Airtac ACEJ125 Adjustable Compact Cylinder ACEJ125X160-30S
The AirTAC Airtac ACEJ125 Adjustable Compact Cylinder ACEJ125X160-30S is a genuine double acting, adjustable stroke ISO 21287 compact air cylinder with a Ø125mm bore and 160mm stroke, 1/4" 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.
- BoreØ125 mm
- Stroke160 mm
- Port size1/4"
- Acting typeDouble acting, adjustable stroke
- Rod threadM16×2.0
- 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 ACEJ125 Adjustable Compact Cylinder ACEJ125X160-30S
The ACEJ125X160-30S is a double acting, adjustable-stroke compact cylinder built to ISO 21287. Its 125 mm bore delivers 6135.9 N push and 5890.5 N pull at 0.5 MPa, rising to 8590.3 N push at 0.7 MPa, with a theoretical peak of 1251.4 kgf at 1.0 MPa. An external stop screw trims the 160 mm extend stroke by up to 30 mm on site, giving a usable range of 130-160 mm without changing the cylinder. The short body saves about 50% of the mounting length of an ISO 15552 profile cylinder, so heavy presses and clamps fit into frames where a full-length body will not.
The hard-anodized aluminium body carries a 25 mm S45C hard-chrome-plated rod with a female M16x2.0 thread, and 1/4" PT ports feed both chambers. Fixed TPU bumpers at each end absorb end-of-stroke energy, and the fitted -S magnet lets CMSE / DMSE reed or solid-state switches report end positions. Plan on roughly 3680 N of real work at 0.5 MPa (about 0.6 of the push rating), which is around 375 kg of vertical lift with a 2:1 margin. Operating window is 0.15-1.0 MPa (22-145 psi), 30-500 mm/s, -20 to +70 C.
Airtac ACEJ125 Adjustable Compact Cylinder ACEJ125X160-30S Technical Specifications
| Model | Airtac ACEJ125 Adjustable Compact Cylinder ACEJ125X160-30S |
|---|---|
| Series | ACEJ compact cylinder |
| Standard | ISO 21287 |
| Bore size | Ø125 mm |
| Stroke | 160 mm |
| Acting type | Double acting, adjustable stroke |
| Port size | 1/4" |
| Rod thread | M16×2.0 |
| 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 300 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 (Ø125mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 6136 N | 5890 N |
| 0.7 MPa | 8590 N | 8247 N |
| Max (@1.0 MPa) | 1251 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac ACEJ125 Adjustable Compact Cylinder ACEJ125X160-30S
| ACEJ | ISO 21287 compact cylinder (adjustable-stroke). |
|---|---|
| 125 | Bore size in mm. |
| ×160 | 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 ACEJ125 Adjustable Compact Cylinder ACEJ125X160-30S Is Used
Heavy stamping and forming press
With 6135.9 N push at 0.5 MPa and about 375 kg of vertical lift capacity at a 2:1 margin, the 125 mm bore drives small stamping, riveting and forming heads on short-stroke press fixtures.
Automotive fixture clamping
The 130-160 mm adjustable extend range lets line builders dial in clamp travel per fixture, and the short ISO 21287 body fits dense weld-cell tooling where a full-length profile cylinder cannot.
Pallet and container ejection
On packaging lines the 160 mm stroke ejects loaded pallets or bins, with CMSE / DMSE switches on the fitted -S magnet confirming extend and retract for PLC interlocks.
Is the Airtac ACEJ125 Adjustable Compact Cylinder ACEJ125X160-30S the Right Cylinder?
At this force class the ACEJ125X160-30S sits near the top of the range: the next size down, bore 100, gives 3927.0 N push at 0.5 MPa, while bore 125 is the largest in the series, so step down if 6135.9 N is more than the job needs. Remember the stop screw is a mechanical end stop for the extend stroke, not a mid-stroke lock, so the rod still drifts if air is lost. FA flange or LB foot mounts bolt to the ISO 21287 face, and I or Y rod knuckles suit swinging clamp arms. This unit already carries the -S magnet; order plain ACEJ codes without S when no switching is required.
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 ACEJ125 Adjustable Compact Cylinder ACEJ125X160-30S FAQ
At 0.5 MPa it pushes 6135.9 N and pulls 5890.5 N; at 0.7 MPa those rise to 8590.3 N push and 8246.7 N pull, with a theoretical maximum of 1251.4 kgf at 1.0 MPa. The -30 code is a 30 mm adjustment window: an external stop screw shortens the 160 mm extend stroke by up to 30 mm, so the working range is 130-160 mm. It runs on air filtered to 40 um at 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, with 1/4" PT ports and a female M16x2.0 rod thread.
It is an ISO 21287 compact cylinder whose short body saves about 50% of the mounting length of an ISO 15552 profile cylinder, so it suits tight gantries and guards. The hard-anodized aluminium body has magnet slots along its length, and because this model carries the optional -S magnet you can fit CMSE / DMSE reed or solid-state switches for end-position signals. Fixed TPU bumpers at both ends absorb end-of-stroke energy, FA flange and LB foot mounts bolt straight to the ISO 21287 face, and outline dimensions should be confirmed from the datasheet.
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