Airtac ACE Compact Cylinder ACE25X35SB
The AirTAC Airtac ACE Compact Cylinder ACE25X35SB is a genuine double acting ISO 21287 compact air cylinder with a Ø25mm bore and 35mm 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
- Stroke35 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 ACE25X35SB
This AirTAC ACE25X35SB is a double acting ISO 21287 compact cylinder with a 25 mm bore and 35 mm stroke, delivering 245.4 N push and 206.2 N pull at 0.5 MPa. Its short body saves about 50% of the mounting length of an ISO 15552 profile cylinder, so it fits into tight jigs and guards where a full-length cylinder will not. The male rod thread (B code) and the fitted optional -S magnet for CMSE or DMSE switches make it a ready-to-sense actuator for automated setups.
Built with a hard-anodized aluminium alloy body and an S45C carbon-steel rod with hard-chrome plating, this cylinder uses a fixed TPU bumper at both ends to absorb end-of-stroke energy. For a real workload at 0.5 MPa, plan for about 147 N (roughly 15 kg) of safe vertical lift, which is a practical 2:1 margin over the theoretical rating. The M5x0.8 port and PT thread match standard compact fittings, and the operating pressure range is 0.15-1.0 MPa (22-145 psi) with a speed of 30-500 mm/s.
Airtac ACE Compact Cylinder ACE25X35SB Technical Specifications
| Model | Airtac ACE Compact Cylinder ACE25X35SB |
|---|---|
| Series | ACE compact cylinder |
| Standard | ISO 21287 |
| Bore size | Ø25 mm |
| Stroke | 35 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 ACE25X35SB
| ACE | ISO 21287 compact cylinder (double-acting). |
|---|---|
| 25 | Bore size in mm. |
| ×35 | 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 ACE25X35SB Is Used
Fixture Clamping
Use this ACE25X35SB to clamp small parts in a CNC fixture, where the 245.4 N push at 0.5 MPa holds components securely and the short body fits under a workholding plate.
Part Ejection
Mount this cylinder on a packaging conveyor to eject lightweight cartons or components at 35 mm stroke, with the optional -S magnet triggering a CMSE switch to confirm each cycle.
Guard Door Interlock
In a machine safety guard, this compact actuator moves a locking pin 35 mm to secure access panels, relying on the fixed TPU bumper to soften end stops and the male rod thread for a simple clevis connection.
Is the Airtac ACE Compact Cylinder ACE25X35SB the Right Cylinder?
When sizing this ACE25X35SB, compare it with the ACE20X35 which pushes 157.1 N at 0.5 MPa for lighter duty, or step up to the ACE32X35 with 402.1 N push for heavier loads. The 35 mm stroke suits short-travel applications like clamping or part ejection, and the 25 mm bore provides a good balance of force and compactness. Since this model carries the optional -S magnet, you can mount CMSE or DMSE reed or solid-state switches for position sensing; without the -S code, no magnet is present. For mounting, choose from FA/FB flange, LB foot, CA/CB clevis, CR, SDB pivot, or FTC brackets, all compatible with the ISO 21287 face. Remember, this cylinder does not hold its position when air is lost, so for load holding, add a rod lock or pilot check valve.
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 ACE25X35SB FAQ
At 0.5 MPa, this cylinder provides 245.4 N push and 206.2 N pull. At 0.7 MPa, it delivers 343.6 N push and 288.6 N pull. The theoretical maximum force at 1.0 MPa is 50.1 kgf. These values are based on the official AirTAC datasheet for the 25 mm bore.
The magnet is the optional -S code, and this ACE25X35SB includes it fitted. With the magnet, you can mount CMSE or DMSE reed or solid-state switches to detect the piston position. Without the -S code, no magnet is present, so sensors cannot be used. The cylinder has a fixed TPU bumper at both ends, not an adjustable air cushion, and operates at speeds from 30 to 500 mm/s.
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