Harjak
A mechanical wedge steel jack is a versatile and robust tool often utilized in various industrial and automotive applications for lifting, holding, or adjusting heavy loads. Comprised of a steel frame and a wedge mechanism, this type of jack operates on the principle of converting linear force into lifting power.
The wedge, typically driven by a screw or hydraulic system, slides in a controlled manner to lift or adjust the height of the load with precision.
The devices are ideally for temporary and permanent pre-loading solutions for bridge jacking, and temporary work schemes upto 200 tonnes.
| Jack Code |
CAPACITY
(kNs) |
CLOSED
HEIGHT (mm) |
OPEN
HEIGHT (mm) |
OUTSIDE
AREA OF BODY (mm) |
WEDGE SIZE
(mm) |
MAXIMUM
STROKE (mm) |
WEIGHT
(Kgs) |
|---|---|---|---|---|---|---|---|
| HRJ5-10 | 50 | 32 | 42 | 80x50 | 50x38 | 10 | 1.1 |
| HRJ15-10 | 150 | 40 | 50 | 100x100 | 70x60 | 10 | 3.2 |
| HRJ20-20 | 200 | 50 | 70 | 135x100 | 80x70 | 20 | 4.5 |
| HRJ35-20 | 350 | 60 | 80 | 150x100 | 120x80 | 20 | 7.5 |
| HRJ75-20 | 750 | 80 | 100 | 200x152 | 140x130 | 20 | 20.1 |
| HRJ120-20 | 1200 | 100 | 120 | 250x250 | 200x210 | 20 | 50.2 |
| HRJ200-20 | 2000 | 145 | 165 | 360x280 | 260x250 | 20 | 121.2 |
Need reliable heavy-duty temporary lifting solutions?
Our Harjak systems provide robust and precise load adjustment, pre-loading, and support solutions for bridge jacking, structural works, and demanding temporary lifting applications.
Explore our Harjak range, designed for temporary and permanent pre-loading applications with capacities up to 200 tonnes, delivering safe and controlled lifting performance.
