Airtac ACEJ12 Adjustable Compact Cylinder ACEJ16X50-30
The AirTAC Airtac ACEJ12 Adjustable Compact Cylinder ACEJ16X50-30 is a genuine double acting, adjustable stroke ISO 21287 compact air cylinder with a Ø16mm bore and 50mm 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
- Stroke50 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 ACEJ16X50-30
The ACEJ16X50-30 is a double acting ISO 21287 compact cylinder with an adjustable extend stroke: an external stop screw trims the 50 mm stroke by up to 30 mm on site, giving a usable range of 20-50 mm without changing the cylinder. At 0.5 MPa the 16 mm bore delivers 100.5 N push and 75.4 N pull, rising to 140.7 N push at 0.7 MPa, with a theoretical maximum of 20.5 kgf at 1.0 MPa. Its 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 will not fit.
In practice, plan for roughly 60 N of real work at 0.5 MPa, which lifts about 5 kg vertically with a 2:1 margin - enough for small clamps, gates and light parts. The hard-anodized aluminium body carries an S45C hard-chrome plated rod with a female M4x0.7 thread, and a fixed TPU bumper at each end absorbs end-of-stroke energy. Speed range is 30-500 mm/s over 0.15-1.0 MPa (22-145 psi) of clean, 40 um filtered air. Note that this unit has no magnet fitted; order the -S code if you need CMSE / DMSE switch sensing.
Airtac ACEJ12 Adjustable Compact Cylinder ACEJ16X50-30 Technical Specifications
| Model | Airtac ACEJ12 Adjustable Compact Cylinder ACEJ16X50-30 |
|---|---|
| Series | ACEJ compact cylinder |
| Standard | ISO 21287 |
| Bore size | Ø16 mm |
| Stroke | 50 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 ACEJ16X50-30
| ACEJ | ISO 21287 compact cylinder (adjustable-stroke). |
|---|---|
| 16 | Bore size in mm. |
| ×50 | Stroke length in mm. |
| -30 | 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 ACEJ16X50-30 Is Used
Small-part clamping fixture
Trims to 20-50 mm to clamp brackets or housings on an electronics assembly jig, using about 60 N of usable force at 0.5 MPa.
Carton gate pusher
The 100.5 N push at 0.5 MPa is enough to swing a light divert gate on a packaging line, and the short body fits inside tight guarding.
Lab sample ejector
Lifts or ejects sample trays of about 5 kg vertically with a 2:1 margin, with the stop screw set to a repeatable shortened stroke.
Is the Airtac ACEJ12 Adjustable Compact Cylinder ACEJ16X50-30 the Right Cylinder?
Size check: the next bore down, ACEJ12, gives only 56.5 N push at 0.5 MPa, while the ACEJ20 reaches 157.1 N - so pick the 16 mm bore when your load sits between roughly 35 and 60 N of working force. Remember the stop screw is a mechanical end stop for the extend stroke, not a mid-stroke lock: on air loss the piston still drifts, so do not rely on it to hold a load. FA flange or LB foot mounts and I/Y rod knuckles bolt to the standard ISO 21287 face, and the optional -S magnet enables CMSE / DMSE switches if position feedback is added later.
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 ACEJ16X50-30 FAQ
At 0.5 MPa it pushes with 100.5 N and pulls with 75.4 N. At 0.7 MPa those figures rise to 140.7 N push and 105.6 N pull. The theoretical maximum at 1.0 MPa is 20.5 kgf. Operating pressure is 0.15-1.0 MPa (22-145 psi), proof pressure 1.5 MPa (215 psi), and speed 30-500 mm/s on air filtered to 40 um.
The -30 code is a 30 mm adjustment window: an external stop screw shortens the 50 mm extend stroke to any length from 20 mm up, so one cylinder covers several station depths. The TPU bumpers at both ends are fixed pads that only soften the ends of travel - they never lock or hold a load. This version has no magnet; order the -S code to enable CMSE / DMSE reed or solid-state switches. Mounting is via FA flange, LB foot, or I/Y rod knuckles on the ISO 21287 face, and the compact body is about 50% shorter than an ISO 15552 profile cylinder.
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