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, 1/8" 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 size1/8"
- Acting typeDouble acting, adjustable stroke
- Rod threadM6×1.0
- 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 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 | 1/8" |
| 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 a 1/8" 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.
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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.
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Most inquiries answered within 7-8 hours.
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