Airtac ACEJ12 Adjustable Compact Cylinder ACEJ20X90-30S
The AirTAC Airtac ACEJ12 Adjustable Compact Cylinder ACEJ20X90-30S is a genuine double acting, adjustable stroke ISO 21287 compact air cylinder with a Ø20mm bore and 90mm 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.
- BoreØ20 mm
- Stroke90 mm
- Port sizeM5×0.8
- Acting typeDouble acting, adjustable stroke
- Rod threadM6×1.0
- CushionFixed TPU bumper (both ends)
About the Airtac ACEJ12 Adjustable Compact Cylinder ACEJ20X90-30S
The ACEJ20X90-30S is a double acting AirTAC compact cylinder built to ISO 21287, with a 20 mm bore and a 90 mm stroke that an external stop screw can trim anywhere in a 30 mm window, giving a usable extend range of 60-90 mm. At 0.5 MPa it pushes 157.1 N and pulls 117.8 N; at 0.7 MPa those rise to 219.9 N and 164.9 N, with a theoretical 32 kgf at 1.0 MPa. The short ISO 21287 body saves about 50% of the mounting length of an ISO 15552 profile cylinder, so it slots into tight jigs, guarding and gantries where a full-length body will not fit.
This model carries the optional -S magnet, so CMSE or DMSE reed and solid-state switches can be clamped anywhere along the body for end-of-travel signals. Plan on roughly 94 N (about 9.6 kg lifted vertically) of real work at 0.5 MPa rather than the full 157.1 N rating. The hard-anodized aluminium body pairs with an S45C hard-chrome plated rod, a fixed TPU bumper absorbs end-of-stroke shock at both ends, and the female M6x1.0 rod thread plus FA/LB mounting faces drop straight into standard fixtures. Operating range is 0.15-1.0 MPa (22-145 psi), 30-500 mm/s, -20 to +70 C.
Airtac ACEJ12 Adjustable Compact Cylinder ACEJ20X90-30S Technical Specifications
| Model | Airtac ACEJ12 Adjustable Compact Cylinder ACEJ20X90-30S |
|---|---|
| Series | ACEJ compact cylinder |
| Standard | ISO 21287 |
| Bore size | Ø20 mm |
| Stroke | 90 mm |
| Acting type | Double acting, adjustable stroke |
| Port size | M5×0.8 |
| Rod thread | M6×1.0 |
| 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 100 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 (Ø20mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 157 N | 118 N |
| 0.7 MPa | 220 N | 165 N |
| Max (@1.0 MPa) | 32 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 ACEJ20X90-30S
| ACEJ | ISO 21287 compact cylinder (adjustable-stroke). |
|---|---|
| 20 | Bore size in mm. |
| ×90 | 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 ACEJ20X90-30S Is Used
Fixture clamp trim
Set the stop screw anywhere from 60 to 90 mm so the rod clamps PCB or die-cast fixtures at the exact depth without re-plumbing the air.
Gated part detection
With the -S magnet fitted, CMSE or DMSE switches confirm slide or gate position on packaging and assembly machines.
Compact press assist
About 94 N of usable push at 0.5 MPa suits light press-fit and snap-fit work in short-body stations where a profile cylinder is too long.
Is the Airtac ACEJ12 Adjustable Compact Cylinder ACEJ20X90-30S the Right Cylinder?
At 157.1 N push at 0.5 MPa this 20 mm bore suits light clamping and part-present tasks; step down to a 16 mm bore (100.5 N) for smaller loads or up to a 25 mm bore (245.4 N) if your fixture grows. The 90 mm stroke sits inside the 100 mm maximum standard stroke for this bore, so no made-to-order length is needed. Remember the stop screw only shortens the extend stroke within the ordered 30 mm window - it is a mechanical end stop, not a mid-stroke lock, so on air loss the piston still drifts. If you need position signals, this -S version already has the magnet for CMSE / DMSE switches; FA flange or LB foot mounts bolt to 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 ACEJ12 Adjustable Compact Cylinder ACEJ20X90-30S FAQ
At 0.5 MPa it pushes 157.1 N and pulls 117.8 N; at 0.7 MPa, 219.9 N push and 164.9 N pull; theoretical maximum is 32 kgf at 1.0 MPa. The 20 mm bore has an M5x0.8 port and a 10 mm rod with female M6x1.0 thread. It is double acting with an adjustable extend stroke: the -30 stop screw trims the 90 mm stroke by up to 30 mm (usable 60-90 mm). Operating pressure is 0.15-1.0 MPa (22-145 psi), proof 1.5 MPa (215 psi), speed 30-500 mm/s, temperature -20 to +70 C, with a fixed TPU bumper at both ends.
The ISO 21287 short body saves about 50% of the mounting length of an ISO 15552 profile cylinder, ideal for tight guarding and gantries. FA flange, LB foot and FTC brackets plus I/Y rod knuckles bolt to the standard face. This model carries the optional -S magnet, so CMSE / DMSE reed or solid-state switches can be mounted anywhere along the body slots for position feedback.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models usually ship in 3-4 days.
Fast Reply
Most inquiries answered within 7-8 hours.
Request a Quote for Airtac ACEJ12 Adjustable Compact Cylinder ACEJ20X90-30S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.