This model is discontinued
AirTAC has phased out the ACP series. You can still order this code here: we ship the current replacement ACEJ12X120-75SB, 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 ACPJ12X120-75SB
The AirTAC ACPJ Adjustable Compact Cylinder ACPJ12X120-75SB is a double acting, double rod, adjustable stroke DIN-standard tight/compact air cylinder with a Ø12mm bore and 120mm stroke, M5×0.8 air ports and a hard-anodized aluminium body. This model is discontinued — the current-production replacement is the ACEJ12X120-75SB (ISO 21287 ACE), in the same bore, stroke and force class.
- BoreØ12 mm
- Stroke120 mm
- Port sizeM5×0.8
- Acting typeDouble acting, double rod, adjustable stroke
- Rod threadM3×0.5
- StatusDiscontinued → ACEJ12X120-75SB
- 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 ACPJ12X120-75SB
This is a double acting, adjustable-stroke compact cylinder in the discontinued ACPJ family, built on a hard-anodized aluminium body with an S45C hard-chrome 6 mm rod. The -75 code gives a 75 mm trim window: a stop screw shortens the 120 mm extend stroke on site, so the usable range is 45-120 mm. At 0.5 MPa the bore 12 delivers 56.5 N push and 42.4 N pull; at 0.7 MPa that rises to 79.2 N push. The short ISO 21287-class body saves about 50% of the mounting length of an ISO 15552 profile cylinder, which is why it fits tight jigs and guards. Note the 120 mm stroke exceeds the 50 mm standard maximum for bore 12, so it is a made-to-order stroke.
For sizing real work, plan on roughly 34 N of usable force at 0.5 MPa (about 60% of the rated push), which translates to lifting about 2.9 kg vertically with a 2:1 margin. The S code means the magnet is fitted, so CMSE / DMSE reed or solid-state switches can be mounted directly on the body. Fixed TPU bumpers sit at both ends, speed runs 30-500 mm/s, and pressure spans 0.15-1.0 MPa (22-145 psi). This model is discontinued; the current-production replacement is the ACEJ12X120, so confirm ISO 21287 mounting dimensions before swapping.
Airtac ACPJ Adjustable Compact Cylinder ACPJ12X120-75SB Technical Specifications
| Model | Airtac ACPJ Adjustable Compact Cylinder ACPJ12X120-75SB |
|---|---|
| Series | ACPJ DIN compact cylinder (discontinued) |
| Replacement | ACEJ12X120-75SB |
| Bore size | Ø12 mm |
| Stroke | 120 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 ACEJ12X120-75SB (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 ACPJ12X120-75SB
| ACPJ | DIN compact cylinder (adjustable-stroke, discontinued). |
|---|---|
| 12 | Bore size in mm. |
| ×120 | Stroke length in mm. |
| -75 | 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 ACPJ12X120-75SB Is Used
Multi-part-length ejection in PCB test fixtures
The 45-120 mm trim range lets one cylinder eject different board sizes; the fitted magnet feeds CMSE switch signals back to the tester at each end position.
Small-part push-off on watch and electronics assembly benches
About 34 N of usable push at 0.5 MPa is enough to clear 2-3 kg components from a nest, and the short body slots under low fixture plates.
Position-verified sliding doors on lab enclosures
DMSE solid-state switches on the magnet confirm open/closed status, while the 6 mm male-thread rod drives a lightweight door link at 30-500 mm/s.
Replacing the Airtac ACPJ Adjustable Compact Cylinder ACPJ12X120-75SB with the ACEJ12X120-75SB
At bore 12 you get 56.5 N push at 0.5 MPa - the lightest force class in the family. If your load needs more, step up to bore 16 (100.5 N push at 0.5 MPa) or bore 20 (157.1 N). The 75 mm adjust window suits stations where one cylinder serves several part lengths; remember the stop only trims the extend stroke and does not hold a load if air is lost. The male rod thread (B code) pairs with I/Y knuckles, and FA flange or LB foot mounts bolt to the ISO 21287 face. Because the 120 mm stroke is non-standard for bore 12, order it as a made-to-order item or specify the ACEJ12X120, the current drop-in successor.
Replacement checklist
- ✓ Current-production ACE → ACEJ12X120-75SB
- ✓ 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 ACPJ12X120-75SB FAQ
Bore 12 mm, stroke 120 mm (non-standard, made to order, since the bore 12 standard maximum is 50 mm), rod 6 mm with male thread, M5x0.8 port. 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 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 -75 window trims the extend stroke to any length from 45 to 120 mm.
No - the ACPJ family is discontinued. The current-production replacement is the ACEJ12X120, which keeps the same bore, stroke and force class in an ISO 21287 short body. Because the ACPJ was built to a DIN-standard footprint, confirm the ISO 21287 mounting dimensions against your fixture before swapping. The ACEJ also accepts FA/FB flange and LB foot mounts, and with the -S option carries the magnet for CMSE / DMSE switches, matching what this model already has.
Related AirTAC ACE Cylinders
Request a Quote for the ACEJ12X120-75SB
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