Airtac ACA Standard Automatic Compensation Hydraulic Shock Absorber ACA2025-2F
Genuine AirTAC hydraulic shock absorber, order code ACA2025-2F from the ACA20 range. The options this code selects are decoded below; series data follow the official AirTAC catalog.
- ModelACA2025 (25 mm stroke)
- Speed range2: medium speed, medium 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 ACA2025-2F
The F suffix in ACA2025-2F selects a steel cap for heavier impacts, fitted to the 25 mm stroke, speed type 2 absorber of the AirTAC ACA family. It works the same medium-speed envelope: 65 J per cycle, 54000 J per hour and effective masses up to 720 kg at impact speeds up to 2 m/s.
The steel cap sits on the M20x1.5 fully threaded body, whose one-piece construction takes high pressure and sheds heat well across long duty. Like every ACA absorber it self-compensates, so deceleration tracks the load without adjustment, and the stop nut accessory can act as a positive stop placed 1 mm before the rod bottoms out. The hardened stainless steel piston rod, the -5 to +70 C operating range and the 3 degree side-load limit all apply unchanged.
Airtac ACA Standard Automatic Compensation Hydraulic Shock Absorber ACA2025-2F Technical Specifications
| Order code | ACA2025-2F |
|---|---|
| Product | Hydraulic Shock Absorber |
| Model | ACA2025 (25 mm stroke) |
| Speed range | 2: medium speed, medium 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
The F option is the decision point here: against the plain ACA2025-2 with its plastic cap and the capless ACA2025-2N, this code is the one to order when the striking face meets harder, heavier blows. Within the same steel-cap format, compare ACA2020-2F (60 J, 660 kg), ACA2030-2F (70 J, 780 kg) and ACA2040-2F (80 J, 890 kg) by energy per cycle and mass. Keep speed type 2 only if impacts stay at or below 2 m/s; ACA2025-1F covers faster, lighter hits and ACA2025-3F slower, heavier ones.
Applications
Pallet truck stops
At dock and warehouse pallet stations, the steel cap withstands repeated hard-nose contact from forklifts and pallet trucks while the 25 mm stroke bleeds off up to 65 J per cycle.
Heavy machine slides
On presses, clamping fixtures and machine slides that ram home at medium speed, the F cap takes the harder blows while type 2 damping holds effective masses up to 720 kg.
Case pusher stops
In packaging lines where metal case pushers strike rigidly, the steel-capped face resists denting, and the stop nut turns the stroke end into a positive stop.
FAQ
What figures define the ACA2025-2F?
25 mm stroke with steel cap (F option); 65 J per cycle and 54000 J per hour absorption; effective mass up to 720 kg for speed type 2; impact speeds up to 2 m/s; M20x1.5 body thread; 185 g weight; -5 to +70 C; side load within 3 degrees.
Does the steel cap change the energy rating?
The catalog rates the ACA2025 body at 65 J per cycle and 54000 J per hour regardless of cap; the F cap is the option for heavier impacts within that same rating. Confirm cap dimensions from the datasheet before final sizing.