Airtac ACEJ12 Adjustable Compact Cylinder ACEJ20X100-100S
The AirTAC Airtac ACEJ12 Adjustable Compact Cylinder ACEJ20X100-100S is a genuine double acting, adjustable stroke ISO 21287 compact air cylinder with a Ø20mm bore and 100mm 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
- Stroke100 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 ACEJ20X100-100S
A double acting compact actuator built to ISO 21287, the ACEJ20X100-100S pairs a 20 mm bore with a 100 mm stroke that can be trimmed anywhere from 0 to 100 mm on site. An external stop screw shortens the extend stroke within the ordered -100 window, so one cylinder can serve several station depths without reordering. 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 ceiling of 32 kgf at 1.0 MPa.
The short ISO 21287 body saves about 50% of the mounting length of an ISO 15552 profile cylinder, which is why it slots into tight fixture plates and guarded assemblies. Because the -S magnet is fitted on this model, CMSE or DMSE reed and solid-state switches can be clipped onto the body for end-of-stroke signals. Plan on roughly 94 N of usable working force at 0.5 MPa, which corresponds to lifting about 8 kg vertically with a 2:1 margin. Operating range is 0.15-1.0 MPa (22-145 psi) at 30-500 mm/s, with a fixed TPU bumper at each end.
Airtac ACEJ12 Adjustable Compact Cylinder ACEJ20X100-100S Technical Specifications
| Model | Airtac ACEJ12 Adjustable Compact Cylinder ACEJ20X100-100S |
|---|---|
| Series | ACEJ compact cylinder |
| Standard | ISO 21287 |
| Bore size | Ø20 mm |
| Stroke | 100 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 ACEJ20X100-100S
| ACEJ | ISO 21287 compact cylinder (adjustable-stroke). |
|---|---|
| 20 | Bore size in mm. |
| ×100 | Stroke length in mm. |
| -100 | 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 ACEJ20X100-100S Is Used
Fixture clamp with tunable stroke
On a CNC jig the -100 window lets one cylinder serve shallow and deep part nests: set the stop screw to 60 mm for short brackets, open it to 100 mm for tall housings, with 157.1 N of clamp force at 0.5 MPa.
Position-verified ejector on a small assembly cell
With the fitted -S magnet, CMSE or DMSE switches confirm the 100 mm push-out of a connector from its nest before the pick arm moves, at cycle speeds up to 500 mm/s.
Sample press in a lab automation module
The compact body fits inside a benchtop enclosure where an ISO 15552 profile cylinder would overhang, pressing microplate seals with about 94 N of working force at 0.5 MPa.
Is the Airtac ACEJ12 Adjustable Compact Cylinder ACEJ20X100-100S the Right Cylinder?
At this bore size the neighbours matter: a 16 mm bore delivers 100.5 N push at 0.5 MPa, while stepping up to 25 mm gives 245.4 N. If your tooling needs more than about 94 N of real working force, the 25 mm is the safer pick; lighter clamping or part-present checks stay comfortable on the 20 mm. The stop screw is a mechanical end stop for the extend stroke only - it does not lock the piston mid-stroke, so on air loss the rod can still drift. FA flange and LB foot mounts bolt to the ISO 21287 face, and the fitted -S magnet lets CMSE / DMSE switches report position. Female M6x1.0 rod thread, 1/8" ports, PT.
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 ACEJ20X100-100S 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 -100 code is a 100 mm adjustment window: an external stop screw shortens the 100 mm extend stroke by any amount, giving a usable range of 0-100 mm. It is a mechanical end stop, not a mid-stroke lock, so the rod can drift if air is lost. Operating pressure is 0.15-1.0 MPa (22-145 psi) and speed is 30-500 mm/s.
The ISO 21287 short body saves about 50% of the mounting length of an ISO 15552 profile cylinder, so it fits shallow fixture plates and guarded machines. This model carries the optional -S magnet, so CMSE or DMSE reed and solid-state switches mount directly on the body slots for end-of-stroke detection. FA flange and LB foot mounts bolt to the standard face, the rod end is female M6x1.0, ports are 1/8", and a fixed TPU bumper absorbs end-of-stroke impact at both ends.
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