KY-420B Automatic Rigid Box Machine
Industry-leading automatic rigid box making machine producing 15-20 premium boxes per minute. Fully automatic paper feeding, gluing, positioning, and folding with PLC precision control. The most trusted rigid box machine for luxury packaging worldwide.
Why Manufacturers Choose the KY-420B
Replace manual box making with fully automatic production — 10x faster, zero quality variation.
⚠️ Manual & Semi-Auto Box Making Problems
- Slow output: Manual workers produce only 2-3 rigid boxes per minute, creating production bottlenecks
- Inconsistent quality: Hand-wrapped boxes show visible wrinkles, misaligned paper, and uneven corners
- High labor cost: Requires 8-12 workers per production line for feeding, gluing, folding, and pressing
- Material waste: Manual gluing wastes 8-10% of wrapping paper and adhesive due to imprecise positioning
- Slow changeover: Switching box sizes takes 30-60 minutes with manual jig adjustment
- Worker dependency: Quality depends entirely on operator skill — high turnover means constant retraining
✅ KY-420B Automatic Solution
- 15-20 boxes/min: 5-10x faster than manual production with zero quality variation between pieces
- Perfect finish every time: PLC-controlled positioning ensures wrinkle-free, perfectly aligned wrapping on every box
- 1-operator line: One person loads materials — the machine handles feeding, gluing, positioning, and folding automatically
- <2% waste: Precision glue application and paper positioning eliminates excess material consumption
- 15-min changeover: PLC job memory stores dimensions — recall any saved size instantly
- Skill-independent: Consistent output regardless of operator experience level — 2-day training gets any worker production-ready
Key Features
Engineering excellence in every detail — built for 24/7 industrial rigid box production.
PLC Control System
Industrial-grade programmable logic controller with touch-screen HMI for precision operation. Save and recall unlimited box size presets for instant changeover.
High Speed Production
15-20 rigid boxes per minute at full speed. Servo-driven feeding system ensures precise paper alignment at high throughput without jams.
Precision Positioning
Optical sensor alignment system positions wrapping paper with ±0.3mm accuracy. Eliminates visible misalignment, wrinkles, and uneven margins.
Heavy-Duty 950kg Frame
Welded steel chassis with vibration dampening ensures rock-solid stability at full speed. Built for 20+ years of continuous industrial operation.
Quick Size Changeover
Change box dimensions in 15-20 minutes. PLC stores job recipes — recall any saved size with one button press for repeat orders.
Wide Size Range
From 130×50×20mm to 420×390×120mm — handles jewelry boxes, phone boxes, shoe boxes, gift boxes, and large luxury packaging.
Technical Specifications
Complete technical data for the KY-420B automatic rigid box machine.
| Model | KY-420B |
|---|---|
| Max Box Size | 420 × 390 × 120 mm |
| Min Box Size | 130 × 50 × 20 mm |
| Production Speed | 15 – 20 pcs/min |
| Power | 10 KW, 380V Three Phase |
| Machine Dimensions | 6000 × 1500 × 2000 mm |
| Machine Weight | 950 kg |
| Control System | PLC + HMI Touch Screen |
| Greyboard Thickness | 0.5 – 3.0 mm |
| Wrapping Paper | Art paper, coated paper, specialty paper |
| Gluing System | Automatic roller gluing |
| Operators Required | 1 – 2 persons |
| Warranty | 36 months (full parts & labor) |
Video Demonstration
Watch the KY-420B automatic rigid box machine producing premium boxes at full production speed.
How It Works
Four automated stages transform flat materials into perfectly wrapped rigid boxes.
Auto Feed
Greyboard blanks and wrapping paper are automatically fed from the paper feeder into the machine with precise alignment.
Glue Application
Automatic roller gluing system applies adhesive evenly across the wrapping paper surface with precise thickness control.
Position & Wrap
Optical sensors position the greyboard box core onto the glued paper with ±0.3mm accuracy. Paper wraps around all four sides.
Fold & Press
Mechanical folders tuck corner flaps and press edges for a tight, wrinkle-free finish. Finished boxes exit via conveyor.
Application Industries
The KY-420B serves premium packaging manufacturers across every industry.
Luxury Gift Boxes
Premium rigid gift boxes for holidays, corporate gifts, wedding favors, and luxury retail brands.
Electronics Packaging
Phone boxes, tablet cases, headphone packaging, and consumer electronics unboxing experiences.
Jewelry & Watch Boxes
Elegant rigid boxes for jewelry, watches, and high-value accessories requiring premium presentation.
Cosmetics & Perfume
Luxury packaging for beauty products, skincare sets, perfume bottles, and cosmetics gift boxes.
Apparel & Fashion
Branded shoe boxes, clothing packaging, and fashion accessory boxes for retail and e-commerce.
Wine & Spirits
Premium rigid boxes for wine bottles, whiskey sets, champagne gifts, and luxury beverage packaging.
Production Method Comparison
See how the KY-420B compares to semi-automatic and manual rigid box production.
| Feature | KY-420B (Auto) | Semi-Auto Machine | Manual Production |
|---|---|---|---|
| Production Speed | 15-20 pcs/min | 5-8 pcs/min | 2-3 pcs/min |
| Max Box Size | 420×390×120mm | 350×300×100mm | Unlimited |
| Operators Required | 1-2 | 2-3 | 8-12 |
| Quality Consistency | >99% | ~95% | ~85% |
| Material Waste | <2% | 3-5% | 8-10% |
| Size Changeover | 15-20 min | 20-30 min | 30-60 min |
| Paper Alignment | ±0.3mm (sensor) | ±1mm | ±2-3mm |
| Daily Output (8hr) | 7,200-9,600 boxes | 2,400-3,840 | 960-1,440 |
| ROI Timeline | 4-8 months | 8-12 months | N/A |
What Our Customers Say
Trusted by packaging manufacturers across 30+ countries worldwide.
“Your box corner taper has been running like a champion saving us time and money!! You have a customer for life.”
“The machine is working now fine, beautiful… thank you so much and maybe if we need other kind of box making machines I will contact you.”
“We have purchased case maker Ky-450 last year, right now the machine is running very stable, we are going to order one more machine from Kylin.”
Frequently Asked Questions
Common questions about the KY-420B automatic rigid box machine.
The KY-420B handles box sizes from 130x50x20mm (min) to 420x390x120mm (max), covering everything from small jewelry boxes to large gift boxes, electronics packaging, and shoe boxes.
The KY-420B produces 15-20 rigid boxes per minute depending on box size and paper thickness. This translates to 900-1,200 boxes per hour in continuous production.
The KY-420B produces lid-and-base boxes, fully wrapped rigid boxes, and setup boxes. It works with greyboard, MDF, and chipboard covered with art paper, specialty paper, or coated paper for luxury gift boxes, electronics packaging, jewelry boxes, cosmetics packaging, and apparel boxes.
The KY-420B replaces 8-12 manual workers while producing 15-20 boxes/min vs. 2-3 boxes/min by hand. Quality consistency improves from ~85% to over 99%, and material waste drops from 8-10% to under 2%.
The KY-420B requires 10KW, 380V three-phase power supply. The machine dimensions are 6000x1500x2000mm and it weighs 950kg. A level factory floor with adequate ventilation is recommended.
Size changeover on the KY-420B takes approximately 15-20 minutes thanks to the PLC control system with stored job presets. Operators can save frequently used box dimensions for instant recall, minimizing downtime between production runs.
Kylin provides a 36-month full warranty covering all mechanical, electrical, and PLC components. Support includes free remote troubleshooting via video call, spare parts shipped within 48 hours, free operator training, and optional on-site installation worldwide.
Most packaging operations achieve full ROI within 4-8 months through labor savings (replacing 8-12 workers), reduced material waste, and increased output. The KY-420B is Kylin’s best-selling rigid box machine with over 500 units installed globally.
Ready to Automate Your Rigid Box Production?
Join 500+ manufacturers worldwide who trust the KY-420B for their premium packaging production. Get your factory-direct quote today.
Related Machines
Build your complete rigid box production line with these companion machines.
KY-600 Fully Auto Rigid Box Machine
Auto Cardboard V Groove Machine
KY-600CS Auto Corner Pasting
KY-580C Flat Foldable Box Machine
The Complete Guide to Automatic Rigid Box Machines
Rigid boxes — also known as set-up boxes or luxury boxes — are the packaging standard for premium products across electronics, cosmetics, jewelry, fashion, and gift industries. Unlike folding cartons that ship flat and erect at the point of use, rigid boxes are pre-assembled and wrapped with decorative paper to create a tactile, high-perceived-value unboxing experience. As consumer expectations for packaging quality rise and luxury brands expand into emerging markets, the demand for automated rigid box production equipment has grown dramatically.
Why Automatic Rigid Box Machines Are Essential for Modern Packaging
The shift from manual to automatic rigid box production is driven by three converging forces. First, labor costs in major packaging manufacturing hubs — particularly China, India, Vietnam, and Turkey — have increased 8-12% annually, making manual box assembly increasingly uneconomical for volumes above 1,000 boxes per day. Second, luxury brands demand packaging consistency that manual production simply cannot guarantee; visible glue marks, misaligned paper, and inconsistent corner folds are unacceptable for brands like Apple, LVMH, or Estée Lauder. Third, e-commerce growth has created explosive demand for premium unboxing experiences, with the global rigid packaging market projected to reach \$147.46 billion in the US alone by 2026.
Choosing the Right Rigid Box Machine for Your Production Volume
The KY-420B occupies the sweet spot for most packaging manufacturers, handling the full range of common box sizes at 15-20 pieces per minute with minimal operator involvement. For operations requiring larger boxes or higher throughput, the KY-600 fully automatic rigid box machine offers expanded capacity with robotic integration. For startups or low-volume custom packaging, Kylin also offers semi-automatic models like the KY-430A that provide entry-level automation at a lower investment point. Whatever your production volume, Kylin Machines provides factory-direct pricing, 36-month warranties, and lifetime technical support to ensure your rigid box production line delivers maximum ROI from day one.
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ADDITIONAL SERVICES
Customers Meeting&Machines Training
Meeting in India
Meeting in Dubai
Trip to Turkey
To help you master the installation and operation of your equipment, Kylin provides authorized training programmes led by surface preparation specialists.
- How to set up your machine and optimize performance levels for your process.
- Key trouble-shooting tips that keep your machine(s) in prime condition to minimize downtime, minimize maintenance, and prevent future problems.
- How to optimize performance levels to maintain consistent quality and minimize waste
- The latest legislation and how to keep the machine safe.
We offer three years machine quality warrantty, we want You to be satisfied with the work we do and our Machine,
Every time. We Guarantee to perform all good services to your complete satisfaction at the agreed upon price.
If at any time within 30 days after completion of the job you're not completely satisfied, we will Re-Clean all required areas to your satisfaction.
If you 're still not satisfied we will refund the money paid.
Help from technician is only a phone call away.
We offer free over the phone tech support to help you troubleshoot any issue you may be having.
If you require onsite help we are able to send our technicians to you! Whether it’s for training or support we can meet your needs.
Our experienced factory technicians are eager for you to get the most from your Kylin Machine.
We also offer to do regular maintenance to your machinery to make sure it stays in the best condition throughout the lifetime of the product.
This will help guarantee that your machines will work well for as long as possible.
Initially one of our experienced operators will try and help you resolve the problem over the telephone.
If that is not successful then we would send a field engineer out to site.
Our engineers carry the most common spare parts so that most problems can be repaired on site.
In the unlikely event that the machine could not be repaired on site, we would either arrange another on site visit if appropriate,
or take the machine in to our state of the art workshop where we can deal with all types of repairs and refurbishments
10,000 customers in 30 countries using KYLIN MACHINES, meet our customers
What Client’s Say
Dear Jacob,
l am writing to thank you for the recent delivery of spare parts that we ordered
from your company.We have received the shipment in good condition and are pleased with the quality of the products you provided.26 Mar 2023
Boris BoguslavskiyCEO - Taropack
The machine is working now fine , beautiful … thank you so much and maybe if we need other kind of box making machines I will contact you
Nadine KodsyCEO - bassil bookbinding
Hi Jacob, thanks and i let you know…
Bit until now everythimg is perfect!Mit den besten Grüßen,
28 April 2023
Armin AkbarzadehCEO - X-PRESS Grafik & Druck GmbH
We had purchased two paper bag machines from Kylin last 3 year, untill now, the machines is using very well, and help us a lot in making luxury paper bag. Thanks Kylin DEM IMPEX PRIVATE LIMITED
John SmithCEO & Founder - SAP print
We have purchased case maker Ky-450 last year 2013, right now the machine is running very stable, we are going to order one more machine from Kylin.
EVER OLIVIA ENTERPRISE CO.,LTD
ALBERTO RINALDICEO & Founder - MEM company
We are the Agent of Kylin machine in UK, ky-40 Box stay machine and Ky-500 is very good comments, choose Kylin machine, choose the good quality Thanks
VIKAS TAWARCEO & Founder - Impack company
Good Morning JacobBusiness is going well!Your box corner taper has been running like a champion saving us time and money!!As we continue to grow we will definitely keep in touch and see if we can continue to our relationship with Kylin MachinesAll the best!!Jason
Jason HopkinsPrint & marketing execution experts - Ampersand
