DH1031 4×3 Inch Stainless Steel Lift-Off Door Hinge Removable Door Hinge for Commercial Doors

Product Introduction

The DEGOL DH1031 4×3 Inch Stainless Steel Lift-Off Door Hinge is an architectural door hardware solution designed for applications requiring a detachable hinge arrangement.

Featuring a two-part lift-off construction, the DH1031 allows a compatible door leaf to be removed vertically from its hinge supports when the door is correctly positioned and the installation permits removal.

Unlike a conventional fixed butt hinge, a lift-off hinge is designed so that the door-side and frame-side hinge components can separate without requiring the complete hinge assembly to be unscrewed.

The DH1031 is presented in a nominal 4×3 inch format, with a technical reference drawing showing approximate dimensions of 100 mm in height, 75 mm in open width and 2.5 mm in leaf thickness.

The illustrated design incorporates eight countersunk mounting holes, with four holes on each hinge leaf, and a satin-finished metallic appearance.

This hinge style can be considered for compatible wooden doors, metal doors, commercial interior doors, service doors and architectural projects where convenient door removal is beneficial.

For international door hardware distributors, building contractors, door manufacturers and wholesale importers, DEGOL provides product specification inquiries, sample requests, OEM / ODM customization discussions and bulk purchasing services.

Buyers should confirm the actual DH1031 material grade, handing arrangement, hinge capacity and installation dimensions before ordering.

Product Definition

What Is a Stainless Steel Lift-Off Door Hinge?

A stainless steel lift-off door hinge is a type of mechanical hinge designed to allow a door leaf to be separated from its frame by lifting it from the installed hinge assembly.

The hinge consists of two cooperating sections connected through a hinge barrel or pin arrangement.

When correctly installed, the hinge supports the door's normal swinging movement while providing the additional capability of removing the door without dismantling all mounting screws.

How Does a Lift-Off Door Hinge Work?

A typical lift-off hinge operates through a separable hinge barrel arrangement.

One section of the hinge is secured to the door frame, while the corresponding section is secured to the door leaf.

The two sections engage to form the hinge's pivoting connection.

When removal is required, the door can be lifted in the permitted direction until the hinge sections disengage, provided that sufficient clearance is available and other door hardware does not obstruct removal.

Lift-Off Hinge vs. Standard Butt Hinge

Lift-off hinges are commonly available in left-hand and right-hand configurations, and the correct orientation is important for proper operation.

Product Specification

Technical Drawing & Dimensions

The DH1031 reference engineering drawing includes front, side and hinge barrel section views, together with an illustrative product image.

It identifies the principal dimensions of the lift-off hinge and the position of the mounting holes.

Reference Dimensions from the Supplied Drawing

1. Overall Height – 100 mm

The front view indicates an approximate vertical hinge dimension of 100 mm.

This is the nominal 4-inch size category used in the supplied product description.

2. Open Width – 75 mm

The drawing indicates an approximate overall open hinge width of 75 mm.

This is associated with the nominal 3-inch open width category.

3. Leaf Thickness – 2.5 mm

The side and sectional reference views show a leaf thickness of 2.5 mm.

This dimension should be verified before calculating hinge mortise depth or selecting mounting hardware.

4. Eight Countersunk Mounting Holes

The front view shows four countersunk holes on each hinge leaf, for a total of eight.

The exact countersink diameter, fixing screw size and hole center spacing remain unverified.

5. Lift-Off Barrel Arrangement

The hinge features an interrupted barrel construction designed to permit separation of the hinge sections by lifting.

The detailed pin dimensions, barrel clearances and permissible lifting direction must be confirmed using the actual DH1031 technical specification.

6. Hinge Handing

The comparison reference identifies a right-hand hinge. Lift-off hinge handing may affect installation orientation and whether a door can be lifted from the desired side.

Technical Drawing Requirements

For production and installation, wholesale buyers should request the following technical documentation:

• Confirmed DH1031 front and side drawings

• Full hinge height and open width

• Exact leaf thickness

• Mounting hole diameters and center distances

• Hinge barrel and pin dimensions

• Handing identification

• Installation clearance requirements

• Door weight and hinge quantity guidance

• Material and finish specifications

Engineering Notice: The supplied image explicitly states “Reference Dimensions — Verify Before Manufacture” and “Not to Scale.” It must not be used as a final machining or manufacturing drawing without confirmation.

Material & Surface Finish

Stainless steel is commonly selected for architectural door hinges because of its mechanical suitability, appearance and corrosion resistance under appropriate service conditions.

The DH1031 is identified as a stainless steel lift-off hinge, and the supplied market reference image shows a satin metal finish.

However, the exact stainless steel grade of DH1031 should be verified before the product is advertised as SUS304 or SUS316.

Satin Stainless Steel Finish

A satin metal appearance provides a clean architectural look that can coordinate with stainless steel door handles, locks, bolts and other building hardware.

Stainless Steel Grade Options

Buyers may ask DEGOL whether SUS201, SUS304 or SUS316 options are available for DH1031.

These grades should not be treated as interchangeable because they have different material characteristics and corrosion performance.

Maintenance Recommendations

For routine cleaning, use a soft cloth and an appropriate mild detergent.

Avoid abrasive materials and aggressive chloride-containing cleaning products that may damage or stain stainless steel surfaces.

Applications

The DEGOL DH1031 Lift-Off Door Hinge can be considered for architectural and building hardware projects requiring detachable door support.

1. Commercial Interior Doors

The hinge format may be used on compatible commercial doors where removable door panels support installation or maintenance activities.

2. Office Buildings

Lift-off hinges can be considered for suitable office doors, maintenance access points and service-area entrances.

3. Hotel and Hospitality Projects

The satin metal appearance may coordinate with modern hospitality door hardware where the detachable configuration is appropriate.

4. Industrial and Utility Doors

Removable hinge designs may be useful for certain service-area and utility doors, subject to load and safety requirements.

5. Building Maintenance Areas

The lift-off design can support easier door removal when access is required for maintenance, equipment movement or door replacement.

6. Residential Interior Doors

The DH1031 may be considered for suitable residential doors with a compatible hinge arrangement and adequate removal clearance.

7. Architectural Door Manufacturing

Door manufacturers can evaluate the nominal 4×3 inch format for factory-prepared door sets after confirming the technical dimensions.

8. Wholesale Door Hardware Supply

The hinge category is relevant to hardware distributors, importers and OEM brands developing coordinated stainless steel door hardware ranges.

Suitable Door Types

Security Consideration

Because a lift-off hinge permits door removal under suitable conditions, the installation must be evaluated to ensure that unauthorized lifting does not compromise the security of locked or exterior doors.

Installation Guide

Step 1 – Confirm Door Specifications

Check the door weight, dimensions, construction, opening direction and number of required hinges.

Step 2 – Select the Correct Hinge Handing

Determine whether the installation requires a left-hand or right-hand lift-off hinge, using the manufacturer's handing diagram.

Step 3 – Verify Technical Dimensions

Use the confirmed DH1031 technical drawing to check the hinge dimensions, hole positions and installation clearances.

Step 4 – Mark the Hinge Positions

Identify the hinge locations on the door edge and frame according to the door manufacturer's requirements.

Step 5 – Prepare the Mounting Surfaces

Where mortised installation is required, prepare hinge recesses to match the verified leaf dimensions and thickness.

Step 6 – Install the Frame-Side Hinge Sections

Secure the appropriate hinge sections to the door frame using approved fasteners.

Step 7 – Install the Door-Side Hinge Sections

Attach the corresponding sections to the door leaf and check that the hinge axes align.

Step 8 – Mount the Door

With adequate support and assistance, position and lower the door-side hinge sections onto the corresponding frame-side hinge components, following the specified lift-off direction.

Step 9 – Test Door Movement

Open and close the door to confirm smooth swing, proper clearance and secure hinge engagement.

Step 10 – Complete Final Inspection

Check all fasteners, hinge alignment, any retention components and the ability to remove or retain the door as intended.

Installation Safety: Heavy doors should be handled with suitable lifting equipment. The hinge quantity and loading arrangement must be based on verified manufacturer capacity, not appearance or nominal hinge size alone.

Product Advantages

1. Lift-Off Removable Design

The separable hinge structure allows compatible doors to be removed without unscrewing the entire hinge assembly.

2. Stainless Steel Construction

The product is identified as a stainless steel hinge, making it relevant to architectural hardware buyers seeking metal door fittings.

3. Nominal 4×3 Inch Format

The reference dimensions correspond approximately to the familiar 4×3 inch hinge format.

4. Eight-Hole Mounting Design

The illustrated arrangement includes eight countersunk mounting holes, supporting conventional screw-fixed installation when appropriate fasteners are used.

5. Satin Metallic Appearance

The reference finish provides a clean and professional look suitable for coordinated door hardware collections.

6. Maintenance and Door Replacement Convenience

Lift-off hinges can facilitate door removal for approved maintenance or replacement activities.

7. Multiple Architectural Applications

The hinge category can be considered for residential, commercial and selected utility door projects.

8. Wholesale Procurement Support

DEGOL offers direct inquiry channels for product dimensions, materials, finish options, samples and bulk orders.

9. OEM / ODM Options

Customers may discuss branded packaging, handing variants and other feasible configuration requests with DEGOL.

OEM / ODM Service

DEGOL Hardware welcomes OEM and ODM inquiries for architectural door hinge products.

Customization requests for DH1031 can be reviewed according to design requirements, material availability, production capabilities and order quantities.

OEM / ODM Inquiry Requirements

Customers should provide the target hinge dimensions, material grade, handedness, required load capacity, surface finish, order quantity and destination market.

Packaging & Order Information

For accurate wholesale quotations, buyers should provide the expected quantity, preferred material grade, required hinge handing, finish requirements, delivery destination and any project performance specifications.

Factory Capability

Jiangmen Degol Hardware Co., Ltd. – Architectural Door Hinge Manufacturer & Supplier in China

DEGOL Hardware is a China-based architectural hardware supplier offering products for residential, commercial and building renovation applications.

Its product range includes door hinges, handles, mortise locks, cylinders, bolts, door closers and associated architectural door fittings.

Architectural Door Hinge Sourcing

DEGOL supports buyer inquiries across multiple door hinge types for different architectural applications.

Stainless Steel Hardware Product Range

Customers can explore matching stainless steel hardware categories to develop coordinated building hardware product collections.

Wholesale and Project Procurement

International importers, distributors, door manufacturers and project contractors can inquire about available models, quantities and quotation terms.

OEM / ODM Service

DEGOL accepts customization discussions covering branding, materials, surface finishes and packaging requirements, subject to production feasibility.

Technical Documentation

Buyers can request confirmed product drawings, material specifications, hinge handing details and supported door weight information.

International Business Contact

Company: Jiangmen Degol Hardware Co., Ltd.

Website: degolhardware.com 

WhatsApp: +86 13725946499

Email: info@degolhardware.com

FAQ – DH1031 Stainless Steel Lift-Off Door Hinge

Q1: What is the DEGOL DH1031 Lift-Off Door Hinge?

The DH1031 is a nominal 4×3 inch stainless steel lift-off door hinge designed for detachable door hinge applications. The supplied reference drawing shows a two-part barrel arrangement and eight countersunk mounting holes.

Q2: What does a lift-off door hinge do?

A lift-off hinge permits a compatible door to be lifted away from its installed hinge supports when the door is correctly positioned and sufficient clearance is available.

Q3: What are the dimensions of DH1031?

The supplied reference drawing indicates an overall height of approximately 100 mm, an open width of approximately 75 mm and a leaf thickness of approximately 2.5 mm. These values require manufacturer verification before production or installation.

Q4: Is DH1031 made from SUS304 stainless steel?

The illustration identifies SUS304 as the material of a market reference model. The actual DH1031 stainless steel grade must be confirmed with DEGOL.

Q5: How many mounting holes does the DH1031 hinge have?

The provided drawing shows eight countersunk mounting holes, with four holes per leaf.

Q6: Is DH1031 a left-hand or right-hand hinge?

The market reference identifies a right-hand configuration. The actual available handing options should be confirmed before ordering.

Q7: Can DH1031 be used on wooden doors?

It may be suitable for wooden doors when the hinge capacity, fasteners, installation dimensions and door construction are compatible.

Q8: Can DH1031 be installed on metal doors?

Metal door installation may be possible with appropriate reinforcement, mounting preparation and verified hardware capacity.

Q9: How much weight can DH1031 support?

The maximum door weight rating has not been verified. Capacity depends on the hinge design, number of hinges, door dimensions, fasteners and installation conditions.

Q10: Is DH1031 suitable for commercial doors?

It may be suitable for compatible commercial doors when the hinge capacity, handing, usage conditions and relevant requirements are satisfied.

Q11: Can the hinge be removed without unscrewing it?

A properly designed and installed lift-off hinge permits door removal by separating the hinge sections through the intended lifting movement, provided that no additional door hardware prevents removal.

Q12: Is this hinge suitable for fire-rated doors?

Fire-door suitability requires specific evidence that the selected hinge is appropriate for the approved fire-rated door assembly. The supplied reference drawing does not establish fire certification.

Q13: What surface finish is available?

The image shows a satin stainless steel reference finish. Actual DH1031 finish options should be confirmed with DEGOL.

Q14: Does DEGOL offer OEM / ODM lift-off hinges?

DEGOL accepts OEM and ODM inquiries covering branding, material requirements, finishes, packaging and feasible product customizations.

Q15: Can I order DH1031 hinges in bulk?

Wholesale buyers can contact DEGOL for MOQ, samples, product configuration details and volume quotations.

Q16: How can I request a wholesale quotation for DH1031?

Contact DEGOL Hardware through WhatsApp, email or the official website. Include the DH1031 model, quantity, required handing, material grade, surface finish and shipping destination.

Contact DEGOL – Request a Wholesale Quote