Airtac ACA Standard Automatic Compensation Hydraulic Shock Absorber ACA2030-3
Genuine AirTAC hydraulic shock absorber, order code ACA2030-3 from the ACA20 range. The options this code selects are decoded below; series data follow the official AirTAC catalog.
- ModelACA2030 (30 mm stroke)
- Speed range3: low speed, heavy 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 ACA2030-3
The ACA2030-3 is a self-compensating hydraulic shock absorber in AirTAC's ACA series, built on a 30 mm stroke with an M20x1.5 fully threaded body. Its type 3 speed rating targets slow, heavy loads: it absorbs up to 70 J per cycle and 58000 J/h while stopping an effective mass of up to 1120 kg at impact speeds of 1 m/s or less.
This version carries the plastic cap over the rod end. The hardened stainless steel piston rod resists impact and corrosion, the one-piece threaded body sheds heat well, and the unit operates from -5 to +70 C with side loads held within 3 degrees. A stop nut or a flange can be fitted as accessories.
Airtac ACA Standard Automatic Compensation Hydraulic Shock Absorber ACA2030-3 Technical Specifications
| Order code | ACA2030-3 |
|---|---|
| Product | Hydraulic Shock Absorber |
| Model | ACA2030 (30 mm stroke) |
| Speed range | 3: low speed, heavy 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
Within the ACA20 ordering code, the speed suffix decides where this unit belongs: -1 covers fast light loads up to 4 m/s and -2 medium loads up to 2 m/s, while this -3 version is the choice when impacts arrive at 1 m/s or slower but the mass is heavy, up to 1120 kg. If the load rebounds at the end of the stroke, moving to a slower type like this one is AirTAC's remedy; rebound at the start of the stroke calls for a faster sibling such as ACA2030-2 or ACA2030-1. The cap letter also matters: compare the bare ACA2030-3N or the steel-capped ACA2030-3F before ordering.
Applications
Heavy conveyor end stops
A type 3 absorber taking up to 1120 kg effective mass at walking-pace impacts suits the fixed stop where slow, heavy pallets or totes arrive on a line.
Heavy slide deceleration
On a heavily loaded die slide or press feeder moving under 1 m/s, the 70 J/cycle capacity of the 30 mm stroke soaks the stopping energy without retuning.
Position stop with stop nut
Fitting the stop nut accessory turns the stroke end into a positive stop set 1 mm before the rod bottoms out, giving repeatable final positioning.
FAQ
What are the key figures of the ACA2030-3?
30 mm stroke, M20x1.5 body thread, type 3 low speed rating, up to 70 J per cycle and 58000 J/h, effective mass up to 1120 kg, impact speed up to 1 m/s, temperature -5 to +70 C, weight 210 g, plastic cap, stop nut and flange available as accessories.
How should I size and set up this absorber?
Pick it by energy per cycle and effective mass, keeping the absorbed energy between 20% and 80% of the 70 J/cycle maximum as AirTAC recommends. Keep impact speed within the 1 m/s type 3 limit, hold side loads to 3 degrees or less, and use the stop nut so the load stops 1 mm before the rod bottoms out for long life.