Airtac ACED Double-acting Compact Cylinder ACED125X20SB
The AirTAC Airtac ACED Double-acting Compact Cylinder ACED125X20SB is a genuine double acting, double rod ISO 21287 compact air cylinder with a Ø125mm bore and 20mm 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
- Stroke20 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 ACED125X20SB
A double acting compact cylinder built to ISO 21287, the ACED125X20SB pushes a 25 mm hard-chrome rod out of BOTH covers, so thrust is identical on every stroke: 5890.5 N at 0.5 MPa and 8246.7 N at 0.7 MPa, equal in each direction because both sides work on the rod-side area. At the 125 mm bore this is the top of the ACED range, delivering up to 1201.3 kgf at 1.0 MPa in a body roughly 50% shorter than an ISO 15552 profile cylinder, which is what lets it slot into heavy presses and clamping gantries where a full-length body simply has no room.
The male rod thread (B code) on each end accepts standard rod accessories, and the rear rod doubles as a sensor-flag carrier or a symmetric second mount that resists rotation and side load. This unit carries the optional -S magnet, so CMSE / DMSE reed or solid-state switches can be fitted for end-of-stroke signalling. A fixed TPU bumper at each cover takes the end-of-stroke shock, the hard-anodized aluminium body runs on air filtered to 40 um at 0.15-1.0 MPa (22-145 psi), and speed spans 30-500 mm/s. As a rule of thumb, plan on about 3534 N of real work at 0.5 MPa, which lifts roughly 300 kg vertically with a 2:1 margin.
Airtac ACED Double-acting Compact Cylinder ACED125X20SB Technical Specifications
| Model | Airtac ACED Double-acting Compact Cylinder ACED125X20SB |
|---|---|
| Series | ACED compact cylinder |
| Standard | ISO 21287 |
| Bore size | Ø125 mm |
| Stroke | 20 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 ACED125X20SB
| ACED | ISO 21287 compact cylinder (double-rod). |
|---|---|
| 125 | Bore size in mm. |
| ×20 | 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 ACED125X20SB Is Used
Short-stroke press fixture
A 20 mm stroke and 5890.5 N at 0.5 MPa suit a compact marking or staking head on an aluminium extrusion line, where the short ISO 21287 body fits inside the press guard.
Heavy clamp on a welding gantry
The through-rod gives a symmetric mount that resists rotation while clamping steel weldments; about 3534 N of usable force at 0.5 MPa holds large panels without oversizing the frame.
Position-flagged die change slide
With the -S magnet fitted, CMSE or DMSE switches read both end positions of a 20 mm die-locator slide, and the rear rod carries the flag without extra hardware.
Is the Airtac ACED Double-acting Compact Cylinder ACED125X20SB the Right Cylinder?
Step down to the ACED100 (3769.9 N at 0.5 MPa) if your jig needs less than about 380 kgf of thrust, or stay at 125 mm when you need the full 5890.5 N in a short 20 mm stroke. Remember the piston drifts if air is lost, so add a rod lock or pilot check valve for any held load. FA/FB flange, LB foot and FTC brackets bolt straight to the ISO 21287 face, and I/Y rod knuckles suit the male threaded rod ends.
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 ACED125X20SB FAQ
Yes, identical both ways because a rod exits each cover 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 1.0 MPa. Operating range is 0.15-1.0 MPa (22-145 psi), proof 1.5 MPa (215 psi), speed 30-500 mm/s, air filtered to 40 um, temperature -20 to +70 C.
The ISO 21287 body saves about 50% of the mounting length of an ISO 15552 profile cylinder, with a fixed TPU bumper at each cover absorbing end-of-stroke shock. The S in the code means the optional magnet is fitted, so CMSE / DMSE switches can be mounted; FA/FB flange, LB foot and FTC brackets plus I/Y knuckles bolt to the standard face.
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Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
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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