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Product Description
HQ Type Air Hoists(16~100t)
Product Introduction:
The HQ Series Pneumatic Hoist is a high-performance, explosion-proof lifting solution engineered for demanding industrial environments where safety and reliability are paramount. Powered entirely by compressed air, it eliminates the risk of electrical sparks, making it the ideal choice for hazardous areas including petroleum refineries, chemical plants, coal mines, paint shops, textile mills, and shipyards .
The hoist operates by using compressed air to drive a pneumatic motor, which transmits power through a planetary gear reducer to increase torque and drive the lifting chain sprocket . The HQ Series consists of three main assemblies: the lifting mechanism (including the pneumatic motor, planetary gearbox, suspension assembly, brake system, load chain, and main control valve), the traveling mechanism (pneumatic trolley for horizontal movement), and the air distribution system . The lifting and lowering operations are precisely controlled through the main control valve, while the brake mechanism ensures secure positioning and stopping at any point .
Working Principle of Pneumatic Hoist:
A pneumatic hoist uses compressed air as its power source to drive a pneumatic motor. The rotation is transmitted through a gearbox which increases torque, and then drives a sprocket to rotate the lifting chain, thereby completing the lifting operation. The hoist is mainly composed of a pneumatic motor, a planetary gear reducer, manual control valves, a main control valve, a suspension assembly, a braking mechanism, and a load chain. The pneumatic hoist can be combined with explosion-proof manual trolleys or pneumatic trolleys to form a mobile pneumatic lifting system. The lifting mechanism controls the main control valve to achieve lifting and lowering of loads, and the brake is engaged or disengaged to provide positioning and stopping during operation. The chain-type pneumatic hoist ensures safe lifting operations. The lifting mechanism can be used as a fixed unit, or installed underneath a traveling mechanism for mobile applications.
Technical Specifications:
| Motor output power | KW | 3.5 | 3.5 | 6.3 | 6.3 | 9 | 9 |
| Lifting height | M | 2～10 (The standard height is 3 meters) | |||||
| Full load lifting speed | m/min | 1 | 0.7 | 1 | 0.7 | 0.55 | 0.4 |
| Empty lifting speed | m/min | 2 | 1.4 | 2.3 | 1.2 | 1.3 | 1 |
| Full load descent speed | m/min | 1.6 | 1.6 | 2.8 | 1.5 | 1.2 | 1 |
| Full load gas consumption-increase | m3/min | 4 | 4 | 6.5 | 4 | 7.6 | 7.6 |
| Full load gas consumption-decrease | m3/min | 5.5 | 5.5 | 5.5 | 5.5 | 6 | 6 |
| Chain size | mm | 13*36 | 13*36 | 23.5*66 | 23.5*66 | 32*90 | 32*90 |
| Chain weight | kg/m | 3.8 | 3.8 | 12.2 | 12.2 | 21.3 | 21.3 |
| Standard weight (3 meters lifting height) | kg | 210 | 310 | 520 | 935 | 1750 | 1800 |
| Controller trachea length | m | 2～5 ( The standard is 3 meters) | |||||
| Full load noise-increased | DB | 78 | 78 | 78 | 78 | 78 | 78 |
| Full load noise-reduced | DB | 80 | 80 | 82 | 82 | 85 | 85 |
| Tracheal joint | in | G3/4 | G3/4 | G11/2 | G11/2 | G11/2 | G11/2 |
| Air tube size(inner diameter φ) | mm | 19 | 19 | 35 | 35 | 35 | 35 |
Pneumatic Hoist Outline Drawing 1:
| Type | Unit | HQ1.5-1 | HQ2-2 | HQ3-1 | HQ3-2 | HQ6-2 | HQ10-2 |
| A | mm | 690 | 556 | 905 | 690 | 905 | 1050 |
| A1 | mm | 608 | 585 | 885 | 608 | 885 | 960 |
| B | mm | 436 | 35 | 539 | 436 | 539 | 558 |
| C | mm | 202 | 146 | 246.5 | 202 | 246.5 | 256 |
| D | mm | 176 | 185 | 220 | 176 | 220 | 256 |
| E | mm | 100 | 140 | 146 | 100 | 146 | 128 |
| F | mm | 150 | 385 | 158 | 150 | 158 | 205 |
| J | mm | 90 | 65 | 120 | 90 | 120 | 135 |
| K | mm | 26.5 | 26 | 38 | 26.5 | 38 | 49 |
| H 1 Minimum headroom | mm | 659 | 500 | 807 | 659 | 807 | 969 |
| H2 | mm | 439 | 338 | 548 | 439 | 548 | 652 |
| H3 | mm | 597 | 528 | 768 | 597 | 768 | 860 |
| Φa | mm | 53 | 48 | 69 | 53 | 69 | 55 |
| Φb | mm | 53 | 48 | 69 | 53 | 69 | 55 |
| Φc | mm | 28 | 28 | 33 | 28 | 33 | 36 |
Pneumatic Hoist Outline Drawing 2:
| Type | Unit | HQ16-3 | HQ20-4 | HQ30-2 | HQ50-4 | HQ75-3 | HQ100-4 |
| A | mm | 1350 | 1195 | 1370 | 1610 | 2535 | 2610 |
| B | mm | 558 | 559 | 900 | 955 | 1535 | 1535 |
| C | mm | 246.5 | 247 | 450 | 535 | 820 | 820 |
| D | mm | 386 | 472 | 445 | 445 | 600 | 600 |
| E | mm | 195 | 127 | 270 | 270 | 405 | 365 |
| F | mm | 262 | 365 | 310 | 350 | 450 | 450 |
| H 1 Minimum headroom | mm | 1163 | 1117 | 1260 | 1485 | 1935 | 1935 |
| H2 | mm | 675 | 630 | 825 | 950 | 1250 | 1250 |
| Qa | mm | 95 | 102 | 126 | 120 | 315 | 355 |
| Qb | mm | 95 | 102 | 126 | 120 | 315 | 355 |
| N | mm | 88 | 95 | 113 | 122 | 250 | 280 |
Pneumatic Hoist Outline Drawing 3:
| Air Hoists | HQ2-2 | HQ3-2 | HQ6-2 | HQ10-2 | HQ16-3 | HQ20-4 |
| Traveling Trolley | QDC-2 | QDC-2 | QDC-6 | QDC-10 | QDC-16 | QDC-20 |
| A | 325 | 340 | 400 | 496 | 496 | 675 |
| B | 125 | 140 | 155 | 186 | 186 | 270 |
| b Track width range | 80-120 | 110-150 | 200-250 | 200-250 | 200-250 | 250-300 |
| bm | 168 | 235 | 330 | 350 | 375 | 375 |
| C | 218 | 250 | 290 | 364 | 364 | 490 |
| D | 110 | 120 | 135 | 166 | 166 | 240 |
| E | 45 | 68 | 53 | 144 | 147 | 157 |
| F | 210 | 290 | 322 | 358.5 | 358.5 | 313 |
| G | 145 | 176 | 256 | 256 | 386 | 472 |
| H Minimum headroom | 615 | 626 | 973 | 973 | 980 | 1270 |
| h | 120 | 130 | 140 | 140 | 166 | 250 |
| J | 90 | 93 | 118 | 135 | 200 | 120 |
| K | 26 | 30 | 36 | 49 | 60 | 72 |
| L | 169 | 232.5 | 293 | 303 | 295 | 293 |
| M | 146 | 203.5 | 249 | 256 | 245 | 247 |
| N | 33 | 35 | 48 | 66 | 88 | 95 |
| P | 140 | 146 | 142.7 | 128 | 195 | 127 |
| ø | 48 | 53 | 69 | 71 | 95 | 102 |
| Trolley Mechanism | Model | Unit | HQ2-2 | HQ3-2 | HQ6-2 | HQ10-2 | HQ16-3 | HQ20-4 | HQ30-2 | HQ50-4 |
| Motor Power | kw | 0.25 | 0.25 | 2 | 3.5 | 3.5 | 3.5 | 3.5 | 3.5 | |
| Rated Load Travel Speed | m/min | 13 | 13 | 10 | 10 | 8 | 6 | 5 | 3 | |
| Air Consumption | m/mim | 0.45 | 0.45 | 2.6 | 4 | 4 | 4 | 4 | 4 | |
| Air Hose Connector | in | G1/2 | G1/2 | G3/4 | G3/4 | G3/4 | G3/4 | 1 | 1 | |
| Air Hose Size (I.D.) | in | G1/2 | G1/2 | G1/2 | G1/2 | G1/2 | G/2 | 1 | 1 | |
| Weight | Trolley Weight | kg | 40 | 49 | 75 | 89 | 135 | 245 | 180 | 490 |
Key advantages of the HQ Series include:
1.Intrinsic Explosion-Proof Safety: Operates completely spark-free without any electrical components, meeting stringent ATEX zone requirements and eliminating ignition sources in flammable environments .
2.Infinitely Variable Speed Control: Enables smooth, precise load positioning down to the centimeter level, with lifting speeds significantly faster than manual or electric hoists .
3.Overload Protection: Automatically stops the motor when attempting to lift loads exceeding rated capacity, preventing equipment damage and ensuring operator safety .
4.Air-Cutoff Protection: In the event of sudden compressed air supply interruption, a mechanical load brake automatically engages to prevent uncontrolled load dropping .
5.100% Continuous Duty Cycle: The flowing compressed air continuously cools the motor, eliminating overheating risks and enabling uninterrupted operation even in multi-shift production lines .
6.Robust and Maintenance-Friendly: With no electronic components, the HQ Series withstands dust, moisture, high temperatures, and vibration. The compact, lightweight design (40-50% lighter than electric hoists) makes installation and transport effortless .
7.Available in capacities ranging from 16 tons to 100 tons with various lifting heights and chain configurations, the HQ Series can be configured as fixed units or combined with pneumatic trolleys for mobile applications along curved or monorail tracks . The hoist is manufactured in accordance with ISO 9001 quality standards and carries multiple product patents, ensuring long service life and low total cost of ownership .
