This model is discontinued
AirTAC has phased out the ACP series. You can still order this code here: we ship the current replacement ACEJ12X150-20SB, 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 ACPJ12X150-20SB
The AirTAC ACPJ Adjustable Compact Cylinder ACPJ12X150-20SB 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 ACEJ12X150-20SB (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 → ACEJ12X150-20SB
- 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 ACPJ12X150-20SB
This double acting compact cylinder carries the -S magnet and a male rod thread on a 12 mm bore with a 150 mm made-to-order stroke. The -20 code gives a 20 mm adjustment window, so an external stop screw trims the extend stroke anywhere in a 130-150 mm range on site. At 0.5 MPa it pushes 56.5 N and pulls 42.4 N; at 0.7 MPa those figures rise to 79.2 N and 59.4 N, with a theoretical maximum of 11.5 kgf at 1.0 MPa. The short ISO 21287-class body saves roughly 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 cannot.
Plan on about 34 N (roughly 3.5 kgf) of real work at 0.5 MPa rather than the full rating, and expect it to lift about 2.9 kg vertically with a 2:1 margin. The hard-anodized aluminium body pairs with an S45C hard-chrome rod and fixed TPU bumpers at both ends, running 30-500 mm/s on air filtered to 40 um at 0.15-1.0 MPa (22-145 psi). Note that this model is discontinued: the current-production replacement is ACEJ12X150, so confirm ISO 21287 mounting dimensions before swapping, since the ACP family was built to a DIN-standard footprint.
Airtac ACPJ Adjustable Compact Cylinder ACPJ12X150-20SB Technical Specifications
| Model | Airtac ACPJ Adjustable Compact Cylinder ACPJ12X150-20SB |
|---|---|
| Series | ACPJ DIN compact cylinder (discontinued) |
| Replacement | ACEJ12X150-20SB |
| 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 ACEJ12X150-20SB (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 ACPJ12X150-20SB
| ACPJ | DIN compact cylinder (adjustable-stroke, discontinued). |
|---|---|
| 12 | Bore size in mm. |
| ×150 | 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 ACPJ12X150-20SB Is Used
Position-flagged ejector on a small assembly station
The fitted -S magnet lets a CMSE switch confirm the trimmed 130-150 mm extend position, while the stop screw dials the push-off travel to clear a 40 mm-deep fixture pocket.
Light clamp on a PCB test fixture
About 34 N of usable force at 0.5 MPa is enough to hold a circuit board against locating pins, and the short body fits inside the fixture lid where a full-length cylinder will not.
Sample pusher in a compact lab analyzer
The male rod thread drives a small slide that advances a sample vial about 2.9 kg equivalent vertical load, with the M5x0.8 ports keeping tubing runs tidy in tight panels.
Replacing the Airtac ACPJ Adjustable Compact Cylinder ACPJ12X150-20SB with the ACEJ12X150-20SB
At 12 mm bore this is the smallest force class in the range: the 16 mm bore pushes 100.5 N at 0.5 MPa and the 20 mm bore reaches 157.1 N, so step up if 56.5 N is marginal for your load. The stop screw only shortens the extend stroke within the 20 mm window and drifts on air loss, so it is not a mid-stroke lock for holding a load. FA/FB flange and LB foot mountings bolt to the standard face, and because the -S magnet is fitted on this unit, CMSE or DMSE switches can be added directly. Order ACEJ12X150 as the current drop-in successor.
Replacement checklist
- ✓ Current-production ACE → ACEJ12X150-20SB
- ✓ 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 ACPJ12X150-20SB 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 -20 code sets a 20 mm adjustment window: an external stop screw shortens the 150 mm extend stroke, giving a usable 130-150 mm range. The 150 mm stroke is non-standard for this 12 mm bore (standard tops out at 50 mm), so it is made to order. The stop is a mechanical end stop only and does not hold a load if air is lost.
No - the ACPJ family is discontinued. The current-production drop-in is ACEJ12X150, which matches the same 12 mm bore, 150 mm stroke and force class in the ISO 21287 short-body format. Because the ACP was built to a DIN-standard footprint, confirm the ISO 21287 mounting dimensions against your fixture before ordering. This unit carries the optional -S magnet for CMSE / DMSE switches, a male rod thread, PT ports at M5x0.8, and fixed TPU bumpers at both ends.
Related AirTAC ACE Cylinders
Request a Quote for the ACEJ12X150-20SB
Send us the quantity and destination. We confirm price, stock and lead time on the ACEJ12X150-20SB replacement — usually within 7-8 hours.