Airtac ACED Double-acting Compact Cylinder ACED125X50B
The AirTAC Airtac ACED Double-acting Compact Cylinder ACED125X50B is a genuine double acting, double rod ISO 21287 compact air cylinder with a Ø125mm bore and 50mm 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
- Stroke50 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 ACED125X50B
A double acting, double-rod ISO 21287 compact cylinder, the ACED125X50B drives a 25 mm hard-chrome-plated S45C rod out of BOTH covers, so thrust is identical on the extend and retract strokes. At the 125 mm bore that means 5890.5 N at 0.5 MPa and 8246.7 N at 0.7 MPa in either direction - the largest force class in the ACED range, with a peak of 1201.3 kgf at 1.0 MPa. The 1/4" ports feed air filtered to 40 um across a 0.15-1.0 MPa (22-145 psi) band, and speed runs 30-500 mm/s.
The short ISO 21287 body saves about 50% of the mounting length of an ISO 15552 profile cylinder, which matters when a 50 mm stroke press or clamp has to live inside a guarded frame. The through-rod resists rotation and side load and gives a symmetric mount, and the rear rod can carry a fixture or sensor flag. A fixed TPU bumper at each end absorbs end-of-stroke shock. As a planning figure, treat roughly 3534 N as the usable working thrust at 0.5 MPa - enough to lift about 300 kg vertically with a 2:1 margin. Note that the piston drifts if air is lost, so a held load needs a rod lock or pilot check.
Airtac ACED Double-acting Compact Cylinder ACED125X50B Technical Specifications
| Model | Airtac ACED Double-acting Compact Cylinder ACED125X50B |
|---|---|
| Series | ACED compact cylinder |
| Standard | ISO 21287 |
| Bore size | Ø125 mm |
| Stroke | 50 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 ACED125X50B
| ACED | ISO 21287 compact cylinder (double-rod). |
|---|---|
| 125 | Bore size in mm. |
| ×50 | 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 ACED125X50B Is Used
Heavy stamping and marking press
With 5890.5 N available in both directions at 0.5 MPa, the 125 mm bore drives die-marking and staking heads on aluminium extrusion lines, and the short body slots into presses where a full-length ISO 15552 profile cylinder will not fit.
Pallet gate and lift-assist actuation
The through-rod gives a symmetric mount for scissor-gate and lift-table linkages, and with a 2:1 margin the cylinder lifts about 300 kg vertically - enough for loaded pallets or steel fixtures moving at 30-500 mm/s.
Clamping fixtures on machining centres
Rear-rod clamping of large castings on CNC fixtures uses the equal 8246.7 N retract force at 0.7 MPa, while the fixed TPU bumpers absorb the clamp snap at each end of the 50 mm stroke.
Is the Airtac ACED Double-acting Compact Cylinder ACED125X50B the Right Cylinder?
At 125 mm bore this is the top of the ACED line: 5890.5 N at 0.5 MPa versus 3769.9 N for the 100 mm bore. If the job needs under 3800 N, step down to ACED100X50B and save air consumption; if 5890.5 N is marginal at 0.5 MPa, running 0.7 MPa gives 8246.7 N without changing hardware. The 50 mm stroke sits well inside the 300 mm maximum standard stroke for this bore, so it is a catalogue item, not a made-to-order length.
The B code specifies a male rod thread on both ends, and the port thread is PT. Mounting brackets from the FA/FB flange and LB foot family bolt straight to the ISO 21287 face, with I and Y rod knuckles available for the double-rod ends. This unit has no magnet fitted; if you need CMSE or DMSE switch position feedback, order the -S variant instead.
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 ACED125X50B FAQ
Yes - because a rod exits both covers, both strokes use the rod-side area, so output is equal in extend and retract: 5890.5 N at 0.5 MPa and 8246.7 N at 0.7 MPa, peaking at 1201.3 kgf at 1.0 MPa. Operating pressure is 0.15-1.0 MPa (22-145 psi) with 1.5 MPa (215 psi) proof pressure, air filtered to 40 um, speed 30-500 mm/s and a -20 to +70 C range. The 1/4" ports take PT thread, the rod is 25 mm with male thread (B code), and the 50 mm stroke is within the 300 mm maximum standard stroke for this bore.
The hard-anodized aluminium body with threaded aluminium covers saves about 50% of the mounting length of an ISO 15552 profile cylinder, so the 125 mm bore fits guarded frames and tight fixtures. A fixed TPU bumper at each end absorbs end-of-stroke energy. This version has no magnet, so no switch can be mounted; order the -S code to enable CMSE or DMSE reed or solid-state switches in the body slots. FA/FB flanges, LB feet and I/Y rod knuckles bolt to the standard ISO 21287 face.
Authorized Export Seller
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.
Fast Reply
Most inquiries answered within 7-8 hours.
Request a Quote for Airtac ACED Double-acting Compact Cylinder ACED125X50B
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.