Pneumatic Seals

Pneumatic Seals

Since the launch of Hallite's versatile 600 series of seals, there has been a continual research and development program, organised by Hallite and with the co-operation of original equipment manufacturers into the demanding world of pneumatic sealing.

As a result, Hallite are now able to offer a range of seals especially suited to pneumatic applications. The Hallite Type 607, Type 608 piston seals, Type 609 rod seal, Type 661 cushion seal and the Type 851 and Type 853 combined rod / wiper seals are manufactured in Hallite Hythane® and have been specifically designed for use in pneumatic applications.

Hallite Hythane® is a specially developed elastomer, formulated to give optimum properties, particularly wear, elasticity, flexibility and outstanding compression resistance.

Features
•  Ultra long life
•  Ultra low friction
•  Water resistant
•  Wide temperature capability

Other specialist seal designs exist for solving particular problem applications. A wide range of ancillary products are available - Type 506 bearings, acetal bearings, 'O' rings etc...

Should you require any further information or advice on material or application, please contact your local Hallite Seals sales office.

Pneumatic Seals

  • 607 607 Max pressure 16 Bar
    Temp range -45°C to 80°C
    Max speed 1m/sec
    607
    607 Max pressure 16 Bar Temp range -45°C 80°C Max speed 1m/sec

    Design
    The result of many years testing and development, the Hallite 607 piston seal is truly a breakthrough in pneumatics sealing. The Hythane® 181 material and the profile of the dynamic sealing lip combine to offer both ultra low friction - significantly less than that of rubber - and ultra long life.

    The Hallite 607 has been developed to give significant improvements in cylinder performance in low lube air conditions and be used in long and short stroke applications. Hallite’s type 607 may also be used in single acting cylinders with a spring return, as well as the double acting application illustrated.

  • 609 609 Max pressure 16 Bar
    Temp range -45°C to 80°C
    Max speed 1m/sec
    609
    609 Max pressure 16 Bar Temp range -45°C 80°C Max speed 1m/sec

    Design
    The result of many years testing and development, the Hallite 609 rod seal is truly a breakthrough in pneumatic sealing. The Hythane® 181 material and the profile of the dynamic sealing lip combine to offer both ultra low friction - significantly less than that of rubber - and ultra long life.

    The Hallite 609 has been developed to give significant improvements in cylinder performance in low lube air conditions and be used in long and short stroke applications.

  • 661 661 Max pressure 16 Bar
    Temp range -45°C to 80°C
    Max speed 1m/sec
    661
    661 Max pressure 16 Bar Temp range -45°C 80°C Max speed 1m/sec

    Design
    The Hallite 661 has been designed to cushion the stroke of the piston in pneumatic cylinders by acting as a non-return valve.

    Near the end of the cylinder stroke the cushion spear contacts the seal and pushes it against the radial housing wall thereby trapping air and decelerating the piston. When pressure is applied to the system to return the piston, specially designed venting grooves allow pressure to pass over the Hallite 661 to the piston.

    The type 661 seal is manufactured in Hallite’s Hythane 181 high specification polyurethane compound to provide a hard wearing material which is easily installed in the groove.

    Features
    •  Non-return valve action
    •  Easy installation
    •  Hard wearing
    •  Excellent temperature range