Luju, founded in 1991, with extensive experience in hardware industry, specialized in stainless steel hardware for both industrial & marine applications, Our Product:Marine Hardware, Building Hardware, Industrial Hardware.Luju's policy is to provide an extensive range of high quality stainless steel products with special finish to our customers!
Our Certificate
We hold certifications such as ISO9001, DUNS, and TUV.
Production Market
Our products are exported to the USA, Latin America, Europe, and Asia.
Product Application
These products can be used in shipbuilding industry, construction industry, machinery industry, food industry, automobile industry and other fields.
Production Equipment
Our production equipment includes a forging foundry, casting foundry, horizontal die-head machine, vertical wax-injection machine, and a 5-axis CNC ultrasonic machine.
Quick Release Hinge
Luju offers a wide range of hinges in stainless steel for marine applications. Quick release hinge line can satisfy you with many shapes that you need. Constructed from high quality metal alloy or stainless steel, we can ensure quality and longevity.
Stainless Steel Table Hinge
Luju's table hinge line can satisfy you with many shapes and kinds of table hinges that you need. Constructed from high quality metal alloy or stainless steel, we can ensure quality and longevity.
Stainless Steel Offset Hinge
LUJU offers a wide range of offset hinges in stainless steel for marine and building applications. The electropolished mirror-like finish will protect the surface against corrosion in any harsh environment. LUJU's hinges is quality hardware you can depend on.
Non Mortice Stainless Steel Hinge
LUJU's electropolished non mortice hinges are manufactured of high grade stainless steel materials and exquisite technology. These stainless boat hinges provide a smooth and consistent mirror-like finish to protect the steel against corrosion in any environment.
Boat Hatch Flush Mount Hinge
Luju's flush mount hinges are are perfect where bare feet walk or where fishing lines might snag. These hinges carry a smooth, flat design that fits flush with the application.
Stainless Steel Cabinet Hinge
Luju's cabinet hinges can be used for standard hatches, small doors and lockers. We offer wide range of sizes. Our hinges come in all shapes, styles, and barrel configurations. You can use our hinges for deck hatches, console doors, transom doors, side entry doors and more.
Load-Bearing Capability
These hinges are engineered to withstand significant loads and resist deformation, even when subjected to heavy weights. This load-bearing capacity ensures that the hinges can endure frequent use without experiencing premature wear or failure. Heavy-duty hinges are essential for commercial doors that experience high traffic and need reliable support.
Enhanced Design
Many heavy-duty hinges incorporate reinforced components and design improvements, such as thicker hinge plates, hinge pins, or ball bearings. These enhancements provide added strength and durability, effectively extending the hinge's operational life. For commercial doors, these design enhancements ensure that the hinges can handle the rigorous demands of daily use.
Quality Manufacturing
The production process of heavy-duty hinges typically involves precision machining and rigorous craftsmanship. Stringent quality control measures ensure that the hinges meet exacting standards, minimizing the risk of defects or early wear. High-quality door hinges, especially those made from stainless steel, are critical for maintaining the security and functionality of commercial doors.
Corrosion Protection
Heavy-duty hinges are often coated with corrosion-resistant finishes like zinc plating, powder coating, or chrome plating. These protective coatings act as barriers against moisture, chemicals, and other corrosive elements, preserving the hinge's structural integrity over time. This is particularly important for stainless steel door hinges used in commercial doors, where exposure to harsh elements can be frequent.
|
Type |
Door hinge |
|
Brand name |
HM |
|
Model NO. |
DH-002 |
|
Material |
Aluminum |
|
Finish |
Silver, black, gold |
|
Load-Bearing |
50kg/set |
|
Radius comer |
Square corner |
|
Inner packing |
Soft foam pastic bag, color box and blister packing |
|
Standard export packing |
One piece in one plastic bag, one pair in one white box, 20 pairs in one carton |
|
Delivery day |
30 Working days |
|
Name |
Hidden door hinge |
The hinge height required is determined by the door thickness and the door width. The width of the door is important, because it affects the weight of the door. A wider door will need more load-bearing support for stability.
If the door is 1-3/8 inches thick and the width is no more than 32 inches, the hinge height is 3-1/2 inches. However, if the door is between 32 inches and 36 inches, the leaf height of the hinges must be increased to 4 inches to handle the increased weight.
|
Door thickness |
Door width |
Approximate hinge height |
|
1-3/8" |
Up to 32" |
3-1/2" |
|
1-3/8" |
32"-36" |
4" |
|
1-3/4" |
Up to 36" |
4-1/2" |
|
1-3/4" |
36"-48" |
5" |
|
1-3/4" |
Over 48" |
6" |
|
2", 2-2/4", 2-1/2" |
Up to 42" |
5" (Commercial duty) |
|
2", 2-1/4", 2-1/2" |
Over 43" |
6" (Commercial duty) |
Design and Programming
The process begins with designing the hinge using computer-aided design (CAD) software. Once the design is finalized, the specifications are translated into machine-readable instructions using CAM (Computer-Aided Manufacturing) software. These instructions dictate the movements of the CNC machines during the manufacturing process.
Material Selection
CNC hinges are typically crafted from durable materials such as steel, stainless steel, or brass. The selection of material depends on factors such as the desired strength, corrosion resistance, and aesthetic appeal of the hinge.
Precision Machining
CNC machining centers equipped with specialized tooling are used to precisely cut, shape, and drill the hinge components from raw material stock. The CNC machines follow the programmed instructions to ensure accuracy and consistency in every detail of the hinge.
Surface Finishing
After machining, the hinge components may undergo surface finishing processes such as polishing, plating, or powder coating to enhance their appearance and durability. Surface finishing also helps protect the hinges from corrosion and wear over time.
Assembly
Once the individual components are manufactured and finished, they are assembled into complete hinges. This may involve attaching pins, springs, or other moving parts as required by the hinge design.
Quality Control
Throughout the manufacturing process, rigorous quality control measures are implemented to ensure that each hinge meets the specified standards for dimensions, functionality, and appearance. This may include visual inspections, dimensional measurements, and functional testing of the hinges.
Yes, custom products are welcome. We have designed and custom made many patent products for our customers
Usually 100 pcs. For order that less than 100 pcs, please discuss with us.
60 Days.
EXW, FOB, CFR, CIF, DDU.
Yes, we could offer the sample for free charge but do not pay the the cost of freight.
T/T 30% as deposit, and 70% before delivery. We'll show you the photos of the products and packages before you pay the balance.
Generally, we pack our products in neutral white boxes and brown cartons. If you have legally registered patent, we can pack the products in your branded boxes with your authorization letter.
