Airtac ACEJ12 Adjustable Compact Cylinder ACEJ16X45-40
The AirTAC Airtac ACEJ12 Adjustable Compact Cylinder ACEJ16X45-40 is a genuine double acting, adjustable stroke ISO 21287 compact air cylinder with a Ø16mm bore and 45mm 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
- Stroke45 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 ACEJ16X45-40
A double acting compact cylinder built to ISO 21287, the ACEJ16X45-40 pairs a 16 mm bore with a 45 mm stroke and an external stop screw that trims the extend stroke anywhere in a 40 mm window, giving a usable range of 5-45 mm. At 0.5 MPa it pushes 100.5 N and pulls 75.4 N, rising to 140.7 N at 0.7 MPa. The short body saves about 50% of the mounting length of an ISO 15552 profile cylinder, so it slots into tight fixtures and guarding where a full-length body cannot.
For sizing, plan on roughly 60 N of real work at 0.5 MPa instead of the full rating, which is about 6 kg of vertical lift with a 2:1 margin. The hard-anodized aluminium body carries an S45C hard-chrome rod with a female M4x0.7 thread, fixed TPU bumpers absorb end-of-stroke energy, and speed runs 30-500 mm/s at 0.15-1.0 MPa (22-145 psi). The magnet is the optional -S code; this version has none, so add -S if you later want CMSE / DMSE switch positions.
Airtac ACEJ12 Adjustable Compact Cylinder ACEJ16X45-40 Technical Specifications
| Model | Airtac ACEJ12 Adjustable Compact Cylinder ACEJ16X45-40 |
|---|---|
| Series | ACEJ compact cylinder |
| Standard | ISO 21287 |
| Bore size | Ø16 mm |
| Stroke | 45 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 ACEJ16X45-40
| ACEJ | ISO 21287 compact cylinder (adjustable-stroke). |
|---|---|
| 16 | Bore size in mm. |
| ×45 | Stroke length in mm. |
| -40 | 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 ACEJ16X45-40 Is Used
Small-part press fitting
Seats dowel pins or bearings into aluminium housings on an electronics assembly bench, where the 5-45 mm trim range matches varying part heights without re-fixturing.
Presence check in a test nest
With the optional -S magnet ordered, CMSE or DMSE switches confirm extend and retract on a PCB test fixture inside a compact guard.
Carton flap tuck station
Folds small flaps on a cosmetic-box packaging line, using the 100.5 N push at 0.5 MPa and the short ISO 21287 body to fit between conveyor frames.
Is the Airtac ACEJ12 Adjustable Compact Cylinder ACEJ16X45-40 the Right Cylinder?
At 100.5 N push (0.5 MPa) this 16 mm bore suits light clamping and part present checks; step down to the 12 mm bore (56.5 N) for smaller loads or up to the 20 mm bore (157.1 N) when more force is needed. The stop screw is a mechanical end stop for the extend stroke only - it does not hold a load if air is lost. FA flange or LB foot mounts bolt to the ISO 21287 face, and the female M4x0.7 rod thread accepts standard knuckles.
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 ACEJ16X45-40 FAQ
Bore 16 mm, stroke 45 mm with a 40 mm adjustment window (usable extend range 5-45 mm). Push is 100.5 N and pull 75.4 N at 0.5 MPa; at 0.7 MPa push is 140.7 N and pull 105.6 N; theoretical maximum is 20.5 kgf at 1.0 MPa. Operating pressure is 0.15-1.0 MPa (22-145 psi), proof 1.5 MPa (215 psi), speed 30-500 mm/s, air filtered to 40 um, temperature -20 to +70 C.
It is an ISO 21287 compact cylinder with a hard-anodized aluminium body, S45C hard-chrome rod, threaded covers and a fixed TPU bumper at each end, about 50% shorter in mounting length than an ISO 15552 profile cylinder. Sensing needs the optional -S magnet code; this model has no magnet, so order ACEJ16X45-40S to run CMSE / DMSE switches. FA flange and LB foot mounts plus I/Y rod knuckles bolt straight on.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
Request a Quote for Airtac ACEJ12 Adjustable Compact Cylinder ACEJ16X45-40
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.