22 TON LIFTING CAPACITY: This heavy-duty air truck jack can lift up to 44,000 lbs., making it ideal for trucks, buses, and other large vehicles in garages, repair shops, and for DIY use HYDRAULIC LIFT RANGE: Adjustable hydraulic lift range of 9" to 18" ensures flexibility for a variety of automotive repair tasks, from tire changes to brake maintenance HEAVY-DUTY STEEL CONSTRUCTION: Built with durable steel for long-lasting use, this jack provides strength and stability during heavy lifting operations in both professional and home environments LOAD-LIMITING AND BYPASS VALVES: Equipped with safety features like load-limiting and bypass valves to prevent overloading and ensure reliable operation for both commercial and personal vehicle maintenance PNEUMATIC AIR OPERATION: Powered by compressed air, this jack is efficient and easy to operate, making it perfect for lifting vehicles with minimal effort