AIR HOIST

  • TCR Series
  • TCS Series
  • TMH Series
  • TNC Series

Feature of TOKU Air Hoist

  • WIDE PRODUCT RANGE
    Various lifting capacities ranging from 140 kg through 30 tons.
  • SAFE DESIGN & HIGH DURABILITY
    Conforming to major industrial standard in the world including ATEX certification based on more than 80 years manufacturing experience.
  • ▸ High quality vane motor
  • ▸ Planetary gear with long life grease
  • ▸ Overload protection
  • ▸ High strength cast steel housing for durability
  • ▸ Failsafe automatic disc brake
  • ▸ Emergency stop
  • ▸ Mechanical end stop system
  • ▸ Choice of cord or pendant control
  • ▸ Various speed control
  • ▸ Safe from hazard of electric explosion

Applications in various industries

  • Shipyard
  • Offshore oil industry
  • Assembly line
  • Foundry
  • High speed production industry
  • Mechanical engineering
  • Power plant and refinery
  • Construction and Mining
  • Chemical industry
  • Food industry

TOKU Air Hoist Series

TCS Series

Extra High Speed
Air Hoist

  • Capacity: 250kg-1ton
  • Ideal for high production cycle operation
  • Enables precise speed control

TCR-250

250kg capacity
Compact Air Hoist

  • Capacity: 250kg
  • Compact & Lightweight
  • Enables precise speed control

TCR Series

All Rounder
Air Hoist

  • Capacity: 500kg - 2ton
  • Built-in load limiter
  • Enables precise speed control

TMH Series

NEW Multi Utility
Air Hoist

  • Capacity: 3ton - 30ton
  • Fastest speed in each class
  • Enables precise speed control

TNC Series

Large Capacity
Air Hoist

  • Capacity: 10ton
  • Built-in load limiter
  • Enables precise speed control

Air Manipulator

Flexible
Material Handling

  • Capacity: 140 - 250kg
  • Enables one handed operation
  • Enables precise speed control

About Air Hoist

Air hoist is the kind of material handling equipment and used to lifting or lowering the load material generally using chain or wire rope with a lifting hook on its end.

The power source is the compressed air supplied from air compressor, which is the reason why it is called as "air hoist".

Air hoist is sometimes called as "pneumatic hoist", "air chain hoist" or "air chain block" in some regions.

Since the mechanical structure of pneumatic equipment is simpler compared with electric powered hoist, and then generally the air hoist is considered as more powerful and durable hoist.

So air hoist is more likely to be used under harsh environment or at heavy duty work site to avoid the accident and mechanical trouble such as explosion caused by spark, leakage etc, and overheating caused by continuous duty, etc.

Maintenance & Inspection for Air Hoist

Inspect the air hoist regularly

To operate the hoist safely, it is necessary to obey the crane safety regulations and perform daily inspections, monthly inspections and annual inspections.
If the hoist is not inspected on regular basis this may lead to damage to the hoist and result in personal injury.

Daily Inspection

  1. Inspection of the air pressure and oil
  2. Confirm the hoist is operating at 0.6MPa (6kg/cm2) air pressure. Also make sure the line oiler is operating correctly. If oil lacks to the motor, this will lead to early wear of the motor parts.

  3. Inspect the hook and hook claw;
  4. If the hook is unable to rotate the chain may become twisted and the load may rotate leading to danger. Also make sure the safety hook is working correctly or it will be very dangerous.

  5. Is the chain lubricated
  6. The chain may wear prematurely if it is not lubricated properly.

  7. Does the hoist operate smoothly without abnormal sounds?
  8. Stop the hoist if you hear any abnormal sounds coming when the hoist is operating.

Monthly Inspection

  1. Inspection of the chain (For damage and elongation)
  2. Inspect the chain according to the maintenance manual. If the chain is out of tolerance, stop operation and replace the chain. This may lead to breakage and is dangerous.

  3. Check if the brake is operating correctly
  4. Check the operation of the brake. If the load slips contact your dealer or distribution for repair. It is dangerous to continue the use of the hoist in these conditions.

  5. Inspection of the hook
  6. Inspect the hook for damage, deformation, non-rotation and also conform the safety claw operates properly. Concerning the shape of the hook, review the maintenance chart for dimensions (L) and (H). If these areas exceed the recommended amount, it is dangerous to use. Replace with a new one.

  7. Inspect for loose bolts and nuts
  8. It is dangerous to use the hoist with loose bolts or nuts. And this may cause damage to the other areas of the hoist.

  9. Inspect the lifting limiter
  10. Check to make sure the lifting limiter is functioning and stops correctly. Check this function with no load.

Annual Inspection (without disassemble)

The annual inspection should be performed once a year by the manufacturer or at authorized service location. As for the servicing, it should be performed once a year, every 500,000 cycles of operation, or 400 hours of actual operating time of the air hoist, whichever comes first. But please note, depending on the environment where the hoist is being used, it may be necessary to inspect the hoist as needed.

ATEX Certification

ATEX Directive

ATEX is the abbreviation of the French words "ATmospheres EXplosibles" which is the name commonly given to the two European Directives used for controlling explosive atmospheres.
The Aim of the directive 94/9/EC is to allow free trade of ATEX equipment within the EU, and some other parts of the World who have also adopted the ATEX directive.

TOKU Spark Resistant Air Hoist

Explosive atmospheres can be caused by flammable gases, mists or vapor, or by combustible dust. If there is enough of a substance mixed with air then all it needs is a source of ignition to cause an explosion.
Preventing release of dangerous substances and controlling potential sources of ignition are two widely used ways of reducing risk.

Explosion Atmospheres

Gases are divided into two groups:

GroupⅠ: For mines susceptible to Methane

GroupⅡ: For gases in locations other than mines, which are divided into three sub groups:

  • ⅡA: For atmospheres containing propane or gases of an equivalent hazard
  • ⅡB: For atmospheres containing ethylene or gases of an equivalent hazard
  • ⅡC: For atmospheres containing hydrogen or gases of an equivalent hazard

* Equipment for Group Ⅱ used in an explosive area is also classified by the gas group.

Explosion zone classification

Category (formerly known as risk zone) Description
1G ZONE 0
(Gas/vapor)
An area in which an explosive mixture is
continuously present or present for long
periods.
2G ZONE 1
(Gas/vapor)
An area in which an explosive mixture is likely to occur in normal operation.
3G ZONE 2
(Gas/vapor)
An area in which an explosive mixture is not likely to occur in normal operation and if it occurs it will exist only for a short time.
1D ZONE 20
(Dust)
An area in which an explosive mixture is continuously present or present for long periods.
2D ZONE 21
(Dust)
An area in which an explosive mixture is likely to occur in normal operation.
3D ZONE 22
(Dust)
An area in which an explosive mixture is not likely to occur in normal operation and if it occurs it will exist only for a short time.

ATEX Marking

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