Airtac ACA Standard Automatic Compensation Hydraulic Shock Absorber ACA2030-2N
Genuine AirTAC hydraulic shock absorber, order code ACA2030-2N from the ACA20 range. The options this code selects are decoded below; series data follow the official AirTAC catalog.
- ModelACA2030 (30 mm stroke)
- Speed range2: medium speed, medium load
- CapNo cap (N)
- TypeSelf-compensating, speed type 1/2/3
- Body threadM20×1.5
- ACA202020 mm · 60 J/cycle · 50,000 J/h · max. mass 240 / 660 / 960 kg (type 1/2/3) · 175 g
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac ACA Standard Automatic Compensation Hydraulic Shock Absorber ACA2030-2N
The N suffix deletes the cap from this 30 mm, speed type 2 ACA20 body, so the hardened stainless steel piston rod itself meets the load. That suits machines that carry their own striking element, such as a machined platen or a bumper block bolted to the moving carriage, while keeping the medium-speed rating of up to 2 m/s.
Deceleration performance matches the capped siblings: 70 J per cycle and 58,000 J per hour, stopping effective masses up to 780 kg in speed type 2. The self-compensating hydraulic cell needs no regulator, the one-piece M20x1.5 body sheds heat and screws straight into a tapped hole, and the 210 g unit works from -5 to +70 C with side loads held to 3 degrees.
Airtac ACA Standard Automatic Compensation Hydraulic Shock Absorber ACA2030-2N Technical Specifications
| Order code | ACA2030-2N |
|---|---|
| Product | Hydraulic Shock Absorber |
| Model | ACA2030 (30 mm stroke) |
| Speed range | 2: medium speed, medium 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.
How to choose
Order ACA2030-2N when your fixture supplies the strike face and you want no cap to wear out or mark the product; choose ACA2030-2 for a plastic cap or ACA2030-2F for a steel cap on heavier blows. Within the ACA20 family the 30 mm stroke gives 70 J per cycle, one step above the 65 J of ACA2025-2 and below the 80 J of ACA2040-2, and speed type 2 sits between the 4 m/s light-load type 1 and the 1 m/s heavy-load type 3.
Applications
Custom strike plates
Pairing with a bolt-on bumper block or platen on moving carriages, since the uncapped rod end is struck through the machine's own contact element.
Machine frame end stops
Anchoring into a tapped M20x1.5 hole in a frame or bracket to serve as the positive end stop for medium-speed slides and vibratory feeders.
Test rig deceleration
Absorbing drop-test and cycling rigs where the self-compensating response takes varying energy without adjustment, up to 70 J per cycle at medium speed.
FAQ
What are the key figures of the ACA2030-2N?
Stroke 30 mm, body thread M20x1.5, speed type 2 rated to 2 m/s for medium loads, energy absorption 70 J per cycle and 58,000 J per hour, maximum effective mass 780 kg, weight 210 g, temperature range -5 to +70 C, side load 3 degrees or less, and no cap fitted.
Does the missing cap change how the ACA2030-2N performs?
No. The N suffix only removes the cap, leaving the hardened stainless piston rod to strike the load directly; the 70 J per cycle rating, 58,000 J per hour duty limit and 2 m/s speed window all match the plastic-capped ACA2030-2 and the steel-capped ACA2030-2F. Confirm cap availability and dimensions from the datasheet before retrofitting a cap onto a body ordered as N.