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Hinges For Heavy Load, Stainless Steel / Steel
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Product Overview of Flat Hinges
Economy series Butterfly Flat Hinges For heavy object. Flat Hinges,This series of products are butterfly hinges for heavy objects, which can reach an allowable load of up to 1000N depending on the dimensions (the value when using 2 pcs)
The product material is divided into stainless steel and zinc alloy die-casting. The openings are divided into two types for flat head bolts and ultra-low head bolts. However, zinc die-casting products do not have ultra-low head bolts.Please choose carefully.
The product material is divided into stainless steel and zinc alloy die-casting. The openings are divided into two types for flat head bolts and ultra-low head bolts. However, zinc die-casting products do not have ultra-low head bolts.Please choose carefully.
Product Feature of Flat Hinges
【Features of Flat Hinges】
Butterfly Flat Hinges for heavy objects can achieve high allowable loads, and when used with high-hardness bolts, they can reach a load capacity of up to 1000N (the value when using 2 pcs).
It is recommended to use only two products for each door. Multiple products cannot achieve the effect of increasing the load. At the same time, multiple hinges will cause other interference problems caused by insufficient center-axisstraightness of the hinge.
Butterfly Flat Hinges for heavy objects can achieve high allowable loads, and when used with high-hardness bolts, they can reach a load capacity of up to 1000N (the value when using 2 pcs).
It is recommended to use only two products for each door. Multiple products cannot achieve the effect of increasing the load. At the same time, multiple hinges will cause other interference problems caused by insufficient center-axisstraightness of the hinge.
Specifications Overview of Flat Hinges
Product Material, Surface Treatment Overview of Flat Hinges:
・Flat Hinges Material Table
・Flat Hinges Material Table
| Type of Flat Hinges |  Material |  Surface Treatment | ||
| Flat head bolt type | Ultra-low head bolt type | Chain piece | Shaft | |
| C-HHSZN | C-HHSZTN | SUS304 | Buffed | - |
| C-HHSZDN | - | Zinc Castings | Chrome Plated | - |
Example Use of Flat Hinges
Butterfly Flat Hinges for heavy object Example of use
Precautions of Flat Hinges
The flat head bolt type and the ultra-low head bolt type have the same product specifications, only the mounting holes are different. Please refer to the Specification Table for details.
Butterfly Flat Hinges can't increase the allowable load by adding more products. On the contrary, during installation, it is easy to cause eccentric load due to the fact that three center axes can not be on the same horizontal line at the sametime.
It is easy for the door panel to be in a non-displacement state when standing still.
Butterfly Flat Hinges can't increase the allowable load by adding more products. On the contrary, during installation, it is easy to cause eccentric load due to the fact that three center axes can not be on the same horizontal line at the sametime.
It is easy for the door panel to be in a non-displacement state when standing still.
Dimensional Drawing of Flat Hinges
Economy series Butterfly Flat Hinges For heavy object Dimensional drawing
Refer to the Specification Table below for detailed product dimensions
Specification Table of Flat Hinges
| Part Number (Type·No.) |
| C-HHSZN50 C-HHSZDN50 C-HHSZTN50 |
| Part Number | Shape No. | W | W1 | L1 | C | C1 | t | C-HHSZN·C-HHSZDN | C-HHSZTN | Number of segments | ＊Allowable Load (N) | |||
| Type | L | N | D | d | ||||||||||
| Through Hole | Countersunk hole | |||||||||||||
| C-HHSZN C-HHSZDN C-HHSZTN | 50 | A | 50 | 35 | 20 | 6 | 14 | 5 | 4.4 | 8.6 | 8.6 | 4.6 | 3 | 350 |
| 65 | 65 | 40 | 35 | 5.6 | 10.6 | 9.6 | 5.6 | 450 | ||||||
| 75 | 75 | 50 | 40 | 8 | 16 | 6 | 6.6 | 12.6 | 10.6 | 6.6 | 650 | |||
| 100＊ | B | 100 | 60 | 30 | 5 | 850 | ||||||||
| 125＊ | 100 | 60 | 37.5 | 8 | 16 | 6 | 6.6 | 12.6 | - | - | 5 | 1000 | ||
＊ C-HHSZDN does not apply to products with dimensions L100 and 125
Dimensional Drawing
Economy series Butterfly hinge For heavy object Dimensional drawing
Refer to the Specification Table below for detailed product dimensions
Specification Table
| Part Number (Type·No.) |
| C-HHSZN50 C-HHSZDN50 C-HHSZTN50 |
| Part Number | Shape No. | W | W1 | L1 | C | C1 | t | C-HHSZN·C-HHSZDN | C-HHSZTN | Number of segments | ＊Allowable Load (N) | |||
| Type | L | N | D | d | ||||||||||
| Through Hole | Countersunk hole | |||||||||||||
| C-HHSZN C-HHSZDN C-HHSZTN | 50 | A | 50 | 35 | 20 | 6 | 14 | 5 | 4.4 | 8.6 | 8.6 | 4.6 | 3 | 350 |
| 65 | 65 | 40 | 35 | 5.6 | 10.6 | 9.6 | 5.6 | 450 | ||||||
| 75 | 75 | 50 | 40 | 8 | 16 | 6 | 6.6 | 12.6 | 10.6 | 6.6 | 650 | |||
| 100＊ | B | 100 | 60 | 30 | 5 | 850 | ||||||||
| 125＊ | 100 | 60 | 37.5 | 8 | 16 | 6 | 6.6 | 12.6 | - | - | 5 | 1000 | ||
＊ C-HHSZDN does not apply to products with dimensions L100 and 125
Part Number
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| Part Number |
|---|
| C-HHSZDN50 |
| C-HHSZDN65 |
| C-HHSZDN75 |
| C-HHSZN50 |
| C-HHSZN65 |
| C-HHSZN75 |
| C-HHSZN100 |
| C-HHSZN125 |
| C-HHSZTN50 |
| C-HHSZTN65 |
| C-HHSZTN75 |
| C-HHSZTN100 |
| Part Number | Standard Unit Price | Minimum order quantity | Volume Discount | Days to Ship | Length (mm) | Width (W) (mm) | Allowable Load (N) |
|---|---|---|---|---|---|---|---|
MYR 16.97 | 1 Piece(s) | Available | 1 Day(s) | 50 | 50 | 350 | |
MYR 24.31 | 1 Piece(s) | Available | 1 Day(s) | 65 | 65 | 450 | |
MYR 28.53 | 1 Piece(s) | Available | 1 Day(s) | 75 | 75 | 650 | |
MYR 40.03 | 1 Piece(s) | Available | 1 Day(s) | 50 | 50 | 350 | |
MYR 52.62 | 1 Piece(s) | Available | 1 Day(s) | 65 | 65 | 450 | |
MYR 64.14 | 1 Piece(s) | Available | 1 Day(s) | 75 | 75 | 650 | |
MYR 87.24 | 1 Piece(s) | Available | 1 Day(s) | 100 | 100 | 850 | |
MYR 160.64 | 1 Piece(s) | Available | 1 Day(s) | 125 | 100 | 1000 | |
MYR 38.55 | 1 Piece(s) | Available | 1 Day(s) | 50 | 50 | 350 | |
MYR 51.16 | 1 Piece(s) | Available | 1 Day(s) | 65 | 65 | 450 | |
MYR 62.06 | 1 Piece(s) | Available | 1 Day(s) | 75 | 75 | 650 | |
MYR 90.43 | 1 Piece(s) | Available | 1 Day(s) | 100 | 100 | 850 |
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Basic Information
| Flat Hinge Type | Square Plate Type | Main Body Type | Flag Hinge | Operating Environment | Standard |
|---|---|---|---|---|---|
| Mounting Method | Screw Mounting | Additional Function | Not Provided | Main Body Surface Treatment | Mirror Polishing |
- The specifications and dimensions of some parts may not be fully covered. For exact details, refer to manufacturer catalogs .
Frequently asked question (FAQ)
- Question: What is the difference between flat head bolt type hinges and ultra-low head bolt type hinges?
- Answer: The bolts that can be used to match the two processing methods are different. Ordinary flat-head bolts are normally countersunk. Please refer to the specification table on the previous page for dimensions of through holes and plate openings. Ultra-low head bolts are suitable for special screws.
- Question: Is there a thread inside the hinge? Can the screw be fixed directly?
- Answer: The hinge opening of this series of products is of tapered hole+through hole structure, and the hinge itself cannot be fixed with screws. If the products are fixed on the products that cannot be fixed with screws, please tighten and fix them with nuts matching the screws.
- Question: What is the maximum load capacity of these hinges?
-
Answer:
These butterfly flat hinges are designed for high-load applications. The actual load capacity is influenced by:
•Hinge dimensions (larger hinges provide greater load distribution).
•Mounting surface rigidity (stainless steel and zinc cast alloy reinforced structures optimize load transfer).
•Fastener strength (high-tensile bolts minimize shear and tensile stress failures).
- Question: Are stainless steel heavy-load hinges rust-proof?
- Answer: Yes, stainless steel (SUS304, SUS316) hinges provide excellent corrosion resistance, making them ideal for outdoor. However, regular maintenance is recommended for prolonged durability in harsh conditions.
- Question: How do pin diameters affect the strength of heavy-load hinges?
-
Answer:
The pin diameter directly influences the hinge’s load-bearing capacity and durability:
•Larger pin diameters distribute weight more effectively and reduce stress concentration.
•Hardened steel or stainless-steel pins provide increased resistance to wear and bending.
•Precision-machined pins ensure a smooth, low-friction pivot, improving hinge lifespan.
- Question: How to select the right hinge size for any application?
-
Answer:
Consider the following factors:
•Load weight: Heavier loads require thicker hinge plates and larger pin diameters.
•Door/Pivoting Component Size: Wider or taller structures require multiple hinges for even weight distribution.
- Question: How to prevent wear and tear on heavy-load hinges?
-
Answer:
•Lubrication to reduce friction and wear
•Cleaning/removing any dirt or dust around the hinge
•Inspecting the screws of the hinge to ensure they are not loose.
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