Rod and buffer seals

Seals Product Introduction

**Introduction to SKF Hydraulic Seals: Rod and Buffer Seals for Demanding Industrial Applications**

In hydraulic systems, maintaining optimal performance and reliability depends on the integrity of sealing solutions. SKF, a global leader in precision engineering, offers a comprehensive range of **hydraulic seals**, including specialized **rod seals** and **buffer seals**, designed to withstand extreme pressures, dynamic motion, and harsh operating conditions. These seals play a critical role in preventing fluid leakage, minimizing friction, and extending the service life of hydraulic cylinders and other industrial machinery.

### **Technical Features and Design Excellence**
SKF hydraulic rod and buffer seals are engineered with advanced materials and innovative geometries to deliver superior sealing performance. Key features include:

– **High-Pressure Resistance**: Constructed from durable polyurethane (PU) or thermoplastic materials, SKF rod seals are optimized to handle high-pressure cycles (up to 40 MPa or more) without extrusion or premature wear.
– **Low Friction and Energy Efficiency**: Precision-machined sealing lips reduce friction, ensuring smooth rod movement and improving energy efficiency in hydraulic systems.
– **Enhanced Contamination Resistance**: Integrated wiper designs in buffer seals prevent dirt, moisture, and particulate ingress, protecting critical hydraulic components from damage.
– **Temperature and Chemical Compatibility**: SKF seals perform reliably across a wide temperature range (-30°C to +110°C) and resist degradation from hydraulic fluids, oils, and aggressive media.

### **Performance Advantages for Industrial Applications**
SKF hydraulic seals are trusted in industries where reliability and durability are non-negotiable. Their benefits include:

– **Extended Service Life**: Reduced wear and tear due to optimized material compounds and dynamic sealing profiles.
– **Leakage Prevention**: Tight sealing action maintains system pressure, reducing downtime and maintenance costs.
– **Shock Absorption (Buffer Seals)**: In high-pressure applications, buffer seals act as secondary protection, absorbing pressure spikes and preventing primary seal failure.

### **Typical Applications**
SKF rod and buffer seals are widely used in:

– **Industrial Machinery**: Hydraulic presses, injection molding machines, and construction equipment (e.g., excavators, loaders).
– **Automotive Systems**: Suspension cylinders, braking systems, and heavy-duty truck hydraulics.
– **Precision Equipment**: Aerospace actuators, marine hydraulic systems, and robotic automation.

By combining cutting-edge materials, rigorous testing, and application-specific designs, SKF hydraulic seals ensure **long-term reliability**, **efficiency**, and **cost savings** for demanding industrial environments. Whether in mobile hydraulics or stationary machinery, SKF’s sealing solutions help operators achieve peak performance while minimizing environmental impact through reduced fluid leakage.

For engineers and maintenance professionals seeking high-performance sealing solutions, SKF’s rod and buffer seals represent a proven choice for enhancing hydraulic system longevity and operational efficiency.

MORE +
CLOSE +
Designation Rod diameter Housing groove diameter Housing groove width Primary sealing element Mass
SIL 35X43X6.3
35.0 mm
43.0 mm
6.3 mm
B93
0.003 kg
SIL 105X115X11
105.0 mm
115.0 mm
11.0 mm
B93
0.0177 kg
SIL 35X45X7
35.0 mm
45.0 mm
7.0 mm
B93
0.06 kg
SIL 10X18X6.3
10.0 mm
18.0 mm
6.3 mm
B93
0.0012 kg
SIL 36X51X12.5
36.0 mm
51.0 mm
12.5 mm
B93
0.012 kg
SIL 115X125X15
115.0 mm
125.0 mm
15.0 mm
B93
0.0261 kg
SIL 12X20X6.3
12.0 mm
20.0 mm
6.3 mm
B93
0.0011 kg
SIL 140X150X12.5
140.0 mm
150.0 mm
12.5 mm
B93
0.0265 kg
S1S-25X35X8
25.0 mm
35.0 mm
8.0 mm
ECOPUR
0.0038 kg
S1S-30X40X11
30.0 mm
40.0 mm
11.0 mm
ECOPUR
0.3 kg
S1S-55X70X10
55.0 mm
70.0 mm
10.0 mm
ECOPUR
0.014 kg
S1S-60X73X11
60.0 mm
73.0 mm
11.0 mm
ECOPUR
0.0161 kg
S1S-60X80X13
60.0 mm
80.0 mm
13.0 mm
ECOPUR
0.031 kg
RSB3-4500-AD2
114.3 mm
129.95 mm
6.27 mm
Polytetrafluoroethylene (PTFE 741)
0.0876 kg
S1S-80X100X13
80.0 mm
100.0 mm
13.0 mm
ECOPUR
0.04 kg
S1S-100X120X16
100.0 mm
120.0 mm
16.0 mm
ECOPUR
0.06 kg
S1S-80X95X10
80.0 mm
95.0 mm
10.0 mm
ECOPUR
0.021 kg
S1S-110X125X11
110.0 mm
125.0 mm
11.0 mm
ECOPUR
0.033 kg
S1S-90X110X13
90.0 mm
110.0 mm
13.0 mm
ECOPUR
0.044 kg
S1S-110X130X16
110.0 mm
130.0 mm
16.0 mm
ECOPUR
0.065 kg
S1S-95X110X11
95.0 mm
110.0 mm
11.0 mm
ECOPUR
0.029 kg
S1S-120X135X10
120.0 mm
135.0 mm
10.0 mm
ECOPUR
0.032 kg
S1S-120X140X13
120.0 mm
140.0 mm
13.0 mm
ECOPUR
0.057 kg
S1S-180X200X14
180.0 mm
200.0 mm
14.0 mm
ECOPUR
0.0852 kg