Designed for dependable overhead lifting in manufacturing, maintenance, assembly, and material handling applications, the Ingersoll Rand ML250K-1C15-C11U Air Chain Hoist combines a 1/4 Ton (550 lb / 250 kg) capacity with a 15 ft lift and 11 ft pull chain drop for efficient manual load positioning. Part of the MLK Series, this pneumatic chain hoist features a six-vane air motor engineered for continuous 100% duty-cycle operation, delivering reliable lifting performance throughout demanding industrial shifts. The pull chain control allows the operator to raise and lower loads without a pendent, while the steel snap hook with safety latch provides secure load engagement.
Engineered for reliable industrial service, the ML250K-1C15-C11U features a spring-engaged, air-release non-asbestos disc brake that automatically secures suspended loads whenever the pull chain control is released. Upper and lower limit stops help prevent excessive chain travel, while the compact hook-mounted configuration minimizes installation headroom requirements. An integrated fabric chain container keeps excess load chain organized during operation, making this hoist well suited for production facilities, maintenance departments, fabrication shops, and industrial workstations requiring manual pull chain operation.
Type: Air Chain Hoist | Series: MLK Series | Capacity: 1/4 Ton (550 lb / 250 kg) | Lift: 15 ft | Pull Chain Drop: 11 ft | Control Type: Pull Chain Control | Top Suspension: Top Hook | Bottom Hook: Steel Snap Hook with Safety Latch | Chain Container: Fabric Chain Container | Chain Falls: 1 | Load Chain Size: 4 × 12 mm | Air Inlet: 1/4 in. NPT | Operating Pressure: 70–100 PSI | Duty Cycle: 100%
Features:
- Six-vane air motor provides continuous 100% duty cycle performance.
- Pull chain control allows manual operation without the need for a pendent control station.
- Spring-engaged, air-release non-asbestos disc brake securely holds suspended loads.
- Upper and lower limit stops help prevent excessive chain travel during operation.
- Steel snap hook with integrated safety latch provides dependable load attachment.
- Fabric chain container keeps excess load chain organized during operation.
- Single-fall load chain configuration supports the rated 1/4 ton lifting capacity.
- Meets ASME B30.16, ASME HST-5 Duty Rating A5, and FEM/ISO Classification 1Am/M4.
Applications:
- Manufacturing facilities requiring manually controlled pneumatic lifting.
- Maintenance departments servicing machinery and production equipment.
- Machine shops and fabrication facilities handling fixtures and fabricated components.
- Assembly stations where pull chain operation provides convenient load control.
- General material handling applications utilizing compressed air-powered lifting equipment.
FAQs:
- Q: What is the lifting capacity of this hoist?
A: The ML250K-1C15-C11U is rated to lift up to 1/4 ton (550 lb / 250 kg). - Q: What type of control does this model use?
A: This hoist uses a manual pull chain control instead of a pendent control. - Q: How many chain falls does this hoist use?
A: This ML250K model utilizes a single-fall (1-fall) load chain configuration designed for its rated capacity. - Q: Does this model include a chain container?
A: Yes. A fabric chain container is included to keep excess load chain organized during operation. - Q: Is this hoist suitable for continuous-duty industrial operation?
A: Yes. The six-vane pneumatic motor is designed for a 100% duty cycle, making it suitable for demanding industrial lifting applications.

| 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!
warning WARNING: This or other products sold on this website may expose you to chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.
For more information go to www.P65Warnings.ca.gov

