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HRO Type Circular Hydraulic Cylinder

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Manufacturer supplier exporter of hydraulic cylinders.

HRO Type Circular Hydraulic Cylinder

The HRO circular hydraulic cylinder is an advanced hydraulic element that provides reliable and efficient power transmission in a variety of industrial applications. With its innovative design, superior performance and rugged construction, this hydraulic cylinder offers precise control, durability and versatility. Whether used in manufacturing, construction or material handling, HRO circular hydraulic cylinders are designed to optimize hydraulic operation and increase overall productivity.

The company has advanced processing equipment, including vertical, horizontal machining center, gantry machining center, high-precision CNC grinding machine, etc., specializing in the production of all kinds of hydraulic Angle cylinder, thin cylinder, pull rod cylinder, engineering cylinder, metallurgical cylinder, non-standard cylinder, custom cylinder, hydraulic system, hydraulic pump station, hydraulic valve, hydraulic machinery and other system hydraulic products. Applicable to a variety of industries. Cost-effective, complete set of products, welcome the national manufacturers to negotiate cooperation.

HRO series round cylinder safe and stable, output, easy maintenance, beautiful appearance, high quality, suitable for all kinds of press.

Hro Circular Cylinder Features:

1) The circular cylinder has the advantages of safety and stability, large output and easy maintenance;
2) Maximum cylinder diameter 350MM;
3) Travel can be 5 meters;
4) Use pressure: 14~21Mpa

HROA Type Circular Hydraulic Cylinder Characteristic Data:

HROA Type Circular Hydraulic Cylinder Structure Diagram:

HRO Type Circular Hydraulic Cylinder Parameter:

(1)HROD Biaxial Type With Adjustable Cap Circular Hydraulic Cylinder

(2)HROB Type Standard B Type Circular Hydraulic Cylinder

(3)HROC Single Trunnion Type Circular Hydraulic Cylinder

(4)HROE Rear Flange Type Circular Hydraulic Cylinder

HRO Type Circular Hydraulic Cylinder External Tooth Type Specification Sheet:

(1)HROB Type Standard B Type Circular Hydraulic Cylinder

(2)HROC Single Trunnion Type Circular Hydraulic Cylinder

(3)HROE Rear Flange Type Circular Hydraulic Cylinder

Large Hydraulic Cylinder Model Description:


HROA — Type: HROA= Oil port in front of flange HROB= Oil port in back of flange HROC=CA type HROD= biaxial type HROE= flange in back

125– Cylinder diameter: Φ125, Φ150, Φ180, Φ200, Φ225, Φ250, Φ280, Φ300

60– Axis ROD standard: Φ60, Φ80, Φ100, Φ120, Φ140, Φ160, Φ180, Φ200

Axis ROD maximum: Φ80, Φ100, Φ120, Φ140, Φ160, Φ200, Φ220, Φ250

100 — Travel: Standard maximum travel 4 meters

Y– Cylinder block fixed type: YP=Y with PIN I=I type joint TW= half moon sleeve + welding sleeve A= adjustable nuts

DM — No mark =DM core wheel type

Large Circular Hydraulic Cylinder Shaft Fittings Size Diagram:

(1)Tw Half Moon Sleeve

(2)Welded Round Plate

How To Remove Hydraulic Cylinder From Chair?

To remove a hydraulic cylinder from a chair, follow these steps:

  1. Prepare the Workspace:
    • Clear the area around the chair to create a safe and unobstructed workspace.
    • Place a protective covering or cloth on the floor to prevent damage to the chair or surrounding surfaces.
  2. Lower the Chair:
    • Use the chair’s adjustment lever or control mechanism to lower it to its lowest position.
    • This step ensures that the cylinder is fully compressed, making removing it easier.
  3. Locate the Cylinder:
    • Identify the hydraulic cylinder on the chair. It is typically located near the chair’s base and connects to the seat or the chair’s mechanism.
  4. Remove the Chair Seat:
    • If the chair seat is detachable, locate the mounting screws or bolts that secure it to the cylinder or chair base.
    • Use the appropriate tool, such as a screwdriver or wrench, to remove the screws or bolts.
    • Lift the seat off the chair, exposing the hydraulic cylinder.
  5. Support the Chair:
    • Since the chair will be unstable without the seat, provide support to prevent it from tipping over.
    • Use a sturdy object, such as a box or a wooden block, to prop up the chair’s remaining structure.
  6. Disconnect the Cylinder:
    • Examine the connection points between the hydraulic cylinder and the chair mechanism or base.
    • Depending on the chair design, you may find mounting brackets, clips, or screws securing the cylinder.
    • Remove any fasteners holding the cylinder in place using the appropriate tools.
    • Once the fasteners are removed, gently pull or wiggle the cylinder to detach it from the chair.
  7. Replace or Dispose of the Cylinder:
    • If you are replacing the hydraulic cylinder, ensure you have a compatible replacement that matches the specifications of the old cylinder.
    • If necessary, consult the chair manufacturer or a professional for assistance in obtaining the correct replacement cylinder.
    • If you are disposing of the cylinder, follow your local regulations and guidelines for proper disposal.
  8. Reassemble the Chair:
    • If you removed the chair seat, reattach it by aligning the screw holes and securing them with the appropriate screws or bolts.
    • Make sure the seat is firmly attached and stable before using the chair again.

Capability & Capacity Of Factory:

(1) Assembly

We have a first-class independent research and development assembly platform. The hydraulic cylinder production workshop has four semi-automatic lifting cylinder assembly lines and one automatic tilt cylinder assembly line, with a designed annual production capacity of 1 million pieces. The special cylinder workshop is equipped with various specifications of a semi-automatic cleaning assembly system with a designed annual production capacity of 200,000 and equipped with famous CNC machining equipment, a machining center, a high-precision cylinder processing special equipment, a robot welding machine, an automatic cleaning machine, automatic cylinder assembly machine, and automatic painting production line. Existing critical equipment of more than 300 sets (sets). The optimal allocation and efficient use of equipment resources ensure the accuracy requirements of products and meet the high-quality needs of products.

(2) Machining

The machining shop is equipped with a customized inclined rail turning center, machining center, high-speed honing machine, welding robot, and other related equipment, which can handle the processing of cylinder tubes with a maximum inner diameter of 400mm and a maximum length of 6 meters.

(3) Welding

(4) Painting & coating

With small and medium-sized cylinder automatic water-based paint coating lines, to achieve automatic robot loading and unloading and automatic spraying, the design capacity of 4000 pieces per shift;
We also have a semi-automatic paint production line for large cylinders powered by a power chain, with 60 cases per shift design capacity.

(5) Testing

We have first-class inspection facilities and test beds to ensure that the performance of the cylinder meets the requirements.



We are one of the best metallurgical hydraulic cylinder manufacturers. We can offer comprehensive metallurgical hydraulic cylinder stock. We also provide corresponding agricultural gearboxes. We have exported our products to clients worldwide and earned a good reputation because of our superior product quality and after-sales service. We welcome customers at home and abroad to contact us to negotiate business, exchange information, and cooperate with us!

Take a Tour of Our VR Factory:

Take a tour of our VR factory with the following

How Does Forklift Hydraulic Cylinder Work?

Hydraulic Cylinder Application:

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