Airtac ACEJ12 Adjustable Compact Cylinder ACEJ20X90-30SB
The AirTAC Airtac ACEJ12 Adjustable Compact Cylinder ACEJ20X90-30SB 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 ACEJ20X90-30SB
This is a double acting ISO 21287 compact cylinder with an adjustable extend stroke: an external stop screw trims the 90 mm stroke by up to 30 mm, giving a usable 60-90 mm range without changing the cylinder. At 0.5 MPa the 20 mm bore pushes 157.1 N and pulls 117.8 N, and a practical rule of thumb is to plan about 94 N of real work (0.6 of the push force), which is roughly a 9.6 kg vertical lift with margin.
The short hard-anodized aluminium body saves about 50% of the mounting length of an ISO 15552 profile cylinder, so it slots into tight fixtures and sliding guards. This -SB model carries the optional -S magnet, so CMSE or DMSE reed or solid-state switches can be clamped on for end-of-stroke signals, and the male rod thread (B code) bolts straight to external tooling. A fixed TPU bumper at each end absorbs end-of-stroke energy, and the S45C hard-chrome rod resists wear at speeds of 30-500 mm/s.
Airtac ACEJ12 Adjustable Compact Cylinder ACEJ20X90-30SB Technical Specifications
| Model | Airtac ACEJ12 Adjustable Compact Cylinder ACEJ20X90-30SB |
|---|---|
| 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 ACEJ20X90-30SB
| 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 ACEJ20X90-30SB Is Used
PCB test fixture clamping
The 60-90 mm adjustable window lets one cylinder serve multiple fixture heights; 157.1 N at 0.5 MPa is enough for light hold-down clamps on circuit boards.
Small-parts ejector on assembly stations
With the fitted -S magnet and CMSE switches, both end positions are confirmed electrically while the 90 mm stroke pushes parts off a nest at up to 500 mm/s.
Gate pin retraction in packaging heads
The compact body fits where an ISO 15552 profile cylinder is too long, and the male rod thread (B code) attaches directly to gate pins needing about 94 N of working force.
Is the Airtac ACEJ12 Adjustable Compact Cylinder ACEJ20X90-30SB the Right Cylinder?
At 157.1 N push (0.5 MPa) this 20 mm bore suits light clamping and positioning; if your load needs more, the 25 mm bore delivers 245.4 N push and 206.2 N pull at the same pressure, while the 16 mm bore (100.5 N push) covers lighter duties. Remember the stop screw only shortens the extend stroke to a mechanical end position - it is not a mid-stroke lock, so the rod can drift if air is lost. Mount with FA flange or LB foot brackets, and keep the -S magnet in mind whenever CMSE / DMSE switch feedback is needed.
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 ACEJ20X90-30SB FAQ
At 0.5 MPa it pushes 157.1 N and pulls 117.8 N; at 0.7 MPa push rises to 219.9 N and pull to 164.9 N, with a theoretical maximum of 32 kgf at 1.0 MPa. It is double acting with an adjustable extend stroke (30 mm window, usable 60-90 mm), runs on air filtered to 40 um at 0.15-1.0 MPa (22-145 psi), proof pressure 1.5 MPa (215 psi), temperature -20 to +70 C, speed 30-500 mm/s, port M5x0.8, rod 10 mm with male thread.
The ISO 21287 short body saves about 50% of the mounting length of an ISO 15552 profile cylinder, with FA flange and LB foot brackets plus I/Y rod knuckles bolting to the standard face. This model carries the optional -S magnet, so CMSE or DMSE reed or solid-state switches mount in the body slots for end-of-stroke detection; a fixed TPU bumper at each end absorbs end-of-stroke energy but does not hold or brake a load.
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 ACEJ20X90-30SB
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.