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The crimped piston accumulators incorporate a patented crimped design that provides high-strength coupling of caps to steel tube plus superior fatigue life. High grade carbon steel tube and end cap material allows heat to dissipate effectively and is micro-finished for extended seal life.
The This series is a good alternative to a diaphragm accumulator as it is can provide enhanced nitrogen gas retention and has a compact and lightweight design.
Although these accumulators are offered in standard capacities, the steel shell design affords an easy way to ”custom” manufacture an accumulator to meet the exact capacity for any customer application.
Crimped piston accumulators are available in two versions; with max. operating pressure of 275 bar and 350 bar, as well as rechargeable or tamperproof. Rechargeable models allow the user to monitor and regulate the gas pre-charge to suit different operating conditions. Tamperproof, sealed-for-life versions of the accumulators are pre-charged on assembly to customer specification and are completely maintenance free.
Parker Olaer have developed very sophisticated simulation software to optimize sizing recommendations for hydraulic accumulators. You can download the accumulator sizing software from the Product Support tab.
Example Markets:
*Forklifts and Cherry Pickers
*Transportation vehicles
* Construction and Mining
* Turbine Engines
*Machine Tools
*Hydrostatic Drives
*Assembly Automation
* Renewable Energy
Features/Benefits:
* High pressure rating of 350 bar
* Cost effective
* High performance design
* Safety critical non sudden failure
* Compact design
* Low gas loss from permeation
* Low friction seals
*Adaptable to space by variation of bore and stroke
* Handles shock load and vibration
Applications:
*Emergency Braking
* Emergency Steering
* Suspension and Ride Control
* Boom suspension systems
* Flow supplementation
* Cushioning
* Energy Storage
Function:
Hydraulic accumulators are an essential component for the optimum operation of a hydraulic circuit. The accumulator enables:
• Energy Storage: Saves energy without loss and redistributes when required therefore reducing installed power.
• Pressure Compensation: Absorbs pressure spikes from pumps or other components to control pressure and flow rates in the hydraulic circuit.
• Volume Control: Absorbs fluid volume variations induced by temperature changes in a closed hydraulic circuit and maintains a rated pressure.
• Emergency Energy Storage: In case of failure of the main energy source, these accumulators can provide sufficient energy to complete an operation or to realize a full hydraulic cycle.
• Hydraulic Spring/Shock Absorber: A piston accumulator can act as a gas spring suppressing shocks and vibrations in hydraulic systems of lifting vehicles (e.g. Forklift trucks) and maintains real suspension of the load on a gas spring.
Note: Maximum Flow Rate (lpm) based on 120 in/sec maximum piston speed, port & fitting size will become limiting factors for most applications.
