DA Rate Controls
Rate Control for a Variety of Conditions
The DA Series Rate Controls by ITT Enidine Inc. are ideally suited for high-energy, heavy load applications requiring rate control in tension, compression or both directions. These non-adjustable, custom-orificed units are designed to specific input conditions, and allow for single and multiple orifice configurations.
Upon compression of the rate control, the compression check ball seats. As the piston head moves, oil is forced through the orifice hole(s) located in the shock tube, producing the required damping force. After the oil has passed through the orifice hole(s), a portion of the oil passes through the extension check valve and fills the rod end of the shock tube. The remainder of the oil volume displaced by the piston rod compresses the foam accumulator.
Upon extension of the rate control, the extension check ball seats. As the piston head moves, oil is forced through the orifice hole(s) located in the shock tube producing the required damping force. The compression check ball is unseated by the flow of oil that fills the blind end of the shock tube.
ITT Enidine Inc.'s DA Series models can be custom orificed to provide increasing resisting force over the stroke through the use of multiple orifices in the shock tube. This can be beneficial when controlling the velocity of a lid as it closes, since the torque from the weight of the lid changes as it closes.
Yes. These shock absorbers can be orifice to provide specific damping for a particular application. When the shock absorbers are custom orifice they are referred to as CBOEM shock absorbers.
No, the design incorporates an air charged bladder accumlator.
The small series OEM shock absorbers can be adjusted by rotating the adjustment knob at the back of the shock absorber.
The maximum side-load angle allowed by Enidine Incorporated is 10° (+5°). For a rotating arm, door, lid or circuit breaker for example, the moving load should be perpendicular to the center-line of the piston rod when it is halfway through the stroke.
Locate the applications impact velocity on the Y-axis and the selected model graph line. Follow the impact velocity horizontally until it intersects the selected model graph line. Follow the intersection point vertically down to the X-axis. The value at the X-axis is the maximum allowable adjustment setting.
Enidine Incorporated offers a full assortment of accessories that include stop collars, jam nuts, cylinder clevises, foot mounts and cap pads. Not all accessories are available with all models.
Generally the shock absorber's energy capacity per hour can be increased by 20%.
DA stands for double acting non-adjustable hydraulic damper. Applications range from doors and lids to amusement rides and conveyor systems.
Longer Life - It significantly reduces shock and vibration to machinery.
Higher Operating Speeds - Machines can be operated at higher speeds because of the Shock Absorber control or gently stop moving objects.
Improved Production Quality - Harmful side effects of motion, such as noise and vibration and damaging impacts are moderate or eliminated, so the quality of production is improved.
Safer Machinery - Protects machinery and operators by offering predictable, reliable and controlled deceleration.
Improved Production Quality - Harmful side effects of motion, such as noise and vibration and damaging impacts are moderate or eliminated, so the quality of production is improved.
Safer Machinery - Protects machinery and operators by offering predictable, reliable and controlled deceleration.
Dampers, Buffers, Dashpost, Snubbers and Isolators.
The OEM small series shock absorbers are a series of adjustable shock absorbers that have bore siezes of 1/4 inch to 5/8 inch in diameter and stroke lengths of .28 inches to 2 inches depending on model.
HD is the name of Enidine Incorporated's Heavy Duty series of shock absorbers.
A specially designed DA which dampen abrupt starts and stops of power and free conveying systems.
CBOEM is a custom orifice non - adjustable unit, which meets specific application requirement.
Allows linear deceleration by providing a constant shock force over the entire stroke.
This provides the largest shock force at the beginning of the stroke when the impact velocity is highest.
This provides deceleration with a gradually increasing shock force. The initial minimal resistance at impact protects delicate loads and machinery from damage.
The OEM small bore series shock absorbers have an adjustment range of 0 minimum damping to 8.0 maximum damping .
Typically the HD models are charged at the factory to between 30 and 40 psi.
The standard operational temperature range is 15 to 180°F (-10 to 85°C).
The OEM .1 through .5 provide dashpot type damping. The OEM 1.0, OEM 1.25 x 1 and OEM 1.25 x 2 provide conventional type damping.
A. When the application's energy per hour exceeds the maximum rating for self contained units.
B. When the piston rod sequence must be controlled.