2. Product Features
1. Fast and convenient, efficient and time-saving
The unique one-button or rotary lock structure is easy to operate. Connection and disassembly can be completed within 3-5 seconds. Compared with traditional bolt connections, the assembly efficiency is increased by more than 80%, significantly reducing the equipment maintenance and commissioning time.
2. High load-bearing capacity and strong stability
The high-quality materials such as 42CrMo alloy steel and 304/316L stainless steel are used. After quenching and tempering, the tensile strength reaches more than 1200MPa. It can withstand 5 tons of axial tension and lateral pressure. It can still be firmly connected under vibration and impact conditions and is not easy to loosen.
3. Safe and reliable, multiple protections
Equipped with anti-misoperation safety device and visual locking mark to avoid accidental loosening; the surface is galvanized, chrome-plated or Dacromet-treated, with excellent anti-rust and anti-corrosion performance, and can adapt to harsh environments such as humidity, acid and alkali, with a service life of up to 8-10 years.
4. High adaptability, flexible and diverse

Provide a variety of specifications and models to adapt to different sizes of pipes, plates and shaft parts; support customized design, and can adjust the lock shape, connection method and load parameters according to needs. Some common specifications are as follows:

model	Material	Maximum load (kN)	Applicable pipe diameter (mm)	How to operate
KL - 10	42CrMo	50	10 - 30	Rotary type
KL - 25	316L Stainless steel	120	25 - 50	Press type
KL - 50	alloy steel	200	50 - 80	Plug type

III. Product Details
1. Material Type
Alloy Steel: 42CrMo, 35CrMo and other high-strength alloy steels are selected. After heat treatment, the comprehensive mechanical properties are excellent and suitable for heavy machinery and equipment, engineering machinery and other high-load scenarios.
Stainless Steel: 304 stainless steel is suitable for general industrial environments, with high cost performance and corrosion resistance; 316L stainless steel adds molybdenum elements, which has strong resistance to strong corrosive media such as seawater, acid and alkali, and is often used in special fields such as marine engineering and food processing.
2. Structural Design
Lock Structure: Covers rotary, press-on, plug-in and other types. The rotary type is fastened by thread and slot; the press-on type is quickly locked by spring and buckle elastic connection; the plug-in type relies on pins and sleeves to complete the connection, all of which are mechanically optimized to ensure convenient operation and firm connection.
Auxiliary Device: Built-in anti-loosening components such as anti-loosening washers and safety pins, and some models are equipped with torque limiters to prevent overload; visual locking marks (such as color changes, raised marks) are convenient for quick confirmation of the connection status.
3. Manufacturing process
Using advanced processes such as CNC machining centers and precision casting, the accuracy of key dimensions is controlled within ±0.02mm, and the surface roughness is Ra≤0.8μm. Strictly test the matching accuracy of the lock and the connector to ensure tight connection and reduce vibration wear.
4. Quality inspection
 Mechanical performance test: Use tension and pressure testing machines to simulate actual working conditions to verify the product's load-bearing capacity and fatigue life.
 Environmental adaptability test: Conduct salt spray test (corrosion resistance ≥72 hours), high and low temperature test (-40℃ - 120℃), and wet heat test to ensure stable performance in extreme environments.
 Appearance and size inspection: Use three-coordinate measuring instrument and optical detector for full-size inspection to ensure that the appearance is flawless and the size meets the standard.