| Product Name: | Round Spring Loaded Hinge | Product Code: | PD144 |
| Color: | Nickle,welcome to customize | Material: | Brass |
| Length: | 51MM | Width: | 34MM |
| Opening Angle: | 180 Degree | Surface Treatment: | Hanging Plating Or Rolling Plating |
| Weight: | 15Gram | Sample: | Free&Available |
A Round Spring Loaded Hinge is a mechanical device designed to connect two components—specifically the lid and base of a wooden box—allowing rotational movement with the added benefit of a built-in spring mechanism that assists in opening or closing. Unlike typical hinges, the spring mechanism either pushes the lid open (spring-open), pulls it shut (spring-close), or provides precise controlled movement for both directions.
The “round” aspect refers to the cylindrical, barrel-like shape of the hinge body, which fits neatly into pre-drilled holes. This design is not only robust and reliable, but also aesthetically pleasing for premium, modern, and compact wooden box projects.
Automatic Functionality:
The built-in spring ensures the box lid opens or closes automatically (depending on configuration) for convenience, added safety, and premium feel.
Cylindrical, Concealed Design:
The round barrel sits flush or hidden within the wood, offering a smooth, seamless exterior with no protruding hardware.
Smooth and Silent Movement:
Engineered for frictionless, noise-free action—ideal for jewelry boxes or luxury packaging.
Exceptional Durability:
Constructed from quality materials such as solid brass, stainless steel, or nickel-plated steel, suitable for frequent use.
Versatility in Mounting:
Used in small, medium, or large wooden box projects; compatible with a variety of lid weights and movement requirements.
Jewelry Boxes:
For lids that lift gently and stay open during use, avoiding slamming or pinched fingers.
Presentation & Gift Boxes:
A spring-loaded “reveal” effect elevates product value for luxury items like pens, watches, medals, or collectibles.
Instrument Cases:
Ensures safe, controlled opening/closing in musical instrument, camera or measuring equipment cases.
Keepsake and Memory Chests:
Adds an extra layer of refinement and longevity to valuable heirloom storage.
Display Boxes & Cabinets:
Enables self-opening or self-closing displays in retail, museums or exhibitions.
Custom Furniture, Snuff, and Tea Boxes:
Perfect for DIY woodworkers and professionals alike seeking smooth, automated lid control in creative projects.
A Round Spring Loaded Hinge typically comprises:
Cylindrical Barrel:
A robust round tube, usually 6mm to 14mm in diameter and 10mm to 40mm in length (varies by use), which houses the pivot pin and spring.
Central Pivot Pin:
The steel/brass rod running through the barrel that provides a smooth rotation point for the hinge leaves.
Coiled Metal Spring:
The core difference from ordinary barrel hinges, this spring stores energy and applies force either to open or close the lid automatically.
Hinge Leaves:
The small flanges, pins, or tabs that anchor the hinge into the wood of the lid and base.
Once installed, rotating the lid compresses or extends the spring. Upon release, the spring returns to its static position, moving the box lid accordingly.
These force the lid upwards or outwards when released, often for “pop-up” displays or easy-access boxes.
Here, the hinge closes the lid automatically when released—ideal for jewelry boxes, instrument cases, and boxes requiring secure closure.
Provide controlled tension for both opening and closing, adding a “soft-close” or “stay-open” functionality.
Allow the installer/user to modify the spring force, tailoring the action for different lid weights and movement speed.
Designed for very small boxes and precision wooden crafts. Diameters as low as 3-5mm available for special projects.
Enhanced User Experience:
The spring mechanism adds a “wow” factor and convenience, engaging every time the box is opened or closed.
Finger Safety:
Prevents accidental slams, crucial for children’s memory chests or valuable jewelry storage.
Professional Appearance:
Concealed design preserves clean box aesthetics with less exposed hardware.
Security:
Spring-loaded self-close hinges help keep lids shut, reducing risk of loss or dust contamination.
Increased Value:
Automating lid movement creates a premium, high-tech impression—vital for luxury and corporate gift boxes.
Lower Maintenance:
Engineered for thousands of cycles without wear, minimizing long-term servicing compared to standard hinges.
1. Solid Brass:
2. Stainless Steel:
3. Nickel-Plated Steel:
4. Alloy or Zinc-Plated:
Surface Options:
| Parameter | Range/Option |
|---|---|
| Diameter | 6mm, 8mm, 10mm, 12mm, 14mm (custom sizes on request) |
| Length | 10mm–40mm |
| Material | Brass, Stainless Steel, Nickel-Plated Steel |
| Spring Force | 0.3N–5N (adjustable range for some models) |
| Opening Angle | 90°–180°, depending on design |
| Screw Holes | None (friction/press-fit), some with tabs for fixing |
| Life Cycle | 20,000+ open/close cycles |
| Package |
Pair-packed, bulk, or with matching screws |
| Feature | Round Spring Loaded Hinge | Standard Barrel Hinge | Butt/Piano Hinge | Concealed (Euro) Hinge |
|---|---|---|---|---|
| Spring Action | Yes (auto open/close) | No | No | Usually no (except specialty) |
| Appearance (Closed) | Hidden/minimal | Hidden | Visible | Totally hidden (large) |
| Ease of Installation | Moderate (needs accuracy) | Moderate | Easy/moderate | Hard |
| User Experience | “Wow”/premium | Subtle, basic | Standard | High-end for large doors |
| Typical Box Size Use | Small–Large | Tiny–Medium | Medium–Large | Large cabinet only |
| Price | Mid–high | Low-mid | Low–mid | High |
Select Correct Size and Type
Mark and Drill Holes
Test Fit
Secure Hinges
Test Action
Tips:
Regular Dusting:
Wipe hinge area occasionally to prevent dirt accumulation.
Lubrication:
No heavy maintenance required—if necessary, add a tiny drop of machine oil to the spring/pivot.
Avoid Force:
Do not slam or force box lids—overloading may weaken the spring action.
Check Fit Yearly:
For high-use boxes, ensure hinges remain tight and spring function is smooth.
Size and Spring Strength:
Custom diameters and spring forces for unique lid weights and motion speeds.
Materials and Finishes:
Select solid brass, stainless, black, gold, bronze, or custom color to match box style or brand.
Brand Engraving:
Logo or model number laser marked for original luxury packaging and brand products.
Decorative & Functional Options:
Combine round spring hinges with slow-close, soft-open mechanisms, or integrate magnetic closure.
Bulk Packaging:
Boxed by pair, in bulk, or coordinated with screws, soft pad inserts, or other hardware.
Eco Compliance:
All major finishes available in RoHS/REACH-compliant, lead-free, or environmentally safe formats.
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| Attribute | Example Value / Range |
|---|---|
| Hinge Type | Spring-loaded round barrel |
| Diameter | 8mm / 10mm / 12mm |
| Length | 20mm / 25mm / 30mm |
| Material | Brass, stainless steel, nickel-plated |
| Spring Action | Self-open or self-close |
| Opening Angle | 90°, 120°, 180° |
| Finish | Polished, antique, satin, black |
| Application | Jewelry, gift, keepsake boxes |
| Life Cycle | 20,000+ cycles |
| Custom | Size, finish, engraving, packaging |
Micro and Slim Form Factors:
Rise in demand for ultra-small spring hinges for earring, pill, and micro-gift boxes.
Soft-Close Technology:
Integration of oil-damped springs for nearly silent, slow motion lid support.
Luxury Presentation Packaging:
Spring action becomes a feature for high-value promotional boxes and collectibles.
Sustainable Manufacturing:
Preference for brass and eco-friendly plating, with RoHS and REACH compliance as standard.
Brand Customization:
Laser branding and custom anodized colors now popular among packaging and gift brands.
| Box Type | Hinge Size (Typical) | Action | Finish | Quantity Needed |
|---|---|---|---|---|
| Small Jewelry Box | 6–8mm × 15–20mm | Self-close | Brass/Nickel | 2 |
| Medium Gift Box | 8–10mm × 20–25mm | Self-open | Satin/Gold | 2–3 |
| Large Keepsake Box | 10–14mm × 25–35mm | Self-close | Antique | 3 |
| Instrument Case | 10–12mm × 25–30mm | Soft-close | St. Steel | 2–4 |
| Memory Chest | 12–14mm × 30–40mm | Custom | Black | 2–3 |
Specialized Production:
Decades of experience in precision hinge engineering for the packaging, jewelry, gifting, and premium woodcraft sectors.
Guaranteed Quality:
Every hinge batch is tested for spring force consistency, finish quality, alignment, and life cycle.
Customization Leader:
Whether micro-hinges for tiny boxes or branded gold-plated hardware, we create your ideal solution.
Professional Support:
Fast, multilingual responses; technical drawings; OEM/ODM capabilities; and aftersales guarantees.
One-Stop Service:
Supply coordinated hinges, screws, closure magnets, and support tools—ready for assembly lines or DIY projects.
Ready to elevate your wooden box with a round spring loaded hinge—bringing luxury, ease of use, and modern appeal to every opening?
Contact us for fast quotes, free samples, technical advice, OEM/ODM inquiries, and dedicated support for your next jewelry box, packaging, or woodworking project.
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