Rotary rack and pinion actuator

September 6, 2013 – 11:08
Hydraulic Actuators | Ascendant Technologies

Triac pneumatic rack and pinion actuators are designed and manufactured to provide the highest cycle-life on the market. We can accessorize them to accomplish virtually any control requirement. They are available with various mounting dimension configurations and span eleven models for appropriate torque compatibility. Our extensive inventory and engineering capabilities allow us to respond to your needs with flexibility. We pride ourselves on exceeding customer expectations. Contact us for application assistance.

Rotary Rack & Pinion Actuators Feature

  • Double acting and spring return
  • Dual travel stops
  • Torques to 36, 000 in. lbs.
  • DA and SR common end caps
  • ISO 5211 mounting dimensions
  • Wide base for direct mount to many butterfly valves
  • Substantial pinion bearings mean high cycle life
  • Corrosion resistant hard anodized finish
  • Each unit serialized and bar coded
  • Namur accessory mounting configuration
  • Custom Accessory Mounting

Rotary Rack & Pinion Actuators General Techical Data

  • Standard working temperature -20ºF to 175ºF
  • Low temperature and high temperature option
  • Maximum working pressure 150 psig
  • Operating media: clean, dry air, non-corrosive gas or light hydraulic oil
  • Air supply 40 psi - 150 psi
  • Rotation 100º
  • Dual travel stops standard
  • Mounting dimensions
  • Accessories to Namur - VDI/VDE
  • Valve mounting to ISO 5211 (TR20 - 2R1750)
  • Custom configurations available in quantity
  • Permanently lubricated units
  • Rotary Rack & Pinion Actuators Operation

    Double Acting Operation

    CCW
    Air is supplied to Port A forcing the pistons away from each other (toward ends), rotating drive pinion counterclockwise and exhausting air out of Port B.

    CW
    Air is supplied to Port B forcing the pistons toward each other (toward center), rotating drive pinion clockwise and exhausting air out of Port A.

    Spring Return Operation

    CCW
    Air is supplied to Port A forcing the pistons away from each other (toward ends), rotating drive pinion counterclockwise, compressing springs and exhausting air out of Port B.

    FAIL CW
    Air failure (loss of pressure) allows compressed springs to force pistons toward each other (toward center), rotating drive.

    *(Unit is capable of failure in counterclockwise direction by reversing pistons inside of housing.)

    phone 513.247.5465 fax 513.247.5462

    Source: www.a-tcontrols.com

    SMC SMC NCJ2B6-050SR Stainless Steel Air Cylinder, Round Body, Single Acting, Spring Return, Basic Style Mounting, Not Switch Ready, Rubber Cushion, 1/4" Bore OD, 1/2" Stroke, 0.125" Rod OD, 10-32 UNF
    BISS (SMC)
    • Single-acting air (pneumatic) cylinder with one air port and spring-return piston rod return
    • Round body with a single piston rod for use in linear applications
    • Stainless steel body and piston rod for resistance to corrosion and scaling
    • Basic-style mounting for installing on rigid surfaces
    • Rubber cushioning to dampen the sound of the piston striking the end caps

    Thier guns would do even better if

    2006-01-19 04:54:11 by fieraci

    They used the sprinkler valve mod I found (see my previous repsonse). The electric actuator opens much more slowly than the pneumatic modification. More initial dump of full pressure = more muzzle velocity. As if you really wanted 12 year old boys to have more power, but anyway it does not need batteries. BTW: PVC can shatter if overpressurized. I have seen guys cut the legs off denim jeans and use both legs to double sleeve the pressure tank in case of disaster. Nylon cable ties at the ends. A small pressure gauge might be a good idea too.

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