Airtac ACED Double-acting Compact Cylinder ACED125X40
The AirTAC Airtac ACED Double-acting Compact Cylinder ACED125X40 is a genuine double acting, double rod ISO 21287 compact air cylinder with a Ø125mm bore and 40mm 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
- Stroke40 mm
- Port size1/4"
- Acting typeDouble acting, double rod
- 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 ACED Double-acting Compact Cylinder ACED125X40
A double acting compact cylinder built to ISO 21287, the ACED125X40 pushes a 125 mm piston through a 40 mm stroke with a rod leaving both covers. Because each side sees the rod-side area, output is identical in either direction: 5890.5 N at 0.5 MPa and 8246.7 N at 0.7 MPa. The hard-anodized aluminium body carries a S45C hard-chrome plated rod, and a fixed TPU bumper at each end absorbs end-of-stroke shock.
The short ISO 21287 body saves about 50% of the mounting length of an ISO 15552 profile cylinder, so this 125 mm bore fits heavy clamping stations and press heads where a full-length body would overhang. As a rule of thumb, plan on roughly 3534 N of usable work at 0.5 MPa, which corresponds to lifting about 300 kg vertically with a 2:1 margin. The through-rod resists rotation and side load, and the rear rod can carry a sensor flag. Air supply is 0.15-1.0 MPa (22-145 psi) with speed from 30-500 mm/s.
Airtac ACED Double-acting Compact Cylinder ACED125X40 Technical Specifications
| Model | Airtac ACED Double-acting Compact Cylinder ACED125X40 |
|---|---|
| Series | ACED compact cylinder |
| Standard | ISO 21287 |
| Bore size | Ø125 mm |
| Stroke | 40 mm |
| Acting type | Double acting, double rod |
| 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 | Force (both ways) |
|---|---|
| 0.5 MPa | 5890 N |
| 0.7 MPa | 8247 N |
| Max (@1.0 MPa) | 1201 kgf |
Double-rod: a rod exits both covers, so output force is equal in both directions (rod-side area used).
Model Code: Airtac ACED Double-acting Compact Cylinder ACED125X40
| ACED | ISO 21287 compact cylinder (double-rod). |
|---|---|
| 125 | Bore size in mm. |
| ×40 | Stroke length in mm. |
| 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 ACED Double-acting Compact Cylinder ACED125X40 Is Used
Heavy stamping press head
The 5890.5 N rod-side force in both directions drives a forming or marking head on a short-stroke press, with the through-rod keeping the tool plate square under side load.
Automotive fixture clamping
Equal 8246.7 N clamping at 0.7 MPa on both ends of the stroke suits weld-cell fixtures where the compact body must tuck under a gantry rail.
Pallet gate lifting
With about 300 kg of vertical lift capacity at a 2:1 margin, the 40 mm stroke raises heavy gate or stopper bars on packaging lines at up to 500 mm/s.
Is the Airtac ACED Double-acting Compact Cylinder ACED125X40 the Right Cylinder?
At 5890.5 N per direction at 0.5 MPa, the 125 mm bore is the top of the ACED range; step down to the 100 mm bore (3769.9 N) if your press or clamp needs less muscle. The 40 mm stroke sits well inside the 300 mm maximum standard stroke for this bore, so no made-to-order build is required. Remember that a plain double-rod cylinder drifts when air is lost - add a rod lock or pilot check if the load must stay put. Mount with FA/FB flange, LB foot or FTC brackets plus I/Y rod knuckles on the ISO 21287 face. This version has no magnet; order the -S code if you want CMSE / DMSE switch detection.
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 ACED Double-acting Compact Cylinder ACED125X40 FAQ
Yes - the double-rod design means a rod exits both covers, so both strokes use the rod-side area. Output is 5890.5 N at 0.5 MPa and 8246.7 N at 0.7 MPa, equal push and pull, with a maximum of 1201.3 kgf at 1.0 MPa. Operating range is 0.15-1.0 MPa (22-145 psi), proof pressure 1.5 MPa (215 psi), speed 30-500 mm/s, and the 1/4" port matches the 125 mm bore.
The ISO 21287 short body saves about 50% of the mounting length of an ISO 15552 profile cylinder, with a hard-anodized aluminium barrel, S45C hard-chrome rod and a fixed TPU bumper at each end that only decelerates the piston - it never holds a load. FA/FB flange, LB foot and FTC mounts plus I/Y knuckles bolt to the standard face. Sensors need the optional -S magnet code; this model has no magnet fitted, so order ACED125X40S to run CMSE or DMSE switches.
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1-Year Warranty
Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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