7.50V-20 rim for Industrial rim swamp excavator FOREMOST

The operating conditions of Foremost swamp excavators place extremely high demands on their wheel rims. These rims are not traditional tire rims, but rather key components of the track undercarriage, designed to withstand the extremely complex and harsh swamp environment.

The swamp excavator's operating environment is filled with mud, water, plant debris, and sand, requiring the wheel rims to possess the following special properties:

1. Extremely strong sealing:

Sand and moisture from the swamp can intrude into the bearings and seals within the wheel rim, causing increased wear and lubrication failure. The wheel rims must feature a double or multiple conical oil seal design to prevent internal lubrication oil leakage while also preventing external mud and water intrusion. The seal material and design must be extremely durable to resist corrosion and wear.

2. Excellent corrosion resistance:

Prolonged immersion in water and mud, especially seawater or wetlands containing chemicals, can accelerate corrosion of the wheel rim's metal components. The wheel rims must be made of high-quality alloy steel and undergo a special surface treatment or coating to enhance rust and corrosion resistance. 3. High Strength and Wear Resistance:
Soft ground provides insufficient support, resulting in uneven force distribution during movement and operation of the track undercarriage, forcing the wheel rims to withstand significant impact and torque. Furthermore, mud and sand on the track acts as an abrasive, accelerating wear on the wheel rim surface. Therefore, the wheel rims must be made of high-strength steel that has been induction hardened or heat-treated to ensure a hard and wear-resistant surface, while also possessing internal toughness to resist cracking.
4. Optimized Profile Design:
Mud and debris can easily become lodged between the wheel rim and the track, causing additional resistance and even damaging components. The wheel rim profile must be optimized to effectively drain mud and debris during operation, reducing binding and excessive wear. Additionally, some designs utilize double-sided flanges to better guide the track and prevent derailment on soft ground.
5. Low Friction and Excellent Heat Dissipation:
Continuous heavy loads and high-load operation can cause heat to build up inside the wheel rim bearings. Poor heat dissipation can affect lubricant performance and accelerate component aging. The wheel rim bearings must feature a low-friction design and maintain good lubrication to prevent failure due to overheating during extended operation.

In summary, the operating conditions of the Foremost swamp excavator require its wheel rims to be not only as durable and robust as standard excavator components, but also to possess excellent sealing and corrosion resistance to withstand the unique wetland and muddy environment. These specialized properties are crucial to ensuring stable and reliable operation of the equipment under these extreme conditions.