If the door lock is made of zinc alloy, it tends to have poor hardness and rust resistance. Even with thick plating, it can easily fade, turn black, or blister over time. However, one advantage of zinc alloy is that it's ideal for creating complex shapes, especially through pressure casting. Many locks with intricate designs on the market are likely made from this material, so it’s important for consumers to be cautious and check quality carefully.
Steel, on the other hand, offers high strength and low cost. However, it is prone to rust and is typically used as internal structural components in locks rather than for external decorative parts. Its durability makes it suitable for functional areas but not for visible surfaces where aesthetics matter.
Aluminum or aluminum alloys are lightweight and easy to shape, making them a popular choice for certain applications. However, standard aluminum alloys (excluding those used in aerospace) tend to be softer and less strong compared to other materials. They’re often used when weight reduction is a priority, even though they may not offer the same level of durability.
Copper is one of the most commonly used materials for locks due to its excellent mechanical properties, corrosion resistance, and ease of processing. It also has an attractive natural color. Copper-forged handles and similar components are known for their smooth surface, high density, and absence of air pockets or sand holes. This makes them both durable and resistant to rust. Additionally, copper can be treated with various finishes like gold plating, giving it a luxurious and elegant appearance that enhances the overall look of a home.
When it comes to long-term durability, stainless steel is considered the best option, especially for surface materials. It is highly resistant to corrosion, maintains its shine, and retains its color over time. There are different types of stainless steel, such as ferritic and austenitic. Ferritic stainless steel is magnetic and, while generally referred to as "stainless," can still corrode if exposed to harsh environments. The most reliable and high-quality type is 304 stainless steel, which provides superior performance and longevity.
About high speed Door Accessories:
1.Driving system: High Speed Door Servo System motor and control, motor SNMA / SEJ +reducer+flang+encoder+control box
2.Other accessories: Middle aluminium bar, bottom aluminium bar, aluminium vertical track, stainless steel vertical track, brushes,round nylon strip, PVC roll, rolling steel tube complete, drum be;;s for rolling tube, side end covers, stainless steel cover, steel tubes, air bag sensor system, safety light beam, Microwave sensor 24 Gigahertz,PVC welding machine, smoke and fire sensors, PVC transparent window, magnetic loop, photocell, remote control, manual push button, sound warning alarm Led lamp traffic light
For some main accessories, here is detain introduction:
1).24G radar sensor:
Brand: Hofic
Technology: Microwave processor
Maintain time: 0.5s
Protection: IP54
Transmitting frequency: 24.125GHz
Maximum installation height: <5meter
Transmitting power density: <5mw/cm2
Power consumption: <1W(VA)
Installation angle: 0-90°(lengthways) -30-30°(crosswise)
Supply voltage: AC&DC 12V-30V
2).Photocell:
Approval CE & ISO9001
Power supply AC/DC 12-30V
Static current 25A
Action current 40mA
Mounting distance Max 10m
NO or NC contact Done by NO./NC. contact selection
Working environment temperature -42℃ to +45℃
Working environment humidity 10 to 90%RH
Appearance dimensions( controller) 123*50*32mm(L*W*H)
Appearance dimensions(Magic eye head) 19*13mm(L*D)
3). Remote control
Operating Voltage: AC220V/50HZ+-20%
Transmit power:≤100mW;Super regenerative module, strong anti-interference
Operating temperature:-30℃-+70℃
Working frequency: 433MHZ;transmitter 1527, millions of encoding chip
Accept sensitivity:≤110dB
Manipulation method: electric remote control
Configure the quantity: Wireless number; factory configuration transmitter two. Can be equipped with PT2272 digital decoder chip
Configure the function: Up, down, stop, anti-lock full-featured reproduction
4). Magnetic loop
Voltage: 12V AC/DC +-10% 24V 115V AC+-10% 230V
Power: <2VA
Continued electrical output: 7A / 250V AC
Frequency range: 20 to 200K Hz
Response time: infinity (factory setting) or adjust maintain time
Sensitivity: 0.01% to 0.1% divided into 3 levels
Protection level: IP30
Electromagnetic compatibility (EMC) Complies with EM50081-1 and EN50082-2
Detection loop inductance: the limit of 40uH to 100uH ideal value 80uH to 300uH
Operating temperature: -25 ℃ to 70 ℃
Storage temperature: -40 ℃ to 85 ℃
Relative humidity: <90% non-condensing
Temperature compensation: automatic compensation up to 50 ℃ / h
Connection type: 11 pin DIN rail socket
Dimensions: 41 * 78 * 85 mm (width * height * length)
Weight: 250 grams
5). manual push button
This exit switch button is made of ABS and has built-in indicator light make it looks more elegant and fashionbale. It can be widely used in public entrance gates, public door, home, office, hotel, etc.
Door Exit Button Push To Exit Switch Door Opener For Access Control Security
Main Feature
Fashionable appearance
Made of ABS Plastic
Easy to install and operate
Used for access control
Specification
Mechanical Life: 500,000 test
Material: Plastic
6). Limit switch encoder
Voltage: DC5V-24V
Output voltage: high voltage≥85%Vcc, low voltage≤0.5V
Maximum mechanical speed:6000rpm
Anti-vibration: 50m/s,10-200HZ,XYZeach way 2 times.
Current consumption:≤30mA
Response frequency: 0-100KHZ
Protection: waterproof,oil proof,dust prevention, IP54
The output code system: binary code
Operating life: MTBF≥30000(+25℃,2000rpm)
Rotational inertia:4.0x10-8kgm²
Maximum load:radial direction20N
Axial direction:10N
Weight: about 0.4kg
,Electronic High Speed Door Accessories
Shenzhen Hongfa Automatic Door Co., Ltd. , https://www.hongfadoor.com