Airtac ACEJ12 Adjustable Compact Cylinder ACEJ16X40-10S
The AirTAC Airtac ACEJ12 Adjustable Compact Cylinder ACEJ16X40-10S is a genuine double acting, adjustable stroke ISO 21287 compact air cylinder with a Ø16mm 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.
- BoreØ16 mm
- Stroke40 mm
- Port sizeM5×0.8
- Acting typeDouble acting, adjustable stroke
- Rod threadM4×0.7
- 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 ACEJ12 Adjustable Compact Cylinder ACEJ16X40-10S
A double acting ISO 21287 compact cylinder, the ACEJ16X40-10S pairs a 16 mm bore with a 40 mm stroke that an external stop screw trims by up to 10 mm, giving a usable extend range of 30-40 mm on site. At 0.5 MPa it pushes 100.5 N and pulls 75.4 N, rising to 140.7 N at 0.7 MPa. Because the short body saves about 50% of the mounting length of an ISO 15552 profile cylinder, it slots into slim fixtures, pick stations and guarding where a full-length body simply has no room.
In practice that 100.5 N push means roughly 60 N of dependable working force at 0.5 MPa, enough to lift about 5 kg vertically with a 2:1 margin - handy when matching small part weights like connector housings or sensor brackets. The S code on this model means the magnet is fitted, so CMSE / DMSE reed or solid-state switches mount directly in the body slots to report end positions. A fixed TPU bumper at each end absorbs stroke-end shock, and the hard-anodized aluminium body with an S45C hard-chrome plated 8 mm rod stands up to continuous cycling.
Airtac ACEJ12 Adjustable Compact Cylinder ACEJ16X40-10S Technical Specifications
| Model | Airtac ACEJ12 Adjustable Compact Cylinder ACEJ16X40-10S |
|---|---|
| Series | ACEJ compact cylinder |
| Standard | ISO 21287 |
| Bore size | Ø16 mm |
| Stroke | 40 mm |
| Acting type | Double acting, adjustable stroke |
| Port size | M5×0.8 |
| Rod thread | M4×0.7 |
| 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 75 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 (Ø16mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 101 N | 75 N |
| 0.7 MPa | 141 N | 106 N |
| Max (@1.0 MPa) | 21 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac ACEJ12 Adjustable Compact Cylinder ACEJ16X40-10S
| ACEJ | ISO 21287 compact cylinder (adjustable-stroke). |
|---|---|
| 16 | Bore size in mm. |
| ×40 | Stroke length in mm. |
| -10 | Adjustable stroke window (mm the extend stroke can be shortened on site). |
| 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 ACEJ12 Adjustable Compact Cylinder ACEJ16X40-10S Is Used
PCB push-off station
Ejects finished circuit boards from a test nest with 100.5 N at 0.5 MPa, while the fitted magnet and a CMSE switch confirm the 30-40 mm trimmed extend position each cycle.
Blister carton side pusher
On a small pharmaceutical packaging line, the 10 mm adjust window lets technicians dial the 40 mm stroke down to 30 mm for shallow carton sizes without changing the cylinder.
Sample vial indexing
Advances lab sample trays one station at a time; the compact body saves about 50% of the mounting length of an ISO 15552 profile cylinder inside the tight analyzer frame.
Is the Airtac ACEJ12 Adjustable Compact Cylinder ACEJ16X40-10S the Right Cylinder?
At 16 mm bore you sit in the light-force band: 100.5 N push at 0.5 MPa. If your load needs more, step up to the 20 mm bore (157.1 N push at 0.5 MPa); if less is fine, the 12 mm bore delivers 56.5 N. The 10 mm adjust window shortens the extend stroke only - it never lengthens it past 40 mm - and it is a mechanical end stop, not a mid-stroke lock, so the rod still drifts if air is lost. FA flange or LB foot mounts bolt to the ISO 21287 face, and the fitted -S magnet lets you add CMSE / DMSE switches wherever position feedback is needed. Runs on air filtered to 40 um at 0.15-1.0 MPa (22-145 psi), 30-500 mm/s.
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 ACEJ12 Adjustable Compact Cylinder ACEJ16X40-10S FAQ
At 0.5 MPa it pushes 100.5 N and pulls 75.4 N; at 0.7 MPa, 140.7 N push and 105.6 N pull; theoretical maximum is 20.5 kgf at 1.0 MPa. The -10 code gives a 10 mm adjustment window: an external stop screw shortens the 40 mm extend stroke to any length from 30 to 40 mm. It is a mechanical end stop only - on air loss the piston still drifts, so do not rely on it to hold a load. Operating range is 0.15-1.0 MPa (22-145 psi) and speed is 30-500 mm/s.
It is an ISO 21287 compact cylinder with a hard-anodized aluminium body, threaded aluminium covers, an S45C hard-chrome plated 8 mm rod and a fixed TPU bumper at each end - about 50% shorter in mounting length than an ISO 15552 profile cylinder. This model carries the optional -S magnet, so CMSE / DMSE reed or solid-state switches mount in the body slots for end-of-stroke detection. FA flange and LB foot mounts fit the standard ISO 21287 face. Rod end is female M4x0.7 and the port is M5x0.8.
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