Scissor Trailer Jacks
Advantages: Lightweight and portable structure; compact when stowed; low cost; all-steel construction resists rust; easy to operate (even beginners can manage lifting using a ratchet wrench).
Disadvantages:Lifting requires relatively more physical effort; generally lower load capacity (mostly suitable for light trailers under 3 tons); average stability on uneven ground.
Hydraulic Trailer Jacks
Advantages:Uses hydraulic principles for low-effort operation; fast lifting speed; wide base offers strong stability; some models support heavy loads of 5–12 tons, making them suitable for pickup trucks and heavy-duty trailers.
Disadvantages: Bulky size makes them inconvenient to carry in the vehicle; risk of hydraulic fluid leakage over time; lifting efficiency can drop in low temperatures due to reduced fluid flow.
Screw Trailer Jacks
Advantages: Features mechanical self-locking for high safety and reliability; simple maintenance with low failure rates; can maintain the lifted position indefinitely without sinking; ideal for long-term parking and leveling of trailers.
Disadvantages: High mechanical transmission loss results in lower overall efficiency; slow lowering speed; high-tonnage models are heavy, making them difficult for a single person to move.
