Datong Hydraulic
  • Home
  • About
  • Products
    • Construction Vehicle Hydraulic Cylinder
    • Hydraulic Cylinder
    • Custom Hydraulic Cylinder
    • High-Pressure Hydraulic Cylinder
    • Honed Tube
    • Cold Drawn Seamless Tube
    • Ready to Honed Tube
    • Chrome Plated Bar
    • Chrome Plated Hollow Bar
    • Induction Hardened Chrome Rod
    • Stainless Steel Cylinder Barrel
    • 4140 Hydraulic Cylinder Barrel
    • 4140 Hard Chrome Plated Rod
    • 4140 Steel Round Bar
    • 34CrMo/34CrMo4 Seamless Steel Tube
    • Hydraulic Oil Pipe
    • Cutting Steel Plate
  • Referance
  • Contact us
2021-07-07 作者:Datong Hydraulic

How to measure a hydraulic cylinder replacement?

How to measure a hydraulic cylinder replacement?
2021-07-07 作者:Datong Hydraulic

In order to measure and decide which hydraulic cylinder you need, first of all you would have to visually determine the type of hydraulic cylinder you try to replace. Here are the the main three types of hydraulic cylinders:

    1. Piston rod cylinder – has piston inside, can be single and double acting (ex. Clevis cylinder)
    2. Plunger cylinder – mostly is a single acting cylinder (ex. Snow plow cylinder)
    3. Telescopic cylinder – has multiple stages, can be single and double acting

Main hydraulic cylinder attributes are as follows:

Bore diameter

Rod diameter

Retracted length

Extended length

Stroke

Mounting ends

Hose ports

Working pressure

Here is a detailed guide on how to properly take measurements of any plunger or piston rod hydraulic cylinder.

STEP 1:

Piston diameter or inside barrel diameter is the main dimension of the hydraulic cylinder and known in the hydraulic industry as “BORE”. Therefore it has to be measured first. If your cylinder is taken apart, simply measure either inside diameter of the barrel (cylinder tubing) or measure actual piston diameter across.

STEP2:

The next step is to determine rod diameter. Rod of the hydraulic cylinder is a round chrome plated steel bar that performs reciprocating motion. As commonly described by our clients, it’s a shiny part that comes out from the cylinder. Caliper can easily take care of rod measurement. Simply measure rod diameter (thickness) with a caliper. Rod is one of the most significant parts in the hydraulic cylinder because main force during operation applies on the rod. Proper analysis of rod size and specifications will prevent bend rod situation.

STEP 3:

Next thing to do is to measure the retracted length of the cylinder. Retracted length is the distance between centers of cylinder mounting pins (pin holes) when the hydraulic cylinder is completely retracted inside (closed). Retracted length can be measured with any standard tape measure. Without this measurement, the cylinder will not be installed and operated properly on machinery.

STEP 4:

Extended length should be defined next. Extended length is exactly the same as retracted length described in step 3, with the only difference that hydraulic cylinder has to be fully extended (open) when measured. Just like with retracted length, use tape measure. It is a fairly simple procedure unless your piece of equipment is down and the hydraulic cylinder is not functional. In a situation like this, you would have to take the cylinder off the machinery and extend it manually.

STEP 5:

With both above lengths on hand, we can calculate the stroke of the hydraulic cylinder. Stroke is a travel distance and calculated simply by subtracting one from another. Stroke = extended length – retracted length. Yes,it’s that simple.

上一篇Hydraulic Cylinder Barrel Affect Equipment Life下一篇 How to deal with the scratch on the surface of hydraulic cylinder barrel

最近的文章

The Benefits Of Hard Chrome Plating2023-01-05
What is the difference between case hardening and induction hardening?2022-12-27
How does the single acting telescopic cylinder work2022-12-21

分类目录

  • 4140 42CRMO4 SCM440 34CRMO Materials
  • Chrome Plated/Induction Hardened Rod
  • Cylinder Design And Repair
  • Honed Tube Related
  • others

Why Datong

We sincerely welcome friends from all over the world contact us to establish mutually beneficial business relationships

Get Started Now!

Contact

DATONG HOIDINGS CO.,LIMITED 
Shanghai Foreign Trade Enterprises Pudong Co., Ltd. Add: No.258-268, Zhaojiabang Road,Shanghai,China
+86 13916761557
+86 13296046260
andy@datong-hydraulic.comwww.cylinder-rod.com

News

The Benefits Of Hard Chrome Plating2023-01-05
What is the difference between case hardening and induction hardening?2022-12-27
How does the single acting telescopic cylinder work2022-12-21
Rife Wordpress Theme. Proudly Built By Apollo13

Hi friend,

This website also contains a lot of product knowledge about hydraulic cylinders, if you want to know more, please refer to the following categories. If you need some help, we are ready…

categories

  • 4140 42CRMO4 SCM440 34CRMO Materials
  • Chrome Plated/Induction Hardened Rod
  • Cylinder Design And Repair
  • Honed Tube Related
  • others