This model is discontinued
AirTAC has phased out the ACP series. You can still order this code here: we ship the current replacement ACEJ12X35-30SB, 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 ACPJ12X35-30SB
The AirTAC ACPJ Adjustable Compact Cylinder ACPJ12X35-30SB is a double acting, double rod, adjustable stroke DIN-standard tight/compact air cylinder with a Ø12mm bore and 35mm stroke, M5×0.8 air ports and a hard-anodized aluminium body. This model is discontinued — the current-production replacement is the ACEJ12X35-30SB (ISO 21287 ACE), in the same bore, stroke and force class.
- BoreØ12 mm
- Stroke35 mm
- Port sizeM5×0.8
- Acting typeDouble acting, double rod, adjustable stroke
- Rod threadM3×0.5
- StatusDiscontinued → ACEJ12X35-30SB
- 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 ACPJ12X35-30SB
Double acting and adjustable in stroke, the ACPJ12X35-30SB is a discontinued DIN-standard compact cylinder with a 12 mm bore and a 35 mm stroke that an external stop screw trims anywhere within a 30 mm window, giving a usable extend range of 5-35 mm. Air pushes the rod out with 56.5 N and pulls it back with 42.4 N at 0.5 MPa; at 0.7 MPa those figures rise to 79.2 N and 59.4 N. The hard-anodized aluminium body is an ISO 21287-class short build that saves about 50% of the mounting length of an ISO 15552 profile cylinder, so it slots into tight jigs and guarding where a full-length body will not fit.
For sizing, plan on roughly 34 N of real work at 0.5 MPa (about 0.6 of the push rating), which is enough to lift about 2.9 kg vertically with a 2:1 margin. The S code on this model means the optional -S magnet is fitted, so CMSE / DMSE reed or solid-state switches can be clamped straight onto the body for end-of-stroke signals. This model is discontinued: the current-production drop-in is the ACEJ12X35, same bore, stroke and force class - confirm the ISO 21287 mounting dimensions before swapping, since the ACP series was built to DIN.
Airtac ACPJ Adjustable Compact Cylinder ACPJ12X35-30SB Technical Specifications
| Model | Airtac ACPJ Adjustable Compact Cylinder ACPJ12X35-30SB |
|---|---|
| Series | ACPJ DIN compact cylinder (discontinued) |
| Replacement | ACEJ12X35-30SB |
| Bore size | Ø12 mm |
| Stroke | 35 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 ACEJ12X35-30SB (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 ACPJ12X35-30SB
| ACPJ | DIN compact cylinder (adjustable-stroke, discontinued). |
|---|---|
| 12 | Bore size in mm. |
| ×35 | 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 ACPJ12X35-30SB Is Used
Small-part ejection from fixtures
The 56.5 N push at 0.5 MPa nudges machined pins or stamped clips off a jig, and the 5-35 mm trimmed stroke keeps the ejector travel matched to shallow pockets.
Position-verified clamping on test benches
With the -S magnet fitted, CMSE or DMSE switches confirm the rod has reached the trimmed stop before a lab fixture releases the part.
Light press-fitting of connectors
About 34 N of usable work at 0.5 MPa seats small terminals or bushings in electronics assemblies without crushing delicate housings.
Replacing the Airtac ACPJ Adjustable Compact Cylinder ACPJ12X35-30SB with the ACEJ12X35-30SB
At 12 mm bore this is the smallest force class in the family: 56.5 N push at 0.5 MPa. Step up to the 16 mm bore for 100.5 N push at the same pressure, or drop to a direct ACEJ12X35 if you want a current-production unit instead of this discontinued model. The male rod thread (B code) suits knuckle and bracket attachments, while the fitted -S magnet pairs with CMSE / DMSE switches. Note the stop screw only shortens the extend stroke - it is a mechanical end stop, not a mid-stroke lock, so the piston still drifts if air is lost. FA/FB flange and LB foot mounts bolt to the standard face.
Replacement checklist
- ✓ Current-production ACE → ACEJ12X35-30SB
- ✓ 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 ACPJ12X35-30SB FAQ
Push is 56.5 N and pull is 42.4 N at 0.5 MPa; at 0.7 MPa push rises to 79.2 N and pull to 59.4 N, with a theoretical maximum of 11.5 kgf at 1.0 MPa. The -30 code sets a 30 mm adjustment window, so the stop screw trims the 35 mm extend stroke anywhere down to 5 mm. The cylinder is double acting, runs on air filtered to 40 um at 0.15-1.0 MPa (22-145 psi), and moves at 30-500 mm/s.
The hard-anodized aluminium body is an ISO 21287-class short build, roughly 50% shorter in mounting length than an ISO 15552 profile cylinder, with a fixed TPU bumper at each end and a 6 mm rod on a male thread. FA/FB flanges and LB feet bolt to the standard face, and the fitted -S magnet accepts CMSE / DMSE switches. The ACPJ family is discontinued - order the ACEJ12X35 as the current drop-in and confirm the ISO 21287 mounting dimensions first, since the ACP was built to DIN.
Related AirTAC ACE Cylinders
Request a Quote for the ACEJ12X35-30SB
Send us the quantity and destination. We confirm price, stock and lead time on the ACEJ12X35-30SB replacement — usually within 7-8 hours.