This model is discontinued
AirTAC has phased out the ACP series. You can still order this code here: we ship the current replacement ACEJ12X175-100B, 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 ACPJ12X175-100B
The AirTAC ACPJ Adjustable Compact Cylinder ACPJ12X175-100B 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 ACEJ12X175-100B (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 → ACEJ12X175-100B
- 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 ACPJ12X175-100B
This discontinued AirTAC model is a double acting compact cylinder with an adjustable extend stroke: the -100 code gives a 100 mm stop-screw window, so the 175 mm stroke can be trimmed anywhere down to 75 mm on site. The 12 mm bore delivers 56.5 N push and 42.4 N pull at 0.5 MPa (79.2 / 59.4 N at 0.7 MPa), with a theoretical maximum of 11.5 kgf at 1.0 MPa. Because the short ISO 21287-class body saves roughly 50% of the mounting length of an ISO 15552 profile cylinder, it slots into cramped fixtures where a full-length body cannot.
The 175 mm stroke is beyond the 50 mm standard maximum for bore 12, so it is a made-to-order build. At 0.5 MPa, plan on about 34 N (roughly 3.4 kg) of real work, which lifts about 1.7 kg vertically with a 2:1 margin - enough for small covers, chutes or sensor flags. The male rod thread (B code) suits knuckle accessories, and the current-production drop-in is ACEJ12X175; confirm ISO 21287 mounting dimensions before swapping, since the ACP series is DIN-standard.
Airtac ACPJ Adjustable Compact Cylinder ACPJ12X175-100B Technical Specifications
| Model | Airtac ACPJ Adjustable Compact Cylinder ACPJ12X175-100B |
|---|---|
| Series | ACPJ DIN compact cylinder (discontinued) |
| Replacement | ACEJ12X175-100B |
| 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 ACEJ12X175-100B (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 ACPJ12X175-100B
| ACPJ | DIN compact cylinder (adjustable-stroke, discontinued). |
|---|---|
| 12 | Bore size in mm. |
| ×175 | Stroke length in mm. |
| -100 | 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 ACPJ12X175-100B Is Used
Ejector on a small assembly press
The 75-175 mm trim range lets one cylinder serve several fixture heights, pushing light plastic housings off a nest with about 56.5 N at 0.5 MPa.
Flag actuator for a photoeye check
A rod-mounted flag trips a photoelectric sensor on a packaging line; with the optional -S magnet, CMSE or DMSE switches add an electrical position signal.
Lifting small gates on a lab fixture
Lifts about 1.7 kg vertically with a 2:1 margin - suited to raising a 1 kg acrylic guard or sampling gate inside a compact instrument frame.
Replacing the Airtac ACPJ Adjustable Compact Cylinder ACPJ12X175-100B with the ACEJ12X175-100B
Size both ways: if 56.5 N at 0.5 MPa is marginal, the 16 mm bore gives 100.5 N push in the same short body; if the load is lighter and space is tighter, the same 12 mm bore in a shorter standard stroke may suffice. Remember the stop screw only shortens the extend stroke - it is not a mid-stroke lock, so on air loss the piston still drifts. Mounting is FA/FB flange or LB foot, and the optional -S magnet (not fitted on this code) is what enables CMSE / DMSE switches. For new projects, order the current ACEJ12X175 instead.
Replacement checklist
- ✓ Current-production ACE → ACEJ12X175-100B
- ✓ 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 ACPJ12X175-100B FAQ
Bore 12 mm, stroke 175 mm (made to order; standard max for this bore is 50 mm), rod 6 mm, M5x0.8 ports, PT body thread, male rod thread. Push is 56.5 N and pull 42.4 N at 0.5 MPa; at 0.7 MPa push is 79.2 N and pull 59.4 N; theoretical maximum is 11.5 kgf at 1.0 MPa. Operating pressure is 0.15-1.0 MPa (22-145 psi), proof 1.5 MPa (215 psi), speed 30-500 mm/s, temperature -20 to +70 C, air filtered to 40 um.
The -100 code adds a stop screw that shortens the extend stroke by up to 100 mm, giving a usable 75-175 mm range; it cannot lengthen the stroke past 175 mm and it does not hold a load on air loss. The ACPJ family is discontinued - the current-production drop-in is ACEJ12X175 in the same bore, stroke and force class. Confirm the ISO 21287 mounting dimensions before swapping, because the ACP series is DIN-standard.
Related AirTAC ACE Cylinders
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