Crane Geared Motor
Crane Geared Motor with Buffer, is a crane assessory for driving, is made up of Gear box and Motor, which is also called Reduction motor, Motor reducer, Geared reducer, Geared motor worm reducer, Worm gear speed reducer, Bevel gear reducer, Reduction gears, AC geared motor, Buffer motor, End truck geared motor, End carriage geared motor, Electric motor speed reducer, Motor of crane Helical gear reducer, Motor micro gear reducer, Motor worm gear motor reducer, Reducer for crane.
Product Details

Features
● Small Volume with Compact Unitive Whole Part
● High Torque and Output Power Stronger
● Easy Heat Dissipation
● Low noise and vibration, Soft Start and Soft Stop
● High performance and Sensitive Steady
● Close, precise gear ratio
● Drive multiple functionalities within a rugged design

Motor 0.25Kw - 3.75Kw
Material Cast Iron
Usage Power trolley driving
Power Supply 220v-700v, 50/60 Hz, 3 phase, single voltage
H.S. Code 8483409000
Package Plywood case

Crane Geared Motor with Buffer, is a crane assessory for driving, is made up of Gear box and Motor, which is also called Reduction motor, Motor reducer, Geared reducer, Geared motor worm reducer, Worm gear speed reducer, Bevel gear reducer, Reduction gears, AC geared motor, Buffer motor, End truck geared motor, End carriage geared motor, Electric motor speed reducer, Motor of crane Helical gear reducer, Motor micro gear reducer, Motor worm gear motor reducer, Reducer for crane.
It is widly used in end truck, bridge crane, overhead crane and tower crane.

Some explanation for catalogue:
Speed 14.1m/min, means if use this type gear module and teeth in pinion of motor, the end carriage traveling speed will be 14.1m/min.
Rotation speed 133R/MIN, means the output shaft can run 133 circles per minute (revolutions per minute)
The end carriage speed depands on motor, not on wheel.
2 pole motor is unavailable.
Brake coils, For dual voltage, default voltage for brake coil is high voltage. such as reconnectable 230/460V, Default is 460 volt brake coils.
Different type wheel could use same motor, but premises is that wheel module should be same as motor module, then they can match.
There is no relationship between wheel teeth and motor teeth.
Bigger pinions for higher travelling speeds, The end carriage speed will be double as the motor teeth grow double.
Motors could be rotated, left and right are in mirror, packed in one box when delivery.
Speed = π×outlet motor rotation speed×outlet motor teeth/wheel teeth×wheel diameter (ID)

Detailed Description
1. Reduction gear
The gear box is made of cast iron(FC25) with high tension, and manufactured by computer numerical control machinery(CNC LATHE&CNC machining center), which lead it to accurate precision. The gear is made of Ni-Cr-Mo alloy steel (SNCM220&SCM415) with heat treatment of vacuum and carbonnitriding. The shaft is manufactured by alignment and grinding, which make it high accurate. It possesses high abrasion and strike resistance. The safety factor is up to 5 times or more. The service life is long.
2. Buffer
Adopting soft starting and fly wheel buffer to produce high inertia movement. Both starting and braking are stable and smooth, which makes goods not shaking.
3. Motor
With high performance, high torque, motor ensures quick heat dissipation and resistance to high voltage ranks more than 1500v.And it is also provided with other advantages: low current, small size, strong output power, and high operation frequency.
4. Electromagnetic brake
Direct current brake possesses strong braking force. Bolt controls braking force directly, and adopts braking pad with high wear resistance to make it with high safety, long service life, and strong stability.
5. Buffered crane geared motor speed
The output rotational speed marked on the gear motor is a reference value. Rated output speed of the gear motor can be calculated on the basis of the rated input rotational speed of the motor and the gear reducer. The actual output speed is related to the load and power supply source of the motor.
6. Noise level
The noise level of all gear reducer and motor is within the maximum allowable noise ranges as required in the related standards. The gear reducer has a noise level that conforms to VD12159 and the motor to EN60034.
7. Painting
Standard painting is green and safety blue, epoxy paint, which in compliance with the DIN 1843 standard.
8. Corrosion resistant coating
For applications where extreme humidity or chemical corrosion might be present, we will apply special coating to the gear motor surface prior delivery.
9. Thermal overloads could be installed in the motors
It’s optional and not installed in the standard motor. There are two kinds of thermal overloads protection as follows, Both are to control circuit starting and let main circuit break when motor temperature arise to limit, it has protection application.
① built-out, built inside electric control cabinet.
② built-in, built inside motor winding when wind. (normally used)
Motor thermal overloads protection is a temperature controller which use bimetal as temperature sensing element, when electric equipment works normally, bimetal is on free condition, contact point is on close/break condition, when temperature arise to operating temperature, bimetal is heated and produce internal stress and acts quickly, open/close contact point, cut/connect circuit, then it has protection application. When temperature falls to setting temperature, contact point close/break automatically, restore normal work condition.
Caution:
① Adopt contact sensing temperature type installation, in other words, built inside motor winding when wind.
② Plastic cement or metal shell collapse or deformed is prohibited, in order to avoid affect its function.
If motor thermal protection relay is in the motor, power supply will switch off automatically in 105 degree which set in motor.
If not in the motor, motor thermal protection relay will judge temperature by electrical current.
10. Others
Changes Way: Stepless
Efficiency: IE 2
Insulation grade: F
Protection class: IP54
Rotor Structure: Squirre-Cage
Operating Speed: Constant Speed
Hardness: Hardened
11. Label and name on plywood case
Use name Reducer (or geared motor) instead of motor in label, since motor need to be commodity inspected by commodity inspection bureau, but reducer do not need.