Products
Hydraulic Cylinder Wear Rings

Hydraulic Cylinder Wear Rings

The Hydraulic cylinder wear rings are an important mechanical component, which is mainly installed on the piston flange of the hydraulic cylinder to provide protection in the friction pair between the piston and the cylinder wall.
Wear rings are usually made of special materials such as wear-resistant and high-temperature resistant, which have excellent wear and self-lubricating properties, good thermal conductivity and compressive strength, as well as corrosion and oil resistance. They can be used under low oil and oil-free working conditions and water lubrication.
Products Description

 

The Hydraulic cylinder wear rings are an important mechanical component, which is mainly installed on the piston flange of the hydraulic cylinder to provide protection in the friction pair between the piston and the cylinder wall. Wear rings are usually made of special materials such as wear-resistant and high-temperature resistant, which have excellent wear and self-lubricating properties, good thermal conductivity and compressive strength, as well as corrosion and oil resistance. They can be used under low oil and oil-free working conditions and water lubrication.
The main function of Hydraulic cylinder wear rings are to provide guidance and support for the piston and piston rod of the hydraulic cylinder, while absorbing radial loads. During the movement of the hydraulic cylinder, the wear rings can effectively prevent excessive friction between the piston and the cylinder wall caused by hydraulic force from causing wear on the hydraulic cylinder, thereby extending the service life of the hydraulic cylinder. In addition, wear rings can prevent direct metal contact between moving parts of the oil cylinder, such as the piston and cylinder barrel or piston rod and cylinder head, reducing mutual wear and improving the overall smoothness and reliability of operation.
Compared with traditional metal wear rings, modern Hydraulic cylinder wear rings have many advantages. For example, non-metallic wear rings have low production costs, high load-bearing capacity, and can eliminate local stress concentration; It has good wear resistance, long service life, and superior friction performance; It can also absorb and attenuate mechanical vibration, with good wiping effect, and can adsorb small foreign particles; At the same time, the installation and maintenance of wear rings are relatively simple, and the closed groove design makes it easy to install, reducing maintenance costs.

 

Kintowe PFC-2 Hydraulic Cylinder Wear rings are containing homogenously dispersed graphite with solute phenolic resin and high-quality cotton fiber, and finally finished with heat solidifying process under certain pressure and temperature.

 

This plastic material offers advantages such as superior abrasion resistance, self-lubrication, and corrosion resistance. This has translated to reduced maintenance costs, improved reliability, and an overall increase in productivity. They can work under conditions where oil is littler or even with no oil at all.

 

Benefits of using hydraulic cylinder wear rings:

 

◆ Providing longitudinal guidance to the moving metallic components in the cylinder. As the cylinder operates, the piston rod moves back and forth, which can create lateral movements. Wear rings prevent this movement and ensure the piston rod remains in a straight line, which results in smooth and efficient operation.

 

◆ Wear rings also provide radial support to the metallic components in the cylinder, preventing them from flexing or bending under the load. This protection is essential in preventing damage to the cylinder's piston, rod, and other critical components.

 

◆ Protecting the seal components against excessive mechanical radial forces. Without guide components, uneven wear out can occur, leading to premature failure of the seal components and ultimately the hydraulic cylinder's complete failure.

 

◆ Helping maintain the concentric location of moving metallic components while ensuring clearances and radial gaps are correctly maintained. This positioning is essential in achieving optimal performance and preventing damage to the cylinder.

 

Kintowe hydraulic cylinder guide components can ensure proper guidance, protection, and positioning of various metallic and seal components, which results in efficient operation and extended service life of the cylinder.

 

Production process:

 

QQ20231204094225

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Technical Parameters:

 

Part NO.

Material

Color

Density

g/cm³

Tensile Strength

MPa

Ultimate Compressive

Strength

MPa

Bending Strength MPa

Rockwell Hardness HRM

Coefficient of Friction

Temperature

℃

Dry

Oil

PFC-2

Phenolic resin with cotton fabric +graphite

Black

1.2-1.4

≥50

≥300

≥80

≥90

≤0.4

≤0.13

-40~+130

 

Typical Application

 

For hydraulic cylinders (piston & rod)

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Our service and advantage

 

1.We are the experienced factory

2.We can do OEM

3.We can customize according to your needs

4.We can provide free samples

5.We can test the product properties

6.We have different formulas for selection

4

 

Our exhibition

 

PTC, BAUMA, Hannover Messe etc.

5

 

Packing & Delivery

 

12

By Express (FedEx, UPS, DHL, TNT, EMS, etc. )

--- Advantage: Fast (takes about 7 - 10 days in the delivery), door to door

This is especially useful for urgent shipments that need to reach their destination quickly. Though express delivery is a little expensive, it is worth the cost if time is a crucial factor.

8

 

By Air Transportation

--- Advantage: Fast (takes about 8 - 12 days), a little cheaper than Express.

Though it takes a little longer than express delivery, at around 8-12 days, it is still relatively quick. Additionally, air transportation is a little cheaper than express delivery. The only downside is that the receiver has to collect the goods from the airport.

9

 

By Sea (Ocean ) Transportation

--- Advantage: Much cheaper than Express or Air transportation.

Sea transportation is an excellent option for individuals and businesses that need to transport goods across long distances. With its cost savings and global coverage, it's an attractive alternative to other transportation methods.

10

 

Dimensions(mm)

25*20*5.6

68*63*20

100*95*9.7

145*140*20

210*205*9.7

270*265*20

345*340*30

25*20*9.7

70*65*9.7

100*95*15

145*140*25

210*205*15

270*265*25

350*345*25

30*25*5.6

70*65*15

100*95*20

145*140*30

210*205*20

270*265*30

350*345*40

30*25*6.1

70*65*20

100*95*25

145*140*40

210*205*25

275*270*15

350*345*15

30*25*9.7

70*65*25

100*95*30

145*140*50

215*210*15

275*270*20

350*345*20

35*30*9.3

75*70*6.3

105*100*9.7

150*145*9.7

215*210*20

275*270*25

360*355*20

35*30*9.7

75*70*9.7

105*100*15

150*145*15

215*210*25

278*270*40

360*355*25

35*30*15

75*70*15

105*100*20

150*145*20

215*210*30

280*275*20

360*355*30

40*35*5.6

75*70*20

105*100*25

150*145*25

215*210*35

280*275*25

360*352*15

40*35*6.1

75*70*25

110*105*9.7

155*150*15

220*215*9.7

280*275*30

365*360*9.7

40*35*7.9

75*70*30

110*105*15

155*150*20

220*215*15

285*280*15

365*360*25

40*35*9.7

76*70*16

110*105*20

155*150*25

220*215*20

285*280*20

370*365*15

40*35*15

76*70*25

110*105*25

160*155*9.7

220*215*25

285*280*25

375*370*15

41*36*5.6

76*70*30

110*105*30

160*155*15

220*215*40

290*285*25

380*375*30

41*36*9.7

80*75*6.3

115*110*9.7

160*155*20

225*220*15

290*285*30

385*380*15

45*40*5.6

80*75*9.7

115*110*15

160*155*25

225*220*20

295*290*35

385*380*25

45*40*9.7

80*75*15

115*110*20

165*160*9.7

225*220*25

300*292*30

385*380*30

45*40*15

80*75*20

115*110*25

165*160*15

226*220*45

300*295*15

390*385*25

46*40*20

80*75*25

115*110*30

165*160*20

230*225*15

300*295*20

395*390*25

50*45*5.6

85*79*10

120*115*9.7

165*160*25

230*225*20

300*295*25

400*395*20

50*45*9.7

85*79*25

120*115*15

165*160*30

230*225*25

300*295*30

400*395*25

50*45*15

85*80*6.3

120*115*20

170*165*15

230*225*30

305*300*15

400*395*30

50*45*20

85*80*9.7

120*115*25

170*165*20

235*230*15

305*300*20

420*415*30

50*45*25

85*80*15

120*115*30

170*165*25

235*230*20

305*300*25

425*420*25

50*45*30

85*80*18

125*120*9.7

175*170*9.7

235*230*25

305*300*30

425*420*30

50*46*10

85*80*20

125*120*15

175*170*15

235*230*30

310*305*20

435*430*30

55*50*6.1

85*80*25

125*120*20

175*170*20

240*235*15

310*305*25

450*445*25

55*50*9.7

86*80*40

125*120*25

180*175*9.7

240*235*20

315*310*20

450*445*30

55*50*15

90*84*15

125*120*30

180*175*10

240*235*25

315*310*25

460*455*25

55*50*20

90*84*25

130*125*9.7

180*175*20

240*235*30

320*315*15

475*470*30

60*55*9.7

90*85*9.7

130*125*15

185*180*15

245*240*25

320*315*20

480*470*30

60*55*15

90*85*15

130*125*20

185*180*20

245*240*30

320*315*25

480*472*25

60*55*20

90*85*20

130*125*25

185*180*25

250*245*9.7

320*315*30

500*400*40

60*55*25

90*85*25

130*125*30

185*180*30

250*245*15

325*320*30

500*492*35

61*56*9.7

90*85*30

130*125*40

190*185*15

250*245*20

330*325*25

500*495*20

61*56*15

91*85*16

135*130*9.7

190*185*20

250*245*25

330*325*30

500*495*30

63*58*15

91*85*20

135*130*15

190*185*25

250*245*30

335*330*9.7

500*495*35

65*60*5.6

91*85*25

135*130*20

190*185*30

255*250*15

335*330*15

505*500*25

65*60*6.1

91*85*30

135*130*25

195*190*20

255*250*20

335*330*25

505*500*30

65*60*9.7

91*85*40

135*130*30

195*190*30

255*250*25

335*330*30

510*505*35

65*60*15

95*90*6.3

140*135*9.7

200*195*15

260*255*20

335*330*9.7

530*525*15

65*60*20

95*90*9.5

140*135*15

200*195*20

260*255*25

335*330*15

530*525*25

66*60*25

95*90*9.7

140*135*20

200*195*25

260*255*30

335*330*25

540*505*15

66*60*30

95*90*15

140*135*25

200*195*30

265*260*15

335*330*30

 

66*60*50

95*90*20

140*135*30

205*200*15

265*260*20

340*335*25

 

68*63*9.7

95*90*25

145*140*9.7

205*200*25

265*260*25

345*340*20

 

68*63*15

95*90*30

145*140*15

205*200*30

265*260*30

345*340*25

 

 

FAQ:

 

Q: Are you a manufacturer, trading company or a third party?

A: We are the professional manufacturer of hydraulic seals since 1986.

Q: What is your minimum order quantity, can you send me samples?

A: Normally 50pcs each, samples are free of charge.

Q: Which level of quality are your products?

A: RoHs, DNV, Made in Zhejiang, applying the CCS for marine bearings now.

Q: May i know which payment will be accepted by your company?

A: 100% T/T before shipment, 30 days after received the goods, 30% by T/T in advance, 70% by T/T before shipment, or negotiation.

Q: How can I trust your company?

A: We are OEM for SANY, Hengli, Liugong, Lonking etc, yearly output at least 7 million pieces to domestic and foreign markets.

Q: Is your price competitive?

A: We will offer the best competitive factory prices, fast delivery time, high-quality products.

Q: How you arrange shipment?

A: Normally by sea/air/express/train, 7 to 30 days.

Q: What kinds of material you can produce?

A: Phenolic resin composites

Polyester resin composites

Epoxy resin composite

Polyurethane seals

Q: Do you have the products in stock?

A: Only for like SANY, Liugong, Henegli, most should be made according to customer's need.

Q: Would you have a discount if l have a large order?

A: We can negotiate the discount as per the order quantity.
 
Product knowledge:
Installation steps for Hydraulic cylinder wear rings:
Place the wear rings in an appropriate position on the inner wall of the hydraulic cylinder, ensuring that it is flat and tightly fitting with the inner wall.
Use appropriate tools or lubricants to smoothly place the piston or piston rod into the hydraulic cylinder, ensuring a tight fit with the wear ring.
Check the fit between the wear rings and the piston/piston rod to ensure that it is installed correctly and without any jamming.
Usage and Maintenance:
During use, regularly check the wear condition of the wear rings used in the hydraulic cylinder. If severe wear is found, it should be replaced in a timely manner.
Keep the hydraulic cylinder clean and prevent debris from entering the inside of the cylinder to prevent damage to the wear rings.
According to the requirements of the hydraulic system, use appropriate hydraulic oil and replace it regularly to ensure the normal operation of the hydraulic cylinder.
Notes:
When installing and disassembling wear rings for hydraulic cylinders, excessive force or sharp tools should be avoided to avoid damaging the wear rings or the inner wall of the hydraulic cylinder.
Before installing the wear rings, ensure that the inner wall of the hydraulic cylinder and the surface of the piston/piston rod are free of oil stains, rust, and other impurities.
When replacing the wear rings, a wear-resistant ring with the same model and specification as the original wear rings should be selected to ensure its performance and service life.

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