What are the national standard requirements for outrigger pads of truck cranes?
3 Answers
Truck crane outrigger pads are required to prevent damage to road surfaces or roofs and ensure stability without tipping over. Typically based on experience, mechanical calculations are necessary for critical situations. Standard outrigger pads should be used for truck cranes, with hardwood blocks (preferably railroad ties) serving as the pad material. Here is additional information: 1. Specifications: 25T pad dimensions: 800mm×150mm×220mm, 2 pieces; 50T pad dimensions: 1200mm×150mm×220mm, 2 pieces; 100T pad dimensions: 1500mm×150mm×220mm, 2 pieces. 2. Precautions: Ensure the ground is level and solid, with pads placed under all outriggers, and the outriggers must be leveled.
National standards have quite specific requirements for automobile jacking blocks. The wood must be high-density hardwood like oak or birch that can withstand vehicle weight, typically tested to 1.5 times load without deformation. Dimensions need standardization to accommodate different vehicle wheelbases and prevent unstable support. The surface requires anti-slip texture that maintains grip even when wet - particularly crucial for rainy operations. Regular inspections for cracks, mold or insect damage are mandatory, with immediate replacement if defects are found. Since lifting operations prioritize safety, these requirements align with GB/T 3811 regulations to prevent accidents. When doing DIY car repairs, I always thoroughly inspect block conditions because even a small crack could cause major trouble.
As a car mechanic, I use jack pads every day. The national standard requires them to be sturdy and durable, with sufficient thickness to steadily support the vehicle without wobbling. The surface must be rough and anti-slip to prevent the car from slipping and causing injuries. Hardwood should be selected, avoiding overly soft wood. Before use, the load-bearing capacity must be tested, and the maximum weight should be clearly marked. They should be stored dry, and replaced if they get damp. I've seen cracked pads at work, and the consequences of a car falling are severe. These standards aren't arbitrary—they ensure operational safety. Don't cut corners by using substandard products, as it endangers both yourself and others.
