Cylinders allow hydraulic systems to utilize linear motion and force without mechanical gears or levers by transferring the pressure from fluid through a piston to the point of operation. Hydraulic cylinders are at work in both industrial applications (hydraulic presses, cranes, forges, packing machines), and mobile apps (agricultural machines, construction equipment, marine equipment). And, in comparison with pneumatic, mechanical or electric systems, hydraulics could be simpler, stronger, and provides greater power. For example, Price Of Hydraulic Cylinder has about 10 times the power density of an electric motor of similar size. Hydraulic cylinders can be found in a remarkable array of scales to meet a wide range of application needs.
Choosing the right cylinder to have an application is essential to attaining maximum performance and reliability. This means taking into consideration several parameters. Fortunately, a big selection of cylinder types, mounting techniques and “rules of thumb” are for sale to help.
The three most typical cylinder configurations are tie-rod, welded and ram styles. Tie-rod cylinders use high-strength threaded steel tie-rods, typically on the outside the cylinder housing, to offer additional stability. Welded cylinders feature a heavy-duty welded cylinder housing with a barrel welded straight to the end caps, and require no tie rods. Ram cylinders are just the things they sound like-the cylinder pushes straight ahead using extremely high pressure. Ram cylinders are used in heavy-duty applications and typically push loads instead of pull.
For all types of cylinders, the crucial measurements include stroke, bore diameter and rod diameter. Stroke lengths vary from lower than an inch to several feet or more. Bore diameters can range from an inch as much as a lot more than 24 in., and piston rod diameters range from .5 in. to more than 20 in. In reality, however, the choice of stroke, bore and rod dimensions could be limited by environmental or design conditions. For example, space may be too limited for your ideal stroke length. For tie-rod cylinders, increasing the size of the bore means increasing the quantity of tie rods required to retain stability. Improving the diameter in the bore or piston rod is an ideal way to compensate for higher loads, but space considerations might not allow this, in which case multiple cylinders may be needed.
Mounting methods also play a vital role in cylinder performance. Generally, fixed mounts on the centerline in the cylinder are perfect for straight line force transfer and avoiding wear. Common varieties of mounting include:
Flange mounts-Very strong and rigid, but have little tolerance for misalignment. Experts recommend cap end mounts for thrust loads and rod end mounts where major loading puts the piston rod in tension. Side-mounted cylinders-Simple to install and service, however the mounts generate a turning moment because the cylinder applies force to your load, increasing wear and tear. To avert this, specify a stroke a minimum of as long as the bore size for side mount cylinders (heavy loading is likely to make short stroke, large bore cylinders unstable). Side mounts must be well aligned as well as the load supported and guided.
Centerline lug mounts -Absorb forces on the centerline, but require dowel pins to secure the lugs to avoid movement at higher pressures or under shock conditions. Pivot mounts -Absorb force on the cylinder centerline and enable the cylinder change alignment in one plane. Common types include clevises, trunnion mounts and spherical bearings. Since these mounts allow a cylinder to pivot, they must be used in combination with rod-end attachments which also pivot. Clevis mounts may be used in every orientation and are generally recommended for short strokes and small- to medium-bore cylinders.
Operating conditions-Cylinders must match a certain application regarding the level of pressure (psi), force exerted, space requirements imposed by machine design, and the like. But learning the operating requirements is just half the process. Cylinders should also withstand high temperatures, humidity and also salt water for Hydraulic Pump Foot. Wherever temperatures typically rise to more than 300° F, standard Buna-N nitrile rubber seals may fail-choose cylinders with Viton synthetic rubber seals instead. When in doubt, assume operating conditions could be more rugged compared to they appear at first glance.
Fluid type-Most hydraulics use a kind of mineral oil, but applications involving synthetic fluids, like phosphate esters, require Viton seals. Once more, Buna-N seals may not be adequate to handle synthetic fluid hydraulics. Polyurethane is also incompatible with higher water-based fluids such as water glycol.
Seals -This is probably the most vulnerable aspect of Hydraulic Portable Car Lift Jack. Proper seals is able to reduce friction and wear, lengthening service life, whilst the wrong kind of seal can lead to downtime and maintenance headaches.
Cylinder materials -The sort of metal employed for cylinder head, base and bearing can create a significant difference. Most cylinders use SAE 660 bronze for rod bearings and medium-grade carbon steel for heads and bases, which can be adequate for many applications. But stronger materials, such as 65-45-12 ductile iron for rod bearings, can offer a considerable performance rldvub for tough industrial tasks. The sort of piston rod material could be important in wet or high-humidity environments (e.g., marine hydraulics) where17-4PH stainless-steel might be more durable compared to standard case-hardened carbon steel with chrome plating utilized for most piston rods.
Yongxiang Hydraulic Equipment Co., Ltd locates in Yangzhou, CN, and it covers an area of 143,500 square feet. Winning customer trust with innovation, Yongxiang has been aiming to provide customers with safe and reliable hydraulic products, services, on-time delivery, and customer satisfaction while ensuring employee safety, fostering employee relations and driving efficiency improvements.
Jiangsu Yongxiang Hydraulic Equipment Co. Ltd
Factory: Wujian Industrial Park, Jiangdu District, Yangzhou, CN
Office: 3107# No.2 Building, Global Financial Center, Wenchang East Road, Yangzhou, CN
E-mail: [email protected]