YZ Model Casting Overhead Crane Double Girder
Brief Description:

YZ Double Girder Casting Bridge Crane is consisting of the beams, lifting and cross travelling mechanism, long travelling mechanism, cabin, and electrical control system. The trolley can move horizontally on the rail fitted on beams. The beams are welded by the machine hands, which make the structure more reasonable and reliable. Overhead beams can be four when lifting weight is over 125t. Main hook is used for handling casting ladle, and aux. hook is used for cooperating with the main hook to complete the pouring out steel water, slag or other instrumental work.

YZ Double Girder Casting Bridge Crane with hook is mainly used for lifting the metal iron or steel in the foundry workshop. The working class of the complete machine is A7-A8, and thermal-protective coating is added at the bottom of the main girder. The lifting weight is from 75t-320t. The crane are equipped with gantry hook, The gantry hook is make from high quality low-alloy structural steel plate stacked-type splicing and use rivets fastening, very safety and reliable for using.

Main Features:

1. Reasonable structure,strong bearing capacity
2. Low noise, soft starting and stopping
3. Safe and reliable operation
4. The power of crane is three-phase AC; rated frequency is 50HZ, rated voltage is 380V.
5. The temperature of working environment is -10~+60 centigrade.
6. The relative humidity is no more than 50% when the temperature is +40 centigrade.
7. If the requirements are more than the above mentioned , we could special design for you.
8. Safety devices: Weight overload protection device; Top quality long time bearing polyurethane materials buffer; Lifting limit switch and traveling limit switch; Emergency stop system; Zero voltage protection; Phases protection device.
9.Customized: design and manufacture according to your request.
10. Package: By national station exporting standard plywood box, wooden pallet or in 20ft & 40ft container. Or as your demands.

Design and construction rules:
All the standards which is required for the crane is the Chinese standard.each Crane pass through CE;GOST;SGS Proved.

Motors:

The motors are used specially crane duty suitable for frequent starting , reversing & braking in accordance with ISO 9001:2000 ISO 14001:2004.Motors are totally enclosed in dust proof construction foot / flange mounted TESC / TEFC , Sq. insulation class F, IP55 protection for hoisting, CT & LT motions.
Brakes:

Always we make 2 brake for each mechanism.That could make the crane more safe.Also the high quality hydralic thrusters is the most important parts to make the brake perfect working!
Gear Box :

The entire gear boxes are made of accurate hob cut helical / spur gears & pinions having hardness 250 to 350 BHN made from carbon alloy steel. All gears & pinions running on antifriction type ball / roller bearings in totally enclosed oil bath giving constant splash lubrication. The helical / Spur gear designed for adequate strength and optimum wear resistance for smooth operation & long life.
Wheels:

The wheels of crane crab ,main beam and end carriage are produced in our special Vacuum casting workshop (No sand inclusion technic) ) which make our wheels more elastic and outer surface hard-wearing and durable.
Electrical Panel :

Modular design, ease to install and maintain, reliable operation, fuse less circuitry, ducted wiring and compact terminals. Motor overload protection to prevent overloading.
Limit Switch:

Safety limit switches for stoppers will be provided to prevent over traveling in all motions.
Painting:

Two coats of primer before assembly & two coats of synthetic enamel after testing.-Color: according to your demand