Run 1–2 test cartons to verify packing quality
    For completely new carton sizes, initial parameter setup takes about 15–20 minutes and can be saved for future one-click use.
Automatic case packing equipment is widely adopted across manufacturing and logistics sectors:
  • E-commerce fulfillment centers and third-party logistics warehouses
  • Food, snack, beverage and frozen food production
  • Cosmetics, personal care and household chemical manufacturing
  • Hardware tools, electronic components and small home appliances
  • Textile, garment, towel and home textile production
  • Toy, stationery and general consumer goods packaging

Integration & Automation

Can a Case Packer Connect to My Existing Production Line?

Yes. UBL case packers adopt a modular design with standard conveyor interfaces and signal communication protocols. They can be seamlessly connected to your existing production conveyor lines, with no need for large-scale reconstruction of your current layout. We provide custom inlet/outlet conveyor solutions to match different line heights and directions.

Absolutely. Case packers are core middle-stage equipment that natively works with upstream case erectors and downstream case sealers:
  • Upstream: The case erector automatically unfolds flat cartons, seals the bottom and delivers empty cartons to the packing station.
  • Downstream: Fully packed cartons are conveyed to the case sealer for top flap folding and tape sealing.
     
    The three units achieve signal linkage and synchronous operation, forming a complete “erect – pack – seal” automated outer carton packaging line.

Yes. The UBL HL-ZX01 top-load case packer is built with a dual servo robotic gripping mechanism for pick-and-place packing. The gripper arms pick products from the feeding conveyor precisely, arrange them in preset multi-layer layouts, and place them gently into cartons. This structure avoids extrusion damage to fragile products and supports flexible stacking schemes for different box combinations.

Yes. After case sealing, packed cartons can be conveyed via accumulating conveyors to an automatic palletizing robot. The whole end-of-line workflow — case erecting, product packing, carton sealing and pallet stacking — can be fully automated with zero manual intervention. UBL provides integrated turnkey solutions covering all end-of-line packaging equipment.

Cost & ROI

How Much Labor Can an Automatic Case Packer Save?
A standard automatic case packer can replace 2–3 manual packing workers per shift. For factories running double shifts, one machine replaces 4–6 full-time packing operators.
 
Beyond direct labor cost savings, it also reduces:
  • Labor management, recruitment and training costs
  • Packing inconsistency and product damage caused by human error
  • Downtime from worker absence or turnover
     
    It effectively solves the problem of recruitment difficulty and rising labor costs in labor-intensive packing positions.
For most small and medium-sized manufacturing plants, the typical ROI period is 6–12 months.
 
ROI comes from three main sources:
  1. Direct savings on manual packing labor costs
  2. Reduced product damage rate and packaging material waste
  3. Improved and stabilized output capacity, supporting more order volume
     
    Actual payback period varies by local labor cost, daily running hours and order saturation. We can provide a customized ROI calculation based on your specific production data.
UBL case packers feature a compact integrated design with a small footprint:
  • HL-ZX01 top-load gripping case packer main unit: approx. L3000 × W2000 × H2500 mm
  • HL-ZX02 side-push case packer main unit: approx. L3500 × W2200 × H1800 mm
     
    Including standard inlet and outlet conveyor sections, total required workshop floor space is about 8–12 square meters. It is suitable for factories with limited workshop space and can be arranged flexibly according to your existing layout.
Both standard models have low utility demands, compatible with most factory infrastructure:
  • Power supply: 220V/50Hz, total power 3KW
  • Compressed air: 600NL/min air consumption, stable working pressure 0.6–0.8 MPa
     
    No extra power capacity upgrade or large air compressor investment is required for normal factory workshops.

UBL Services

Why Choose UBL?

UBL is a professional manufacturer focused on automated packaging equipment with years of R&D and production experience. Our case packers feature mature and stable mechanisms, cost-effective configurations and flexible customization capabilities. We provide one-stop service from solution design, manufacturing, debugging to after-sales support, and serve customers across the globe in manufacturing, e-commerce and logistics industries.

Yes, we provide full customization services based on your actual needs:
  • Customized carton size range and product fixture design
  • Customized feeding/discharging direction and conveyor length
  • Special function upgrades: weight checking, barcode scanning, dust-proof enclosure
  • Full turnkey packaging line layout design according to your workshop dimensions
     
    You only need to provide product samples, carton drawings and workshop layout, and our technical team will deliver a tailored solution.
  • Standard mass-produced models: 15–20 working days after deposit
  • Customized configuration models: 25–30 working days after design confirmation
     
    We strictly follow the delivery schedule stated in the contract, and will keep you updated on production progress throughout the manufacturing process. For urgent orders, please contact our sales team for priority arrangement evaluation.
We offer comprehensive after-sales guarantee:
  • 7×24 hour technical response support
  • Remote video troubleshooting and guided maintenance
  • Sufficient spare parts inventory for fast delivery worldwide
  • Lifetime technical consultation and software upgrade support
     
    For overseas customers, we provide localized technical support and spare parts supply channels to minimize downtime.
Yes. We provide detailed installation drawings, operation manuals and video guides for self-installation. For domestic customers, on-site installation and commissioning by our technicians is available.
 
Free operation training is included, covering:
  • Daily machine operation and parameter setting
  • Routine maintenance and consumable replacement
  • Common fault diagnosis and simple troubleshooting
     
    Trained operators can master independent operation and daily maintenance after the training.
  • 12-month full machine warranty covering non-artificial failures
  • 18-month warranty for core components including servo motors and PLC control system
     
    During the warranty period, defective parts caused by quality issues will be replaced free of charge. After the warranty expires, we provide lifelong technical support and spare parts supply at cost

Industry cases and solutions

We provide solutions across a wide range of industries. To learn more, please click below to view our case studies.

Food Industry

UBL offers a complete automatic packaging solution for the food industry through its advanced carton folding machines and case packers

Cosmetics Industry

In the cosmetics industry, packaging is more than just protection — it represents brand value and customer experience.

Beverage Alcohol Industry

Alcohol is one of the most common beverages in everyday life, but among the many liquor suppliers, how can a brand truly stand out? 

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