28.00-33/3.5 rim for Construction Equipment rim Wheel loader CAT 988H

The CAT 988H wheel loader uses 28.00-33/3.5 rims. Rim selection and requirements are crucial, as they directly impact the load-bearing capacity, stability, and operational safety of the entire machine.
The CAT 988H is a large wheel loader with an operating weight of approximately 72–75 tons and a bucket capacity of 12–14 m³. The 28.00-33/3.5 rims must withstand the high impact forces of fully loaded loading and transporting ore and gravel. Rims are typically made of high-strength, high-quality steel to ensure resistance to bending and cracking under extreme operating conditions.
The 28-inch width supports large, wide tires, ensuring ample contact patch and enhanced grip. The 33-inch diameter provides high ground clearance for use on uneven surfaces in mines, gravel plants, and other locations. The 3.5-inch flange thickness provides sufficient locking strength to prevent tire derailment or deflation. Rims typically feature a 5-piece, split design for enhanced strength and ease of maintenance. This high-strength, split-piece structure can withstand the impact of heavy shoveling loads, vibration from uneven roads, and the impact of crushed rock in mines and ports.
The rim surface is treated with an anti-corrosion coating or paint to resist corrosion from mud, ore, rain, and chemicals. This extends rim life and reduces maintenance costs.
The Cat 988H's requirements for 28.00-33/3.5 rims can be summarized as follows: 1. High load-bearing capacity to withstand fully loaded large loaders; 2. Tire matching to ensure contact patch and grip; 3. Strong structure, split-piece design, and impact resistance; 4. Sufficient flange thickness to prevent tire unseating; 5. Corrosion resistance and durability to withstand harsh environments such as mines and ports; and 6. Improved safety and operational efficiency.