Airtac ACE Compact Cylinder ACE25X120B
The AirTAC Airtac ACE Compact Cylinder ACE25X120B is a genuine double acting ISO 21287 compact air cylinder with a Ø25mm bore and 120mm stroke, M5×0.8 air ports and a hard-anodized aluminium body. Its short compact envelope saves about 50% of the mounting length of an ISO 15552 profile cylinder.
- BoreØ25 mm
- Stroke120 mm
- Port sizeM5×0.8
- Acting typeDouble acting
- Rod threadM6×1.0
- CushionFixed TPU bumper (both ends)
- 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 ACE Compact Cylinder ACE25X120B
This AirTAC ACE25X120B is a double acting compact cylinder that extends and retracts its 10 mm rod with air pressure on both strokes. It delivers 245.4 N of push force and 206.2 N of pull force at 0.5 MPa, so it suits light automation tasks where a 25 mm bore fits the envelope.
The ISO 21287 body is about 50% shorter than an ISO 15552 profile cylinder, which helps it fit inside tight machine guards and compact jigs. The hard-anodized aluminium body and S45C hard-chrome rod resist wear, while the fixed TPU bumper at each end absorbs impact. For a real workload, plan on roughly 15 kg of usable force at 0.5 MPa, which is about 60% of the rated push, leaving a safety margin for friction and speed.
Airtac ACE Compact Cylinder ACE25X120B Technical Specifications
| Model | Airtac ACE Compact Cylinder ACE25X120B |
|---|---|
| Series | ACE compact cylinder |
| Standard | ISO 21287 |
| Bore size | Ø25 mm |
| Stroke | 120 mm |
| Acting type | Double acting |
| Port size | M5×0.8 |
| Rod thread | M6×1.0 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 500 mm/s |
| Cushion | Fixed TPU bumper (both ends) |
| Max standard stroke | Up to 150 mm |
Specifications follow the official AirTAC ACE-series (ISO 21287) datasheet. Body: hard-anodized aluminium alloy; piston rod: S45C carbon steel with hard-chrome plating. Rod type: female thread (blank) or male thread (B). Thread options: PT (blank) / G. A built-in magnet is OPTIONAL — add the -S code to fit CMSE / DMSE position sensors.
Theoretical Output Force (Ø25mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 245 N | 206 N |
| 0.7 MPa | 344 N | 289 N |
| Max (@1.0 MPa) | 50 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac ACE Compact Cylinder ACE25X120B
| ACE | ISO 21287 compact cylinder (double-acting). |
|---|---|
| 25 | Bore size in mm. |
| ×120 | Stroke length in mm. |
| S | Optional built-in magnet for CMSE / DMSE sensors (omit for no magnet). |
| B | Rod type: B = male thread; blank = female thread. |
ACE-family variants: ACE (double acting), ASE / ATE (single acting push / pull), ACED (double rod), ACEJ (adjustable stroke), TACE / TACED (non-rotating twin-guide yoke). Mounting accessories: FA / FB flange, LB foot, CA / CB clevis, CR, SDB pivot, FTC; plus I and Y knuckles. Thread PT (blank) / G.
Where the Airtac ACE Compact Cylinder ACE25X120B Is Used
Fixture Clamping
Use this 25 mm bore cylinder to clamp small parts in a CNC fixture where the compact body fits between locating pins and the 120 mm stroke clears the loading zone.
Carton Pusher
In a packaging line, this cylinder can push lightweight cartons off a conveyor onto a chute, using its 245.4 N push at 0.5 MPa to move items up to about 15 kg.
Guard Door Actuator
Mount this cylinder on a machine safety guard to slide a small access door open and closed, where the short ISO 21287 body keeps the actuator within the guard frame.
Is the Airtac ACE Compact Cylinder ACE25X120B the Right Cylinder?
When sizing, compare this 25 mm bore with the 20 mm bore that pushes 157.1 N at 0.5 MPa, or step up to the 32 mm bore that pushes 402.1 N at the same pressure. For a 120 mm stroke, this model fits within the 150 mm maximum standard stroke for the 25 mm bore, so it is a standard offering. Since the B code specifies a male rod thread, it mates with rod-end accessories directly. This unit has no magnet, so it cannot trigger CMSE or DMSE sensors; order the -S version if you need position sensing. Mounting options such as FA or FB flanges, LB foot brackets, and CA or CB clevises bolt directly to the ISO 21287 face.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Short stroke fits the compact body
- ✓ Port/thread type (PT / G)
- ✓ Add -S if you need the magnet for sensors
- ✓ Rod type (female / male B) & mount (FA/LB/CA)
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Compact body: keep the stroke short and avoid side load on the rod.
- check Do not dismantle the threaded front/back covers.
- check Keep speed within the rated range; the TPU bumper absorbs stroke-end energy.
- check Installation by qualified personnel per AirTAC docs.
Airtac ACE Compact Cylinder ACE25X120B FAQ
At 0.5 MPa, the push force is 245.4 N and the pull force is 206.2 N. At 0.7 MPa, push is 343.6 N and pull is 288.6 N. The theoretical maximum force is 50.1 kgf at 1.0 MPa. The operating pressure range is 0.15-1.0 MPa (22-145 psi), and the proof pressure is 1.5 MPa (215 psi).
The ACE25X120B follows the ISO 21287 compact standard, which reduces the body length by about 50% compared to an ISO 15552 profile cylinder. This makes it easier to fit into tight spaces like machine guards or gantries. The fixed TPU bumper at both ends absorbs end-of-stroke impact, and the optional -S magnet code is required if you want to use CMSE or DMSE sensors.
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