
Genuine AirTAC hydraulic shock absorber, order code ACA2030-1N from the ACA20 range. The options this code selects are decoded below; series data follow the official AirTAC catalog.
The ACA2030-1N is ordered with the N (no cap) option, so the piston rod strikes directly with no cap fitted - the right choice when your machine already provides its own striker button or wear plate at the contact point. Everything else follows the 30 mm, type 1 specification of the AirTAC ACA20 series.
It decelerates fast, light loads at up to 4 m/s with a maximum moving mass of 280 kg, absorbing up to 70 J per cycle and 58000 J per hour through an M20x1.5 fully threaded one-piece body that takes high pressure. The hardened stainless steel rod resists impact and corrosion, and a stop nut plus flange are listed accessories.
| Order code | ACA2030-1N |
|---|---|
| Product | Hydraulic Shock Absorber |
| Model | ACA2030 (30 mm stroke) |
| Speed range | 1: high speed, light load |
| Cap | No cap (N) |
| Type | Self-compensating, speed type 1/2/3 |
|---|---|
| Body thread | M20×1.5 |
| ACA2020 | 20 mm · 60 J/cycle · 50,000 J/h · max. mass 240 / 660 / 960 kg (type 1/2/3) · 175 g |
| ACA2025 | 25 mm · 65 J/cycle · 54,000 J/h · max. mass 260 / 720 / 1040 kg (type 1/2/3) · 185 g |
| ACA2030 | 30 mm · 70 J/cycle · 58,000 J/h · max. mass 280 / 780 / 1120 kg (type 1/2/3) · 210 g |
| ACA2040 | 40 mm · 80 J/cycle · 65,000 J/h · max. mass 320 / 890 / 1280 kg (type 1/2/3) · 225 g |
| Max impact speed | 4 m/s (type 1), 2 m/s (2), 1 m/s (3) |
| Temperature | -5 to +70 °C |
| Side load angle | 3° or less |
| Piston rod | Hardened stainless steel |
| Accessories | Stop nut, flange |
Source: AirTAC Products Catalog 2026A (PDF01-P0779..P0783), ACA/ACJ series specifications, ordering code and usage notes.
Choose -1N over ACA2030-1 (plastic cap) and ACA2030-1F (steel cap) when the cap itself is not wanted - for direct rod contact or when your own hardware takes the wear. Keep in mind that type 1 is the fastest of the three speed types; if your load travels at 2 m/s or less and carries more mass, ACA2030-2 or the slow-heavy ACA2030-3 give a wider tuning window than this high-speed version.
Lets designers present their own hardened striker or bumper straight to the rod, matching the 4 m/s and 280 kg type 1 envelope.
Suits cramped end-of-travel positions where the moving carriage already carries its own contact element at the right height.
Uncovered rod contact gives a clean, repeatable interface for measuring deceleration, with 70 J per cycle and 58000 J per hour available.
Speed type 1 up to 4 m/s on a 30 mm stroke with M20x1.5 thread; maximum moving mass 280 kg; 70 J per cycle and 58000 J per hour; 210 g weight; -5 to +70 C; side load within 3 degrees.
Only the cap is omitted; the self-compensating hydraulics, 30 mm stroke and hardened stainless piston rod are the same. The stop nut can still turn the stroke end into a positive stop - stop the load 1 mm before the rod bottoms out - and a flange is available as an accessory.