Boxing Machine
Packaging Equipment
Case Packer
Professional Packaging Equipment Supplier
1. Product Overview
The case packer is an automated packaging device that loads inner-packaged products (such as boxed, bottled, or bagged items) into corrugated cartons in a predetermined arrangement. It is widely used in the food, pharmaceutical, daily chemical, and beverage industries. The machine can be integrated with upstream cartoners, carton sealers, and palletizers to form a complete end-of-line packaging system, enabling fully automated packaging from individual cartons to full cases. Through precision mechanical structures and intelligent control systems, the case packer reliably and efficiently completes product layering, grouping, pick-and-place, carton forming, and bottom sealing operations, significantly reducing labor costs while improving production efficiency and packaging consistency. Depending on product configuration and case packing methods, case packers are available in drop-type, pick-and-place, side-push, and wrap-around variants to accommodate various product dimensions and carton specifications.
2. Working Principle
The working principle of the case packer involves the following steps: First, empty cartons are fed to the case packing station by an automatic carton erector or manually, with bottom flaps automatically folded and sealed with tape via mechanical mechanisms or suction cups. Second, products arriving from upstream production lines are grouped and layered into predetermined matrix arrangements (e.g., 2×3, 3×4) through dividing and collating mechanisms. Third, the case loading mechanism loads products into cartons using different methods depending on the packing type — drop-type case packing uses a pneumatic cylinder to vertically drop product groups from above into the carton; pick-and-place case packing uses robotic arms or suction cup arrays to grip and horizontally place product groups into the carton; side-push case packing uses pusher bars to horizontally push product groups into the carton from the side. Finally, top flaps are folded and sealed by the top sealing mechanism, and finished cartons are conveyed to downstream palletizing stations. The entire process is coordinated by a PLC programmable controller, with photoelectric sensors providing real-time detection of product positioning to ensure case packing accuracy and operational stability.
3. System Classification
3.1 Classification by Case Packing Method
| Type | Working Method | Applicable Products | Features |
|---|---|---|---|
| Drop-Type Case Packer | Products vertically dropped into carton from above | Bottled, canned products | High speed, simple structure |
| Pick-and-Place Case Packer | Robotic arm/suction cups grip and place products | Boxed, bagged products | High flexibility, multi-format |
| Side-Push Case Packer | Products horizontally pushed into carton from side | Regular rectangular products | Tight arrangement, good stability |
| Wrap-Around Case Packer | Carton blank wraps around products and seals | Canned, bottled beverages | Saves board, neat appearance |
| Robotic Case Packer | Multi-axis robot picks and places products | Irregular items, multi-variety | Highest flexibility, fast changeover |
3.2 Classification by Automation Level
| Type | Automation Level | Production Speed | Typical Application |
|---|---|---|---|
| Semi-Auto Case Packer | Manual carton erection & product loading | 8~15 cases/min | Small batch, multi-variety |
| Fully Auto Case Packer | Auto erect, collate, load & seal | 15~30 cases/min | Medium-large scale production |
| High-Speed Case Packer | Fully automated high-speed operation | 30~60 cases/min | Large-scale production lines |
4. Detailed Technical Parameters
4.1 Material of Product Contact Parts
| Component | Material | Surface Treatment | Characteristics |
|---|---|---|---|
| Conveyor Belt | Food-grade PU/PVC | Anti-slip pattern | Wear-resistant, oil-proof, easy clean |
| Guide Rail/Strip | SS304 | Polished Ra≤0.8μm | Corrosion-resistant, smooth |
| Gripping Mechanism | Aluminum alloy + silicone pad | Anodized | Lightweight, cushioning protection |
| Pusher Plate | SS304/UHMWPE | Mirror polished | Wear-resistant, non-adhesive |
| Frame | Carbon steel Q235 | Powder coated | High strength, rust-proof |
| Carton Conveyor Chain | POM engineering plastic | Injection molded | Low noise, self-lubricating |
4.2 Specification Parameters
| Parameter | Standard Type | High-Speed Type | Robotic Type |
|---|---|---|---|
| Packing Speed | 15~25 cases/min | 30~50 cases/min | 10~20 cases/min |
| Carton Size (L×W×H) | 200~500×150~400×100~400mm | 200~500×150~400×100~400mm | 200~600×150~500×100~500mm |
| Max Product Size | 250×180×250mm | 250×180×250mm | 300×250×300mm |
| Packing Layers | 1~3 layers | 1~3 layers | 1~4 layers |
| Units per Layer | 2×3/3×4/4×6 | 3×4/4×6/5×8 | Any combination |
| Compressed Air Pressure | 0.5~0.7MPa | 0.5~0.7MPa | 0.5~0.7MPa |
| Air Consumption | 150~250L/min | 200~350L/min | 100~200L/min |
| Total Power | 2.5~4.0kW | 4.0~7.5kW | 3.0~5.0kW |
| Machine Weight | 800~1200kg | 1200~2000kg | 600~1000kg |
| Dimensions (L×W×H) | 3500×1500×2200mm | 4500×1800×2400mm | 3000×2000×2200mm |
4.3 Performance Indicators
| Indicator | Parameter Value | Test Conditions |
|---|---|---|
| Case Packing Qualification Rate | ≥99.5% | Continuous 8-hour operation |
| Carton Damage Rate | ≤0.1% | Standard carton, normal operation |
| Product Damage Rate | ≤0.05% | Standard product, normal operation |
| Noise Level | ≤75dB(A) | Measured at 1m from equipment |
| Changeover Time | 15~30 minutes | Including mold change & parameter adjust |
| MTBF | ≥2000 hours | Normal operating conditions |
| Equipment Availability | ≥95% | Annual statistics |
4.4 Electrical Parameters
| Item | Parameter |
|---|---|
| Power Supply | 3P+N+PE, AC380V±10%, 50Hz |
| Control Power | DC24V (switching power supply) |
| Control System | Siemens S7-1200/Mitsubishi FX5U PLC |
| HMI | 7/10-inch color touchscreen |
| Servo System | Delta/Panasonic servo motor + driver |
| Sensors | Keyence/Omron photoelectric sensors |
| Pneumatic Brand | SMC/Airtac |
| Safety Protection | E-stop, safety door switch, light curtain |
| Communication | Ethernet, RS485, Profinet optional |
Note: Electrical component brands can be substituted with equivalent alternatives upon request.
5. Core Component Selection
| Component | Recommended Brand | Model | Function |
|---|---|---|---|
| PLC Controller | Siemens S7-1200 | 6ES7 214-1AG40 | Machine logic control & data management |
| Servo Motor | Panasonic MINAS A6 | MDME202G1G | Drive conveyor & gripping mechanism |
| Touchscreen | Weintek MT8102iE | 10-inch Ethernet | Parameter setting & monitoring |
| Inverter | Delta MS300 | 2.2kW | Conveyor speed adjustment |
| Cylinder | SMC CM2 Series | Various specs | Pushing, pressing actions |
| Suction Cup | Festo/PIAB | Multi-cup array | Carton pickup & product gripping |
| Photoelectric Sensor | Keyence LR-Z Series | NPN/PNP output | Product detection & missing check |
| Gear Reducer | SEW/Guomao | R-series helical | Main drive reduction |
Note: Core component brands can be configured per customer specification with prior confirmation.
6. Typical Application Fields
Food & Beverage Industry: Case packing of bottled water, carbonated drinks, beer, canned foods, supporting various bottle types and arrangement patterns. Can be integrated with blow molding machines and filling machines for fully automated production lines.
Pharmaceutical Industry: Secondary case packing of boxed medicines, meeting GMP requirements. Stainless steel construction and food-grade belts ensure clean, contamination-free operation.
Daily Chemical Industry: Case packing of shampoo, body wash, laundry detergent bottles or bags, accommodating various packaging formats and quick changeover.
Chemical Industry: Case packing of paint buckets, lubricant cans, requiring explosion-proof ratings and corrosion-resistant materials.
Electronics Industry: Case packing of small appliances, component boxes, requiring precise gripping without surface damage.
7 Design Standards & Certification
7. Design Standards and Certifications
| Standard Category | Standard No. | Standard Name |
|---|---|---|
| International | ISO 9001:2015 | Quality Management System Requirements |
| International | ISO 14120:2015 | Safety of Machinery — Guards |
| International | IEC 60204-1:2016 | Electrical Equipment of Machines |
| China | GB/T 19001-2016 | Quality Management System Requirements |
| China | GB/T 15706-2012 | Safety of Machinery — General Design Principles |
| China | GB/T 5226.1-2019 | Electrical Safety of Machinery |
| China | GB/T 8196-2018 | Safety of Machinery — Guards |
| Industry | GMP | Good Manufacturing Practice (pharmaceutical) |
| Industry | CE | EU Machinery Directive 2006/42/EC |
8. Customization Options
| Option | Description | Application Scenario |
|---|---|---|
| Auto Carton Erector Integration | Automatic carton supply upstream | Fully automated production lines |
| 3D Vision Positioning System | Visual recognition of product position & orientation | Irregular/multi-variety case packing |
| Quick-Change Multi-Format Tooling | Pneumatic clamp quick-change system | Frequent format changeover |
| Inkjet/Labeling Module | Online coding or labeling function | Product traceability needs |
| Checkweighing Module | Online weight verification of finished cases | High quality control requirements |
| Remote Monitoring & Diagnostics | IoT remote O&M platform | Multi-plant/remote management |
| Explosion-Proof Configuration | ExdIIBT4 explosion-proof rating | Chemical/flammable environments |
| Full Stainless Steel Enclosure | All SS304 exterior cladding | Food/pharma clean environments |
9. Warranty Terms
| Warranty Item | Warranty Content |
|---|---|
| Machine Warranty Period | 12 months from acceptance date |
| Core Component Warranty | PLC/servo/reducer: 24 months |
| Wearable Parts Warranty | Belt/suction cups/cylinder seals: 6 months |
| Software Upgrade | Free upgrade during warranty period |
| Technical Training | Free training for 2~3 operators during installation |
| After-Sales Response | Phone response within 2 hours, on-site within 24~48 hours |
| Spare Parts Supply | Guaranteed for 5 years after production discontinuation |
Note: Free repair and replacement during warranty for quality-related failures; damage caused by human factors or force majeure is excluded.
10. Packaging & Delivery
| Item | Description |
|---|---|
| Packaging Method | Machine wrapped in moisture-proof film + wooden crate |
| Crate Specification | Export-grade plywood crate (fumigation-free) |
| Moisture Protection | Desiccant + vacuum aluminum foil bag |
| Shock Protection | EPE foam + bubble wrap cushioning |
| Lifting Method | 4-point top lifting |
| Transport Method | Truck/railway/ocean shipping |
Lead time: 45~60 working days after contract signing and deposit received. Installation & commissioning: Seller dispatches technicians for on-site installation, approximately 5~7 working days.
11. Inquiry Information Required
To receive an accurate quotation, please provide the following information:
Product name and dimensions (L×W×H)
Products per case arrangement (rows×columns×layers)
Carton inner dimensions (L×W×H)
Product weight (per unit / per case)
Required case packing speed (cases/min)
Product type (bottled/boxed/bagged/canned)
Production environment requirements (standard/clean/explosion-proof)
Upstream equipment model and interface requirements
Power supply and compressed air specifications
Other special customization requirements