Concealed Hydraulic Floor Spring Hinge 80KG Load Bearing 2-Stage Speed Control 90° Stop Auto Buffer Pivot Hinge No Dig Easy Install Hinge for Indoor Wood Aluminum Door

Heavy-Duty No-Dig Hydraulic Floor Spring HingeThis 80KG concealed hydraulic floor spring hinge is a premium solution for indoor door control, ideal for residential and commercial use. Built with high-strength aluminum alloy and stainless steel, it features superior toughness, wear and corrosion resistance, outperforming ordinary alloy hinges. The fully sealed hydraulic structure effectively prevents oil leakage, dust and moisture damage for long-term stable operation.Designed with practical 2-stage adjustable closing speed, the door quickly resets from 90° to 15° and softly buffers to lock from 15° to 0°. This dual-speed design eliminates slamming noise and avoids finger pinching risks. It supports bidirectional swivel and 90° positioning, keeping doors open stably for easy passage and ventilation with smooth operation.Featuring a no-dig, no-mortise design, this hinge requires no floor grooving or punching. It simplifies installation, saves labor costs, and protects door and floor surfaces without damage. The concealed mounting delivers a neat, minimalist look compatible with various decoration styles.With 35-80KG load capacity, this hinge fits standard indoor wooden and aluminum frame doors. It matches doors within 1000mm width, 2800mm height and 43-45mm thickness. Available in black and silver, it is perfect for homes, offices, shops and other indoor scenarios.Key FeaturesDurable Premium Build: Aluminum alloy and stainless steel construction ensures high toughness, corrosion and wear resistance for long service life.2-Speed Adjustable Closing: Dual-speed hydraulic control enables quiet, safe door closing to prevent slamming and injuries.90° Position & Bidirectional Swivel: Stable door stop design for convenient ventilation and flexible two-way smooth opening.Tool-Free Simple Installation: No digging or mortising needed, saving time and protecting wall and floor integrity.Sealed Protective Structure: Fully sealed hydraulic system is waterproof, dustproof and leak-proof for stable daily use.Wide Application: Suitable for all compatible indoor wooden doors and aluminum frame doors for home and commercial use.Product SpecificationsModel: JLY-200Material: Aluminum Alloy + Stainless SteelColor: Black / SilverLoad Capacity: 35KG - 80KGMax Door Width: ≤ 1000mmMax Door Height: ＜ 2800mmDoor Thickness: 43mm - 45mmClosing Mode: 90°-15° Fast Closing, 15°-0° Buffer LockingCompatible Doors: Indoor Wooden & Aluminum Frame DoorsInstallation: Concealed No-Dig MountPackage Content1 x Floor Spring Hinge with Complete Installation AccessoriesWarm NotesDo not twist the pivot shaft before installation to avoid internal hydraulic damage. Adjust the valve properly after installation, do not fully unscrew it to prevent oil leakage. Slight measurement errors and color deviation may exist. Import duties and customs fees are borne by buyers.