
The AirTAC Airtac ACED Double-acting Compact Cylinder ACED125X275SB is a genuine double acting, double rod ISO 21287 compact air cylinder with a Ø125mm bore and 275mm 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.
A double acting compact cylinder built to ISO 21287, the ACED125X275SB pushes a 125 mm bore through a 275 mm stroke with a 25 mm rod exiting BOTH covers. Because both strokes work on the rod-side area, output is identical in each direction: 5890.5 N at 0.5 MPa and 8246.7 N at 0.7 MPa. The male rod thread (B code) bolts straight to tooling, and the through-rod resists rotation and side load while the rear rod can carry a sensor flag. The hard-anodized aluminium body with an S45C hard-chrome plated rod runs on air filtered to 40 um at 0.15-1.0 MPa (22-145 psi), 30-500 mm/s.
The short ISO 21287 body saves about 50% of the mounting length of an ISO 15552 profile cylinder, so this 275 mm stroke fits deep presses, gantries and guarding where a full-length body will not. A fixed TPU bumper at each end absorbs end-of-stroke shock. With the -S magnet fitted, CMSE / DMSE reed or solid-state switches read position along the body slots. As a rule of thumb, plan on roughly 3534 N of usable force at 0.5 MPa, which lifts about 180 kg vertically with a 2:1 margin. If air is lost the piston drifts, so add a rod lock or pilot check for held loads.
| Model | Airtac ACED Double-acting Compact Cylinder ACED125X275SB |
|---|---|
| Series | ACED compact cylinder |
| Standard | ISO 21287 |
| Bore size | Ø125 mm |
| Stroke | 275 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.
| 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).
| ACED | ISO 21287 compact cylinder (double-rod). |
|---|---|
| 125 | Bore size in mm. |
| ×275 | 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.
The 5890.5 N symmetric force at 0.5 MPa drives scrap compactors and bale ejectors, and the equal return stroke retracts the platen under the same power without oversizing the valve.
In a stamping or riveting cell, the 275 mm stroke reaches deep into a frame while the short ISO 21287 body keeps the overall length about half that of an ISO 15552 profile cylinder.
With about 180 kg of vertical lift capacity at a 2:1 margin, the through-rod carries a clamp plate on the front and a position flag on the rear rod for CMSE / DMSE switches.
At this force class the nearest smaller step is the 100 mm bore at 3769.9 N at 0.5 MPa; if you need more, move to a larger custom solution, since 125 mm is the top of the ACED range. Choose the male rod thread (B) when coupling to knuckles or fixtures, or the female thread for simpler rod attachments. Mount with FA/FB flanges, LB foot or FTC brackets plus I/Y rod knuckles on the ISO 21287 face. This model already carries the optional -S magnet, so CMSE / DMSE switches can be added directly; without the S code there is no magnet in the piston.
Quick checklist
Output is equal 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, 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, temperature -20 to +70 C, on air filtered to 40 um.
The ISO 21287 short-body design saves about 50% of the mounting length of an ISO 15552 profile cylinder, with a hard-anodized aluminium body and S45C hard-chrome rod. A fixed TPU bumper at each end absorbs end-of-stroke energy. This version carries the optional -S magnet, so CMSE / DMSE switches can be slid into the body slots; models ordered without the S code have no magnet. Mounting uses FA/FB flange, LB foot or FTC brackets with I/Y rod knuckles.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models are processed and dispatched in 3-5 business days.
Most inquiries answered within 7-8 hours.
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.