
Ingersoll Rand ML500K-2C12-B8U MLK Series Air Chain Hoist is designed for reliable overhead lifting in manufacturing, maintenance, assembly, and material handling applications. Featuring a 1/2 Ton (1,100 lb / 500 kg) rated capacity, 12 ft lift, and 8 ft pendent drop, this pneumatic chain hoist delivers smooth, precise load positioning while operating on compressed air for continuous industrial service. The ergonomic 2-button pendent control provides responsive lifting and lowering, while the Bullard self-closing bottom hook enhances load retention. The "U" configuration includes a fabric chain container to safely manage excess load chain during operation.
Powered by a high-efficiency six-vane air motor, the ML500K-2C12-B8U is engineered for a continuous 100% duty cycle. A spring-engaged, air-release non-asbestos disc brake automatically secures suspended loads whenever the controls are released. The compact hook-mounted design minimizes installation headroom, while upper and lower limit stops help protect the hoist by preventing excessive chain travel. According to the Ingersoll Rand 7756 Industrial Lifting Equipment Catalog, this model utilizes a single-fall load chain configuration.
Type: Air Chain Hoist | Series: MLK Series | Model: ML500K-2C12-B8U | Capacity: 1/2 Ton (1,100 lb / 500 kg) | Lift: 12 ft | Pendent Drop: 8 ft | Control Type: 2-Button Pendent Control | Top Suspension: Top Hook | Bottom Hook: Bullard Self-Closing Hook | Chain Container: Fabric Chain Container | Chain Falls: 1 | Load Chain Size: 6.4 × 19.5 mm | Headroom: 18 in (457.2 mm) | Lifting Speed: 55 ft/min | Lowering Speed: 97 ft/min | Air Inlet: 1/4 in. NPT | Operating Pressure: 90 PSI (6.3 bar) | Duty Cycle: 100%
Features:
- High-performance six-vane pneumatic motor provides continuous 100% duty cycle operation.
- Responsive 2-button pendent control allows smooth and accurate lifting and lowering.
- Spring-engaged, air-release non-asbestos disc brake automatically holds suspended loads.
- Single-fall load chain configuration provides efficient lifting performance.
- Bullard self-closing bottom hook offers positive load retention for enhanced lifting safety.
- Fabric chain container keeps excess load chain organized and protected during operation.
- Upper and lower limit stops help prevent excessive chain travel.
- Compact hook-mounted construction minimizes installation headroom.
- Designed to meet ASME B30.16, ASME HST-5 Duty Rating A5, and FEM/ISO Classification 1Am/M4.
Applications:
- Manufacturing and production facilities.
- Industrial maintenance and repair operations.
- Machine shops and fabrication plants.
- Assembly workstations requiring controlled overhead lifting.
- General compressed air-powered material handling applications.
FAQs:
- Q: What is the lifting capacity of this hoist?
A: The ML500K-2C12-B8U is rated for 1/2 Ton (1,100 lb / 500 kg). - Q: What type of hook is supplied?
A: This model is equipped with a Bullard self-closing bottom hook for secure load retention. - Q: How many chain falls does this hoist use?
A: The Ingersoll Rand manufacturer catalog specifies a single-fall (1-fall) load chain configuration. - Q: Does this model include a chain container?
A: Yes. The "U" configuration includes a fabric chain container for managing excess load chain. - Q: What air pressure is required?
A: The hoist is designed to operate using clean, dry compressed air at 90 PSI (6.3 bar).

| SKU | Capacity | Hook Mount Headroom |
Trolley Mount Headroom |
Lifting Speed | Lowering Speed | Chain Size |
Chain Weight (per foot of lift) |
Net Weight w/10 ft of Lift |
||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| lb | metric tons |
# Falls | in | mm | in | mm | Rated Load | No Load | Rated Load | No Load | lb | kg | lb | kg | ||||||
| ft/min | m/min | ft/min | m/min | ft/min | m/min | ft/min | m/min | |||||||||||||
| ML250K | 550 | 0.25 | 1 | 18 | 457.2 | 18 | 457.2 | 101 | 30.8 | 171 | 52.1 | 117 | 35.7 | 99 | 30.2 | 6.4 x 19.5 | 0.6 | 0.3 | 48 | 21.8 |
| ML250KS | 550 | 0.25 | 1 | 18 | 457.2 | 18 | 457.2 | 40 | 12.2 | 71 | 21.6 | 90 | 27.4 | 53 | 16.2 | 6.4 x 19.5 | 0.6 | 0.3 | 48 | 21.8 |
| ML250KR | 550 | 0.25 | 1 | 18 | 457.2 | 18 | 457.2 | 26 | 7.9 | 42 | 12.8 | 38 | 11.6 | 30 | 9.1 | 6.4 x 19.5 | 0.6 | 0.3 | 48 | 21.8 |
| ML500K | 1,100 | 0.50 | 1 | 18 | 457.2 | 18 | 457.2 | 55 | 16.8 | 106 | 32.3 | 97 | 29.6 | 59 | 18 | 6.4 x 19.5 | 0.6 | 0.3 | 48 | 21.8 |
| ML500KS | 1,100 | 0.50 | 1 | 18 | 457.2 | 18 | 457.2 | 22 | 6.7 | 44 | 13.4 | 66 | 20.1 | 32 | 9.8 | 6.4 x 19.5 | 0.6 | 0.3 | 48 | 21.8 |
| ML500KR | 1,100 | 0.50 | 2 | 18 | 457.2 | 18 | 457.2 | 13 | 4 | 21 | 6.4 | 20 | 6.1 | 15 | 4.6 | 6.4 x 19.5 | 1.1 | 0.5 | 61 | 27.7 |
| ML1000K | 2,200 | 1 | 2 | 18 | 457.2 | 18 | 457.2 | 28 | 8.5 | 53 | 16.2 | 49 | 14.9 | 30 | 9.1 | 6.4 x 19.5 | 1.1 | 0.5 | 61 | 27.7 |
| ML1000KS | 2,200 | 1 | 2 | 18 | 457.2 | 18 | 457.2 | 11 | 3.4 | 22 | 6.7 | 33 | 10.1 | 16 | 4.9 | 6.4 x 19.5 | 1.1 | 0.5 | 61 | 27.7 |
| HL1000K | 2,200 | 1 | 1 | 18.5 | 469.9 | 18.1 | 459.7 | 26 | 7.9 | 40 | 12.2 | 37 | 11.3 | 26 | 7.9 | 9.5 x 25.7 | 1.3 | 0.6 | 84 | 38.1 |
| HL1000KR | 2,200 | 1 | 1 | 18.5 | 469.9 | 18.1 | 459.7 | 26 | 7.9 | 40 | 12.2 | 37 | 11.3 | 26 | 7.9 | 9.5 x 25.7 | 1.3 | 0.6 | 84 | 38.1 |
| HL1500K | 3,300 | 1.50 | 1 | 18.8 | 477.5 | 18.9 | 480.1 | 16 | 4.9 | 28 | 8.5 | 26 | 7.9 | 16 | 4.9 | 9.5 x 25.7 | 1.3 | 0.6 | 84 | 38.1 |
| HL2000K | 4,400 | 2 | 2 | 23 | 584.2 | 21.6 | 548.6 | 13 | 4 | 20 | 6.1 | 18 | 5.5 | 13 | 4 | 9.5 x 25.7 | 2.6 | 1.2 | 125 | 56.7 |
| HL3000K | 6,600 | 3 | 2 | 25 | 635 | 22.6 | 574 | 8 | 2.4 | 14 | 4.3 | 13 | 4 | 8 | 2.4 | 9.5 x 25.7 | 2.6 | 1.2 | 125 | 56.7 |
| HL4500K | 9,900 | 4.50 | 3 | 30.9 | 784.9 | 28 | 711.2 | 4.6 | 1.4 | 10.5 | 3.2 | 10 | 3.1 | 6.6 | 2 | 9.5 x 25.7 | 3.9 | 1.8 | 193 | 87.5 |
| HL6000K | 13,200 | 6 | 4 | 36.2 | 919.5 | 32.2 | 817.9 | 3.5 | 1.1 | 8.4 | 2.6 | 7.6 | 2.3 | 4.8 | 1.5 | 9.5 x 25.7 | 5.2 | 2.4 | 248 | 112.5 |
Looking for more information about Ingersoll Rand Air Hoist? Click here to view the Catalog
Need more feet of chain or a longer pendant hose? How about a motorized trolley? Give us a call at 1-800-608-5210 or email info@intlairtool.com. We can help!
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