Airtac ACED Double-acting Compact Cylinder ACED20X25S
The AirTAC Airtac ACED Double-acting Compact Cylinder ACED20X25S is a genuine double acting, double rod ISO 21287 compact air cylinder with a Ø20mm bore and 25mm stroke, M5×0.8 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.
- BoreØ20 mm
- Stroke25 mm
- Port sizeM5×0.8
- Acting typeDouble acting, double rod
- Rod threadM6×1.0
- 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 ACED20X25S
The ACED20X25S is a double acting, double-rod compact cylinder built to the ISO 21287 short-body format: a 20 mm bore with a 25 mm stroke, a 10 mm hard-chrome-plated S45C rod exiting BOTH covers, and an M5x0.8 air port. Because each side of the piston sees the rod-side area, output force is equal in both directions - 117.8 N at 0.5 MPa and 164.9 N at 0.7 MPa whichever way it moves. The hard-anodized aluminium body with roller-burnished bore and threaded aluminium covers keeps the footprint tight: about 50% shorter in mounting length than an ISO 15552 profile cylinder, so it slots into cramped jigs and guarding where a full-length body cannot go.
The through-rod does more than push both ways. It resists rotation and moderate side load, gives a symmetric mounting point at each end, and lets the rear rod carry a sensor flag or a second tooling plate. A fixed TPU bumper at each end absorbs end-of-stroke shock. For positioning, the fitted -S magnet works with CMSE / DMSE reed or solid-state switches anywhere along the body slots. As a planning figure, treat roughly 70 N (about 60% of the 117.8 N rating) as usable work force at 0.5 MPa, or match it to a real part: this cylinder lifts about 6 kg vertically with a 2:1 margin. Speed range is 30-500 mm/s at 0.15-1.0 MPa (22-145 psi).
Airtac ACED Double-acting Compact Cylinder ACED20X25S Technical Specifications
| Model | Airtac ACED Double-acting Compact Cylinder ACED20X25S |
|---|---|
| Series | ACED compact cylinder |
| Standard | ISO 21287 |
| Bore size | Ø20 mm |
| Stroke | 25 mm |
| Acting type | Double acting, double rod |
| Port size | M5×0.8 |
| Rod thread | M6×1.0 |
| 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 100 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 (Ø20mm)
| Pressure | Force (both ways) |
|---|---|
| 0.5 MPa | 118 N |
| 0.7 MPa | 165 N |
| Max (@1.0 MPa) | 24 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 ACED20X25S
| ACED | ISO 21287 compact cylinder (double-rod). |
|---|---|
| 20 | Bore size in mm. |
| ×25 | 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 ACED20X25S Is Used
Pick-and-place on a compact PCB handling gantry
The 25 mm stroke and short ISO 21287 body fit between fixture rails on an electronics assembly line, while the through-rod keeps the gripper plate from rotating as it lifts boards weighing under 6 kg.
Sample press in a laboratory testing station
Equal 117.8 N force in both directions lets the same cylinder clamp a specimen down and retract the platen cleanly, with the -S magnet and a DMSE switch confirming home position between tests.
Carton flap tucker on a small packaging machine
A rear-rod sensor flag on the back end of the through-rod drives a CMSE switch for cycle counting, and the TPU bumpers quiet the 30-500 mm/s tuck motion at both ends of travel.
Is the Airtac ACED Double-acting Compact Cylinder ACED20X25S the Right Cylinder?
Size both ways before committing. If your load is light, the ACED16X25S delivers 75.4 N at 0.5 MPa on an 8 mm rod; if you need more muscle, step up to the ACED25X25S at 206.2 N. The 20 mm bore sits in the middle at 117.8 N, equal in push and pull thanks to the double rod. Note that this cylinder will not hold a load if air pressure is lost - the piston drifts - so add a rod lock or pilot check valve for a held position.
Mounting bolts straight to the ISO 21287 face: FA/FB flange, LB foot, FTC bracket, plus I and Y rod knuckles. The -S magnet is already fitted on this model, so order CMSE or DMSE switches separately to match your PLC input. Rod end is female M6x1.0; choose the B code variant if you need a male thread.
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 ACED20X25S FAQ
Yes - the double-rod design means a rod exits both covers, so both strokes use the rod-side area and force is equal either way: 117.8 N at 0.5 MPa, 164.9 N at 0.7 MPa, with a maximum of 24.0 kgf at 1.0 MPa. Operating pressure is 0.15-1.0 MPa (22-145 psi), proof pressure 1.5 MPa (215 psi), speed 30-500 mm/s, and the air supply should be filtered to 40 um.
The ISO 21287 short body saves about 50% of the mounting length of an ISO 15552 profile cylinder, so the 20 mm bore fits tight gantries and fixtures. This model carries the optional -S magnet, so CMSE / DMSE reed or solid-state switches can be slid into the body slots for end-of-stroke or mid-stroke detection. A fixed TPU bumper at each end absorbs end-of-stroke impact, and FA/FB flange, LB foot and FTC mounts plus I/Y rod knuckles bolt straight to the standard face.
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