This model is discontinued
AirTAC has phased out the ACP series. You can still order this code here: we ship the current replacement ACED20X25SB, the same code under the new prefix. The ACE replacement is a current-production ISO 21287 compact cylinder in the same bore, stroke and force class, with a matching short body and the same mounting-accessory family, so it fits the same envelope. Confirm mounting-interface dimensions against the ACE datasheet before ordering.
Airtac ACPD Double Rod Compact Cylinder ACPD20X25SB
The AirTAC ACPD Double Rod Compact Cylinder ACPD20X25SB is a double acting, double rod DIN-standard tight/compact air cylinder with a Ø20mm bore and 25mm stroke, M5×0.8 air ports and a hard-anodized aluminium body. This model is discontinued — the current-production replacement is the ACED20X25SB (ISO 21287 ACE), in the same bore, stroke and force class.
- BoreØ20 mm
- Stroke25 mm
- Port sizeM5×0.8
- Acting typeDouble acting, double rod
- Rod threadM6×1.0
- StatusDiscontinued → ACED20X25SB
- 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 ACPD Double Rod Compact Cylinder ACPD20X25SB
A double acting, double-rod compact cylinder, the ACPD20X25SB pushes a piston rod out of both covers of its 20 mm bore body, so the 25 mm stroke delivers an equal 117.8 N in each direction at 0.5 MPa (164.9 N at 0.7 MPa) because both strokes work on the rod-side area. The through-rod resists rotation and side load, gives a symmetric mount, and the rear rod can carry a sensor flag. This model carries the optional -S magnet, so CMSE or DMSE reed and solid-state switches can be fitted for end-of-stroke detection.
The short ISO 21287-class body saves about 50% of the mounting length of an ISO 15552 profile cylinder, which is why it suits tight jigs and gantries. A fixed TPU bumper sits at both ends and the hard-anodized aluminium body carries an S45C hard-chrome rod. Note that this model is discontinued: the current-production direct is the ACED20X25, so confirm the ISO 21287 mounting dimensions before swapping.
Airtac ACPD Double Rod Compact Cylinder ACPD20X25SB Technical Specifications
| Model | Airtac ACPD Double Rod Compact Cylinder ACPD20X25SB |
|---|---|
| Series | ACPD DIN compact cylinder (discontinued) |
| Replacement | ACED20X25SB |
| 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 bumper (both ends) |
| Max standard stroke | Up to 100 mm |
Specifications follow the official AirTAC ACP datasheet (now discontinued). The ACED20X25SB (ISO 21287) carries the same bore/stroke/force class; confirm mounting-interface dimensions against the ACE datasheet before installation. Rod type: female thread (blank) or male thread (B). Thread options: PT (blank) / G.
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 ACPD Double Rod Compact Cylinder ACPD20X25SB
| ACPD | DIN compact cylinder (double-rod, discontinued). |
|---|---|
| 20 | Bore size in mm. |
| ×25 | Stroke length in mm. |
| S | Optional built-in magnet for sensor position sensing (omit for no magnet). |
| B | Rod type: B = male thread; blank = female thread. |
Replacement mapping (swap P for E): ACP→ACE, ASP→ASE, ATP→ATE, ACPD→ACED, ACPJ→ACEJ. ACP-family: ACP (double acting), ASP / ATP (single acting push / pull), ACPD (double rod), ACPJ (double rod, adjustable stroke).
Where the Airtac ACPD Double Rod Compact Cylinder ACPD20X25SB Is Used
Fixture clamping on a CNC jig
The 117.8 N through-rod clamps small aluminium brackets from both sides of a machining jig, and the 25 mm stroke fits the shallow pocket between vices.
Position-flagged parts ejector
With the -S magnet already fitted, CMSE or DMSE switches confirm each 25 mm eject stroke on a small electronics assembly station.
Symmetric push-pull transfer
Equal force both ways lets a packaging line push a tray forward and retract it with the same 117.8 N, using the rear rod as a guide or flag mount.
Replacing the Airtac ACPD Double Rod Compact Cylinder ACPD20X25SB with the ACED20X25SB
At 117.8 N per side at 0.5 MPa, the 20 mm bore suits light clamping and transfer work; step down to the 16 mm bore (75.4 N) for smaller loads or up to the 25 mm bore (206.2 N) when more force is needed. Like any plain double-rod cylinder it will drift if air is lost, so add a rod lock or pilot check where a load must be held. The male rod thread (B code) and PT ports are standard here, and this unit already includes the -S magnet for CMSE / DMSE switches. The ACED20X25 is the current replacement.
Replacement checklist
- ✓ Current-production ACE → ACED20X25SB
- ✓ Same bore / stroke / force class
- ✓ Confirm ISO 21287 mounting dimensions
- ✓ Port/thread type (PT / G)
- ✓ Add -S for magnet if you need sensors
Airtac ACPD Double Rod Compact Cylinder ACPD20X25SB FAQ
Because a rod exits both covers, output is equal both ways: 117.8 N at 0.5 MPa and 164.9 N at 0.7 MPa, peaking at 24.0 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, with a fixed TPU bumper at each end. The model is discontinued and replaced by the ACED20X25.
The short ISO 21287-class body saves about 50% of the mounting length of an ISO 15552 profile cylinder, so it fits tight guards and fixtures. This -S version carries the magnet, so CMSE / DMSE reed or solid-state switches mount directly on the 20 mm bore body. FA/FB flange and LB foot mountings are available, and the male rod thread takes standard I/Y knuckles.
Related AirTAC ACE Cylinders
Request a Quote for the ACED20X25SB
Send us the quantity and destination. We confirm price, stock and lead time on the ACED20X25SB replacement — usually within 7-8 hours.