JML-18X 650 lb Capacity Material Lift, 18 Ft. Lift Height

JET JML-18X Material Lift — 650 lb Capacity, 18 ft Lift Height

The JET JML-18X is a heavy-duty manual material lift engineered for contractors and trades professionals who need to raise loads up to 650 lbs to heights up to 18 ft, 10 in. (forks mounted up). Built around a 3-section telescoping mast, the JML-18X supports two distinct operating modes — Standard Lift Mode and Counterbalance Lift Mode — giving crews the flexibility to work close to walls or obstructions without sacrificing stability. The winch accepts both a manual crank handle and a drill drive input, allowing operators to choose the lifting method that best suits the job site. A two-year warranty and JET's authorized service network back the unit for long-term, professional use.

Technical Specifications

Stowed / Transport Dimensions

The JML-18X occupies the mid-range of JET's X-Series material lift lineup, offering the same 650 lb capacity and winch system as the larger JML-24X but in a more compact 3-section mast configuration that is lighter (376 lbs without counterbalance) and easier to transport. Compared to the entry-level JML-12X, the JML-18X delivers nearly 6 additional feet of maximum lift height, making it the practical choice for two-story interior work and elevated exterior installations where the 12-ft model falls short.

Key Features & Benefits

Dual Operating Modes — Standard and Counterbalance

The JML-18X supports both Standard Lift Mode (legs forward) and Counterbalance Lift Mode (legs rearward with the JET counterbalance weight assembly). Counterbalance mode lets crews position and lift loads directly against a forward wall or obstruction — a critical capability when installing materials in tight interior spaces where a standard stance would be blocked.

Drill-Drive Winch with 24-to-1 Gear Ratio

The winch accepts a standard drill via a 3/4 in. 6-point socket input, with a 24-to-1 gear ratio and a maximum rated input of 500 RPM and 1400 in-lbs of torque. This allows operators to raise heavy loads quickly without manual cranking fatigue, while the gear ratio provides the mechanical advantage needed to lift the full 650 lb rated capacity.

3-Section Telescoping Mast

The 3-section telescoping mast extends to a maximum fork height of 18 ft., 10 in. (forks up) and retracts to a unit height of 7 ft., 3 in. for indoor maneuvering. The mast locking arm and mast position locking pin secure the assembly during both operation and transport.

Mast Safety Brake System

An integrated mast safety brake system activates automatically if the cable breaks under load, preventing an uncontrolled drop of the elevated load. This is a critical safety feature for overhead lifting operations where a sudden load release could cause serious injury or property damage.

Rear Cable Guard Shield

A dedicated rear cable guard shield protects the cable and rear mast pulley from jobsite debris and accidental contact. The shield is removable with standard 1/2 in. wrenches or sockets for cable inspection and service access.

Forklift Pockets for Jobsite Mobility

Built-in forklift pockets (5.75 x 1.75 in. internal dimensions) allow the unit to be repositioned on the jobsite using a forklift without additional rigging. Combined with the horizontal transport mode (4 ft., 4 in. height, 7 ft., 3 in. length), the JML-18X is designed to move efficiently between work areas and in and out of trucks or trailers.

Reversible Lifting Forks with Extension Compatibility

The 17 x 28.25 in. lifting forks mount in two orientations on the carriage, providing different effective lift heights from the same mast position. Optional fork extensions shift the load center to 42 in., with a corresponding rated capacity of 175 lbs for longer or wider loads.

Adjustable Stabilizer Legs and Locking Casters

Stabilizer legs with adjustable locking casters extend the footprint for load stability, while fixed swivel casters and rear locking casters allow controlled repositioning on level surfaces. All casters must be locked and stabilizers fully extended before lifting any load.

Common Applications

Drywall and Ceiling Panel Installation

Raises full sheets of drywall or ceiling panels to working height for installation crews, reducing manual lifting and the need for additional staging equipment.

HVAC Equipment Placement

Positions air handlers, ductwork sections, and other HVAC components at ceiling or mezzanine level during mechanical rough-in and equipment installation.

Electrical and Lighting Fixture Installation

Supports electricians lifting heavy fixtures, conduit bundles, or panel components to overhead mounting positions up to 18 ft., 10 in.

Plumbing and Pipe Installation

Holds pipe sections and plumbing assemblies at elevation while crews make connections, eliminating the need for a second worker to support the load manually.

Wall-Adjacent Lifts in Counterbalance Mode

Counterbalance Lift Mode (with the JET counterbalance weight assembly) allows the operator to raise loads directly against a forward wall or obstruction — useful for installing materials in corridors, stairwells, or other confined areas.

Jobsite Material Staging and Repositioning

The forklift pockets and horizontal transport mode allow the JML-18X to be moved between floors or work areas efficiently, making it practical for multi-trade jobsites where the lift must serve multiple crews or locations.

Compatible Materials

• Drywall sheets and ceiling panels
• HVAC equipment and ductwork sections
• Electrical fixtures, conduit, and panel components
• Plumbing pipe and assemblies
• General construction materials within rated load limits (650 lbs at 14 in. load center, 430 lbs at 24 in. load center, 175 lbs at 42 in. load center with fork extensions)

Product Documents

• JML-24X/18X/12X Operating Instructions & Parts Manual
• JML-24X/18X/12X Service Manual

Safety Data Summary

Hazard Information

• Tip-over hazard if load exceeds rated capacity, load is not centered and balanced on forks, or stabilizing legs are not fully extended and locked
• Tip-over hazard in Counterbalance Lift Mode if the JET counterbalance weight assembly is not used
• Electrical hazard — lift is not insulated from electrical current; contact with energized power lines can cause severe injury or death
• Fall hazard — do not use to lift, lower, support, or transport people; do not stand on forks or climb the mast
• Cable failure hazard if cable is kinked, frayed, worn, or damaged; replace with factory replacement cable only
• Pinch point hazards at folding legs, mast sections, winch, cable, and lifting forks
• Do not operate in strong or gusty winds, during storms, or if lightning is in the area

Personal Protective Equipment

• Hard hat
• Safety glasses
• Steel-toe shoes
• Gloves

Safe Handling

• Use only on solid, level surfaces capable of supporting the weight of the lift and load
• Do not move the lift to a different location while a load is attached and elevated; lower mast to lowest position and remove load before moving
• Do not leave the lift unattended with a load attached and elevated
• Always leave at least five wraps of cable on the winch drum
• When using a drill to drive the winch, do not exceed 1400 in-lbs of torque or 500 RPM
• Maintain adequate clearance to overhead wires and obstructions when raising, lowering, or moving the lift
• Use proper lifting practices and multiple people when moving the mast assembly to or from horizontal transport mode
• Perform non-load operation tests before each use
• Inspect cable for damage prior to each use; do not attempt to lengthen or repair cables

Frequently Asked Questions

Q: What is the maximum lift height of the JML-18X?
A: With forks mounted up on the carriage, the maximum lift height is 18 ft., 10 in. With forks mounted down on the carriage, the maximum lift height is 17 ft., 1 in.

Q: Can the JML-18X be operated with a power drill instead of the manual crank?
A: Yes. The winch includes a drill socket attach that accepts a 3/4 in. 6-point socket. The drill input has a 24-to-1 gear ratio, a maximum rated speed of 500 RPM (no load), and a maximum rated torque of 1400 in-lbs. Do not use a drill rated above 1400 in-lbs of torque, as excessive torque can cause cable breakage.

Q: What is the rated lifting capacity, and does it change with load position?
A: Yes. At a 14 in. load center, the rated capacity is 650 lbs. At a 24 in. load center, the rated capacity is 430 lbs. With fork extensions at a 42 in. load center, the rated capacity is 175 lbs.

Q: What is Counterbalance Lift Mode and when should it be used?
A: Counterbalance Lift Mode orients the pivoting/rotating legs to the rear, allowing the operator to position and lift loads close to a forward wall or obstruction. This mode requires the JET counterbalance weight assembly (250 lbs) to be properly installed. Do not use any other object or method to apply counterbalance weight — doing so will make the lift unstable and can cause it to tip over.

Q: Can the JML-18X be moved with a forklift?
A: Yes. The unit includes built-in forklift pockets with internal dimensions of 5.75 x 1.75 in. The lift can also be placed in horizontal transport mode (4 ft., 4 in. height, 7 ft., 3 in. length) for loading into a truck or trailer.

Q: What replacement cable should be used if the cable needs to be replaced?
A: Only factory replacement cables approved and provided by JET should be used. Do not attempt to lengthen or repair cables, and do not use any other type of cable. Refer to the JML-24X/18X/12X Service Manual for cable replacement procedures.