Airtac ACA Standard Automatic Compensation Hydraulic Shock Absorber ACA2030-2
Genuine AirTAC hydraulic shock absorber, order code ACA2030-2 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
- CapPlastic cap
- 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 ACA2030-2
Set to speed type 2, the medium range, this 30 mm ACA20 damper takes impacts arriving at up to 2 m/s and stops effective masses up to 780 kg. The self-compensating hydraulic circuit needs no adjustment: resistance builds in proportion to the load, absorbing up to 70 J per cycle and 58,000 J per hour on the M20x1.5 fully threaded body.
The plastic cap gives the hardened stainless steel piston rod an impact-friendly striking face at 210 g of moving weight. AirTAC advises working between 20% and 80% of the 70 J rating, stopping the load about 1 mm before the rod bottoms out using the stop nut, and keeping side loads within 3 degrees. The unit runs from -5 to +70 C.
Airtac ACA Standard Automatic Compensation Hydraulic Shock Absorber ACA2030-2 Technical Specifications
| Order code | ACA2030-2 |
|---|---|
| Product | Hydraulic Shock Absorber |
| Model | ACA2030 (30 mm stroke) |
| Speed range | 2: medium speed, medium load |
| Cap | Plastic cap |
| 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
Pick ACA2030-2 when your impact speed sits between the 4 m/s limit of type 1 and the 1 m/s limit of type 3; if the load rebounds early in the stroke, step down to ACA2030-1, and if it rebounds at the end, step up to ACA2030-3. Stay with the 30 mm stroke while your energy per cycle stays under 70 J: drop to ACA2025-2 for its 65 J rating or move to ACA2040-2 when you need the 80 J and the 1280 kg type 3 mass ceiling. Keep the plastic cap unless impacts are heavy (ACA2030-2F) or the rod must strike the load directly (ACA2030-2N).
Applications
Conveyor end stops
Decelerating boxes or totes arriving at medium pace on accumulation and transfer lines, where the 780 kg effective-mass ceiling at type 2 covers loaded product streams.
Pick-and-place cushioning
Absorbing the deceleration of medium-speed robot or gantry axes, where the 30 mm stroke and self-compensating response handle varying part weights without retuning.
Pneumatic slide stop
Acting as the positive end stop on air cylinders and linear slides; the stop nut positions the strike point 1 mm before bottom-out for long service life.
FAQ
What are the key figures of the ACA2030-2?
Stroke 30 mm, body thread M20x1.5, speed type 2 rated to 2 m/s, energy absorption 70 J per cycle with a duty ceiling of 58,000 J per hour, maximum effective mass 780 kg, weight 210 g, operating temperature -5 to +70 C, and side load limited to 3 degrees. It ships with a plastic cap.
Why choose the plastic cap version instead of F or N?
The plastic cap cushions the strike face for general machine duty. The ACA2030-2F swaps it for a steel cap aimed at heavier impacts, and the ACA2030-2N omits the cap entirely so the hardened stainless rod strikes the load directly. All three share the same 30 mm body and type 2 performance.