Piston Seal Turning Seals

We focus on the diversified needs in the field of piston seals and provide high-performance solutions covering all scenarios of hydraulics and pneumatics. Our product line is divided into single-acting and double-acting as the core, combining material innovation and structural optimization to meet the sealing challenges from conventional industry to extreme working conditions:

1. Highlights of piston seal turning seals series:

High pressure and anti-extrusion: RCK102/102R/104 series are designed for high pressure, and the support structure is strengthened to adapt to large gaps and narrow grooves. RCK109H/120/122 and other combination seals integrate guide rings and elastomers to break through the 35MPa+ high pressure limit, especially suitable for mining and heavy machinery.

Dynamic adaptability: RCK108/125/138 uses tetrafluoroethylene material to achieve stable sealing from extremely low speed to high speed (0.01~5m/s), and the low friction characteristics are suitable for walking hydraulics and precision injection molding equipment.

Extreme environment tolerance: RCK119/139 is equipped with Mander spring and PTFE material, which is corrosion-resistant and dry-wear-resistant. The wide temperature range of -40℃~200℃ covers chemical, pharmaceutical high-temperature reactors and food aseptic production lines.

2. Industry customized design:

Maintenance and modification: RCK116/216 simplifies the installation process and adapts to the needs of old cylinder repair and rapid replacement of food filling equipment.

Dual medium isolation: RCK144/145 has an original double lip structure, which can seal oil/water or gas/liquid mixed media at the same time, suitable for complex working conditions.

Short stroke optimization: RCK103/143 enhances the embedding stability through the O-ring preload to avoid the risk of leakage in short-stroke hydraulic cylinders.

3. Core technology advantages:

Material science: The polyurethane lip (RCK205) oil storage design extends the life of lubrication-free pneumatics, and tetrafluoroethylene (RCK108) takes into account both wear resistance and chemical resistance.

Structural innovation: back-to-back guide rings (RCK101), support ring anti-twist (RCK120) and other designs ensure the durability of seals under vibration and eccentric loads.

We are committed to providing "seal-guide-wear-resistant" integrated solutions for 20+ industries such as mining machinery, injection molding equipment, and medical devices, balancing cost and performance with standardized modules and customized services, helping customers reduce maintenance costs and improve equipment reliability.

Product features and applications:

Piston seal turning seals are suitable for hydraulic cylinders and cylinders, standard hydraulic cylinders and walking hydraulic machinery. The main applications include construction machinery, agricultural machinery, cranes, and standard cylinders.

When used in the chemical industry, it is generally used for fast cylinders and positioning machinery. It can also be used in the food industry, the pharmaceutical industry, and accumulators.

Advantages

Piston seal turning seals are embedded in the groove stably, with good dynamic and static sealing performance, no need for additional guide rings, low friction, no hydraulic creep phenomenon, high wear resistance, good anti-extrusion performance, good thermal conductivity, wide applicable temperature range, and strong residual oil return ability under dynamic conditions.

RCK101
Order size
ΦD......Outer diameter
Φd......Inner diameter
L......Groove width

Ordering Example

Model: RCK101

Groove size: 100x84x10

Material: RC-PU-H

Seal Type: RCK101, RCK102, RCK103, RCK104, RCK105, RCK205, RCK106, RCK107, RCK108, RCK118, RCK127
Main application: Suitable for hydraulic and pneumatic cylinders
Advantages: It is stable when embedded in the groove, has excellent dynamic and static sealing performance, is applicable to a wide temperature range, and has strong residual oil return ability under dynamic conditions.
Material: Polyurethane, rubber

RCK108
Order size
ΦD......Outer diameter
Φd......Inner diameter
L......Groove width

Ordering Example

Model: RCK108

Groove size: 100x84.5x6.3

Material: PTFE3+NBR

Seal Type: RCK108, RCK125, RCK140, RCK238, RCK138
Main application: Standard hydraulic cylinders and mobile hydraulic machinery
Advantages: Low friction, no hydraulic creep, high wear resistance, good anti-extrusion performance, good thermal conductivity, stable embedding groove, wide temperature range.
Material: Tetrafluoroethylene + nitrile rubber or fluorine rubber, ultra-high hardness polyurethane + nitrile rubber

RCK109N
Order size
ΦD......Outer diameter
Φd......Inner diameter
Φd1......Inner diameter
L......Groove width
L1......Groove width

Ordering Example

Model: RCK109N

Groove size: 100x80x95x25/36

Material: RC-PU-H+NBR+POM

Seal Type: RCK109, RCK117
Main application: Construction machinery, agricultural machinery, cranes, standard cylinders
Advantages: Excellent static and dynamic sealing, no need for additional guide rings, anti-extrusion, anti-distortion structure, suitable for working conditions with rapid pressure changes.
Material: Polyurethane, rubber, polyurethane, tetrafluoroethylene

RCK119
Order size
ΦD......Outer diameter
Φd......Inner diameter
L......Groove width

Ordering Example

Model: RCK119

Groove size: 100x90.6x7.1

Material: PTFE4 + V

Seal Type: RCK119
Main application: Chemical industry, fast cylinders and positioning machinery, food industry, pharmaceutical industry, accumulators.
Advantages: Resistant to high temperatures and various chemical media, low friction coefficient, no creep, good dry friction characteristics, low static and dynamic friction values.
Material: PTFE+leaf spring