... hydraulic cylinder1. Made of top material Hardox and Q345B, it can resist grinding and bending. 2. Strong digging strength.3. Especially ... of channel or one side of limited space .Loading and unloading vessels,trains,cars . Applicable models: CATERPILLAR, KOMATSU, ... etc. PC60, PC100, PC120, PC200, PC300, and PC400 CAT170, CAT110, CAT200, CAT240, CAT320, and CAT330 EX60, EX100, EX200, EX220, EX230, ...