The H-Lift Mechanical Rack Jack (RJ Type) is a robust lifting tool designed for raising and lowering heavy loads without the need for electricity or hydraulics. Featuring a sturdy steel framework and a precision ratchet mechanism, this jack provides reliable vertical or horizontal lifting power. Its back-and-forth handle action ensures operation even in confined spaces, making it an ideal choice for automotive repairs, industrial maintenance, and construction projects.
H-Lift RJ Type Mechanical Rack Jacks are robust, industrial-grade lifting tools designed for lifting, lowering, pushing, and pulling heavy loads. Featuring a dual lifting design, they allow loads to be lifted from the Head (top) or the Toe (bottom), making them ideal for low-clearance applications such as machinery alignment and railway maintenance.
Designed for both vertical lifting and horizontal pushing applications. Perfect for lifting heavy machinery, aligning structural components, or railway track maintenance.
Lifts from the Head or the Toe. The low-profile toe allows access under loads with minimal clearance. (Note: Toe capacity derating applies for larger models).
Equipped with double safety pawls and a self-locking mechanism to prevent accidental load descent, ensuring controlled and safe lowering.
Operated via a crank with a folding handle, offering a "back and forth" action that allows for operation in confined spaces.
Q: Can I use this jack horizontally?
A: Yes, the H-Lift RJ Mechanical Rack Jack is designed to operate securely in both vertical (lifting) and horizontal (pushing/spreading) positions.
Q: Is the lifting capacity the same on the head and the toe?
A: For models RJ015 (1.5t) to RJ100 (10t), the capacity is 100% on both head and toe. For heavier models RJ160 (16t) and RJ200 (20t), the toe capacity is reduced to 70% of the rated WLL.
| Item No. | Capacity (t) | Proof Load (kN) | Effort to Lift (N) | Stroke (mm) | Min. Lifting Height (mm) | Dimensions (mm) | N.W. (kg) | Product Code | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| F (Head) | H (Toe) | A | B | C | D | E | G | K | R | |||||||
| RJ015 | 1.5 | 18.4 | 150 | 300 | 60 | 600 | 163 | 190 | 273 | 100 | 55 | 110 | 113 | 225 | 13.5 | 802001015 |
| RJ030 | 3 | 36.8 | 280 | 350 | 70 | 730 | 197 | 200 | 296 | 130 | 60 | 140 | 127 | 250 | 21.2 | 802001030 |
| RJ050 | 5 | 61.3 | 280 | 350 | 80 | 730 | 189 | 239 | 335 | 140 | 71 | 170 | 127 | 275 | 28.5 | 802001050 |
| RJ100 | 10 | 122.5 | 560 | 410 | 85 | 800 | 250 | 293 | 498 | 140 | 86 | 170 | 248 | 300 | 46.8 | 802001100 |
| RJ160 | 16 | 196 | 640 | 320 | 95 | 800 | 275 | 320 | 514 | 150 | 78 | 180 | 250 | 300 | 65 | 802001160 |
| RJ200 | 20 | 245 | 640 | 320 | 100 | 860 | 275 | 335 | 529 | 150 | 78 | 180 | 250 | 380 | 75 | 802001200 |
For 16 Tonne and 20 Tonne models, the lifting capacity on the TOE is reduced to 70% of the rated Working Load Limit (WLL). Always check the load weight and lifting point before operation.
Jacks may be hydraulic or mechanical in operation and are available in a wide range of capacities and designs. Proper selection is critical for safety.
Multiple Jacks: Most operations require multiple jacks. It is impossible to raise/lower them in perfect unison, causing uneven loading. Ensure jack capacity is adequate to handle load transfer. Keep the load level.
Floor Stability: Ensure the floor can withstand the point load. Use floor plates to spread the load if necessary. Avoid buried cables or pipes.
Contact: The jack head must be in full, firm contact with the jacking point. Use packers to prevent slipping.
Store jacks upright with the ram/rack/screw fully lowered to protect them from damage. Remove handles/levers and store separately. Never store damaged jacks.
Clean jacks regularly to remove dirt from racks, screws, and seals. Check hydraulic oil levels. Lubricate moving mechanical parts.
Defects to Watch For:
A mechanical rack jack, often referred to simply as a rack jack or screw jack, is a mechanical device designed for lifting heavy loads vertically. Operating on the principle of a threaded screw mechanism, it converts rotational motion into vertical movement to raise or lower loads with precision.
Design Components:
The threaded screw mechanism allows users to lift heavy loads with significantly less physical effort compared to manual lifting.
Height adjustment is achieved by turning the crank handle. The lifting rate is directly controlled by the speed at which the handle is turned.
Many models include braking mechanisms or locking systems to prevent the load from lowering unintentionally.
Designed with a broad base and rigid structure to provide maximum stability and prevent tipping during use.
Rack jacks are used when precise, controlled vertical lifting is required:
While rack jacks are highly effective for vertical lifting, they are not typically designed for horizontal movement. If horizontal shifting of the load is required, additional equipment (such as load moving skates) or mechanisms must be used.
To ensure safe and efficient operation, regular maintenance is required:
