This model is discontinued
AirTAC has phased out the ACP series. You can still order this code here: we ship the current replacement ACEJ20X25-10, 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 ACPJ Adjustable Compact Cylinder ACPJ20X25-10
The AirTAC ACPJ Adjustable Compact Cylinder ACPJ20X25-10 is a double acting, double rod, adjustable stroke 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 ACEJ20X25-10 (ISO 21287 ACE), in the same bore, stroke and force class.
- BoreØ20 mm
- Stroke25 mm
- Port sizeM5×0.8
- Acting typeDouble acting, double rod, adjustable stroke
- Rod threadM6×1.0
- StatusDiscontinued → ACEJ20X25-10
- 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 ACPJ Adjustable Compact Cylinder ACPJ20X25-10
Double acting and adjustable, the ACPJ20X25-10 is a discontinued DIN-standard compact cylinder with a 20 mm bore and 25 mm stroke. Its external stop screw trims the extend stroke by up to 10 mm, giving a usable range of 15-25 mm on site. At 0.5 MPa it pushes 157.1 N and pulls 117.8 N; at 0.7 MPa those figures rise to 219.9 N and 164.9 N. The short ISO 21287-class body saves roughly 50% of the mounting length of an ISO 15552 profile cylinder, so it slots into cramped jigs and guarding where a full-length body will not fit.
The hard-anodized aluminium body carries a 10 mm S45C hard-chrome rod with a female M6x1.0 thread, M5x0.8 ports, fixed TPU bumpers at both ends and a speed band of 30-500 mm/s. No magnet is fitted on this code; order the optional -S version if you need CMSE / DMSE switch sensing. This model is discontinued - the current-production direct is the ACEJ20X25, so confirm ISO 21287 mounting dimensions before swapping.
Airtac ACPJ Adjustable Compact Cylinder ACPJ20X25-10 Technical Specifications
| Model | Airtac ACPJ Adjustable Compact Cylinder ACPJ20X25-10 |
|---|---|
| Series | ACPJ DIN compact cylinder (discontinued) |
| Replacement | ACEJ20X25-10 |
| Bore size | Ø20 mm |
| Stroke | 25 mm |
| Acting type | Double acting, double rod, adjustable stroke |
| 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 ACEJ20X25-10 (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 |
ACPJ is double-rod: the rear rod that carries the stroke adjuster exits the rear cover, so both piston faces lose rod area. The rod-side (annular) area is used for both directions (conservative).
Model Code: Airtac ACPJ Adjustable Compact Cylinder ACPJ20X25-10
| ACPJ | DIN compact cylinder (adjustable-stroke, discontinued). |
|---|---|
| 20 | Bore size in mm. |
| ×25 | Stroke length in mm. |
| -10 | Adjustable stroke window (mm the extend stroke can be shortened on site). |
| 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 ACPJ Adjustable Compact Cylinder ACPJ20X25-10 Is Used
Carton kick-off on packing lines
A short 25 mm stroke with a 10 mm trim range nudges cartons off infeed conveyors; the compact body fits under low guarding frames.
Sample press in lab automation
About 9 kg of vertical lift at 0.5 MPa suits pressing vials or sensor caps in small diagnostic instruments where space is tight.
Replacing the Airtac ACPJ Adjustable Compact Cylinder ACPJ20X25-10 with the ACEJ20X25-10
At 20 mm bore this sits mid-range: the 16 mm bore pushes 100.5 N at 0.5 MPa, while the 25 mm class above it gives noticeably more thrust - step up if your load needs more than about 94 N of usable force. The -10 window suits fixtures where the final position varies by a few millimetres between product variants; remember the stop only shortens the extend stroke and drifts on air loss, so it is not a load-holding brake. Match FA/FB flange or LB foot hardware to the ISO 21287 face, and add the -S code only if CMSE / DMSE sensing is required. For new builds, specify the ACEJ20X25 instead - this ACPJ model is discontinued.
Replacement checklist
- ✓ Current-production ACE → ACEJ20X25-10
- ✓ Same bore / stroke / force class
- ✓ Confirm ISO 21287 mounting dimensions
- ✓ Port/thread type (PT / G)
- ✓ Add -S for magnet if you need sensors
Airtac ACPJ Adjustable Compact Cylinder ACPJ20X25-10 FAQ
Push is 157.1 N and pull 117.8 N at 0.5 MPa; at 0.7 MPa push is 219.9 N and pull 164.9 N, with a theoretical maximum of 32 kgf at 1.0 MPa. It runs double acting on air filtered to 40 um at 0.15-1.0 MPa (22-145 psi), proof pressure 1.5 MPa (215 psi), temperature -20 to +70 C, speed 30-500 mm/s, with M5x0.8 ports and a female M6x1.0 rod thread.
The -10 code sets a 10 mm window: an external stop screw shortens the 25 mm extend stroke anywhere down to 15 mm, but it cannot lengthen it and it does not hold a load if air is lost. Fixed TPU bumpers decelerate at both ends. The ACPJ family is discontinued; the ACEJ20X25 is the current ISO 21287 direct - confirm its mounting dimensions before swapping.
Related AirTAC ACE Cylinders
Request a Quote for the ACEJ20X25-10
Send us the quantity and destination. We confirm price, stock and lead time on the ACEJ20X25-10 replacement — usually within 7-8 hours.