Airtac ACE Compact Cylinder ACE12X40
The AirTAC ACE Compact Cylinder ACE12X40 is a genuine double acting ISO 21287 compact air cylinder with a Ø12mm bore and 40mm 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.
- BoreØ12 mm
- Stroke40 mm
- Port sizeM5×0.8
- Acting typeDouble acting
- Rod threadM3×0.5
- 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 ACE12X40
This ACE12X40 is a double acting ISO 21287 compact cylinder, so air both extends and retracts the 6 mm rod. Its 12 mm bore delivers 56.5 N of push force at 0.5 MPa, which is enough for light clamping or pushing tasks in tight spaces. The hard-anodized aluminium body is about 50% shorter than an ISO 15552 profile cylinder, making it a smart fit inside machine guards or compact jigs where every millimeter counts.
Because the stroke is 40 mm, this unit suits short, precise movements rather than long travel. The fixed TPU bumper at both ends absorbs end-of-stroke impact, and the M5x0.8 port keeps plumbing simple. This model has no magnet, so it cannot accept CMSE or DMSE sensors unless you order the optional -S version.
Airtac ACE Compact Cylinder ACE12X40 Technical Specifications
| Model | Airtac ACE Compact Cylinder ACE12X40 |
|---|---|
| Series | ACE compact cylinder |
| Standard | ISO 21287 |
| Bore size | Ø12 mm |
| Stroke | 40 mm |
| Acting type | Double acting |
| Port size | M5×0.8 |
| Rod thread | M3×0.5 |
| 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 50 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 (Ø12mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 57 N | 42 N |
| 0.7 MPa | 79 N | 59 N |
| Max (@1.0 MPa) | 12 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 ACE12X40
| ACE | ISO 21287 compact cylinder (double-acting). |
|---|---|
| 12 | Bore size in mm. |
| ×40 | 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 (double rod, 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 ACE12X40 Is Used
Tight Jig Clamping
Use the ACE12X40 to clamp small plastic parts in a CNC fixture where the short body fits under a guard, providing 56.5 N of hold-down force at 0.5 MPa.
Short-Stroke Positioning
In a packaging line, this cylinder can push a label applicator forward 40 mm to press labels onto small vials, with the fixed TPU bumper preventing harsh stops.
Light Assembly Assist
Mount the ACE12X40 on a benchtop assembly station to gently push a 3 kg component into a housing, relying on the 42.4 N pull force for retraction.
Is the Airtac ACE Compact Cylinder ACE12X40 the Right Cylinder?
When sizing for a 12 mm bore, compare it with the 16 mm bore ACE16X40, which offers 100.5 N push at 0.5 MPa if you need nearly double the force. For lighter duties, the 12 mm bore is the smallest in the ACE family and is ideal for compact fixtures or small part handling. Remember, this cylinder does not hold its position when air pressure is lost, so for a vertical load, add a pilot check valve or rod lock. Mounting options include FA/FB flange, LB foot, CA/CB clevis, and SDB pivot brackets, all compatible with 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 ACE12X40 FAQ
At 0.5 MPa, the push force is 56.5 N and pull is 42.4 N. At 0.7 MPa, push rises to 79.2 N and pull to 59.4 N. The theoretical maximum force is 11.5 kgf at 1.0 MPa. Operating pressure range is 0.15-1.0 MPa (22-145 psi), with a proof pressure of 1.5 MPa (215 psi).
The ACE12X40 follows ISO 21287, giving a body about 50% shorter than an ISO 15552 profile cylinder, ideal for tight spaces. This model has no magnet, so CMSE or DMSE switches cannot be used unless you order the optional -S version, which includes the magnet. The fixed TPU bumper at both ends absorbs impact, but it is not a brake or lock.
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1-Year Warranty
Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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