RY8005 5-Inch Hydraulic Hinge: Sizes, Routing and Door Limits

Updated 2026-11-09 · RAYEN 雷茵

What is it?

A butt hinge with a thick knuckle that holds a hydraulic closing unit. It closes the door by itself, so a timber or metal door within its limits needs no separate closer. The photos show it in six finishes: Brushed Gunmetal, Matt Black, Antique Bronze, Satin Gold, Antique Yellow Brass and Matt White. The finishes are anodised or electroplated.

Which leaf width do you need?

There are two drawings, one for each leaf.

• 34mm leaf: overall 138 × 34mm.
• 30mm leaf: overall 132 × 30mm.

Both share the Ø22.2mm knuckle. Choose the narrower leaf when the frame or door edge leaves little room beside the knuckle, and the wider one when you want more screw spread. Tell us which, because the routing follows the leaf.

How is it routed?

The listed routing is 140mm × 34mm × 4mm. You can cut 4mm deep in both the frame and the door leaf, or 8mm deep in the door leaf alone. Splitting the depth keeps both cuts shallow. Putting it all in the door leaves the frame untouched, which helps on a finished or thin frame. The routing figure is written for the 34mm leaf, so ask for the 30mm drawing before cutting for the narrow leaf.

The photos show an arrow on one leaf. Ask us how it must face on your door before you fit the first one.

How many hinges does a door need?

This is the useful part of the RY8005 listing, because it ties the hinge count to door size.

• One plain barrel and one hydraulic: door up to 2000mm high and 800mm wide.
• Two hydraulic: up to 2200mm high and 900mm wide, and up to 55kg.
• Three hydraulic: up to 2400mm high and 1200mm wide, and up to 75kg.

No weight is listed for the plain-and-hydraulic set, so confirm that one with us.

Which function do you want?

RY8005 is offered as a silent hinge, a latching hinge, or a silent latching adjustable hinge. Silent means a quiet close. Latching means it carries the door into the latch at the end of the swing. The adjustable version combines both. Name the function on the order. The hold-open and closing speed guide compares other self-closing hardware.

Where can it be used?

The listed working range is -20°C to 40°C. For an unheated porch in a cold winter, or a hot outbuilding, tell us the site first.

How does it compare with RY8006?

RY8006 is the 6-inch model: 157 × 36mm or 157 × 30mm, a Ø23.8mm knuckle, and routing of 158mm × 36mm × 4mm. It carries 75kg on two and 100kg on three, with the same door-size table. It holds open from 90° to 180° with a positive stop at 160°, and it comes as the silent latching adjustable hinge only.

Two worked examples

A bedroom door

2050mm high, 800mm wide, 40kg. Two RY8005 hydraulic hinges cover it: up to 2200mm, 900mm and 55kg. One plain and one hydraulic also cover the size, so ask us about the weight on that set if you want to save a unit.

A heavier study door

2100mm high, 850mm wide, 70kg. Two RY8005 hinges stop at 55kg. Fit three RY8005, up to 75kg, or two RY8006, up to 75kg, which saves a recess.

What is the next step?

Send the door height, width, weight and frame material to [email protected], with the leaf width and function you want. We return the drawing for that leaf and confirm the set. For a quick question about one door, WhatsApp the factory owner. The number is on the contact page. The door hinge selector compares it with the rest of the range.

Open the selection tool：Concealed Hinge Selector→