MINVEE Wholesale 3-Inch Hole-Free Bridge Frog Cabinet Hinge (Non-Hydraulic)
Product Overview
This 3-Inch Frog Hinge in Bulk is a versatile surface-mounted hardware solution engineered for thin cabinet doors, aluminum-framed panels, caravan cabinetry, and modular DIY furniture where cup drilling is impractical. Featuring an innovative bridge-type scissor linkage structure, this hinge mounts directly onto panel surfaces using standard screws, completely eliminating the need to bore a 35 mm hinge cup hole. Precision-stamped from cold-rolled steel with a bright electroplated nickel finish, it measures 77 mm in overall length and 33 mm in width. Operating on a non-hydraulic mechanical joint mechanism, it is supplied in bulk for wholesale distributors and furniture factory assembly lines.
Technical Specifications
| Specification Parameter | Technical Standard / Details |
| Product Category | 3-Inch Hole-Free Bridge Type Frog Hinge Series |
| Installation Style | Surface Mount / Hole-Free (No Cup Drilling Required) |
| Overall Dimensions | Length 77 mm | Width 33 mm | Closed Height 19.5 mm |
| Left Base Footprint | Base Width 30.5 mm | Screw Hole Pitch 14.5 mm |
| Right Base Footprint | Base Width 28.5 mm | Screw Hole Pitch 12.5 mm |
| Vertical Hole Spacing | 23.5 mm Center-to-Center Distance |
| Dampening / Closing Type | Non-Hydraulic / Standard Mechanical Free Swing |
| B2B Procurement Options | Available for Wholesale & Bulk OEM Supply (In Bulk Orders) |
| Primary Material | Cold-Rolled Steel / Iron |
| Surface Finish | Multi-Layer Electroplated Nickel Finish |
Key Technical Features
Hole-Free Surface Mounting: Eliminates the need for factory CNC cup routing or manual hole drilling. Installers simply align and fasten the hinge onto panel surfaces with screws, drastically reducing preparation time.
Compact 3-Inch Bridge Architecture: Overall footprint of $77\text{ mm} \times 33\text{ mm}$ makes it ideal for thin cabinet doors, campervan millwork, small shoe racks, and lightweight storage boxes.
Non-Hydraulic Mechanical Operation: Smooth, friction-free scissor joint movement without hydraulic cylinders, providing simple, trouble-free mechanical performance without any risk of fluid leaks over long service lives.
Multi-Hole Adjustability Slotted Flanges: Base plates feature elongated screw slots, allowing subtle alignment adjustments during surface fastening.
Durable Nickel-Plated Steel Construction: Stamped from cold-rolled steel with a clean electroplated nickel coating for corrosion resistance and clean industrial aesthetics.
Wholesale Bulk Packaging Integration: Tailored for high-volume B2B distribution with cost-optimized master carton packaging for global export.
Frequently Asked Questions (FAQ)
Q1: What is the main advantage of a Hole-Free Frog Hinge over traditional cabinet hinges?
A: Traditional cabinet hinges require a 35 mm diameter cup hole routed into the door panel. Hole-free frog hinges screw directly onto the door surface without any cup routing, making them ideal for thin panels, glass/aluminum frame doors, and quick DIY repair work.
Q2: What are the exact dimensions for mounting hole layout?
A: The hinge total length is 77 mm with a 33 mm width. The left base plate is 30.5 mm wide with a 14.5 mm horizontal screw pitch; the right base is 28.5 mm wide with a 12.5 mm pitch. Vertical screw pitch across both sides is 23.5 mm.
Q3: Does this 3-inch frog hinge include a hydraulic soft-closing damper?
A: No, this 3-inch model is a non-hydraulic mechanical frog hinge. It provides free mechanical swinging action without hydraulic damping, making it a lightweight, highly economical choice for volume procurement.
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