5 Ton Lifting Equipment Crane Electric Hoist with FEM European

DONGTAI DT wire rope electric hoist create the greatest value for the users with its excellent durability, high quality and cost-effective. DTS is for double girder overhead travelling and gantry cranes.

DTS wire rope hoist designed and manufactured according to FEM European standard and DIN German standard, which is a new energy saving and environment friendly product. The hoist adopts modular C-design, has compact structure, low headroom, stable lifting operation, accurate positioning. The maximum hoisting load is 20 tons.

Features and Benefits

Quality. Efficiency. Durability. Cost-effective.

Different industries require specific hoisting solutions. DONGTAI wire rope electric hoist is the ideal hoisting product for your applications up to 80 tons. The hoist ranging from the basic configuration to equipment of high-tech advanced characteristics. All key mechanical components are designed, manufactured, assembled and tested in the Dongtai and subsidiary factory by very experienced crane specialists, ensuring the highest quality and durability of the hoist.

• modular C-design, has compact structure, low headroom, stable lifting operation, accurate positioning
• Safe working load capacities up to 80 tons
• Standard hoisting and cross travelling duty is M5.
• Standard dual hoisting speeds, variable frequency drive(VFD) for cross travelling.
• Control method by wire pendant connection or radio remote control.
• One-stage or two-stage hoisting and travelling limit switch elements.
• Overload Limiter equipped to avoid overload and ensure safety.
• Standard protection class IP55, insulation class F.

DONGTAI DT hoist benefits at a glance.

Modular C-design is optimised for crane applications with compact overall dimensions and reduced approach dimensions, which brings optimal use of space and reduce plant construction cost.

High operating safety and reliability by smart control system with Inverter The inverter makes the lifting and travelling speed faster and more accurate under high load conditions, which greatly improves the working efficiency. The mechanical load is associated with many components, making start and stop smoother and completely immune to overload. In addition, energy consumption is lower due to optimal power.

Super quality three in one gearmotors, high strength steel wire ropes, Welding reel drums, inverters and durable electrical and mechanical components ensuring the long life cycle of the hoist and reduce the maintenance cost.

Hoist Components

Hoisting Motor

1.  3 in 1 double-winding squirrel-cage pole-changing dual speed hoisting motor with stable and reliable operation, and free of maintenance.

2.  60% ED power continuity.

3.  Motor IP55 protection class and F insulation class.

4.  Thermal resistor or thermal switch is embedded to prevent motor overheating.

Trolley Motor

1.  3 in 1 variable speed inverter controlled motor with stable and reliable operation and low noise.

2.  40% ED power continuity.

3.  Aluminum alloy shell with light weight and easy to dissipate.

4.  Compact brake, self lubrication, free of maintenance.

Brake

The hoisting motor equips double-disc electromagnetic brake. Brake integration locates at the end of motor. The brake will automatically close if the motor powers off in order to 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 the 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 life cycle.

In conclusion, the brake is with technical features and benefits of fast movement and high reliability, maintenance free and self-regulated, dustproof and long service cycle.

Reel

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

Steel Rope

Imported high strength steel wire rope with tensile strength of 2160kN/mm², steel wire surface galvanized to prevents rust, with good safety performance and long service life.

Rope Guide

Standard rope guide is made and processed by engineering plastics with strong abrasion resistance and good self-lubricating performance, which greatly reduces the wear of steel ropes as main force safety components and then enhances safety of hoisting mechanism. Meanwhile, based on specific working condition, the heavy grade rope guide made of ductile iron is also available.

Electric Control Cabinet and Electric Protection

Electric Control Cabinet surface is dealt with through antisepsis plastic spraying, reasonable layout and easy maintenance, with IP55 protection class. Working environment temperature shall be lower than 45℃ and the humidity shall be less than 90%. The main power supply is 380V(+/-10%) to 450V(+/-10%), 3 phase, 50Hz(+/-5%) or 60Hz(+/-5%). All wires have color, number or wire size marks and wiring reasonable for easy identification. The fixed cable is arranged at groove has protective galvanized steel pipe. The plug used standard code in order to avoid incorrect connection. All connection adopts overloaded air plugs and sockets, which can be solid connected and have easy installation and assembly.

Electric protection equipments including main hoisting limit switch, trolley travelling two step limit switch, emergency disconnect switch, protection for short circuit, pressure lass, zero position, over current and over speed. Which sufficiently ensures the safety.

Variable Frequency Drive(VFD) Unit

Variable Frequency Drive(VFD) design is best suite for varied travel speed and the highest positioning accuracy working conditions required, such as high precision machining and assembly workshops and handling the precious dangerous products.

Core technical characteristics.

1.  Smooth start and stop brings minimum impact and lower wear of brake, gears etc. Which will extend the system life cycle and reduce maintenance cost.

2.  Variable controlled speed reduce load swing.

3.  Slow speed for full load ensure safety while fast speed for light load improve efficiency.

4.  Energy saving.

5.  Low noise.

Overload Protection

DTS rope hoist equips electronic overload limiter (with safety monitor) to ensure the total lifting weight will not exceed the rated lifting load of the bridge, which will increase the safety of crane systems. The overload protector device will automatically cut off lifting loop if the pulling force o steel rope is more than 105% of the rated.

Pre-sales consulting and techncial solutions confirmation.

1. Confirming the industry and working environment of the hoist.

2. Confirm the working duty of the hoist. Generally are ISO M4, M5 M6;  FEM 1Am, 2M, 3M.

3. Knowing the maximum working load, and the hoisting height required.

4. If working as crane hoisting and trolley travelling system, need to fit crane well.