The Hydraulic Steel Grab

Ⅰ  How to judge the quality of the hydraulic steel grab by “ask, smell and see”:

1. The weight of the hydraulic steel grab: by the weight of the steel machine to judge whether to cut corners.Although our company can also use high quality steel to achieve light and durable.However, the current national price is not allowed to acquire customers by greatly increasing the production cost.After all, the price is something in the past.At present, we only recognize the current situation of the price, you can only judge whether the equipment is high strength and durable by the weight of the equipment.

2. Outline dimensions of hydraulic steel grab：Through shape dimensions to compare the manufacturers of technical parameters, such as the opening size, height, width, the finished product photos whether proportion coordination, cylinder with balance pressure valve, motor with protection valve block, valve block is a good brand or imported brand, hydraulic parts such as cylinder has protective structure, and so on!

3. Hydraulic line and control system of the hydraulic steel grab:These are customers who can not see or ignore accessories, good hydraulic pipeline iron pipe  pickling phosphating process without rust without impurities, seamless steel pipe material good wall thickness, hose is imported or joint venture brand of four layers of steel pipe, electric control system harness all aviation link waterproof sunscreen, external tensile network structure, optimization of simple without complex control box, solenoid valve with good brand, with fine clearance, reduce card valve and oil leakage phenomenon!

Ⅱ Attention matters for the  steel grab  in operation：

1. After grasping material, especially weight in 1 ton, rotating, must rotate perpendicular to the ground, not tilt rotation, tilt rotating motor and small gear by the effect of radial force, it is easy to break the motor output shaft, the motor internal back pressure oil leakage, rotating small gear teeth, once rotating stuck phenomenon to stop check, if it is only a small gear teeth timely replacement, the cost is low, if savage continue operation, broken teeth iron slag is easy to the big tooth ring bad teeth, at that time it will spend more money, small gear peripheral has butter mouth, to play twice the butter lubrication, improve durability and wear resistance one day!

2. if the disc is not synchronized to make the immediately stop, then check whether the cylinder leakage, if there is no oil leakage,to  check whether the core on the cylinder middle welding block fracture damage, the valve core can press down and  then bounce up, if broken ,please make a replacement, if the core is not damaged, please adjust the core (balance valve), valve core can produce the hydraulic oil flow control to synchronization!

3. Please focus on activity key axis to be excessive wear or not, especially the cylinder at both ends , if the gap is too large, it is easy to break, and the driver after the line of sight problem is difficult to detect, once broken without timely replacement and continue to work, it is easy to lead to do action structure extrusion deformation (caused by different heart external force)

4. If there is no certain action during the operation, or though you operated an action obviously but the rotation and tension action appear at the same time, it should stop immediately to check whether the double solenoid valve core is stuck phenomenon, once happens, the oil road will appear no oil or oil string phenomenon! Valve core  is generally caused by hydraulic oil impurities or hair, specific how to repair can contact the manufacturer for consultation.