Class 6

Class 6 is available for either hydraulic services up to 1500 PSI or for pneumatic services up to 250 PSI. Class 6 pneumatic cylinders have also been engineered to service low pressure hydraulic applications.


Available in: Hydraulic, Pneumatic
  • Improved Cushion Adjustment: Newly designed needle valve is interchangeable with current design and offers improved sealing characteristics.

    Cushion Adjustment Needle: Needle valves and ball check drilling and machining are identical, making location of these functions interchangeable.

    Piston Assembly: U-Cup packings, one piece piston.

    Cushion Sleeves: Precision fitted with predetermined taper to provide gradual deceleration and reduce shock.

    Cylinder Tubing:

    • AIR: Hard coated aluminum, or honed, non-corrosive steel, providing an extremely wear-resistant surface and low friction characteristics.
    • HYDRAULIC: Honed steel tubing standard (H6).

    Piston Rod: High tensile 100,000PSI minimum yield stress proof steel, ground, polished, and flash chrome plated .0003/.0005 to provide a hard long-wearing surface with low friction but not corrosion resistant.

    Tie Rod: Material alloy steel for maximum strength. Multiple tie rods in each corner are furnished on all 16” through 20” diameter cylinders.

    Tube Seal: Two-step pilot recess grooves afford positive controlled squeeze on pressure sealed O-ring, while tubing locates concentrically against end cap.

    Cushion Ball Check: Assures quick starting under full power; pressure acts on full piston area instantaneously.

    Rod Packing: Choice of self-adjusting to pressure, multi-lip split seal or continuous pre-loaded lip seal.

    Packing Gland: Readily removable long bearing type, held in place with socket head cap screws. Rod packing easily replaced without loosening tie rods or dismantling cylinder.

    Rod Wiper: Wipes rod clean and dry. Keeps foreign matter from entering cylinder, extending packing life.

    Rod End Threading: Choice of standard catalog male and female thread types plus standard wrench flats.

    End Caps: (Cylinder Heads) Precision steel blocks.


    Options

    • Cushions
    • Cylinder Port Location
    • Water Cylinders can be engineered
  • Model C

    NFPA STD. MF2
    Flange Mount


    Model CC

    NFPA STD. MF6
    Flange Mount


    Model D

    NFPA STD. MF1
    Flange Mount


    Model DD

    NFPA STD. MF5
    Flange Mount


    Model CJ

    NFPA STD. ME4
    Flange Mount


    Model DG

    NFPA STD. ME3
    Flange Mount


    Model A

    NFPA STD. MS2
    Side and Lug Mount


    Model B

    NFPA STD. MS3
    Side and Lug Mount


    Model S

    NFPA STD. MS4
    Side and Lug Mount


    Model AL

    NFPA STD. MS7
    End Lug Mount


    Model E

    NFPA STD. MP1
    Clevis Mount


    Model HE

    NFPA STD. MP2
    Clevis Mount


    Model E3

    NFPA STD. MP3
    Fixed Eye Mount


    Model EU3

    NFPA STD. MPU3
    Spherical Eye Mount




    Model E4

    NFPA STD. MP4
    Detachable Eye Mount


    Model F

    NFPA STD. MT4
    Trunnion Mount


    Model FB

    NFPA STD. MT2
    Trunnion Mount


    Model FR

    NFPA STD. MT1
    Trunnion Mount


    Model T

    NFPA STD. MX1
    Tie Rod Mount


    Model TB

    NFPA STD. MX2
    Tie Rod Mount


    Model TR

    NFPA STD. MX3
    Tie Rod Mount










  • Adjustable mounting allows switches to be located anywhere within range of the piston travel. Several switches may be mounted to control or initiate any squence function. Used in plant environments where dirt and contamination create difficulties for electromechanical controls.


    Easily mounted in cylinder heads to confirm the position of the piston. The switch senses cushion sleeves position at the end of stroke. Being totally self contained, the switch will not be contaminated.


    No contact design, has both analog and digital outputs available. Feedback sensor is protected from debris and mechanical damage.


  • Rod Seal Kit

    The Rod Seal Kit includes 1 V-Ring Rod Packing, 1 Rod Wiper, and 1 Wave Spring.


    Piston Seal Kit

    The Piston Seal Kit includes 2 Tube O-Rings, 2 Piston U-Cups, 2 Back-Up Washers and 1 Piston O-Ring.


    Packing Glands

    Replacement Packing Glands are available for all models.


  • Class 6 Catalog Section

    Nopak Full Product Line Catalog (Literature: PDF)

  • Have questions about the Class 6? Send us a note and we'll get back to you as soon as possible!