A double-acting hydraulic cylinder series where both the forward and return strokes are hydraulically controlled, delivering precise positioning for controlled push-pull, assembly/disassembly, and heavy maintenance applications.
Stroke lengths built for each capacity in the HBS-CT series. Hover a stroke to see its model code; full dimensions are in the model table below. Strokes not listed are manufactured to order.
| Model Code | Push Capacity | Pull Capacity | Stroke (mm) | Closed Height A (mm) | Extended Height B (mm) | Outer Diameter D (mm) | Oil Push/Pull (cm³) | Weight (kg) |
|---|---|---|---|---|---|---|---|---|
| HBS-CT-30-209 | 30 t / 295 kN | 53 kN | 209 | 394 | 603 | 101 | 879 / 400 | 6.7 |
| HBS-CT-30-368 | 30 t / 295 kN | 53 kN | 368 | 549 | 917 | 101 | 1549 / 703 | 10.8 |
| HBS-CT-50-156 | 50 t / 498 kN | 103 kN | 156 | 331 | 487 | 127 | 1111 / 335 | 11.1 |
| HBS-CT-50-334 | 50 t / 498 kN | 103 kN | 334 | 509 | 843 | 127 | 2378 / 718 | 19.3 |
| HBS-CT-95-168 | 95 t / 933 kN | 435 kN | 168 | 357 | 525 | 177 | 2238 / 1045 | 22.7 |
| HBS-CT-95-333 | 95 t / 933 kN | 435 kN | 333 | 524 | 857 | 177 | 4439 / 2071 | 34.5 |
Maximum working pressure is fixed at 700 bar (~10,153 psi) across all models. A: closed height, B: extended height, D: outer diameter. Because the push and pull directions have separate effective areas, capacity and oil volume differ between them. Dimensions are subject to engineering verification before final production.
Hydraulically controlled retraction instead of a spring; controlled and repeatable.
Independent effective area and capacity in both the push and pull directions.
Two-way control precision for assembly and disassembly work.
Model variety across a 156–368 mm stroke range.
A wide capacity range across 6 models.
Reliable performance in press, die, and large equipment removal/installation work.
The push and pull lines are connected to the cylinder separately.
Pressure applied to the push line moves the piston forward.
Once the target position is reached, pressure is held constant.
Pressure applied to the pull line retracts the piston in a controlled manner.
At the end of the operation, pressure in both lines is safely released.
Body: 7075-T6 aluminum alloy, hard anodized coating · System: double-acting hydraulic cylinder construction, hydraulic return
It is a cylinder type with independent hydraulic lines and effective areas for both the push and pull directions, where the return stroke is also controlled hydraulically. The HBS-CT series is a hydraulic cylinder/jack series that operates on this principle.
It covers a 30–95 ton push capacity range across 6 models; stroke options range from 156 mm to 368 mm. Full dimensions and pull capacities are listed in the model table.
In single-acting cylinders, the piston returns via a spring mechanism; in the double-acting HBS-CT series, both the forward and return strokes are pressure-controlled through separate hydraulic lines, which provides more precise and repeatable positioning.
It operates with a 700 bar class hydraulic pump, using a 2× 3/8″ NPT/F connection standard with separate lines for the push and pull directions.
Because the piston rod reduces the effective area in the push direction, pull capacity is lower than push capacity; for example, in the HBS-CT-95 model push is 95 t / 933 kN while pull is 435 kN. Full values are listed in the model table.
It is used in applications requiring bidirectional controlled force, such as heavy maintenance and repair, press/die removal-installation, controlled assembly-disassembly, large equipment positioning, and industrial plant maintenance.
Weight varies by model: the smallest model (HBS-CT-30-209) weighs approximately 6.7 kg, and the largest model (HBS-CT-95-333) weighs approximately 34.5 kg.
It is manufactured with a 7075-T6 aluminum alloy, hard anodized body, providing durability suited to the double-acting hydraulic construction.
Determine the required push and pull force and stroke distance, then select the appropriate code based on the capacity and stroke values in the model table; you can also get a recommendation through the technical quote form.
Periodic visual inspection and seal replacement are recommended for both hydraulic lines; because it uses a hydraulic return system, service steps differ from spring-return models.
What sets the HBS-CT apart from the other series is its hydraulically controlled bidirectional (push-pull) operating principle. The HBS-GA is for general-purpose use, the HBS-DP for low-profile applications, and the HBS-DL for center-hole (hollow plunger) applications.
Yes. In field terminology it is also referred to as a "double-acting hydraulic jack"; in technical documentation, the term "double-acting hydraulic cylinder" is used.
Yes. We handle maintenance and repair for HBS-CT series cylinders in-house — send us your unit and we'll inspect it and manage the repair process. We also manufacture original spare parts (seals, pistons, etc.) on request for the models we produce; we don't maintain a separate parts catalog, but you can contact us directly for the part you need.
Related: HBS cylinder selection guide Cylinder use and maintenance guide Complete system solutions System selector
Share your target push-pull force and stroke details, and we'll recommend the right HBS-CT model.
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