Airtac ACEJ12 Adjustable Compact Cylinder ACEJ20X90-30
The AirTAC Airtac ACEJ12 Adjustable Compact Cylinder ACEJ20X90-30 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 ACEJ20X90-30
A double acting ISO 21287 compact cylinder, the ACEJ20X90-30 pairs a 20 mm bore with a 90 mm stroke and a 30 mm adjustment window: an external stop screw trims the extend stroke anywhere between 60 and 90 mm on site. At 0.5 MPa it pushes 157.1 N and pulls 117.8 N, rising to 219.9 N at 0.7 MPa, with a theoretical maximum of 32 kgf at 1.0 MPa. The short body saves about 50% of the mounting length of an ISO 15552 profile cylinder, so it slots into tight jigs and guarding where a full-length body cannot fit.
As a rule of thumb, plan on roughly 94 N of usable work force at 0.5 MPa (about 60% of the push rating), which corresponds to lifting around 9 kg vertically - halve that to about 4-5 kg if you want a 2:1 margin on a vertical pick. The hard-anodized aluminium body carries a hard-chrome plated S45C rod, fixed TPU bumpers absorb end-of-stroke impact at both ends, and the rod ends in a female M6x1.0 thread. Note that no magnet is fitted on this version; the optional -S code adds one for CMSE / DMSE switch sensing.
Airtac ACEJ12 Adjustable Compact Cylinder ACEJ20X90-30 Technical Specifications
| Model | Airtac ACEJ12 Adjustable Compact Cylinder ACEJ20X90-30 |
|---|---|
| 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 ACEJ20X90-30
| 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 ACEJ20X90-30 Is Used
Fixture clamp stroke matching
On a machining fixture, the 30 mm window lets one cylinder serve several part heights: dial the 90 mm extend stroke down to 60 mm with the stop screw instead of swapping cylinders between setups.
Small parts ejector
With 157.1 N push at 0.5 MPa, the 20 mm bore ejects stamped or molded parts off a die or nest, and the compact body fits inside the die shoe where a profile cylinder would overhang.
Lab press and test station
The 60-90 mm adjustable range and 219.9 N push at 0.7 MPa suit bench-top pressing, sample holding and small test rigs running at 30-500 mm/s.
Is the Airtac ACEJ12 Adjustable Compact Cylinder ACEJ20X90-30 the Right Cylinder?
Check the load both ways before committing. At 157.1 N push (0.5 MPa) this 20 mm bore suits clamping and positioning up to roughly 94 N of real work; if your load is lighter, the 16 mm bore (100.5 N push) saves more space, while the 25 mm bore (245.4 N push) gives headroom for stiffer cycles. The stop screw is a mechanical end stop only - it sets the extend stroke but does not lock the piston, so on air loss the rod will drift. Mount on the ISO 21287 face with FA flange or LB foot hardware plus I or Y rod knuckles, and order the -S variant if you need CMSE / DMSE position switches.
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 ACEJ20X90-30 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 32 kgf at 1.0 MPa. It is double acting with a 90 mm extend stroke adjustable down to 60 mm via the stop screw, air supply filtered to 40 um, operating pressure 0.15-1.0 MPa (22-145 psi), proof pressure 1.5 MPa (215 psi), speed 30-500 mm/s, temperature -20 to +70 C, M5x0.8 ports and a female M6x1.0 rod thread.
The ISO 21287 short body saves about 50% of the mounting length of an ISO 15552 profile cylinder, so it fits shallow jigs and guarded gantries. Fixed TPU bumpers at both ends absorb end-of-stroke impact. This version has no magnet, so no switch can be mounted; order the -S code to get the optional magnet for CMSE / DMSE reed or solid-state switches. FA flange and LB foot mounts plus I/Y rod knuckles bolt straight to the standard face.
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 ACEJ20X90-30
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.