Hollow Ram Jacks - Plain Ram, Double Acting, Oil Return

Hollow ram jacks double acting are hydraulic cylinders with a hollow plunger that allows push and pull forces. They are used for various applications such as tensioning, testing, lifting, pushing, pulling, bending, or holding. They can also be used with accessories such as threaded adapters, swivel caps, clevis eyes, or spherical saddles to suit different needs.

Hollow ram jacks double acting have some advantages over single acting ones. They have a faster and more precise retraction due to the hydraulic pressure on both sides of the plunger. They also have a longer stroke length and can operate in any position. However, they also require hydraulic fluid and a four-way valve to control the flow direction.

Orione Hydropower is a leading manufacturer and supplier of Hollow Ram Jacks Double Acting in Navi Mumbai, Maharashtra, India. Our high-end designs are made of metal to prevent corrosion and withstand wear. As a trusted manufacturer in Navi Mumbai, we use only the finest quality materials to deliver the best options to our customers. Please browse our website and place your order according to your preferences.

Hydraulic Hand Pumps Steel

Capacity 10 - 150 ton / Stroke 50 - 150 mm / Max. Working Pressure 700 bar

Capacity
(ton)
Capacity
(kN)
Stroke
(mm)
Model Effective area
(cm2)
Oil cap.
(cc)
Closed height
(mm)
Wt. (Approx.)
(kg)
10 103 75 ODH 10-75 14.7 110 195 5.5
10 103 100 ODH 10-100 14.7 147 220 6
20 202 50 ODH 20-50 28.9 144 185 12
20 202 100 ODH 20-100 28.9 289 235 14.5
20 202 150 ODH 20-150 28.9 433 285 17
30 309 50 ODH 30-50 44.2 221 200 13.5
30 309 100 ODH 30-100 44.2 442 250 16
30 309 150 ODH 30-150 44.2 663 300 19
50 528 100 ODH 50-100 75.4 754 260 28
60 641 75 ODH 30-75 91.6 687 245 27.5
60 641 100 ODH 30-100 91.6 916 270 30
60 641 150 ODH 30-150 91.6 1373 320 34.5
100 1093 75 ODH 100-75 156.1 1171 270 53
100 1093 100 ODH 100-100 156.1 1561 295 57
150 1649 150 ODH 150-150 235.6 3534 350 95

Features of Hollow Ram Jacks Double Acting

Hollow ram jacks double acting are hydraulic cylinders with a hollow plunger allowing pull and push forces. They are used for various applications such as construction, lifting, tensioning, and testing. Here are some of the features of hollow ram jacks double acting:

  • They have a high capacity ranging from 10 to 150 tons.
  • They have a long stroke ranging from 50 to 250 mm.
  • They have a maximum working pressure of 700 bar.
  • They have a fast and precise retraction due to the hydraulic force on both sides of the plunger.
  • They have an aluminum or steel body that is durable and corrosion-resistant.
  • They have a hollow plunger that allows for passing cables, rods, or wires through it.
  • They have a spring-loaded safety valve that prevents overpressurization.
  • They have a collar thread and base mounting holes for easy installation and attachment.
  • Applications of Hollow Ram Jacks Double Acting

    Hollow ram jacks are hydraulic cylinders with a hole through the center of the piston and plunger. They are used for applications that require pulling, pushing, tensioning, or clamping forces. Hollow ram jacks can be single-acting or double-acting. Single-acting hollow ram jacks use hydraulic pressure to extend the plunger and rely on a spring or gravity to retract it. Double-acting hollow ram jacks use hydraulic pressure to extend and retract the plunger, allowing for faster and more precise control.

    Double-acting hollow ram jacks have several advantages over single-acting ones. They can provide continuous force in both directions, which is helpful for applications that require push and pull forces. They can also retract faster than single-acting ones, which reduces cycle time and increases productivity. Moreover, they can prevent plunger drift caused by external loads or leaks, which improves accuracy and safety.

    Some of the standard applications of double-acting hollow ram jacks are:

    Pile Load Testing

    Pile load testing is a method of assessing the bearing capacity and settlement behavior of piles under axial loads. Piles are structural elements that transfer loads from buildings or bridges to deeper soil layers or bedrock. Pile load testing involves applying a controlled load to the pile head and measuring its displacement.

    Double-acting hollow ram jacks are often used for pile load testing because they can apply both compression and tension loads to the pile head. The hole in the center of the jack allows a threaded rod or cable to pass through it and connect to the pile head. The jack can then apply a downward or upward force on the rod or line, depending on whether compression or tension testing is required.

    Post-Tensioning

    Post-tensioning is a technique of reinforcing concrete structures by applying prestressing forces to embedded steel tendons. Prestressing forces are applied after the concrete has hardened, hence the name post-tensioning. Post-tensioning improves concrete structures' strength, durability, and performance by reducing cracking, deflection, and shrinkage.

    Double-acting hollow ram jacks are often used for post-tensioning because they can apply tensioning and detensioning forces to the tendons. The hole in the center of the jack allows a tendon to pass through it and connect to an anchor at each end. The jack can then apply a pulling or pushing force on the tendon, depending on whether tensioning or detensioning is required.

    Cable Splicing

    Cable splicing is a process of joining two cables together by welding, soldering, crimping, or other methods. Cable splicing is often done to repair damaged lines, extend existing threads,or connect different types of cables.

    Double-acting hollow ram jacks are often used for cable splicing because they can apply clampings and release forces to the cable ends. The hole in the center of the jack allows a cable to pass through it and connect to a splice device at each end.

    The jack can then apply a squeezing or releasing force on the cable ends, depending on whether clamping or removing is required.

    How to Use Hollow Ram Jacks Double Acting?

    To use hollow ram jacks double acting safely and effectively, you should follow these steps:

    1. Select the appropriate jack size and capacity for your application. The jack should have enough stroke length to complete the task without exceeding its maximum pressure rating.

    2. Connect the jack to a suitable hydraulic pump with high-pressure hoses and fittings. Make sure there are no leaks or damages in the system.

    3. Place the jack on a flat, stable surface that can support its weight and load. Align the center hole of the plunger with the load or accessory. Do not use spacers or extensions that may cause instability or misalignment.

    4. Open the release valve on the pump and extend the plunger by pumping oil into it. Ensure there is enough clearance for the plunger to retract fully when needed.

    5. Close the release valve on the pump and retract the plunger by reversing the oil flow direction with a four-way valve. Monitor the pressure gauge on the pump and do not exceed its maximum limit.

    6. Repeat steps 4 and 5 as needed until you complete your task. Do not overload or overextend the jack, as it may cause damage or injury.

    7. When finished, open the release valve on the pump and remove any load or accessory from the plunger. Disconnect the hoses and fittings from the jack and store them properly.

    Hollow ram jacks double acting are versatile tools that help you with various tasks involving push-pull forces. However, they also require proper selection, installation, operation, and maintenance to ensure safety and efficiency.

    Why Choose Orione Hydropower?

    Hollow ram jacks double acting are versatile and powerful tools that can easily handle various tasks. They are designed to meet the highest standards of quality and safety. If you are looking for hollow ram jacks double acting, you can check out our website to find suitable equipment for your application.

    Orione Hydropower has built a solid customer base by specializing in application solutions, timely delivery of hydraulic products, and sales service of Hydraulic jacks, Hydraulic Systems, Hydraulic Power Pack, and elements for almost all industries such as Machine Tools, Steel Plants, Cement Industries, Process Industries, Constructions, and OEM.

    The organization's primary goal is to provide high-quality, dependable services to industries. The purpose of the product and creating cost-effective solutions that fulfill or surpass our customers' expectations are the focus of our thoughts and activities, not the product itself.

    Orione Hydropower is a leading producer, supplier, exporter, and trader of Hollow Ram Jacks Double Acting in Navi Mumbai, India. This Hollow Ram Jacks Double Acting is available across India. Please quote here if you have this product!

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