TAH-M Twin Hook Air Hoist

Tiger twin hook air hoists were originally designed for mining applications and suitable for both pulling and lifting operations. Now deployed globally in various marine and industrial applications. The hoist uses a balanced motor with our integral load limiter working on both sides. This dual action gives overload protection in both directions for lifting and pulling. They comply with the requirements of SANS 1638, EN14492-2 and ASME B30.16. Our manufacturing facility producing the hoists is ISO9001 certified.

Product no: TAH-M

Main Features

  • TAH21M 2.0t/2.0t configuration
  • TAH33M 3.0t/3.0t and 3.0t/6.0t configurations
  • Two chain falls with hooks for alternate working
  • Various hook options – standard, closed eye, grab and self-locking
  • Integral load limiter
  • Especially suitable for horizontal pulling
  • Reliable, fast, efficient, quiet and lightweight
  • Greater than 5:1 factor of safety
  • Certified for ATEX Category 3 – normal safety

Details

Advantages of Air Hoists

Air-powered hoists are ideal for tasks that require rapid lifting speeds and constant use. These hoists are powered by a compressed air feed, making them a great alternative to electric hoists when there are no power sources available. Another key benefit of air hoists is their 100% duty cycle – significantly higher than most electric hoists. For example, an electric chain hoist that has a 25% duty cycle can be operated continuously for a maximum of 15 minutes in a one-hour period. Hoists that are powered by a compressed air feed do not have this limitation; they can remain in constant use until the job is done.

Load Limiter

Integral differential pressure load limiting valve automatically prevents the operator lifting a load of more than 125% of the working load limit. Load limiter is 100% repeatable at all working pressures and does not wear or generate damaging heat.

Precise Control

Lever control, pilot pendant control and direct pendant control offer variable speed control. Accurate and precise positioning of loads is standard for both toggle and pendant control models. Various lock out options available.

Fail Safe Disc Brake

Non-asbestos self-adjusting disc brake is applied automatically when the air supply to the hoist is shut off. The brake is self-adjusting for the life of the brake and can hold more than 125% of the working load limit.

Integral Silencer

The exhaust air silencer is built into the hoist gearbox housing and limits the noise level to below 83dB(A).

Load Chain

Grade 8 load chain ensures stringent high speed duty cycles can be met. The load chain is in accordance with the requirements of SANS/ISO 3077 and EN818-7 Appendix B.

Vane Motor

Assisted vane lifting ensures maximum starting torque when starting under load.

Sealed Gearbox

The sealed planetary gearbox ensures that the most stringent duty cycles can be met. The gears are heat treated and mounted on high strength, low friction bearings.

Ease of Maintenance

The modular design of the hoist allows easy access to internal components such as the motor, gearbox, brake and load limiter. Common parts are used throughout the range.

ATEX

Manufactured in accordance with ATEX Directive 2014/34/EU and Machinery Directive 2006/42/EC and suitable for ATEX Category 3 – normal safety. Our products are assigned as follows: ATEX marking: : Ex II 3 GD c IIB T4 IIIB T135°C. Suitable for gas and dust hazardous areas: Zone 2 (gas) and Zone 22 (dust). Unlike electrically operated hoists, the air driving pneumatic air hoists doesn’t produce any sparks making them suitable for application in explosion-hazardous areas.

Ex II 3 GD c IIB T4 IIIB T135°C

Hook options

Various hook options – standard, closed eye, grab and self-locking

Standard hook

Closed eye hook

Grab hook

Self locking hook

Pendant control

Our air hoists are supplied with our variable control E/stop pendant and the option of our twist grip E/Stop pendant which gives perfect control in both directions. Toggle control available as an option.

 

Nickel plated SG iron E/stop pendant

Twist grip E/stop pendant

Toggle control

 

Due to our policy of continual product development, dimensions, weights and specifications may change without prior notice. Please check with your Tiger sales team when ordering.

* Weight is for 3m HOL, E/Stop pendant control (2m) J-hooks

# An extra metre of chain will give 1m extra HOL on the 3t side and 0.5m extra HOL on the 6t (2 fall) side

Data Tables

Product Code AHM-021 AHM-030 AHM-063
Lifting Capacity (Tonne) 2.0/2.0 3.0/3.0 3.0/6.0
Falls of Chain 1/1 1/1 1/2#
Chain Size (mm) 10 x 28 13 x 36 13 x 36
Total Weight (kg) 66.0 82.0 102.0
Full Load Lifting Speed (m/min) @ 6 bar 4.7 4.9 4.9/2.4
Full Load Lifting Speed (m/min) @ 4 bar 2.6 3.2 3.2/1.6
No Load Lifting Speed (m/min) @ 6 bar 7.0 6.4 6.4/3.2
Full Load Lowering Speed (m/min) @ 6 bar 7.5 7.0 7.0/3.5
No Load Lowering Speed (m/min) @ 6 bar 5.9 5.4 5.4/2.7
Air Consumption (m3/min) @ 6 bar 2.6 4.0 4.0
Air Consumption (m3/min) @ 4 bar 1.7 2.6 2.6
Toggle & Pilot Pendant Control G ¾ G ¾ G ¾
E/Stop Pilot Pendant Control G ¾ G ¾ G ¾
Supply Hose (Inside ø) (mm) 19 25 25
Sound Level (dB(A)) Full Load Lifting @ 6 bar 83 83 83
Sound Level (dB(A)) Full Load Lowering @ 6 bar 83 83 83
Dimensions A 382 466 466
B 192 215 215
C 96 108 130
D 85
E 345 345 345
F (Min) 537 548 599
G (Min) 689
Technical Drawing