Double Hydraulic Cylinders
Description
Double hydraulic cylinders are devices designed to convert hydraulic power into linear mechanical power. They achieve this by using pressurized hydraulic fluid to extend and retract a piston rod, allowing for controlled movement in both directions. This type of cylinder is equipped with fluid ports at both ends, enabling the hydraulic fluid to be directed onto both sides of the piston.
Working Principle
The working principle of double hydraulic cylinders involves the use of hydraulic fluid to create motion. Hydraulic fluid is pumped into one port to extend the piston and into the opposite port to retract it. This alternating pressure allows for precise control over the movement of the piston rod, making double hydraulic cylinders particularly useful for applications requiring controlled and repeatable linear motion. The ability to exert force in both directions enhances their versatility and efficiency in various mechanical systems.
Applications
Double hydraulic cylinders are employed in a wide range of industries and applications. They are commonly used in heavy-duty and construction equipment such as forklifts, where precise control over lifting and lowering is essential. Additionally, they are found in industrial presses, large industrial shears, and power steering and braking systems in vehicles. Their ability to handle high power and provide reliable motion makes them suitable for demanding environments.
Advantages over other Hydraulic Cylinders
Double hydraulic cylinders offer several advantages over single-acting cylinders. They provide more control over movement by allowing pressurized fluid to act on both sides of the piston, enabling precise positioning and force application. This dual-action capability makes them ideal for applications requiring bidirectional force and movement, unlike single-acting cylinders that rely on external forces for retraction.
Limitations
Despite their advantages, double hydraulic cylinders have some limitations. They require more complex control systems, including multiple fluid ports and valves, which can increase the initial setup cost and complexity. Additionally, hydraulic systems, in general, are prone to leaks, which can be problematic in applications where sanitation is crucial. The presence of more moving parts also means that maintenance and potential repair costs can be higher compared to simpler systems.
Considerations
When considering the use of double hydraulic cylinders, several factors should be taken into account. Initial costs can be higher due to the complexity of the system and the need for additional components such as pumps and fluid reservoirs. Operating expenses may also be elevated due to the potential for fluid leaks and the need for regular maintenance to ensure optimal performance. However, their durability and ability to withstand harsh environments can offset these costs in applications where reliability and power are paramount. Additionally, the accuracy and control offered by double hydraulic cylinders can justify their use in precision applications, despite the higher maintenance and replacement costs.
from Bansbach Easylift®
With the new micro-hydraulic cylinders, high forces can be realized in a compact construction. With the standard piston diameters from 13 – 24mm and a maximum pressure of 200 bar, forces up to 9,000N can be achieved. The stroke will be individually adjusted according to the customer ’s... [See More]
- Cylinder Action: Double
- Operating Pressure: 2901
- Stroke: 1.18 to 9.84
- Cylinder Configuration: Simple
from Certex UK
Double acting, hydraulic return cylinder. Max. working pressure: 720 bar/ 72 Mpa. Acting type: double. Return type: hydraulic. Usable in all positions. Protected against ejection of plunger. Protection against overpressure on return side. Flat saddle. Prevents damage to the plunger and is easy to... [See More]
- Cylinder Action: Double
- Operating Pressure: 10443
- Rated Load/Force: 220462
- Body Material: Steel
from Jergens, Inc.
Jergens Block Heavy Duty Double Acting Cylinders are great for punching, pressing, and assembly operations. Features, Benefits, & Product Specifications: Simple mounting. Compact design. High output forces [See More]
- Cylinder Action: Double
- Rated Load/Force: 8850
- Stroke: 0.5000
- Operating Pressure: 5000
from Compact Automation
Product Description. The Compact ® Round Line Stainless Steel Air Cylinders are manufactured to the highest standards of quality and reliability in a small, durable, and configurable package. Featuring a precision rolled body construction, this line is designed for long life, leak-free, low... [See More]
- Cylinder Action: Single; Double; Reverse-Acting
- Bore Size: 0.3125 to 3
- Operating Pressure: 250
- Operating Temperature: -20 to 400
from Jergens, Inc.
Jergens Double Acting Cylinders can be used for clamping, holding, positioning, staking, punching, or anywhere that a heavy-duty cylinder is needed. If the cylinder is mounted in the fixture (as opposed to using mounting brackets), the fixture should be bored to between 0.0005" and 0.0010" over the... [See More]
- Cylinder Action: Double
- Rated Load/Force: 9300
- Stroke: 1
- Operating Pressure: 3000
from PHD, Inc.
Tom Thumb © Medium Duty Cylinders are available in a wide range of mounting styles and options. All units are of tierod construction and repairable. Available in single or double-acting. Advantages: Wide range of options and sizes makes it fast and easy to select suitable cylinder. [See More]
- Cylinder Action: Double
- Operating Pressure: 20 to 1500
- Stroke: 0.2500 to 18
- Bore Size: 0.7500 to 1.38
from Quality Bearings & Components
Aluminum - Spring Return, Double Acting, Hollow. HYDRAULIC CYLINDERS. BETEX ADAC SERIES. Specs: Capacity: 30-60 tons. Stroke: 50-250 mm. Max. working pressure: 10,000 psi / 700 bar. Features: Half the weight of steel cylinders. Steel piston for protection against load damage. Chrome plated center... [See More]
- Cylinder Action: Double
- Rated Load/Force: 46297 to 72752
- Stroke: 1.97
- Operating Pressure: 10000
from IMI Bimba
Actuators for applications requiring supply pressures up to 3000 PSI. TRD's hydraulic cylinders have a 3000 PSI pressure rating; some NFPA mounts are rated lower for safety. A floating rod bushing (used in other designs) provides trouble free operation and long life for this line of hydraulic... [See More]
- Cylinder Action: Single; Double
- Operating Pressure: 3000
- Stroke: 0.0 to 120
- Bore Size: 1.5 to 8
from Vektek, LLC
No external ports or external plumbing to collect chips. Reduced installation labor. Available in the same popular sizes as our other block cylinders. [See More]
- Cylinder Action: Double
- Operating Pressure: 5000
- Stroke: 1.5
- Body Material: Steel
from Prince Manufacturing Corp.
Honed Tubing. Available in tie-rod cylinder bore sizes from 2 to 5 inches. Stroke lengths from 2 to 24 inches. Integrated Linear Resistive Transducer (LRT) Sensor [See More]
- Cylinder Action: Double
- Operating Pressure: 3000
- Stroke: 2 to 24
- Bore Size: 2 to 5
from Quality Bearings & Components
Double Acting, Spring Return, Hollow HYDRAULIC CYLINDERS. BETEX DAC SERIES. Specs: Capacity: 10-100 tons. Stroke: 153-356 mm. Max. Working Pressure: 10,000 psi / 700 bar. Features: Perfect for construction, shipyards, utilities, mining and equipment maintenance. Hard chromed piston. Ram inside... [See More]
- Cylinder Action: Double
- Rated Load/Force: 9921 to 22046
- Stroke: 10.04
- Operating Pressure: 10000
from IMI Bimba
Actuators for applications requiring supply pressures up to 1500 PSI. Many of the same features and seals used in the 3000 PSI series are included to increase overall performance and life. TRD's floating rod bushing feature (used in our other designs) provides trouble free operation and long life. [See More]
- Cylinder Action: Single; Double
- Operating Pressure: 1500
- Stroke: 0.1250 to 120
- Bore Size: 1.5 to 8
from Vektek, LLC
No special mounting hardware required, just bolt down these easy to use devices. Dual position mounting, either parallel or perpendicular to piston travel on every model. Adjustable force ranging from "negligible" to maximum cylinder capacity, just adjust the input pressure. Advance porting is... [See More]
- Cylinder Action: Double
- Operating Pressure: 5000
- Stroke: 0.5000
- Mounting: Threaded; Dual Position Mounting
from Prince Manufacturing Corp.
3000 PSI Tie-Rod Cylinders. Bore sizes 2" to 5". Stroke sizes 4" to 48". Honed Tubing. Heavy duty, high strength tie rods. RoyalPlate Plus ® plating on rod (except 2") Learn More About Royal Plate. Flexible configurations. Exceptional paint performance-Aircraft quality two-part paint. 3 Year... [See More]
- Cylinder Action: Double
- Operating Pressure: 3000
- Stroke: 4 to 48
- Bore Size: 2 to 5
from Vektek, LLC
No special mounting hardware required, just bolt down these easy to use devices. Dual position mounting, either parallel or perpendicular to piston travel on every model. Adjustable force ranging from minimal to maximum cylinder capacity, just adjust the input pressure. Advance porting is provided... [See More]
- Cylinder Action: Double
- Operating Pressure: 5000
- Stroke: 0.2559 to ?
- Mounting: Threaded; Dual Position Mounting
from Prince Manufacturing Corp.
3000 PSI Maximum Operating Pressure. 3000 PSI Maximum Peak Spike Pressure. Welded Construction. 8" Bore size. Stroke sizes 8" to 64". Skived tubing. Chromed, ground & polished piston rod. Ductile iron piston & thread-in gland. Teflon cap seal & wear ring on piston. Urethane u-cup, metal... [See More]
- Cylinder Action: Double
- Operating Pressure: 3000
- Stroke: 8 to 64
- Bore Size: 8
from Vektek, LLC
Three capacities 20.6 kN, 29.7 kN and 53.2 kN clamp force at 350 bar (35 MPa). Also called "Power Nuts," Hollow rod cylinders will draw or tighten an appropriately sized bolt to clamp or actuate remote mechanisms. Keyhole shaped bodies make maximum use of space, sized to piston diameter with... [See More]
- Cylinder Action: Double
- Mounting: Threaded
- Operating Pressure: 5000
from Prince Manufacturing Corp.
Heavy duty welded construction. 3000 PSI. Bore sizes from 2.5" to 4.5". Stroke sizes 8" to 60". Chromed, ground & polished piston rod. Skived tubing. Ductile iron piston. Thread-in ductile gland. Urethane u-cup, metal encased wiper, teflon cap seal and wear ring. Crosstube end fittings with... [See More]
- Cylinder Action: Double
- Operating Pressure: 3000
- Stroke: 8 to 60
- Bore Size: 2.5 to 4.5
from Vektek, LLC
Easy to use, basic hydraulic cylinders in G1/8 ported designs. Designed for long life in high production applications. Don't gamble with "cheap" cylinders which wear out prematurely. Reduce or eliminate part distortion by providing accurate, repeatable clamping force. Double Acting cylinders assure... [See More]
- Cylinder Action: Double
- Mounting: Threaded
- Operating Pressure: 5000
from Prince Manufacturing Corp.
Heavy duty welded construction. 3000 PSI. Bore sizes 5" to 6". Stroke sizes 8" to 60". Externally threaded gland cap. Chromed, ground & polished piston rod. Skived tubing. Ductile iron piston. Urethane u-cup, metal encased wiper, crown seal and wear ring. Crosstube end fittings with grease zerks [See More]
- Cylinder Action: Double
- Operating Pressure: 3000
- Stroke: 8 to 60
- Bore Size: 5 to 6
from Vektek, LLC
Three capacities from 4,600 lb. to 11,700 lb. clamp force at rated pressure. Also called "Power Nuts," Hollow cylinders will draw or tighten an appropriately sized bolt to clamp or actuate remote mechanisms. Keyhole shaped bodies make maximum use of space, sized to piston diameter with additional... [See More]
- Cylinder Action: Double
- Mounting: Threaded
- Operating Pressure: 5000
from Prince Manufacturing Corp.
2500 PSI medium duty tie-rod cylinders. Bore sizes 2" to 5". Stroke sizes 4" to 10". Honed Tubing. Chromed, ground & polished piston rod. Ductile iron piston, butt, gland & clevis. Urethane u-cup & wiper in gland. Pins, clips & cotters included. Side ports available on request at no... [See More]
- Cylinder Action: Double
- Operating Pressure: 2500 to 3000
- Stroke: 4 to 10
- Bore Size: 2 to 5
from Vektek, LLC
Available in pull capacities of 470 lbs, 1400 lbs, 3100 lbs and 5600 lbs. Single acting plunger is spring extended, hydraulically retracted. Also available in a straight line guided model, order as a Swing Clamp. Special concentric design model available to replace competitive products that fail. [See More]
- Cylinder Action: Double
- Mounting: Threaded
- Operating Pressure: 5000
from Prince Manufacturing Corp.
Heavy duty tie-rod construction. Induction hardened piston rods plated with RoyalPlate Plus. DU bushing. #8 S.A.E. (3/4-16 ORB) ports. For use with 1" pins. Pins, clips & cotters included [See More]
- Cylinder Action: Double
- Operating Pressure: 3000
- Stroke: 8 to 16
- Bore Size: 2.5 to 5
from Vektek, LLC
Our tapered top flange is designed to keep chips and coolants away from the internal working cylinder parts. Bolt into place and plumb, or to eliminate the external plumbing, follow the easy-to-make manifold pattern. Use standard SAE fittings to plumb. Single piece Body and mounting give a rigid... [See More]
- Cylinder Action: Double
- Mounting: Threaded
- Operating Pressure: 5000
from Prince Manufacturing Corp.
2500 PSI. Universal Mountings. Bore sizes 2.5" to 4". Stroke sizes 8" to 60". Honed tubing. Welded construction. Chromed, ground & polished piston rod. Ductile iron piston & gland. Crosstube end fittings with grease zerks. Urethane u-cup & urethane wiper in gland. O-ring with backup... [See More]
- Cylinder Action: Double
- Operating Pressure: 2500
- Stroke: 8 to 60
- Bore Size: 2.5 to 4
from Vektek, LLC
Easy to use, basic hydraulic cylinders in SAE 4 ported designs. Designed for long life in high production applications. Don't gamble with "cheap" cylinders which wear out prematurely. Reduce or eliminate part distortion by providing accurate, repeatable clamping force. Double Acting cylinders assure... [See More]
- Cylinder Action: Double
- Mounting: Threaded
- Operating Pressure: 5000
from Prince Manufacturing Corp.
3000 PSI - All purpose line. Bore sizes 1.5" to 4". Skived/honed tubing. Heavy duty welded construction. Chromed, ground & polished piston rod. Ductile iron piston & gland. Ductile clevis & cast steel base end. Urethane u-cup & urethane wiper in gland, crown seal on piston. Square... [See More]
- Cylinder Action: Double
- Bore Size: 1.5 to 4
- Operating Pressure: 3000
- Shaft Diameter: 0.7500 to 1.75
from Prince Manufacturing Corp.
Steel externally threaded gland caps. Urethane wiper in gland cap. Homogenous alternating hytrel and nylon vee sets. Glass filled nylon gland bearing rings. Glass filled nylon piston bearing rings. One piece threaded construction pistons. Interlocking step-cut cast iron piston rings. Carbon steel,... [See More]
- Cylinder Action: Double
- Operating Pressure: 1000 to 3000
- Stroke: 55 to 225
- Bore Size: 2.5 to 9.75
from Prince Manufacturing Corp.
3000 PSI Working Pressure. 3 ” Bore x 10 ” Stroke. Double Acting. 1/2 ” NPTF Ports. 1 3/8 ” Hard Chrome Plated Rod. 20 7/8 ” Closed Length (Pin Center to Pin Center). Swivel End Fittings At Both Ends For 1 ” Diameter Pins [See More]
- Cylinder Action: Double
- Operating Pressure: 3000
- Stroke: 10
- Bore Size: 3
from Prince Manufacturing Corp.
3000 PSI. 37 ° JIC Male Ports. Bore sizes 1.5" to 2.75". Stroke sizes 4" to 36". Honed tubing. Chromed, ground & polished rod. Ductile iron piston & gland. Optional end fittings available. Urethane u-cup and wiper. Crown seal standard, "T" seal optional. Wear ring on piston. Thread in... [See More]
- Cylinder Action: Double
- Operating Pressure: 3000
- Stroke: 4 to 36
- Bore Size: 1.5 to 2.75