T Series Thruster alculation onstants V IMPT VELOITY (in/sec) T Factor 9/16" 3/4" 1-1/16" 1-1/2" 2" SF TF

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1 imba bsorbers bsorber Dimensions Linear Thruster ylinders ore D E F 9/16" (2).75 # /4" (4).88 # /16" (9) 1 # D 1-1/2" (17) 1.25 # (TE) 4.75 (TE) 2" (31) 1.5 1/ (T) 5.75 (T) F E How to Size a bsorber E T (Total energy) equals the sum of E K (Kinetic energy) and E W (Work energy) Example: determine the proper shock absorber for a model T-46 Thruster mounted vertically with an attached load of 15 lbs., operating air pressure of 8 PSI, and a velocity of 2 in/sec., at a cycle rate of 3,6 per hour. P = 8 PSI V = 2 in/sec S = 6 in W U = 15 lbs = 3,6 cycles / hr From the charts for a 3/4" bore "T" series Thruster SF =.41 TF1 =.442 TF2 =.632 TF3 =.63 E K = ((15 lbs + ( (.63 x 6 in))) / 772) x (2 in/sec) 2...E K = 8.3 in-lbs E WV = ((.442 x 8 PSI) + 15 lbs + ( (.63 x 6 in))) x.41...e WV = 21.6 in-lbs E T = E K + E WV = in-lbs... E T = E T x = 15,685 in-lbs/hr hecking specifications chart: both E T and E T are less than maximum. nd per sizing graph for a model T-4: in-lbs total energy at 2 in/sec velocity, use a heavy duty model HS-4 absorbers. shock Selecting the proper shock absorber model is accomplished using the shock absorber graph given for each Thruster bore. The intersection of the total energy per stroke "E T", and velocity at shock absorber contact "V", indicates the proper shock absorber model. E T is calculated by the equation given below using values determined for: P = ir pressure (PSI) V = Velocity at impact (in/sec) S = Stroke of the Thruster (in) W U = Load attached to the Thruster mounting plate (lbs.) = ycles per hour SF = factor TF1 = Thruster factor #1 TF2 = Thruster factor #2 TF3 = Thruster factor #3 Note the Work energy calculation varies with mounting position, E WH Horizontal, or E WV Vertical. E K = ((W U + (TF2 + (TF3 x S))) / 772) x V 2...(Kinetic energy, in-lbs) E WH = TF1 x SF x P...(Work energy, in-lbs) HORIZONTL E WV = ((TF1 x P) + W U + (TF2 + (TF3 x S))) x SF...(Work energy, in-lbs) VERTIL E T = E K + E W...(Total energy per stroke, in-lbs) E T = E T x...(total energy per hour, in-lbs/hr) E T and E T...must not exceed maximum listed in specifications 82

2 T Series Thruster alculation onstants V IMPT VELOITY (in/sec) T Factor 9/16" 3/4" 1-1/16" 1-1/2" 2" SF TF TF TF (E T) Max. in.-lbs per cycle (E T - ) max. in.-lbs. per hour 36, 125, 3, 475, 622, Velocity vs. Load for bsorbers 5/16" - 7/16" ORE LS-17 HS-17 SS E TOTL ENERGY (in-lbs) T 1-1/4" - 1-1/2" ORE 2 imba bsorbers TE Series Thruster alculation onstants TE Factor 9/16" 3/4" 1-1/16" 1-1/2" 2" SF TF TF TF (E T) Max. in.-lbs per cycle (E T- ) max. in.-lbs. per hour 36, 125, 3, 475, 622, 9/16" - 3/4" ORE 7/8" - 1-1/16" ORE Flow ontrols Linear Thrusters Pneu-Turn Rotary ctuators Ultran ylinders bsorbers (Pneumatic ctuators) Pneu Moment Transition Plates Multi-xis onfigurations Position Sensing Switches pplication hecklist 83 For Technical ssistance:

3 imba bsorbers øf bsorber Dimensions For each model, dimensions and engineering specifications are the same for Light, Standard, and Heavy Duty bsorbers. (LS, SS and HS model numbers). Dimensions (in.) bsorber Selection Guide ore Ultran Ultran Slide 5/16" (7) 7/16" (1) 9/16" (2) S-2 3/4" (4) S-4 7/8" (6) 1-1/16" (9) 1-1/4" (12) 1-1/2" (17) N/ S-2 D E F G H I S /8-32 UNEF.12 N/ S /16-28 UNEF S /2-2 UNF S /4-16 UNF S UNF ød G Engineering Specifications bsorber ore S UNF 1,7 67, 1, S-4 S-9 S-9 S-17 S-17 2" (31) S-31 S-31 S-2 S-4, S-9, S-17, S-31 (S) Stroke Inches Ultran Slide and Ultran Rodless ylinders Note: Do not let shock absorbers bottom out. The shock should not be used as a stroke adjuster. stop collar is needed for the shock if stroke adjustment is required. Thread Type H øe S /8-32 UNEF 2 36, S /16-28 UNEF , S /2-2 UNF 19 3, S /4-16 UNF 4 475, øf (E T ) Max. (E T -) Max. In-Lbs. In-Lbs. Per ycle Per Hour (F p ) Max Force Lbs. ød G Nominal oil Spring Force Extension (Lbs.) ompression (Lbs.) øe (F D ) Max. Propelling Force (Lbs.) H I Weight (Oz.)

4 bsorber/stroke djustment (in.) ore D E F bsorber Dimensions 5/16" (7) /8-32 UNEF 7/16" (1) /8-32 UNEF 9/16" (2) /16-28 UNEF 3/4" (4) /16-28 UNEF 7/8" (6) /2-2 UNF 1-1/16" (9) /2-2 UNF 1-1/4" (12) /4-16 UNF 1-1/2" (17) /4-16 UNF 2" (31) UNF Note: Do not let the shock absorbers bottom out. The shock should not be used as a stroke adjuster. stop collar is needed for the shock if stroke adjustment is required. How to Size a bsorber 85 imba bsorbers Selecting the proper shock absorber model is accomplished using the shock absorber graph given for each Ultran bore. The intersection of the total energy per stroke "E T", and velocity at shock absorber contact "V", indicates the proper shock absorber model. E T is calculated by the equation given below using values determined for: P = ir pressure (PSI) V = Velocity at impact (in/sec) W U = Load attached to the Ultran mounting plate (lbs.) = ycles per hour SF = factor UF1 = Ultran factor #1 UF2 = Ultran factor #2 E T (Total energy) equals the sum of E K (Kinetic energy) and E W (Work energy) Note the Work energy calculation varies with mounting position, E WH Horizontal, or E WV Vertical. E K = ((W U + UF2) / 772) x V 2...(Kinetic energy, in-lbs) E WH = UF1 x SF x P...(Work energy, in-lbs) HORIZONTL E WV = ((UF1 x P) + W U + UF2) x SF...(Work energy, in-lbs) VERTIL Example: determine the proper shock absorber for a model Ultran Slide mounted vertically with an attached load of 15 lbs., operating air pressure of 8 PSI, and a velocity of 2 in/sec., at a cycle rate of 3,6 per hour. P = 8 PSI V = 2 in/sec S = 6 in W U = 15 lbs = 3,6 cycles / hr From the charts for a 3/4" bore Ultran Slide SF =.41 UF1 =.442 UF2 = E K = (15 lbs ) / 772) x (2 in/sec) 2...E K = 8.56 in-lbs E WV = ((.442 x 8 PSI) + 15 lbs x.41...e WV = in-lbs E T = E K + E WV = in-lbs... E T = E T x = 17,457 in-lbs/hr hecking specifications chart: both E T and E T are less than maximum. bsorber Stroke djustment nd per sizing graph for a model UGS-4: in-lbs total energy at 2 in/sec velocity, use a heavy duty model HS-4 shock absorbers. D F 1. OF DJUSTMENT D F E For Technical ssistance: Flow ontrols Linear Thrusters Pneu-Turn Rotary ctuators Ultran ylinders bsorbers (Pneumatic ctuators) Pneu Moment Transition Plates Multi-xis onfigurations Position Sensing Switches pplication hecklist

5 minute imba bsorbers Velocity vs. Load for bsorbers 5/16" - 7/16" ORE 9/16" - 3/4" ORE 2 1-1/4" - 1-1/2" ORE 7/8" - 1-1/16" ORE LS SS HS E TOTL ENERGY (in-lbs) *Ultran Maximum Velocity 2 inches per second or cycle rate not to exceed 15 per V IMPT VELOITY (in/sec) T 86

6 imba bsorbers 9.43 ÿ.43 Ø JM NUT bsorber ore.47 Ø.5 3/4-16 UNF-2 Table 3. bsorber Ratings END LOK.56 JM JM NUT (S) Stroke S S HEX JM NUT (NOT INLUDED) Dimensions (in.) 1-1/16" bore Dimensions (in.) 1-1/2" bore 1/2-2 UNF-2 UNF-2 Thread Type 1/2"-2 UNF 3/4"-16 UNF ø US US US US bsorber 1.12 HEX (E ) Max. In-Lb. Per ycle Ultran Slide & Ultran Rodless ylilnders STOP OLLR Note: The Ultran Stroke Length needs increased by the dimension in order to maintain intended stroke length. The overall length increases by the same amount. The dimension indicates maximum amount of stroke adjustment attainable. The Hex Jam Nut is included with the shock absorber ÿ.44 High Load Ultran.75 HEX (E -) Max. In-Lb. Per ycle 88 ImpactVelocity (in/sec) (F ) Max. Force Stop ollar S9 S-9 bsorber djustment Range S17 S djustment Sett ing Normal oil Spring Force (F ) Max. Propelling Extension ompression Force T T P D Weight 5 178, , Ø IMPT VELOITY (in./sec.) bsorber djustment Range END LOK SHOK SETTING High Load Ultran STOP OLLR JM NUT (INLUDED WITH SHOK) SHOK (HS 17) ø US ø1.69 US ø1.12 GRPH 5 Note: The High Load Ultran Slide needs increased by the dimension in order to maintain intended stroke length. The overall length increases by the same amount. The dimension indicates maximum amount of stroke adjustment attainable. ø