MH Electric Hoist Gantry Crane

Dongqi MH type rail mounted single girder electric hoist gantry crane is applied outside warehouse or railway sideways to do common lifting and unloading works. This kind of gantry crane is composed of bridge, support legs, crane travelling organ, trolley, electric equipment and electric hoist.

Single girder electric hoist gantry crane can be divided into box type and truss type.

Box type single girder gantry crane is usually equipped with standard CD,MD type electric hoist as the lifting mechanism, and the electric hoist traversing along the lower flange of the I- steel of the main girder, which is made of high quality steel plates, such as, C-steel and I-steel.

Truss type single girder gantry crane are different from the box type crane . The truss single girder gantry is made of steel bars, and the latter is made of steel plates. The truss gantry crane have many good advantages, much lighter than that of the box type gantry crane and it has high wind resistance.

Technical data of Electric Hoist Gantry Crane:

Technical Parameter
Capacity	t	3	5	10	16	20
Lifting height	m	6~18	6~12	6~12	6~12	6~12
Lifting speed	m/min	8 8/0.8	8 8/0.8	7 7/0.7	3.5 3.5/0.35	3.5 3.5/0.35
Trolley speed	m/min	20	20	20	20	20
Crane speed	m/min	20	20	20	20	20
Work duty		A3-A4	A3-A4	A3-A4	A3-A4	A3-A4
Track type		P24 P38	P24 P38	P38 P43	P38 P43	P38 P43

Single Girder Electric Hoist Gantry Crane Design:

• Motors: The motors are used specially crane duty suitable for frequent starting, reversing & braking in accordance with China National Standards. Motors are totally enclosed in dust proof construction, cage motors with integrated safety brakes, protection for hoisting.
• Brakes: Dual-disc brakes with features like automatic braking on power failure (FAIL SAFE).
• 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.
• 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.
• Other Features: Wireless Radio Remote control, Flameproof. Cabin Operated.

 Safety Devices of Electric Hoist Gantry Crane:

• Emergency switch can stop all movement when any dangerous happened.
• Smooth starting and stopping,Overload protection.
• Convenient maintenance, Electricity saving.
• Protective earthing. Main lifting motor with thermal protection.
• Sub-assemblies characteristic are tested before assemly.
• All cranes must be preassmebled and tested before leaving factory and offer the certification of test.

MH Electric Hoist Gantry Crane Application:

Single girder gantry crane/single beam gantry crane with electric hoist is used in factory, shipyard, bridge and road construction,etc to do common lifting and unloading works.

Dongqi can offer different capacity, different types of hoist cranes for your choice according to your different use. Get hoist gantry crane, email us now issing@cranedq.com.