This model is discontinued
AirTAC has phased out the ACP series. You can still order this code here: we ship the current replacement ACEJ12X175-20, 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 ACPJ12X175-20
The AirTAC ACPJ Adjustable Compact Cylinder ACPJ12X175-20 is a double acting, double rod, adjustable stroke DIN-standard tight/compact air cylinder with a Ø12mm bore and 175mm stroke, M5×0.8 air ports and a hard-anodized aluminium body. This model is discontinued — the current-production replacement is the ACEJ12X175-20 (ISO 21287 ACE), in the same bore, stroke and force class.
- BoreØ12 mm
- Stroke175 mm
- Port sizeM5×0.8
- Acting typeDouble acting, double rod, adjustable stroke
- Rod threadM3×0.5
- StatusDiscontinued → ACEJ12X175-20
- 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 ACPJ12X175-20
This double acting compact cylinder from AirTAC's ACPJ line works on a 12 mm bore with a 175 mm stroke and a 20 mm adjustment window: an external stop screw trims the extend stroke anywhere in a 155-175 mm range on site. At 0.5 MPa it delivers 56.5 N of push and 42.4 N of pull, rising to 79.2 N at 0.7 MPa. The 175 mm stroke is longer than the 50 mm standard maximum for this bore, so it is a made-to-order build. The ACPJ family is discontinued; the current-production replacement is the ACEJ12X175 in the same bore, stroke and force class.
The short ISO 21287-class body saves roughly 50% of the mounting length of an ISO 15552 profile cylinder, which is why it suits slim slides, guarding gates and fixture clamps. In practice, plan on about 34 N of usable push at 0.5 MPa, which lifts roughly 2.9 kg vertically with a 2:1 margin. The hard-anodized aluminium body carries an S45C hard-chrome rod, fixed TPU bumpers sit at both ends, and speed runs 30-500 mm/s. No magnet is fitted on this code, so position sensing is unavailable unless the -S variant is ordered.
Airtac ACPJ Adjustable Compact Cylinder ACPJ12X175-20 Technical Specifications
| Model | Airtac ACPJ Adjustable Compact Cylinder ACPJ12X175-20 |
|---|---|
| Series | ACPJ DIN compact cylinder (discontinued) |
| Replacement | ACEJ12X175-20 |
| Bore size | Ø12 mm |
| Stroke | 175 mm |
| Acting type | Double acting, double rod, adjustable stroke |
| Port size | M5×0.8 |
| Rod thread | M3×0.5 |
| 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 50 mm |
Specifications follow the official AirTAC ACP datasheet (now discontinued). The ACEJ12X175-20 (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 (Ø12mm)
| Pressure | Force (both ways) |
|---|---|
| 0.5 MPa | 42 N |
| 0.7 MPa | 59 N |
| Max (@1.0 MPa) | 9 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 ACPJ12X175-20
| ACPJ | DIN compact cylinder (adjustable-stroke, discontinued). |
|---|---|
| 12 | Bore size in mm. |
| ×175 | Stroke length in mm. |
| -20 | 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 ACPJ12X175-20 Is Used
PCB fixture clamping
The 56.5 N push at 0.5 MPa seats small circuit boards into a test nest, and the 155-175 mm adjustable range lets technicians fine-tune the press depth without re-plumbing.
Gate latch on a compact guard
With a body about 50% shorter than an ISO 15552 profile cylinder, it latches slim machine guards where a full-length actuator would not fit behind the panel.
Small-part ejector on an assembly bench
Pushing finished bushings off a fixture, the 12 mm bore lifts about 2.9 kg vertically with margin, and the M5x0.8 ports keep the manifold footprint tiny.
Replacing the Airtac ACPJ Adjustable Compact Cylinder ACPJ12X175-20 with the ACEJ12X175-20
At 56.5 N push (0.5 MPa) this bore 12 unit handles light clamping and part-presenting duty; step up to the 16 mm bore (100.5 N push) if the load needs roughly double the force, or drop to a smaller actuator only if the 12 mm class is already oversized. Remember the stop screw is a mechanical end stop for the extend stroke, not a mid-stroke lock, so the rod can drift if air is lost. FA/FB flange and LB foot mounts bolt to the ISO 21287 face, and the optional -S magnet enables CMSE / DMSE switches. Since ACPJ is discontinued, order the ACEJ12X175 as the drop-in successor and confirm the ISO 21287 mounting dimensions before the swap.
Replacement checklist
- ✓ Current-production ACE → ACEJ12X175-20
- ✓ 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 ACPJ12X175-20 FAQ
Push is 56.5 N and pull is 42.4 N at 0.5 MPa; at 0.7 MPa push rises to 79.2 N and pull to 59.4 N, with a theoretical maximum of 11.5 kgf at 1.0 MPa. The -20 code gives a 20 mm adjustment window, so the extend stroke can be trimmed anywhere between 155 and 175 mm with the external stop screw. Operating pressure is 0.15-1.0 MPa (22-145 psi), speed is 30-500 mm/s, and the 175 mm stroke is a made-to-order length above the 50 mm standard maximum for this bore.
It is a short-body ISO 21287-class actuator with a hard-anodized aluminium body, an S45C hard-chrome rod on a 6 mm piston rod, M5x0.8 ports, a female M3x0.5 rod thread and fixed TPU bumpers at both ends. The stop screw only shortens the extend stroke; it does not hold a load if air is lost. No magnet is included on this code, so CMSE / DMSE switches require the optional -S version. The ACPJ line is discontinued: the current drop-in is the ACEJ12X175, and buyers should confirm the ISO 21287 mounting dimensions before swapping.
Related AirTAC ACE Cylinders
Request a Quote for the ACEJ12X175-20
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