Airtac ACE Compact Cylinder ACE12X40B
The AirTAC ACE Compact Cylinder ACE12X40B 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 ACE12X40B
This AirTAC ACE12X40B is a double acting compact cylinder that extends and retracts its 6 mm rod with air pressure on both strokes. With a 12 mm bore it delivers 56.5 N of push force at 0.5 MPa, which translates to a practical working load of about 34 N or roughly 3.5 kg when you apply a 0.6 safety factor. The hard-anodized aluminium body is about 50% shorter than an ISO 15552 profile cylinder, so it fits into tight machine guarding and compact jigs where a full-length cylinder would not fit.
The male rod thread (B code) lets you bolt accessories directly without a rod-end adapter, and the M5x0.8 port accepts standard fittings for small-bore automation. This unit has no magnet because the -S option was not ordered, so CMSE or DMSE sensors cannot be mounted on it. The fixed TPU bumper at both ends absorbs end-of-stroke impact, but it does not hold a load if air pressure is lost, so use a pilot check valve for position holding.
Airtac ACE Compact Cylinder ACE12X40B Technical Specifications
| Model | Airtac ACE Compact Cylinder ACE12X40B |
|---|---|
| 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 ACE12X40B
| 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 ACE12X40B Is Used
Small Part Ejection
Use the 40 mm stroke to push small plastic components off a vibratory feeder bowl in an assembly line, with 56.5 N enough to clear the part without damaging it.
Fixture Clamping
In a benchtop drill jig, this cylinder can clamp thin aluminum sheets with about 34 N of safe force, holding them steady for drilling while the compact body fits under the worktable.
Label Applicator
Drive a label tamp head on a packaging machine with a 40 mm stroke to press labels onto small boxes, using the male rod thread to attach the tamp pad directly.
Is the Airtac ACE Compact Cylinder ACE12X40B the Right Cylinder?
For a lighter push, consider the ACE16X40 with 100.5 N at 0.5 MPa, while this ACE12X40B suits applications needing only 56.5 N. Since this is a double acting cylinder, it uses air to both extend and retract, so plan for a 5/2 valve. The male rod thread simplifies mounting, but the lack of a magnet means you cannot add position sensors without ordering the -S version.
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 ACE12X40B FAQ
At 0.5 MPa, the push force is 56.5 N and the pull force is 42.4 N. At 0.7 MPa, push is 79.2 N and pull is 59.4 N. The theoretical maximum force at 1.0 MPa is 11.5 kgf. The operating pressure range is 0.15-1.0 MPa (22-145 psi) with a proof pressure of 1.5 MPa (215 psi).
The ACE12X40B follows ISO 21287, a compact standard that makes the body about 50% shorter than an ISO 15552 profile cylinder, saving space in tight fixtures. However, this particular model does not include the optional -S magnet, so CMSE or DMSE reed or solid-state switches cannot be mounted on it. If you need position sensing, order the -S version instead.
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