
Crane Q2 and Q4 are not interchangeable. Below is an introduction to the relevant content about crane torque wrenches: Torque Wrench: A torque wrench, also known as a torque-adjustable wrench, is a type of wrench. According to the power source, it can be divided into electric torque wrenches, pneumatic torque wrenches, hydraulic torque wrenches, and manual torque wrenches. Manual torque wrenches can be further categorized into preset, fixed-value, dial, digital display, slip, bend, and kilogram wrenches. Specific Torque Value: When the tightness of screws and bolts is crucial, using a torque wrench allows the operator to apply a specific torque value.

As someone who frequently works with engineering vehicles, I believe the interchangeability of components between crane models Q2 and Q4 depends on their specific designs. Generally, different crane models are optimized for varying load capacities and dimensions during manufacturing. The Q2 might be a light-duty model (e.g., with a maximum lifting capacity of 10 tons), suitable for small-scale projects, while the Q4 leans towards heavy-duty (e.g., over 20 tons). Components like hydraulic pumps, booms, or control valves are often incompatible. Forcibly swapping parts could significantly increase the risk of malfunctions or even safety incidents. I recommend first consulting the manufacturer's manual or a professional technician, and opting for genuine OEM parts for guaranteed safety and reliability—this helps avoid unnecessary repair costs. Having handled similar cases myself, I've found that attempts at interchangeability might offer short-term savings but often lead to major headaches. Sticking with original parts is the best way to extend equipment lifespan.

I've driven small trucks equipped with cranes for several years, and found that Q2 and Q4 components are generally not interchangeable. The Q2 is designed compactly for easy mobility, while the Q4 has a robust structure suited for heavy-duty work. In daily use, if you try swapping key parts like hooks or hydraulic hoses, you'll often find they don't fit or reduce work efficiency. In severe cases, it may even damage the crane's core components. Based on practical experience, always choose the correct parts when purchasing—don't just go for cheaper options. Otherwise, you'll face frequent repairs and waste both time and money. Safety first is the golden rule—don't risk trying universal operations. It's better to save yourself the hassle and effort.

From a technical perspective, the Q2 and Q4 cranes have non-interchangeable components due to significant design differences. The Q2 features a lightweight structure with hydraulic systems and circuits adapted for lower loads, while the Q4 is equipped with more robust components and higher pressure resistance. Their tolerance parameters also differ, making parts like boom bearings, motors, or fasteners incompatible. These cranes were designed for specific applications—mixing parts disrupts balance and increases failure rates. For daily maintenance, always refer to the manual for compatible parts.


