Analysis of the performance advantages and multi-industry application value of large and small lock shafts for injection molding machines

Product features and advantages:
Precise structure and strong rigidity: large and small lock shafts for injection molding machines are made of high-strength alloy steel materials, and are precisely formed through CNC machining and heat treatment processes (such as tempering and high-frequency quenching), with excellent compression and bending resistance. The rigorous structural design can effectively withstand the impact force generated during the opening and closing of the mold, ensuring that the structure remains stable and not easily deformed under high-frequency clamping operation.
Excellent pressure-bearing performance: As the core load-bearing component of the injection molding machine clamping system, the locking shaft needs to withstand a clamping force of up to tens of tons or even hundreds of tons during injection. This series of locking shafts has excellent axial load-bearing capacity, which can firmly lock the mold under high-pressure injection molding conditions to prevent molding problems such as flash, dislocation, and dimensional deviation caused by mold displacement.
Good wear resistance and long life: The surface adopts high-frequency quenching or nitriding treatment process, with a hardness of HRC55 or above, which effectively improves wear resistance and adapts to high-frequency and high-intensity operating environments. At the same time, anti-corrosion coating is added to delay corrosion caused by water vapor, lubricants, material residues, etc., greatly extending the service life. The maintenance cycle is long and the replacement frequency is low, which can effectively reduce the equipment operation and maintenance costs.
Multiple specifications and strong adaptability: Provide standard and non-standard specifications of various diameters, lengths and installation forms, adapt to various types of domestic and imported injection molding equipment, covering the full range of application requirements from small precision injection molding machines to large industrial heavy-duty equipment. Support customization according to drawings, flexibly match different clamping mechanisms and structural arrangements, and meet the needs of diversified production line upgrades.
Easy installation and convenient maintenance: The locking shaft has a compact structure and reasonable design, which is easy to install and replace quickly without complex debugging. Modular assembly design and standard interface configuration can greatly improve the convenience and stability of the locking shaft in equipment replacement and maintenance, reduce the cost of manual intervention, and help achieve an efficient and stable injection molding production process.

Wide application areas:
Automobile manufacturing industry: In the automotive injection molding process, many parts are large in size and complex in structure, which places extremely high requirements on the rigidity and stability of the clamping system. As the core components of the clamping unit, large and small lock shafts for injection molding machines are often used in the injection molding production of headlight housings, bumpers, instrument panel panels, door trims, seat frames, etc. These parts often use large molds, with long molding cycles and high clamping pressure. The locking shaft must have excellent pressure-bearing and fatigue-resistant properties to ensure that the mold is always firmly closed, thereby ensuring that the product size accuracy and structural strength meet the standards and meet the strict requirements of the OEM for quality consistency and safety performance.
Electronics and home appliance industry: This field is mainly characterized by high-beat, high-capacity, and small-size injection molded parts. Injection molded parts such as mobile phone cases, remote control housings, power plugs, TV frames, switch panels, etc. are typical applications. During the injection molding process, the mold opening and closing frequency is extremely high, and the locking shaft must have excellent wear resistance and precision retention capabilities to avoid mold dislocation and product defects caused by high-frequency wear.
In addition, small injection molding machines have higher requirements for the compactness of the locking shaft structure and installation efficiency, so reliable and highly adaptable locking shafts have become the key guarantee for maintaining stable production.
Medical device and daily chemical industry: In injection molding scenarios with high cleanliness requirements, such as the production of syringes, infusion connectors, disposable medical supplies, cosmetic bottle caps, and toiletries pump heads, the lock shaft needs to provide a precise and stable clamping effect to prevent micron-level mold deviation and ensure product sealing, matching accuracy, and safety of use.
At the same time, the medical industry is highly sensitive to the production environment. The design of the lock shaft usually needs to consider corrosion resistance, rust prevention, and cleaning convenience to adapt to the long-term operation requirements of dust-free and sterile workshops.
Food and packaging industry: This industry uses a large number of high-speed injection molding equipment to produce food-grade containers such as preforms, beverage bottle caps, sealed packaging boxes, and tableware, and has extremely high requirements for injection molding efficiency and mold locking accuracy. In such applications, the lock shaft not only has to withstand the fatigue load caused by frequent clamping actions, but also needs to maintain high stability to prevent problems such as flash and leakage caused by lax clamping, which directly affects the safety of the product and the sealing performance of the packaging. With the support of high-quality lock shafts, the molding stability can be effectively improved and the scrap rate can be reduced.