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Product Description
JM Air Hoists Fixed Series(1~3t)
Product Introduction:
The JM Air Hoists Fixed Series (1~3t) is a heavy-duty range of pneumatic lifting equipment engineered for demanding material handling applications in industrial environments where safety, reliability, and durability are paramount. With a lifting capacity range of 1 to 3 tons, this series delivers robust hoisting performance in applications where electric hoists are unsuitable or hazardous.
Key Features:
1.Explosion-Proof Operation
Powered by compressed air rather than electricity, the JM series contains no spark-generating components, making it ideal for use in flammable, explosive, or high-humidity environments such as chemical plants, paint shops, mines, offshore platforms, and grain processing facilities.
2.Fixed Mounting Design
The hoist is securely suspended from a fixed overhead point (beam or hook), providing a stable and permanent lifting solution. The fixed design offers simplified installation and lower maintenance requirements compared to trolley-mounted variants.
3.Smooth & Precise Load Control
Pneumatic operation enables infinitely variable speed control, allowing operators to position heavy loads with exceptional accuracy for delicate or precision handling tasks.
4.Heavy-Duty Construction
Built with high-strength alloy steel components and corrosion-resistant materials, the JM series ensures long service life even under continuous, heavy-duty working cycles.
5.Low Noise & Vibration
Advanced air motor design minimizes operational noise and vibration, improving workplace comfort and safety.
6.Comprehensive Safety Features
Equipped with overload protection, air-cut (loss of air) protection, and a reliable braking system to ensure safe operation at all times.
Technical Parameters:
| Model | JM1-1 | JM2-2 | JM3-2 | JM3-3 | |
| Duty Classification | M3 | ||||
| Lifting Capacity | t | 1 | 2 | 3 | 3 |
| Lifting Height | m | 3 | |||
| Number of Chain Falls | 1 | 2 | 3 | ||
| Motor Output Power | kW | 0.75 | |||
| Working Pressure | bar (kg/cm²) | 6 | |||
| No-load Lifting Speed | m/min | 8 | 5 | 3 | |
| Full-load Lifting Speed | m/min | 4 | 2 | 1.7 | 1.3 |
| Full-load Lowering Speed | m/min | 9 | 4.5 | 4.8 | 3 |
| No-load Lowering Speed | m/min | 4.5 | 2.5 | 1.5 | |
| Air Consumption | m³/min | 1.5 | |||
| Air Inlet Connection | in | Rc1/2 | |||
| Air Hose Size (I.D.) | mm | 12 | |||
| Chain Size | mm | 7×21 | 8×24 | 7×21 | |
| Control Hose Length | m | 3 | |||
| Noise Level (Full-load Lifting) | dB | 77 | |||
| Noise Level (Full-load Lowering) | dB | 79 | |||
| Weight | kg | 35 | 41 | 45 | 50 |
| Notes: 1.The control hose length is configured based on the standard lifting height of 3m. 2.The net weight is calculated based on a lifting height of 3m. 3.When the working pressure is 4 bar, the hoist must be operated at a reduced load capacity. For details or any special requirements, please contact our sales engineers. | |||||
Outline Dimensions (JM1-1/JM2-2):
Outline Dimensions (JM3-3):
| Model | JM1-1 | JM2-2 | JM3-2 | JM3-3 | |
| A | mm | 520 | 624 | 724 | 814 |
| B | mm | 268 | 434 | ||
| C | mm | 200 | 293 | ||
| D | mm | 229 | |||
| E | mm | 428 | |||
| F | mm | 225 | |||
| G | mm | 203 | |||
| Hmin | mm | 468 | 540 | 645 | 676 |
| J | mm | 54 | 150 | ||
| K | mm | 214 | 284 | ||
| φ | mm | 40 | 48 | 56 | |
| M | mm | 32 | 38 | 45 | |
Typical Applications:
*Chemical and petrochemical plants
*Paint spraying workshops
*Mining and tunneling operations
*Marine and offshore lifting
*Grain and feed processing facilities
*Heavy machinery assembly and maintenance
*General workshop material handling where electricity is restricted
