Airtac ACED Double-acting Compact Cylinder ACED125X40SB
The AirTAC Airtac ACED Double-acting Compact Cylinder ACED125X40SB 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 ACED125X40SB
A double acting, double-rod compact cylinder built to ISO 21287, the ACED125X40SB pushes a 125 mm bore through a short 40 mm stroke and delivers 5890.5 N in BOTH directions at 0.5 MPa, because a rod exits each cover and both strokes work on the rod-side area. The male rod thread (B code) and the fitted -S magnet for CMSE / DMSE switches are already on this code. At 0.7 MPa the same cylinder reaches 8246.7 N either way, with a maximum of 1201.3 kgf at 1.0 MPa.
The hard-anodized aluminium body with an S45C hard-chrome rod runs on air filtered to 40 um at 0.15-1.0 MPa (22-145 psi), 30-500 mm/s, from -20 to +70 C. Its short body saves about 50% of the mounting length of an ISO 15552 profile cylinder, so it slots into heavy presses and gantries where a full-length body will not fit. The 25 mm through-rod resists rotation and side load, and the rear rod can carry a sensor flag. Plan on roughly 3530 N (about 360 kgf) of usable push at 0.5 MPa, or about 300 kg of vertical lift with a 2:1 margin. Fixed TPU bumpers absorb end-of-stroke energy at both covers.
Airtac ACED Double-acting Compact Cylinder ACED125X40SB Technical Specifications
| Model | Airtac ACED Double-acting Compact Cylinder ACED125X40SB |
|---|---|
| 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 ACED125X40SB
| 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 ACED125X40SB Is Used
Short-stroke press station
The 5890.5 N both-ways force over just 40 mm suits a compact crimping or staking head on an electronics assembly line, where the short ISO 21287 body fits inside the press frame.
Symmetric lift fixture
With a rod at each cover, the same 5890.5 N acts up and down, so a machining-centre fixture can be raised and lowered with equal force and no rotation thanks to the 25 mm through-rod.
Position-checked clamp
The fitted -S magnet accepts CMSE / DMSE switches, so a welding-gantry clamp can confirm full advance and retract on both rod ends without external proximity brackets.
Is the Airtac ACED Double-acting Compact Cylinder ACED125X40SB the Right Cylinder?
For this force class the 125 mm bore sits at the top of the ACED range: the next size down, the 100 mm bore, gives 3769.9 N at 0.5 MPa, so step up to 125 mm when your press or clamp needs over 5000 N. The 40 mm stroke is well inside the 300 mm maximum standard stroke for this bore, so it is a catalogue item, not a made-to-order build. Note that a plain double-rod cylinder drifts when air is lost; for a held load add a rod lock or pilot check valve. Mount it with FA/FB flanges, LB feet or FTC brackets plus I/Y rod knuckles on the ISO 21287 face, and order G threads if PT ports do not suit your plant.
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 ACED125X40SB FAQ
Yes, equal both ways, because a rod exits both covers and both strokes use the rod-side area: 5890.5 N at 0.5 MPa, 8246.7 N at 0.7 MPa, and up to 1201.3 kgf at the 1.0 MPa maximum. Air supply is 0.15-1.0 MPa (22-145 psi) with a 1.5 MPa (215 psi) proof pressure, speed 30-500 mm/s, and the port is 1/4" PT on this 125 mm bore.
S means the optional -S magnet is fitted, so CMSE / DMSE reed or solid-state switches mount directly in the body slots; without that code there is no magnet. B means a male rod thread on the 25 mm rod. The fixed TPU bumpers at both ends absorb end-of-stroke energy, the short body saves about 50% of the mounting length of an ISO 15552 profile cylinder, and FA/FB flange, LB foot and FTC mounting bolt straight to the ISO 21287 face.
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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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Most inquiries answered within 7-8 hours.
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