VHRDA Hollow Ram
VANKOS Center-Hole Hollow Ram Hydraulic Jacks (VHRSA and VHRDA series) are heavy-duty industrial tools designed for pushing, pulling, tensioning, and testing. Their defining feature is a central hollow plunger that allows steel cables, rods, or pulling screws to pass directly through the middle of the cylinder.
- Operating Pressure : High Performance Range
- Application : Industrial & Mobile Systems
About this item
The VANKOS VHRDA Series stands for Vankos Hollow Ram Double Acting hydraulic jacks. Unlike the single-acting VHRSA series which relies on an internal spring for retraction, the VHRDA series utilizes dynamic hydraulic oil pressure to actively power both the extension (push/advance) and retraction (pull/retract) cycles of the central plunger.
| Feature / Specification | Technical Details |
|---|---|
| Manufacturer | Vankos & Company |
| Jack Type | Single-acting, general-purpose hydraulic jack |
| Capacity Range | Standard models available from 50 to 500 tonnes (special series available from 2 tonnes onwards). |
| Maximum Working Pressure | Up to 700 bar (10,000 PSI) |
| Safety Mechanism | Threaded ram with an integrated mechanical safety lock nut for secure long-term load holding. |
| Pump System | Dual-pump hydraulic architecture featuring a high-speed positioning pump and high-pressure load pump for efficient operation. |
| Monitoring | Integrated pressure-gauge port for real-time hydraulic pressure monitoring. |
| Return Type | Load return / Gravity return mechanism. |
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