Airtac ACEJ12 Adjustable Compact Cylinder ACEJ20X60-30SB
The AirTAC Airtac ACEJ12 Adjustable Compact Cylinder ACEJ20X60-30SB is a genuine double acting, adjustable stroke ISO 21287 compact air cylinder with a Ø20mm bore and 60mm 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
- Stroke60 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 ACEJ20X60-30SB
The ACEJ20X60-30SB is a double acting ISO 21287 compact cylinder with an adjustable extend stroke. Its 20 mm bore delivers 157.1 N push and 117.8 N pull at 0.5 MPa, rising to 219.9 N push at 0.7 MPa, with a theoretical peak of 32 kgf at 1.0 MPa. The -30 code adds a 30 mm adjustment window: an external stop screw trims the 60 mm extend stroke down to 30 mm on site, so one cylinder covers a 30-60 mm range without reordering. The S code means the magnet is fitted, so CMSE / DMSE reed or solid-state switches can be mounted anywhere along the body slots.
The short ISO 21287 body saves about 50% of the mounting length of an ISO 15552 profile cylinder, which is why it suits tight jigs, guarding and gantry frames. A hard-anodized aluminium body carries an S45C hard-chrome-plated 10 mm rod with a male thread (B code), and fixed TPU bumpers absorb end-of-stroke energy at both ends. For vertical lifts, halving the 16 kgf push equivalent leaves a comfortable 2:1 margin, so plan on lifting about 8 kg vertically. Speed range is 30-500 mm/s at 0.15-1.0 MPa (22-145 psi).
Airtac ACEJ12 Adjustable Compact Cylinder ACEJ20X60-30SB Technical Specifications
| Model | Airtac ACEJ12 Adjustable Compact Cylinder ACEJ20X60-30SB |
|---|---|
| Series | ACEJ compact cylinder |
| Standard | ISO 21287 |
| Bore size | Ø20 mm |
| Stroke | 60 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 ACEJ20X60-30SB
| ACEJ | ISO 21287 compact cylinder (adjustable-stroke). |
|---|---|
| 20 | Bore size in mm. |
| ×60 | 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 ACEJ20X60-30SB Is Used
Small-parts ejection in plastic molding
A 30-60 mm adjustable stroke lets the molder trim the eject position per mold, with 157.1 N push at 0.5 MPa enough to clear lightweight ABS or PP parts from shallow cavities.
Packaging line reject pushers
On a carton or blister line, the 20 mm bore nudges off-spec packs off the belt, and the fitted magnet with CMSE switches confirms the pusher has returned home each cycle.
Bench-top test and clamping rigs
Lab and QC fixtures use the male rod thread to carry a custom probe or pad, applying up to 219.9 N at 0.7 MPa while the compact body fits inside a guarded frame.
Is the Airtac ACEJ12 Adjustable Compact Cylinder ACEJ20X60-30SB the Right Cylinder?
Size the job both ways before ordering. If 157.1 N at 0.5 MPa is more than needed, the ACEJ16 gives 100.5 N push at the same pressure; if the load demands more, step up to the ACEJ25 at 245.4 N. In practice, budget roughly 94 N of usable push (about 0.6 of the rating) for real work at 0.5 MPa. Remember the stop screw is a mechanical end stop only: it sets the extend position but does not lock the piston, so on air loss the rod will drift. Mounting drops straight onto the ISO 21287 face - FA flange or LB foot brackets plus I and Y rod knuckles - and because the magnet is already fitted (S code), CMSE / DMSE switches can be added at any time. The male rod thread suits fixtures that clamp directly onto the rod; choose the female-thread version if your clevis needs a tapped hole.
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 ACEJ20X60-30SB 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; theoretical maximum is 32 kgf at 1.0 MPa. It is double acting with a 60 mm stroke adjustable down to 30 mm via the external stop screw (-30 window), running 30-500 mm/s 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. Port is M5x0.8 and the rod is 10 mm with a male thread.
The ISO 21287 short body saves about 50% of the mounting length of an ISO 15552 profile cylinder, so it fits where a full-length cylinder will not. End-of-stroke energy is absorbed by fixed TPU bumpers, and FA flange or LB foot brackets plus I/Y rod knuckles bolt straight to the standard face. This model carries the optional -S magnet, so CMSE / DMSE reed or solid-state switches can be clipped into the body slots for end-of-stroke or mid-range detection.
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