DOUBLE Pneumatic Air Hoist (0.5 to 100 Ton)
Explosion-proof pneumatic air hoists from 0.5 to 100 tonnes, powered by compressed air at 0.5 MPa. No electric sparks, so they are suited to oil and gas, chemical, marine and dusty or wet sites.
Shuangtai DOUBLE: official Malaysian distributor of Beijing Shuangtai Pneumatic Equipment Co., Ltd.
A pneumatic air hoist lifts loads with compressed air instead of electricity, so it makes no electric sparks. That makes it the safer choice for oil and gas, chemical, marine and other sites where flammable gas, vapour or dust may be present. A4 Petroleum is the official Malaysian distributor of Shuangtai DOUBLE air hoists, made by Beijing Shuangtai Pneumatic Equipment Co., Ltd., available from 0.5 to 100 tonnes.
How an air hoist works
An air compressor feeds high-pressure air to the hoist through a hose. To lift, the control valve sends air into the lower cylinder, pushing the piston up and driving the chain. To lower, air goes to the upper cylinder and the piston moves down. Opening the valve more or less gives smooth, stepless speed control, so loads can be positioned accurately.
Air hoist vs electric hoist
| Air hoist | Electric hoist | |
|---|---|---|
| Sparks | None, suited to explosion-risk areas | Needs special explosion-proof motor and controls |
| Duty | 100% on small-tonnage models | Limited by motor heating |
| Speed | 2 to 3 times faster, stepless | Usually fixed or stepped |
| Weight | About 1/3 to 1/8 of an electric hoist | Heavier for the same capacity |
| Harsh conditions | Resists acid, alkali, steam and dust | Motor and electrics need protection |
Safety features
Every HQ hoist has overload protection and air-interruption protection, which holds the load if the air supply fails. A wireless remote control is available, so the operator can stand clear of the load.
Lifting equipment used at Malaysian workplaces falls under the Occupational Safety and Health Act 1994 (OSHA) and DOSH requirements. Keep each hoist inspected and maintained, and use trained operators.
Serving Kuala Lumpur, Selangor and Johor
A4 Petroleum supplies Shuangtai air hoists from Cheras, Kuala Lumpur, to plants, shipyards, contractors and maintenance teams in Kuala Lumpur (KL), Selangor (Shah Alam, Klang, Port Klang), Johor (Johor Bahru, Pasir Gudang) and across Malaysia. Tell us the load, lifting height and air supply on site, and we will recommend a model. Need to lift on hydraulic power instead? See our hydraulic hoists. For access at height during installation, see our scaffolding services.
Request a quotation or WhatsApp +60 12-886 6025.
Key features
- No electric sparks, so suitable for areas with explosion risk
- Runs on compressed air at 0.5 MPa (works from 0.4 to 0.6 MPa)
- 100% duty cycle on small-tonnage models for continuous work
- Stepless speed control, 2 to 3 times faster than an electric hoist
- Resists acid, alkali, steam and heavy dust
- Weighs about 1/3 to 1/8 of an electric hoist of the same capacity
- Overload protection and air-interruption protection
- Optional wireless remote control
Typical applications
- Oil and gas plants, refineries and offshore platforms
- Chemical, petrochemical and paint plants
- Shipyards, ship repair and wharves
- Textile mills, logistics and warehouses
HQ series technical data
| Model | Capacity (t) | Lifting speed (m/min) | Lowering speed (m/min) | Air consumption (m³/min) | Chain falls |
|---|---|---|---|---|---|
| HQ0.5 | 0.5 | 7 | 13 | 1.2 | 1 |
| HQ1 | 1 | 5 | 8 | 1.4 | 1 |
| HQ2 | 2 | 2.5 | 4 | 1.4 | 2 |
| HQ3 | 3 | 2 | 4 | 1.8 | 2 |
| HQ5 | 5 | 1 | 1.5 | 2.5 | 2 |
| HQ10 | 10 | 0.6 | 1.25 | 3.4 | 2 |
| HQ12 | 12 | 0.5 | 1.2 | 3.5 | 2 |
| HQ15 | 16 | 0.35 | 1.1 | 3.8 | 2 |
| HQ20 | 20 | 0.6 | 1.2 | 4.7 | 2/4 |
| HQ25 | 25 | 0.5 | 1.3 | 4.7 | 2/4 |
| HQ32 | 32 | 0.4 | 0.9 | 4.7 | 2/4 |
| HQ40 | 40 | 0.3 | 1 | 5.5 | 4 |
| HQ50 | 50 | 0.25 | 1 | 5.5 | 4 |
| HQ80 | 80 | 0.2 | 1 | 8 | 6/8 |
| HQ100 | 100 | 0.2 | 1 | 8 | 6/8 |
All HQ models: rated air pressure 0.5 MPa, lifting range 0 to 20 m. Source: Beijing Shuangtai Pneumatic Equipment Co., Ltd. product manual.
Other hoists
All hoists- DOUBLE Hydraulic Hoist (3 to 50 Ton): Hydraulic hoists from 3 to 50 tonnes for marine vessels, oil platforms and other heavy-duty sites, with stable transmission, stepless speed control, low noise and a spring-applied brake.
Air Hoist questions
What is a pneumatic air hoist?
A pneumatic air hoist lifts loads using compressed air instead of an electric motor. Air from a compressor drives a piston and chain through a control valve, so the hoist makes no electric sparks and can be used where flammable gas, vapour or dust is present.
Why choose an air hoist instead of an electric hoist?
An air hoist has no electric sparks, which suits explosion-risk areas. It can run continuously on small-tonnage models, its speed can be adjusted steplessly, it resists acid, alkali, steam and dust, and it weighs about one third to one eighth of an electric hoist of the same capacity.
What air supply does the HQ air hoist need?
The HQ series is rated at 0.5 MPa and works efficiently from 0.4 to 0.6 MPa. Air consumption ranges from 1.2 m³/min on the HQ0.5 to 8 m³/min on the HQ80 and HQ100, so size the compressor to the model you choose.
What capacities are available?
Fifteen models from 0.5 tonne (HQ0.5) to 100 tonnes (HQ100), all with a 0 to 20 m lifting range. Larger models use 2, 4, 6 or 8 chain falls.
Who supplies Shuangtai air hoists in Kuala Lumpur, Selangor and Johor?
A4 Petroleum Sdn. Bhd. in Cheras, Kuala Lumpur, is the official Malaysian distributor of Beijing Shuangtai Pneumatic Equipment Co., Ltd. We supply air hoists to customers in KL, Selangor, Johor and across Malaysia. WhatsApp +60 12-886 6025 for a quotation.
Enquire about a air hoist
Tell us the load, lifting height and power supply on site. We reply with a recommended model, quotation and lead time.