This model is discontinued
AirTAC has phased out the ACP series. You can still order this code here: we ship the current replacement ACEJ12X150-40S, 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 ACPJ12X150-40S
The AirTAC ACPJ Adjustable Compact Cylinder ACPJ12X150-40S is a double acting, double rod, adjustable stroke DIN-standard tight/compact air cylinder with a Ø12mm bore and 150mm stroke, M5×0.8 air ports and a hard-anodized aluminium body. This model is discontinued — the current-production replacement is the ACEJ12X150-40S (ISO 21287 ACE), in the same bore, stroke and force class.
- BoreØ12 mm
- Stroke150 mm
- Port sizeM5×0.8
- Acting typeDouble acting, double rod, adjustable stroke
- Rod threadM3×0.5
- StatusDiscontinued → ACEJ12X150-40S
- 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 ACPJ12X150-40S
This double acting compact cylinder carries a 12 mm bore and a made-to-order 150 mm stroke with a 40 mm adjustment window, so an external stop screw trims the extend stroke anywhere in the 110-150 mm range on site. At 0.5 MPa it pushes 56.5 N and pulls 42.4 N, rising to 79.2 N at 0.7 MPa, with a fixed TPU bumper at each end. The short ISO 21287-class body saves about 50% of the mounting length of an ISO 15552 profile cylinder, which is why it slots into tight jigs and guarding where a full-length body will not fit.
Plan on roughly 34 N of usable push at 0.5 MPa (about 60% of the rating), which corresponds to lifting around 1.7 kg vertically with a 2:1 margin - enough for small clamps, gates and light part transfer. The body is hard-anodized aluminium with an S45C hard-chrome rod, the rod end is female M3x0.5, and the fitted -S magnet accepts CMSE / DMSE switches for end-of-stroke sensing. Note this model is discontinued: the current-production drop-in is the ACEJ12X150 in the same bore, stroke and force class - confirm the ISO 21287 mounting dimensions before swapping, since ACP is DIN-standard.
Airtac ACPJ Adjustable Compact Cylinder ACPJ12X150-40S Technical Specifications
| Model | Airtac ACPJ Adjustable Compact Cylinder ACPJ12X150-40S |
|---|---|
| Series | ACPJ DIN compact cylinder (discontinued) |
| Replacement | ACEJ12X150-40S |
| Bore size | Ø12 mm |
| Stroke | 150 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 ACEJ12X150-40S (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 ACPJ12X150-40S
| ACPJ | DIN compact cylinder (adjustable-stroke, discontinued). |
|---|---|
| 12 | Bore size in mm. |
| ×150 | Stroke length in mm. |
| -40 | 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 ACPJ12X150-40S Is Used
Small-part ejection from machining fixtures
The 56.5 N push at 0.5 MPa clears finished 20-40 g turned parts from a CNC jig, and the 110-150 mm adjustable range lets the operator dial the eject travel to the fixture depth without shimming.
Position-flagged gate on a compact test bench
With the -S magnet fitted, CMSE switches flag gate-open and gate-closed on an electronics test rig, while the 150 mm stroke swings a lightweight polycarbonate guard in a 60 mm deep frame.
Light push-off on a packaging lane
At 30-500 mm/s the cylinder nudges misaligned cartons off a conveyor lane; about 1.7 kg of vertical-lift equivalent covers the side-shift load, and the TPU bumpers quiet the return stroke.
Replacing the Airtac ACPJ Adjustable Compact Cylinder ACPJ12X150-40S with the ACEJ12X150-40S
Size up if 56.5 N at 0.5 MPa is marginal: the 16 mm bore delivers 100.5 N push and the 20 mm bore 157.1 N at the same pressure. Size down to a fixed-stroke ACP if you never need to trim the stroke on site. The 150 mm stroke exceeds the 50 mm standard maximum for bore 12, so it is a non-standard, made-to-order build. FA/FB flange and LB foot mountings bolt to the standard face, and the fitted -S magnet lets you add CMSE / DMSE switches. For new projects, order the ACEJ12X150 replacement instead.
Replacement checklist
- ✓ Current-production ACE → ACEJ12X150-40S
- ✓ 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 ACPJ12X150-40S FAQ
At 0.5 MPa it pushes 56.5 N and pulls 42.4 N; at 0.7 MPa it pushes 79.2 N and pulls 59.4 N; theoretical maximum is 11.5 kgf at 1.0 MPa. The -40 code is a 40 mm adjustment window: a stop screw shortens the 150 mm extend stroke on site, giving a usable 110-150 mm range. It is a mechanical end stop only - on air loss the piston still drifts, so it is not a load-holding brake. Port is M5x0.8, rod thread is female M3x0.5, and the 150 mm stroke is a made-to-order length (bore 12 standard maximum is 50 mm).
No - the ACPJ family is discontinued. The current-production drop-in is the ACEJ12X150, which swaps the P for an E and matches the same 12 mm bore, 150 mm stroke and force class on the ISO 21287 short body that saves about 50% of the mounting length of an ISO 15552 profile cylinder. Because the ACP is DIN-standard, confirm the ISO 21287 mounting dimensions before swapping. The replacement keeps the FA/FB flange and LB foot mounting family, and the -S magnet option for CMSE / DMSE switches carries over.
Related AirTAC ACE Cylinders
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