KASTAS - ROD SEALS

K35 singe acting rod seal consists of PTFE sealing ring and energizer elastomer o-ring. K35 is preffered in many applications as a single rod seal or as tandem while offering good sealing performance and low friction.Advantages• Low friction and free of stick-slip
• Excellent sealing at static and dynamic conditions
• Long service life
• High extrusion resistance
• Works at high speeds and frequencies
• Designed for grooves according to ISO 7425/1Area of Application• Cranes
• Injection moulding machines
• Hydraulic press cylinders
• Forklifts
• Construction machinery
• Servo cylinders
• Hydraulic breakers
• Wind turbines
• Automotive industryMaterial Code Pressure
(max) bar Temperature
(max) °C Sliding Speed
(max)- m/sPTFE
NBR
PU
NBR PT6003
NB7001
PU6001
NB7001 400 -30/+105
-30/+100 15.0
1.0

K31 heavy duty rod seal is designed for working at hydraulic rod applicaitions consisting of special geometry polyurethane seal, elastomer ring that works as an energizer at low pressures and thermoplastic backup ring for superior extrusion resistance.Advantages• Superior static and dynamic sealing effect
• Design providing good sealing performance at svariable pressure levels.
• Improved sealing gap thanks to the back-up ring
• Safely operating with the elastomer o-ring in long duration locking systems
• High wear resistance and compressive strengthArea of Application• Mining industry
• Iron and steel industry
• Scrap metal presses
• Mobile machinery
• Marine hydraulicsMaterial Code Pressure
(max) bar Temperature
(max) °C Sliding Speed
(max)- m/sNBR
PU
POM NB7001
PU9401
PM9901 630 -30/+100 0.5

K38 is a rod seal with an additional lip design, which is ideal for cylinders with small housing design. The groove design of K38 generates a higher preload which is an advantage in lower pressures and long stroke cylinders.Advantages• Good sealing performance at high and low pressures
• Secondary sealing lip provides extra protection against the ingress of dirt particles
• High wear resistance
• Easy installation into closed grooves
• Suitable with small housing dimensionsArea of Application• Mobile machinery
• Industrial cylinders
• Telescopic cylindersMaterial Code Pressure
(max) bar Temperature
(max) °C Sliding Speed
(max)- m/sPU PU9401 400 -35/+100 0.5