This model is discontinued
AirTAC has phased out the ACP series. You can still order this code here: we ship the current replacement ACEJ12X175-30SB, 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 ACPJ12X175-30SB
The AirTAC ACPJ Adjustable Compact Cylinder ACPJ12X175-30SB 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 ACEJ12X175-30SB (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 → ACEJ12X175-30SB
- 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 ACPJ12X175-30SB
The ACPJ12X175-30SB is a double acting compact cylinder with an adjustable extend stroke: the -30 stop screw trims the 175 mm stroke down to 145 mm on site, so one cylinder covers a 145-175 mm working range. Air pushes the rod out and pulls it back, delivering 56.5 N push and 42.4 N pull at 0.5 MPa, rising to 79.2 N push at 0.7 MPa. The 175 mm stroke is longer than the 50 mm standard maximum for a 12 mm bore, so this unit is made to order. Note this model is discontinued; the current-production replacement is the ACEJ12X175 in the same bore, stroke and force class.
The short ISO 21287-class body saves about 50% of the mounting length of an ISO 15552 profile cylinder, which is why it suits slim fixtures and tight gantries. The hard-anodized aluminium body carries a fixed TPU bumper at each end, and the S45C hard-chrome rod ends in a male thread (B code). Because the S code is ordered, the magnet is fitted and CMSE / DMSE reed or solid-state switches can be mounted directly. In practice, plan on roughly 34 N of usable push at 0.5 MPa (about 60% of rating), which lifts around 3 kg vertically - enough for small covers, sensors or light parts in test rigs.
Airtac ACPJ Adjustable Compact Cylinder ACPJ12X175-30SB Technical Specifications
| Model | Airtac ACPJ Adjustable Compact Cylinder ACPJ12X175-30SB |
|---|---|
| Series | ACPJ DIN compact cylinder (discontinued) |
| Replacement | ACEJ12X175-30SB |
| 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 ACEJ12X175-30SB (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 ACPJ12X175-30SB
| ACPJ | DIN compact cylinder (adjustable-stroke, discontinued). |
|---|---|
| 12 | Bore size in mm. |
| ×175 | Stroke length in mm. |
| -30 | 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 ACPJ12X175-30SB Is Used
Lab test station ejection
Ejects small sample trays from a test fixture; the 145-175 mm adjustable range lets technicians fine-tune the push-off point without changing cylinders.
Vision inspection gate
Swings or lifts a light gate arm on a compact camera-check station; the fitted magnet with a CMSE switch confirms extend and retract positions in a tight envelope.
Small-parts press-off
Presses nylon bushings off a mandrel in an electronics assembly cell, using about 34 N of usable force at 0.5 MPa for repeatable light-duty ejection.
Replacing the Airtac ACPJ Adjustable Compact Cylinder ACPJ12X175-30SB with the ACEJ12X175-30SB
At 12 mm bore this is the smallest ACPJ size: 56.5 N push at 0.5 MPa. If your load needs more, step up to the 16 mm bore (100.5 N push at 0.5 MPa) or the 20 mm bore (157.1 N). Keep the 30 mm window only if your stroke genuinely varies between 145 and 175 mm; a fixed-stroke ACE would be simpler. The stop screw trims the extend stroke but is not a mid-stroke lock - the piston still drifts if air is lost. FA/FB flange and LB foot mountings bolt to the standard face, and the male rod thread (B) suits external knuckles. Order the ACEJ12X175 as the current drop-in and confirm ISO 21287 mounting dimensions before swapping, since the ACP series is DIN-standard.
Replacement checklist
- ✓ Current-production ACE → ACEJ12X175-30SB
- ✓ 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 ACPJ12X175-30SB FAQ
At 0.5 MPa it pushes 56.5 N and pulls 42.4 N; at 0.7 MPa push is 79.2 N and pull 59.4 N, with a theoretical maximum of 11.5 kgf at 1.0 MPa. The base stroke is 175 mm and the -30 stop screw trims the extend stroke by up to 30 mm, giving a usable 145-175 mm range. The 175 mm stroke is a made-to-order length because the standard maximum for a 12 mm bore is 50 mm. Operating pressure is 0.15-1.0 MPa (22-145 psi) and speed is 30-500 mm/s.
The short ISO 21287-class aluminium body saves about 50% of the mounting length of an ISO 15552 profile cylinder, with a hard-anodized barrel, an S45C hard-chrome rod and a fixed TPU bumper at each end. The B code gives a male rod thread, and the S code means the magnet is fitted on this model, so CMSE / DMSE switches can be added. This ACPJ is discontinued - order the ACEJ12X175 as the current replacement and confirm ISO 21287 mounting dimensions first.
Related AirTAC ACE Cylinders
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Send us the quantity and destination. We confirm price, stock and lead time on the ACEJ12X175-30SB replacement — usually within 7-8 hours.