BU Hydraulic Rod Seals
The BU rod seal is a compact seal with an integrated anti-extrusion ring. It is frequently used as a buffer seal within sealing systems such as those utilized in construction machine cylinders. Construction machine cylinders operate in harsh conditions in which pressure peaks of up to 1000 bar frequently occur. The BU rod seal is installed upstream to isolate such loads from the secondary seal. Due to its special shape, the seal (like a return valve) is able to return pressure that may build up between the primary and the secondary seal into the system. A single or tandem arrangement of this product series is possible as well.
• Enhanced sealing performance in non-pressurized conditions.
• Robust seal profile for harshest operating conditions.
• Extreme wear resistance.
• Insensitive to extreme pressure peaks.
• Extremely high extrusion resistance.
• Excellent media resistance in case of suitable compound selection.
• Suitable compounds available for special requirements of the chemical process industry.
• Suitable compounds available for special requirements of the food processing industry.
Scope of application:
Pressure: ≤500 bar
Operating temperature: -35°C to +100°C
Surface speed: 0.5 m/s
Medium: mineral-based hydraulic oils, emulsions
Material: PU93 Shore. Compared with other polyurethane materials currently sold in the market, its main advantages include improved heat resistance, enhanced hydrolysis resistance, and small compression deformation.
Hydraulic rod seal BU 70x85.1x6.1/6.3 PU93+POM KVK up to 500 bar KVK/China
Product data
Ød=70 mm; ØD=85.1 mm; h=6.1 mm; L=6.3 mm
Material: PU93
Application range (the following limit values cannot appear at the same time):
Pressure: ≤ 500 bar
Speed: ≤ 0.5 m/s
Temperature: -35°C ~ +100°C
Media: mineral-based hydraulic oils and emulsions
Manufacturer:
Zhongxingshun Sealing Products Factory
In stock 18 pcs.
Hydraulic rod seal BU 90x105x8.5/9.5 PU93+POM KVK up to 500 bar KVK/China
Product data
Ød=90 mm; ØD=105 mm; h=8.5 mm; L=9.5 mm ; d1=90.5 mm
Material: PU93
Application range (the following limit values cannot appear at the same time):
Pressure: ≤ 500 bar
Speed: ≤ 0.5 m/s
Temperature: -35°C ~ +100°C
Media: mineral-based hydraulic oils and emulsions
Manufacturer:
Zhongxingshun Sealing Products Factory
In stock 18 pcs.
Hydraulic rod seal BU 85x100.5x6.1/6.3 PU93+POM KVK up to 500 bar KVK/China
Product data
Ød=85 mm; ØD=100.5 mm; h=6.1 mm; L=6.3 mm ; d1=85.4 mm
Material: PU93
Application range (the following limit values cannot appear at the same time):
Pressure: ≤ 500 bar
Speed: ≤ 0.5 m/s
Temperature: -35°C ~ +100°C
Media: mineral-based hydraulic oils and emulsions
Manufacturer:
Zhongxingshun Sealing Products Factory
In stock 5 pcs.
Hydraulic rod seal BU 80x95.5x6.1/6.3 PU93+POM KVK up to 500 bar KVK/China
Product data
Ød=80 mm; ØD=95.5 mm; h=6.1 mm; L=6.3 mm ; d1=80.4 mm
Material: PU93
Application range (the following limit values cannot appear at the same time):
Pressure: ≤ 500 bar
Speed: ≤ 0.5 m/s
Temperature: -35°C ~ +100°C
Media: mineral-based hydraulic oils and emulsions
Manufacturer:
Zhongxingshun Sealing Products Factory
In stock 13 pcs.
Hydraulic rod seal BU 80x95x8.5/9.5 PU93+POM KVK up to 500 bar KVK/China
Product data
Ød=80 mm; ØD=95 mm; h=8.5 mm; L=9.5 mm ; d1=80.5 mm
Material: PU93
Application range (the following limit values cannot appear at the same time):
Pressure: ≤ 500 bar
Speed: ≤ 0.5 m/s
Temperature: -35°C ~ +100°C
Media: mineral-based hydraulic oils and emulsions
Manufacturer:
Zhongxingshun Sealing Products Factory
In stock 10 pcs.
Hydraulic rod seal BU 75x90x8.5/9.5 PU93+POM KVK up to 500 bar KVK/China
Product data
Ød=75 mm; ØD=90 mm; h=8.5 mm; L=9.5 mm ; d1=75.5 mm
Material: PU93
Application range (the following limit values cannot appear at the same time):
Pressure: ≤ 500 bar
Speed: ≤ 0.5 m/s
Temperature: -35°C ~ +100°C
Media: mineral-based hydraulic oils and emulsions
Manufacturer:
Zhongxingshun Sealing Products Factory
In stock 8 pcs.
Hydraulic rod seal BU 70x85x8.5/9.5 PU93+POM KVK up to 500 bar KVK/China
Product data
Ød=70 mm; ØD=85 mm; h=8.5 mm; L=9.5 mm ; d1=70.5 mm
Material: PU93
Application range (the following limit values cannot appear at the same time):
Pressure: ≤ 500 bar
Speed: ≤ 0.5 m/s
Temperature: -35°C ~ +100°C
Media: mineral-based hydraulic oils and emulsions
Manufacturer:
Zhongxingshun Sealing Products Factory
In stock 20 pcs.
Hydraulic rod seal BU 63x78.1x6.1/6.3 PU93+POM KVK up to 500 bar KVK/China
Product data
Ød=63 mm; ØD=78.1 mm; h=6.1 mm; L=6.3 mm ; d1=63.4 mm
Material: PU93
Application range (the following limit values cannot appear at the same time):
Pressure: ≤ 500 bar
Speed: ≤ 0.5 m/s
Temperature: -35°C ~ +100°C
Media: mineral-based hydraulic oils and emulsions
Manufacturer:
Zhongxingshun Sealing Products Factory
In stock 18 pcs.
Hydraulic rod seal BU 60x75x8.5/9.5 PU93+POM KVK up to 500 bar KVK/China
Product data
Ød=60 mm; ØD=75 mm; h=8.5 mm; L=9.5 mm ; d1=60.5 mm
Material: PU93
Application range (the following limit values cannot appear at the same time):
Pressure: ≤ 500 bar
Speed: ≤ 0.5 m/s
Temperature: -35°C ~ +100°C
Media: mineral-based hydraulic oils and emulsions
Manufacturer:
Zhongxingshun Sealing Products Factory
In stock 5 pcs.
Hydraulic rod seal BU 55x70x8.5/9.5 PU93+POM KVK up to 500 bar KVK/China
Product data
Ød=55 mm; ØD=70 mm; h=8.5 mm; L=9.5 mm ; d1=55.5 mm
Material: PU93
Application range (the following limit values cannot appear at the same time):
Pressure: ≤ 500 bar
Speed: ≤ 0.5 m/s
Temperature: -35°C ~ +100°C
Media: mineral-based hydraulic oils and emulsions
Manufacturer:
Zhongxingshun Sealing Products Factory
In stock 20 pcs.
