Automatic Jewelry Box Pad Forming Machine KY-686
Servo-driven precision pad forming for luxury jewelry inserts. Automates gluing, edge-folding and tooth-cutting of velvet, satin & PU leather — ±0.1 mm accuracy on every piece.

Manual Forming vs. KY-686 Precision Automation
See exactly why leading jewelry packaging facilities are replacing manual pad forming with servo-driven automation.
⚠️ Manual Pad Forming — Current Limitations
- Inconsistent edge folding — wrinkles, uneven corners on velvet & satin
- Slow hand-gluing — only a few pads per minute per operator
- Cannot reliably produce heart-shaped or curved insert profiles
- High material waste from imprecise cutting and folding errors
- Quality varies between operators — skill-dependent results
- Luxury brand batches rejected for visible fold imperfections
- Labor-intensive — high headcount for modest output volumes
✅ KY-686 Servo Automation — The Solution
- ±0.1 mm servo precision — identical flawless edge folding on every pad
- Dramatically faster continuous automated forming cycle
- Auto tooth-cutting handles heart-shaped, oval, and custom profiles
- Optimised material usage — precise folding minimises waste
- Touchscreen recipe system — consistent quality, any operator
- Luxury-grade finish meets the strictest international brand standards
- One operator manages the entire production line output
Six Precision Advantages of the KY-686
Purpose-built for luxury jewelry insert production — every specification chosen to meet the demands of high-end packaging brands.
±0.1 mm Servo Accuracy
Microchip-controlled servo motor delivers surgical-grade positioning accuracy. Every insert comes out identical — critical for luxury brands with zero tolerance for defects.
Stepless Folding Adjustment
Continuously adjustable folding width from 3 mm to 6.5 mm via intuitive touchscreen. Switch between pad sizes in seconds — no tooling changes required.
Auto Tooth Cutting System
Integrated tooth-cutting mechanism makes precision incisions as material folds around curves. Enables smooth, professional edges on heart-shaped, oval, and custom-contour inserts.
Universal Material Compatibility
Processes velvet, suede, satin, PU leather, and premium art paper over foam, plastic, and cardboard cores. One machine handles your complete insert product range.
Ultra-Low 1 kW Power
Approximately 40% more energy-efficient than conventional pad forming machines (1.5–2 kW). Significantly lowers operating costs across continuous production shifts.
Industrial-Grade Servo Drive
Heavy-duty servo mechanism delivers consistent 24/7 production output with minimal scheduled maintenance. Engineered for demanding professional packaging environments.
KY-686 Full Technical Specifications
Complete engineering parameters for procurement evaluation and line integration planning.
| Parameter | Specification |
|---|---|
| Model Number | KY-686 |
| Power Supply | 220 V / Single Phase |
| Power Consumption | 1 kW (Ultra-Low — 40% below industry average) |
| Positioning Accuracy | ±0.1 mm (Servo Motor System) |
| Folding Width Range | 3 – 6.5 mm (Steplessly Adjustable) |
| Motor Type | Servo Electronic Motor |
| Control System | Microchip Processing Circuit + Touchscreen HMI |
| Wrap Materials | Velvet, Suede, Satin, PU Leather, Art Paper |
| Core Substrates | Foam, Plastic (PVC/ABS), Cardboard |
| Special Feature | Auto Tooth Cutting (for curved/complex profiles) |
| Machine Dimensions | 1200 × 600 × 1150 mm (L×W×H) |
| Warranty | 3-Year Quality Guarantee (all major components) |
| After-Sales Support | Free Lifetime Remote Technical Assistance |
Standard Package — What’s Included
See the KY-686 Precision Forming in Action
Watch live servo edge-folding, auto tooth-cutting on curved profiles, and touchscreen parameter setup.
4-Step Automated Production Cycle
From raw components to finished luxury insert — the complete KY-686 process sequence.
Load Core & Wrap
Position the foam, plastic, or cardboard pad core and lay the wrap material (velvet/satin/leather) in the feed station.
Precision Glue Application
The machine automatically applies adhesive to the exact bonding areas of the pad core — consistent every cycle.
Servo Fold & Tooth Cut
Servo motor folds edges to ±0.1 mm accuracy; auto tooth cutting handles inner curves and complex profile contours.
Finished Insert Output
Completed jewelry box insert with flawless wrapped edges exits the machine — ready for immediate box assembly.
Jewelry Insert Types the KY-686 Produces
Covers the complete range of luxury jewelry box insert formats used by international packaging manufacturers.
Ring Slot Inserts
Precision ring pads with tight edge folding and slot formations for single or multi-ring presentations.
Necklace Display Pads
Elongated insert trays with smooth wrapped edges for necklace and pendant showcase packaging.
Watch Cushions
Premium padded cushions with curved profiles for luxury watch box interiors — satin or velvet wrapped.
Earring Holder Inserts
Precisely formed inserts with earring post holes and flawless velvet or suede wrapping on all edges.
Bracelet Display Trays
Curved and contoured pads for bracelet and bangle presentation — complex profiles handled by auto tooth cutting.
Multi-Compartment Inserts
Complex jewellery organiser trays with multiple formed and wrapped sections for full set packaging.
KY-686 vs. Traditional Machines vs. Manual Forming
Objective performance comparison across the key metrics that matter most to production managers.
| Performance Factor | KY-686 Servo Auto Best | Traditional Machine | Manual Forming |
|---|---|---|---|
| Positioning Accuracy | ±0.1 mm servo | ±0.5 mm mechanical | ±2–3 mm by hand |
| Fold Width Adjustment | Stepless 3–6.5 mm digital | Fixed tooling change | Manual estimation |
| Complex Profiles (curves) | Auto tooth cutting | Not available | Skilled hand-cutting |
| Material Compatibility | All luxury wraps | Limited range | All materials |
| Power Consumption | 1 kW (ultra-low) | 1.5–2 kW | N/A |
| Output Consistency | Identical every piece | Good with calibration | Varies by operator |
| Operator Dependency | 1 operator, full line | 1–2 operators | Highly skill-dependent |
| Ideal For | Luxury jewelry brands | Standard packaging | Prototypes / small runs |
What Global Packaging Manufacturers Say
Verified feedback from B2B customers across print, packaging and jewellery sectors.
“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.”
“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.”
“Until now everything is perfect! We are very satisfied with the machine quality and the after-sales support from the Kylin team.”
Frequently Asked Questions — KY-686
Answers to the most common B2B procurement questions about the KY-686 pad forming machine.
The KY-686 automates the entire pad forming process for jewelry box inserts. It applies adhesive to pad cores (foam, plastic, or cardboard), then uses a servo-driven mechanism to precisely fold and press luxury wrap materials — velvet, satin, or PU leather — around the edges with ±0.1 mm accuracy. This produces finished inserts for ring slots, watch cushions, necklace displays, and earring holders at production scale.
The KY-686 handles all standard luxury wrap materials: velvet, suede, satin, PU leather, and premium art paper. It works with foam, plastic, and cardboard cores in varying thicknesses, making it suitable for the full range of jewelry packaging insert types without additional tooling investments.
The servo motor system achieves ±0.1 mm positioning accuracy — approximately 20–30× more precise than manual forming (±2–3 mm) and 5× more precise than traditional mechanical machines (±0.5 mm). This consistency is essential for luxury brands with strict quality requirements and zero tolerance for visible defects.
Yes. The machine features an integrated auto tooth cutting system that makes precision incisions in the wrap material as it folds around inner curves and complex contours. Heart-shaped ring boxes, oval earring displays, and fully custom-profile inserts are all achievable — results that are difficult or impossible to replicate consistently using manual methods or traditional machinery.
Folding width is steplessly adjustable from 3 mm to 6.5 mm via the digital touchscreen interface. No physical tooling changes are required — operators simply input the new parameter and production resumes immediately. This makes the KY-686 ideal for facilities running multiple insert size variations across short-run and long-run production.
The KY-686 operates on a standard 220V single-phase supply and consumes only 1 kW — approximately 40% less than conventional pad forming equipment that typically draws 1.5–2 kW. This energy advantage translates directly into lower operating costs across continuous multi-shift production environments.
Every KY-686 includes a 3-year quality warranty covering all major components, free lifetime remote technical support, comprehensive video training materials, and optional on-site engineer installation available to customers worldwide. Kylin Machines maintains a global service network to support installations across all time zones.
Both machines share Kylin’s precision servo platform but are calibrated for different application scales. The KY-686 is specifically engineered for the smaller dimensions and intricate curved profiles typical of jewelry packaging inserts (ring boxes, earring holders, watch cushions). The KY-685 is optimised for larger-format applications such as iPad case covers, document folders, and bookbinding board assemblies.
The Engineering Case for Precision Jewelry Insert Automation
In luxury jewelry packaging, the unboxing experience carries as much commercial weight as the product inside. A velvet-wrapped ring slot or a satin-lined necklace display pad that shows even the smallest imperfection — a wrinkled fold, an uneven edge, or visible adhesive bleed — immediately erodes a brand’s perceived quality and can lead to costly batch rejections by major retail clients.
“The KY-686 delivers ±0.1 mm servo positioning accuracy — 20 to 30 times more precise than manual forming. For luxury jewelry packaging manufacturers, this is not a marginal improvement; it is the difference between acceptable and exceptional.”
Why ±0.1 mm Accuracy Is a Commercial Requirement
Traditional pad forming relied entirely on operator skill. Even experienced technicians working carefully can only achieve ±2–3 mm consistency. The cumulative effect across a production run of thousands of inserts is measurable quality variance — some pieces pass inspection, others do not. The KY-686’s servo motor system eliminates this variance entirely. Every single piece is formed to the same tolerance, batch after batch, shift after shift. For manufacturers supplying luxury houses with zero-defect requirements, this is not a feature — it is a procurement prerequisite.
Solving the Curved Profile Problem
One of the most persistent challenges in jewelry insert production is handling complex shapes. Heart-shaped ring boxes, oval earring displays, and custom-contoured necklace trays require material to fold smoothly around inner curves — a process where traditional methods routinely produce bunching, tearing, or unacceptable seam lines. The KY-686’s integrated auto tooth cutting system addresses this directly: precision incisions are made in the wrap material at exactly the right intervals and depths as it folds around curves, producing smooth, professional edges on profiles that were previously impractical at production volumes.
Production Flexibility Without Tooling Investment
Modern jewelry packaging operations rarely run a single insert size. The market demands product variety — different ring slot dimensions, various watch cushion diameters, multiple earring display configurations. Conventional machines require physical tooling changes between size variants, adding downtime, labour cost, and risk of setup errors. The KY-686’s steplessly adjustable folding width (3–6.5 mm) via touchscreen HMI means size changes are parameter adjustments, not mechanical operations. This capability is particularly valuable for contract packaging manufacturers serving multiple jewelry brand clients with varying specifications.
Integration Into Complete Jewelry Packaging Lines
The KY-686 is designed for integration into full production line workflows. When combined with the Fully Automatic Jewelry Box Machine KY-320A for outer box forming and the Jewelry Box Assembly Glue Machine KY-ZF-600A for box shell assembly, manufacturers achieve a fully automated end-to-end packaging production line. This integration reduces total labour requirements significantly while increasing throughput and quality consistency across the complete product.
Ready to upgrade your jewelry insert production line?
Request a technical consultation and receive a factory-direct quotation tailored to your production volume and insert specifications.
Elevate Your Jewelry Insert Production
Contact our engineering team for a personalised technical consultation and factory-direct quotation. Free demo video and sample pad available on request.
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ADDITIONAL SERVICES
Customers Meeting&Machines Training
Meeting in India
Meeting in Dubai
Trip to TurkeyTo 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
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
Hi Jacob, thanks and i let you know…
Bit until now everythimg is perfect!Mit den besten Grüßen,
28 April 2023
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
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
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
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








