90 Degree Bend Cabinet Hinge

For buyers sourcing concealed enclosure hinges from Yitai Lock, the 90 Degree Bend Cabinet Hinge CL275 series covers two opening angles across its three models — 120° on the CL275-1, and 90° on both the CL275-2 and CL275-3. The CL275-2 and CL275-3 share the same horizontal footprint but differ in their lateral dimensions, so the choice between them comes down to the specific door panel and frame geometry of your enclosure. All three use a Φ5 mm barrel with a Φ4 open retaining ring for pin retention.

Model Options and Dimensions

The 90 Degree Bend Cabinet Hinge CL275-1 is the largest model, with an overall length of 70 mm and a hinge body of 60 mm. The inner span between mounting wings is 53 mm, the barrel diameter is Φ5 mm, and the two mounting holes are Φ5.5 mm with a Φ9.5×90° countersink. The CL275-1 opens to 120°, making it the right pick where a wider door swing is needed.

The CL275-2 and CL275-3 both open to 90° and share a 53 mm inner span and Φ5 mm barrel, but differ in their overall dimensions and hole configurations. The CL275-2 has an overall length of 67 mm with a 59 mm body and uses two Φ5.5 mm holes alongside two Φ10.5×90° countersink holes. The CL275-3 has a 60 mm body and overall length of 67 mm with two Φ5.2 mm mounting holes. The lateral profile of the CL275-3 also differs from the CL275-2, with a door frame engagement depth of 19.3 mm and a total lateral height of 20.2 mm — details that matter when fitting the 90 Degree Bend Cabinet Hinge into a specific frame channel.

Structure and Installation

All three models of the 90 Degree Bend Cabinet Hinge are installed by welding. The bent wing design means one side of the hinge seats against the inside of the door frame channel and the other against the door panel, with the hinge barrel sitting recessed within the frame profile rather than on the cabinet face. This concealed positioning is what separates the CL275 from a standard surface-mounted hinge.

The 90 Degree Bend Cabinet Hinge uses a Φ4 open retaining ring on all three models to keep the pin in place during operation. The door leaf can be removed by disengaging the retaining ring and pulling the pin — no tools required — which is useful for cabinets that need occasional door removal for internal access or maintenance. The welded installation keeps the fixed wing permanently anchored to the frame, so repeated door removal doesn't affect the mounting.

Material and Surface Treatment

The 90 Degree Bend Cabinet Hinge is available in galvanized carbon steel and 304 stainless steel. The carbon steel version carries a zinc plating that provides adequate corrosion protection for indoor enclosures in dry or climate-controlled environments. It's the standard choice for most electrical cabinet and distribution box applications where the installation is indoors and humidity is not a factor.

The 304 stainless steel 90 Degree Bend Cabinet Hinge is the better option when the enclosure is exposed to moisture, outdoor conditions, or environments with elevated humidity. Stainless steel also tends to get specified when the cabinet exterior finish is a consideration, since it holds its appearance better over time than galvanized carbon steel in challenging conditions. Both materials are available across all three CL275 models.

FAQ

Q1: What are the three models in the CL275 series and how do they differ?

The CL275 series includes the CL275-1, CL275-2, and CL275-3. The CL275-1 opens to 120° and is the largest model at 70 mm overall length. The CL275-2 and CL275-3 both open to 90° and share the same horizontal dimensions, but differ in their lateral profile and mounting hole configuration. All three are welded hinges with a Φ5 mm barrel.

Q2: What is the opening angle of each model?

The CL275-1 opens to 120°. The CL275-2 and CL275-3 both open to 90°. The opening angle is fixed by the bend geometry of the hinge wings and cannot be adjusted after installation.

Q3: How is the CL275 hinge installed?

All three CL275 models are installed by welding. The bent wing is welded to the cabinet frame or door panel during fabrication. There is no screw-mount option in this series.

Q4: How is the hinge pin retained and can the door be removed?

All CL275 models use a Φ4 open retaining ring to keep the pin in place. To remove the door, disengage the retaining ring and pull the pin — no tools are needed. The welded base stays fixed to the frame, so the door can be removed and reattached without affecting the hinge mounting.

Q5: What materials are available?

The CL275 bend cabinet hinge comes in galvanized carbon steel and 304 stainless steel. Carbon steel suits indoor, dry enclosures; stainless steel is the better choice for outdoor installations or environments with regular moisture exposure.

Q6: What is the difference between CL275-2 and CL275-3?

Both models share the same horizontal dimensions and 90° opening angle, but their lateral profiles differ. The CL275-3 has a door frame engagement depth of 19.3 mm and a lateral height of 20.2 mm, while the CL275-2 has different lateral clearances suited to a different frame channel geometry. Select based on your specific door frame and panel dimensions.