SD22 hydraulic cylinder

23Y-62B-01000

Shantui bulldozer cylinders

blade cylinder (left)

This is not a vedio

SHANTUI 23Y-89B-01400 Single tooth ripper angle adjusting cylinder (right)

rod chrome thickness : 30 to 100 microns

optimal value is 50 microns.

chrome quality and hardness is critically important , we checked every month.

rod diameter control : if the measure value is out of tolerance by more than 0.02mm, reject.

rod roughness is Ra 0.09-0.16

if more than Ra0.3, reject.

centrol length of this rod , if out of tolerance by more than 1.5mm. reject.

barrel ID roughness is about Ra 0.25, if surface value is more than 0.5, reject.

cushion sleeve ---hardness should be 55-60 HRC.

if lower than 45 HRC, reject

Test before packing :

At least 10 miuntes of test is required for each cylinder.

And the testing pressure can not be lower than working pressure.

During testing, the extension and retraction of the rod should be smooth, the chrome surface of the rod should be inspected for any mark or scratch, which are not acceptable.

Be aware of the piston with thread, tighten torque is important for the safety of the hydraulic cylinder.

always apply required torque value.

Since 1999, QUANZHOU JUNDE MACHINERY CO.,LTD, located in the
port city “Quanzhou” have played a motivated role in design,manufacturing and rebuilding of hydraulic cylinder.
 

Today we are known as a leading manufacturer for construction
equipment hydraulic cylinder solutions.

Over 10 years of steady growth, we boasted of having the highest
market share in China’s excavator cylinder aftermarket spare market.
 

Whilst endorsed by Cat classic part and regularly supply the hydraulic
cylinder from 2010.

Cat classic part provide the cost-effictive solutions of replacement spare part for the users, that is consistent with our company idea that build a perfect balance point between the product
cost and reliability.

Today the factory with the state-of-the-art manufacturing equipment
has been expanded to 215000 square feet, meanwhile being the ISO9001:2008 certified company.

Our diligence passion and sincerity inspire us to maintain strong competitive edge as well as supply high cost-effective product to our customers.

JDF can also customize hydraulic cylinder according to your special requests, like agricultural equipments.

Welcome to write email to me. 

Lisa