Shock Absorbers - Parker Hannifin GmbH - #29

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Energy Capacity Shock Absorbers Hydraulic Industrial Shock Absorbers Type: ■ Non-adjustable Series SA - SA 20 Stroke 12.5 mm SA 20x25 Stroke 24.6 mm For smaller effective masses ■ SA 20 S Stroke 12.5 mm SA 20Sx25 Stroke 24.6 mm For intermediate effective masses ■ SA 20 S2 Stroke 12.5 mm SA 20 S2x25 Stroke 24.6 mm For larger effective masses Basic Version with: ■ Integral stop collar ■ 1 mounting nut Type Stroke (mm) Effective Mass (kg) Max. Energy Capacity (Nm) Min. Max. per stroke W3 per hour W4 SA 20 12.5 2.3 25 25 45000 SA 20S 12.5 23 230 25 45000 SA 20S2 12.5 182 910 25 45000 SA 20x25 24.6 2.3 16 50.8 68000 SA 20Sx25 24.6 9 59 50.8 68000 SA 20S2x25 24.6 36 227 50.8 68000 Technical Data Characteristic Unit Comments Impact velocity m/s 0.3 - 4.5 Operating temperature range °C 0 to 65 Installation in any position Force of internal return spring N 6 - 10 Max. deviation of impacting force from centre axis of shock absorber ±3° Weight (mass) kg 0.176 (Type SA20), 0.207 (Type SA20x25) Min. mounting strength required N 50001 Materials Body Steel, black oxid e finish Piston rod Steel, hardened, ground, hard-chrome plated Accessories Steel, black oxide finish or aluminium, anodized Accessories: ■ Soft pad ^ Universal flange 1) based on -3 stroke For product group overview see page 16 + 17 For design and installation notes see from page 4