15 Years FEM Standard Hoists Manufactruer

Introduction

It employs motor of hoisting mechanism and reducer imported from Germany. The integrated and compact design of hoisting motor, reducer, reel and limit switch saves space for the user. Modular design increases the reliability of mechanism meanwhile reduces the time and cost for maintaining.

It has more and faster hoist speed and various pulley ratio which can be selected. The standard traveling mechanism of the trolley is controlled by converter, with speed of 20m/min, which makes a little swing and accurate position if hoisting items while trolley traveling as well as lifts precision and valuable items reliably.

Hoisting mechanism

The design strictly carries out the relevant standards of FEM. With aluminum alloy shell of the reducer; steady running and low noise; Lifetime lubricating (within safety service circle); Double-disk electromagnetic brake.

Reel:

The reel is made of high quality seamless pipes and processed by numeral control machine, after the special finishing, the rope groove on reel works coordinately with rope guide to efficiently prevent rope loose and tangling.
Steel rope:

Employ import steel rope with high strength which has tensile strength of 2160 KN/mm², with good safety performance and long service life.
Rope guider:

Standard rope guider is made and processed by engineering plastics with strong abrasion resistance and good self-lubricating performance, which greatly reduces the wear of the steel rope as main force safety components and then enhances safety of hoisting mechanism. Meanwhile, direct to different use condition, the heavy-grade rope guide made of nodular cast iron is also allowed.
Motor of hoisting mechanism:

The hoisting mechanism employs double-winding squirrel-cage pole-changing motor to achieve speed ratio 1:6. Shell of motor is made of aluminum alloy by extruding, which has good dissipation. The fan is installed to the end of motor in order to enhance cooling effects. Thermal resistor (or the thermal switch) is embedded in to winding group of motor to prevent probable motor overheating.

The motor has F insulation level and protection level IP54.

As to the variable---frequency motor of hoisting mechanism, encoder is allowed to install, which is ordinarily installed to fan shaft end of motor.
Brake:

The motor of hoisting mechanism is provided with double-disc electromagnetic brake. Brake integration locates at the end of motor. The brake will automatically close if the motor powers off in order that avoid load slipping off. The brake clearance does not need to be manually regulated (which can be regulated automatically by brake spring) after being initially set; if the thickness of brake pad is lower than the setting, it will automatic alarm through additional monitor switch in order to remind user to replace it. Double-disc electromagnetic brake is safe and reliable, the brake torque is higher than 1.8 times of rated torque, the number of braking gets to 1,000,000 times and it does not need maintenance in the safety service circle.

Technical features:

Have fast movement and high reliability.

It's maintenance-free and self-regulated.

Employ dustproof design and long service life.
Reducer:

Shell of the reducer uses aluminum alloy material, with weight and corrosion resistance. Semi-grease lubricant in full sealed box gets all gears lubricated fully and should not be changed within the design circle for safety service.

Every gear which gets the process of surface hardening and high-precision grinding ensures stable running of reducer.

Technical features:

It has small size and light weight.

Run smoothly and steadily and have low noise.

Have corrosion resistance and maintenance-free.

Configuration Contrast

		Others
Motor Brand of hoist	Nanjing motor	Nanjing motor
Work Duty Group	M3	M3
Electric Control Panel	Wireless remote control+ pendent line	Pendent line
Packaged	Wooden case	Nude package
price	10% lower than then other factory	Higher price

Contrast


Produce standard	FEM standard	GB standard
Motor brand	ABM	Nanjing motor
Work class	FEM 2M	A3 or M3
Starting of Crane	Very smooth; Low noise;	A little violent;
Space Requirement	Modular design, smaller size;Lower request about workshop space	Bigger size;Higher request about workshop space
Self-Weight	Light weight, available to different steel structure factory	Heavy weight and strictly higher request for steel structure factory
Maintenance	Easy, and the components are available for every country market;	the components for replacement only available in China market;

Advantage

Factory outlet: no traders, only factory and customer.
FEM and GB production standard
Professional engineer and testing department
Sandblasting: Material or finished products
Epoxy zinc rich primer and chlorinated rubber top-coat
Export packaged: wooden box or waterproof cloth

Features

Overload protection limit switch to protect the hoist from overload operation;
Lift height limit switch to protect the hoist from the hook reach the up/down limit;
Power failure protection to protect the hoist from the low voltage and power failure;
Motor's protection grade is IP44 with F for insulation grade based standard;
For ex type condition, the EX grade of the motor and electricity will be EX dII BT4/CT4;
For metallurgical condition, the insulation of the motor will be H grade, and there is high temperature resistance cable and thermal baffle to protect the crane from the heat.
It has low current for start and large torque.
With soft starting and good performance in speed up
Have long service life
The technical parameters comply with standards of FEM and HMI
With high rotational speed and low noise
Compute the rest circle of safety work of hoisting mechanism
Accumulated working time for lifting
Accumulated overload times