Airtac ACA Standard Automatic Compensation Hydraulic Shock Absorber ACA2030-3N
Genuine AirTAC hydraulic shock absorber, order code ACA2030-3N 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
- 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 ACA2030-3N
The ACA2030-3N is the bare-head version of AirTAC's self-compensating ACA absorber: the N suffix means no cap, so the moving load contacts the piston rod directly. The 30 mm stroke and M20x1.5 fully threaded body are unchanged, and the type 3 speed rating places it in the low speed, heavy load band - 70 J per cycle, 58000 J/h, and effective masses up to 1120 kg at impact speeds of 1 m/s or less.
Because the body is self-compensating, resistance adapts to each impact without adjustment. The hardened stainless steel rod is the contact surface here, offering impact and corrosion resistance, and the absorber runs from -5 to +70 C provided side loads stay within 3 degrees.
Airtac ACA Standard Automatic Compensation Hydraulic Shock Absorber ACA2030-3N Technical Specifications
| Order code | ACA2030-3N |
|---|---|
| Product | Hydraulic Shock Absorber |
| Model | ACA2030 (30 mm stroke) |
| Speed range | 3: low speed, heavy 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
Choose the -3N when your machine already has its own striking pad or when a clean rod face is preferred, and compare it against the plastic-capped ACA2030-3 and steel-capped ACA2030-3F, which share identical 30 mm stroke and type 3 figures. The speed suffix is the other decision point: -1 handles fast light impacts up to 4 m/s and -2 medium ones up to 2 m/s, so stay with -3 only when impacts are at or below 1 m/s yet the load is heavy. If bounce occurs at the start of deceleration, AirTAC advises a faster type; bounce at the end confirms this slower choice.
Applications
Heavy cart and cage stops
Where carts already carry rubber bumpers, the uncapped rod meets the pad directly, decelerating heavy slow-moving warehouse traffic without an extra cap in between.
Vertical load arrest
Mounted to catch a descending heavy platen or lift table moving at 1 m/s or slower, the type 3 rating stops up to 1120 kg of effective mass at stroke end.
Custom striking-face setups
The no-cap head lets integrators fit their own contact piece, using the stop nut accessory to set a positive stop 1 mm before the rod bottoms out.
FAQ
What are the key figures of the ACA2030-3N?
30 mm stroke, M20x1.5 body thread, no cap (N option, rod strikes directly), 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, stop nut and flange available as accessories.
Is a missing cap a problem for my application?
No - the N suffix is a standard catalog variant, not an omission. With no cap, the load strikes the hardened stainless steel rod directly, which suits setups with their own striking pad or a custom contact piece. If you would rather protect the rod end, order ACA2030-3 for a plastic cap or ACA2030-3F for a steel cap rated for heavier impacts.