Automatic Strapping Machine
Fully automatic PP strapping machine at 2.5 seconds per strap — handles cartons, boxes, and bundled products with consistent tension. 9–15mm strap width compatibility, compact floor footprint, and seamless conveyor integration. CE certified, factory-direct from SunAura Machinery.
Product Overview
The SunAura automatic strapping machine is a workhorse end-of-line solution designed for continuous, high-volume carton strapping operations. It automatically feeds, tensions, seals, and cuts PP (polypropylene) strapping around packages in a single 2.5-second cycle — eliminating manual strapping labor and ensuring consistent strap tension on every single package.
Unlike semi-automatic tabletop models that require operator-assisted strap feeding, this fully automatic unit feeds strapping automatically from a floor-standing dispenser, threads it through the arch frame, and cycles automatically when a package enters the strapping zone. This makes it the ideal choice for integration with roller conveyors, case sealers, and other packaging line equipment where unattended operation is required.
Every machine is factory-tested with actual carton samples before shipment and ships CE certified. Our engineering team can help you integrate the strapper into your existing line — just send us your conveyor layout and package dimensions.
Technical Specifications
| Model | SNA-AS2000 Automatic Strapping Machine |
|---|---|
| Strapping Speed | 2.5 seconds per strap (cycle time) |
| Strap Material | PP (polypropylene) strapping band |
| Strap Width | 9 – 15 mm (adjustable guide) |
| Strap Thickness | 0.55 – 1.2 mm |
| Max Tension | 0 – 45 kgf (adjustable) |
| Arch Size (W × H) | 800 × 600 mm (standard; custom sizes available) |
| Min Package Size | 100 × 100 mm (L × W) |
| Max Package Size | Unlimited (length); width × height limited by arch size |
| Conveyor Height | 750 mm (standard; adjustable 720–780 mm) |
| Motor Power | 0.75 kW (main drive) |
| Voltage | 220V / 380V, 3-phase, 50/60 Hz (customizable) |
| Air Supply | 0.5 – 0.7 MPa (for pneumatic sealing) |
| Machine Dimensions | 1400 × 650 × 1500 mm (L × W × H) |
| Net Weight | Approx. 180 kg |
| Certification | CE Certified, ISO 9001:2015 factory |
Key Features & Benefits
- 2.5-second cycle time: Rapid automatic strapping cycle processes up to 24 packages per minute — ideal for medium to high-volume end-of-line operations.
- Automatic strap feeding: The machine automatically threads and feeds PP strapping through the arch frame — no operator assistance required between cycles.
- Adjustable tension control: Electronic tension adjustment from 0–45 kgf accommodates everything from light corrugated cartons to heavy-duty export packaging.
- 9–15mm strap compatibility: Adjustable strap guide works with 9mm, 12mm, and 15mm PP strapping widths — flexible across different packaging strength requirements.
- Seamless conveyor integration: Standard 750mm conveyor height matches most packaging line conveyors — easy integration with roller conveyors, case sealers, and shrink wrappers.
- Fast strap changeover: Front-loading strap dispenser design enables strap roll replacement in under 2 minutes — minimal production downtime.
- Consistent strap quality: Electric heat-seal joining provides uniform, reliable seals on every cycle — no uneven burns or weak joints.
- Compact footprint: 1400 × 650 mm floor footprint fits in tight packaging areas — suitable for both standalone and inline configurations.
- CE-compliant safety design: Full machine guarding, emergency stop, and safety interlocks meet European Machinery Directive requirements.
- Low maintenance cost: Standard wear parts (sealing teeth, cutters, feed wheels) are inexpensive and user-replaceable — no specialized service technician needed.
Common Applications
E-Commerce Fulfillment
Order fulfillment centers, shipping departments, and e-commerce packaging lines — fast, consistent strapping for outbound cartons.
Warehouse & Distribution
Distribution centers, 3PL warehouses, and logistics hubs — inline strapping at case sealing and shipping stations.
Food & Beverage
Beverage cartons, canned goods, packaged food products — secure strapping for pallet loads and multi-packs.
Pharmaceutical & Medical
Pharma packaging lines, medical device manufacturing — clean, reliable strapping for cartons of medical supplies.
Manufacturing & Industrial
Manufacturing plants, component suppliers, and assembly lines — securing cartons of parts and components for shipping.
Print & Publishing
Print shops, publishing houses, and paper product manufacturers — strapping stacks of printed materials and paper products.
How It Works
- Package detection: Photoelectric sensor detects the carton entering the strapping zone and triggers the automatic strapping cycle.
- Strap feeding around package: PP strapping is automatically fed through the arch frame and loops around the carton as it moves into position.
- Tensioning and sealing: The strap is pulled tight to the set tension level, then heat-sealed and cut — all in under 2.5 seconds.
- Package discharge: The strapped carton continues along the conveyor to the next downstream station — pallet wrapping, labeling, or shipping.
- Auto-reload ready: The machine automatically feeds a new strap tail for the next cycle — continuous operation with no manual intervention.
How to Choose the Right Strapping Machine
- Package size vs arch size: Standard arch is 800 × 600mm. If your cartons are larger, we can fabricate custom arch sizes up to 1500 × 1200mm on request.
- Production volume: At 2.5 sec/strap, this handles up to 24 straps/min. For higher volumes, consider our high-speed automatic strapping line with dual arch configuration.
- Integration needs: If you need to combine strapping with case sealing, look at our sealing and strapping combo machine — saves floor space and one transfer point.
- Strap width requirements: Standard 9–15mm PP strap works for most carton applications. For heavy-duty export packaging, we offer 19mm strap width upgrade options.
- Power and air requirements: Standard 3-phase 380V power and 0.6MPa compressed air are required. For 110V single-phase operation, let us know at the time of order.
Quality & Certifications
CE Certified
Full CE documentation with machinery directive, EMC, and safety compliance files included with every machine.
ISO 9001:2015
48,000m² in-house factory in Qingdao with certified quality management system for consistent build quality.
Factory Tested
Every strapping machine undergoes 48 hours of continuous run testing before shipment to verify reliability.
12-Month Warranty
Comprehensive parts and labor warranty plus lifetime technical support from our engineering team.
Frequently Asked Questions
What size cartons can this machine handle?
The standard 800 × 600mm arch handles cartons up to 800mm wide and 600mm tall. Carton length is unlimited (as long as they fit on the conveyor). Custom arch sizes are available for larger packages — let us know your carton dimensions when requesting a quote.
What kind of strapping does it use?
This machine uses standard polypropylene (PP) strapping band, available in 9mm, 12mm, and 15mm widths. PP strapping is the most common and cost-effective strapping material for carton applications.
Does it require compressed air?
Yes, the pneumatic sealing system requires 0.5–0.7 MPa compressed air supply. Air consumption is approximately 0.05 m³ per cycle — very economical for continuous operation.
How do I load a new strap roll?
The machine features a front-loading strap dispenser — open the front panel, drop in a new strap roll, thread the strap through the guide path, and press the auto-feed button. Full roll change takes under 2 minutes.
Can it integrate with my existing conveyor?
Yes. The standard conveyor height is 750mm, which matches most packaging line conveyor systems. We can provide custom height adjustments or interface plates to match your existing equipment.
What is the lead time for this machine?
Standard models have a lead time of 15–25 days from deposit receipt. Custom arch sizes or special voltage configurations add 5–10 days. We provide weekly production updates with photos.
Common Issues & Solutions
| Issue | Possible Cause | Solution |
|---|---|---|
| Strap not feeding properly | Dirty feed wheels; strap path misaligned; worn wear strips | Clean feed wheel surfaces; check strap path alignment; replace worn wear strips |
| Inconsistent seal quality | Worn sealing teeth; insufficient air pressure; wrong temperature setting | Replace sealing tooth assembly; verify air pressure at 0.6MPa; adjust heat-seal temperature |
| Strap tension too weak or too strong | Tension setting incorrect; worn tension spring | Adjust tension knob on control panel; inspect and replace tension spring if needed |
| Machine not triggering automatically | Photoelectric sensor dirty; sensor misaligned; no package detected | Clean sensor lens; adjust sensor position to match package height; test with a sample carton |
| Strap jamming in arch frame | Worn arch wear strips; bent strap guide; incorrect strap width | Replace arch wear strips; inspect and straighten strap guide; verify strap width matches guide setting |
Ready to Automate Your End-of-Line Strapping?
Send us your carton dimensions, production volume, and current packaging line layout. Our engineering team will recommend the right strapping solution and send you a detailed quote within 24 hours.
