Airtac ACA Standard Automatic Compensation Hydraulic Shock Absorber ACA2025-3F
Genuine AirTAC hydraulic shock absorber, order code ACA2025-3F from the ACA20 range. The options this code selects are decoded below; series data follow the official AirTAC catalog.
- ModelACA2025 (25 mm stroke)
- Speed range3: low speed, heavy load
- CapSteel cap (F)
- 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 ACA2025-3F
Order code ACA2025-3F adds a steel cap to the 25 mm stroke ACA20 self-compensating hydraulic shock absorber in the type 3, low-speed heavy-load range. The steel cap suits heavier impacts than the standard plastic cap, while the underlying unit still delivers up to 65 J per cycle and 54,000 J/h, stopping effective masses up to 1040 kg at impact speeds of 1 m/s or less.
The M20x1.5 fully threaded one-piece body takes high pressure, mounts by simply screwing into a tapped hole and gives off heat readily. Self-compensating internals match resistance to each impact without adjustment, and the hardened stainless steel piston rod withstands the strike. Weighing 185 g, the absorber runs from -5 to +70 C and tolerates side load up to 3 degrees; a stop nut and a flange are the catalog accessories.
Airtac ACA Standard Automatic Compensation Hydraulic Shock Absorber ACA2025-3F Technical Specifications
| Order code | ACA2025-3F |
|---|---|
| Product | Hydraulic Shock Absorber |
| Model | ACA2025 (25 mm stroke) |
| Speed range | 3: low speed, heavy load |
| Cap | Steel cap (F) |
| 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 ACA2025-3F when slow, heavy impacts would batter a plastic cap: the F suffix in the ordering code calls for the steel-capped version, protecting the rod end under repeated heavy duty. For ordinary impacts at the same speed range, the plastic-capped ACA2025-3 is the standard choice, and ACA2025-3N removes the cap so the load lands on the rod itself. Stroke-wise, compare ACA2020-3 (20 mm, 60 J per cycle) and ACA2030-3 (30 mm, 70 J per cycle) if 25 mm at 65 J does not match your energy budget.
Applications
Heavy cart and AGV stops
Steel-capped end stops for slow-moving carts, AGVs or heavy trolleys hitting below 1 m/s, where type 3 ratings handle masses up to 1040 kg.
Palletizer buffering
Buffers the heavy, slow approach stroke of palletizer pushers and lift stations, working inside the recommended 20% to 80% of the 65 J per cycle rating.
Fixture hard stop
With the stop nut fitted, the steel-capped rod end doubles as a positive mechanical stop on heavy machining or welding fixtures.
FAQ
What are the key figures of the ACA2025-3F?
25 mm stroke, M20x1.5 body thread, steel cap, type 3 speed range for impacts up to 1 m/s, 65 J per cycle, 54,000 J/h, maximum effective mass 1040 kg (type 3), weight 185 g, temperature range -5 to +70 C, side load 3 degrees or less.
Is the steel cap the only difference from ACA2025-3?
Yes. The ordering code changes only the cap suffix: F specifies a steel cap for heavier impacts, while the plain ACA2025-3 carries the plastic cap. Absorption, speed range and dimensions stay those of the ACA2025; confirm exact cap geometry from the datasheet.