This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is ACEJ12X35-40SB — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the ACEJ12X35-40SB in place of this model. 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 ACPJ12X35-40SB
The AirTAC Airtac ACPJ Adjustable Compact Cylinder ACPJ12X35-40SB is a double acting, 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 ACEJ12X35-40SB (ISO 21287 ACE), in the same bore, stroke and force class.
- BoreØ12 mm
- Stroke35 mm
- Port sizeM5×0.8
- Acting typeDouble acting, adjustable stroke
- Rod threadM3×0.5
- StatusDiscontinued → ACEJ12X35-40SB
About the Airtac ACPJ Adjustable Compact Cylinder ACPJ12X35-40SB
Double acting with an adjustable extend stroke, the discontinued ACPJ12X35-40SB is a DIN-standard compact cylinder: 12 mm bore, 35 mm stroke, 6 mm male-threaded rod and an M5x0.8 port. 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 theoretical ceiling of 11.5 kgf at 1.0 MPa. The -40 code sets a 40 mm adjustment window, so a stop screw trims the extend stroke anywhere within 0-35 mm on site. Because the short ISO 21287-class body saves roughly 50% of the mounting length of an ISO 15552 profile cylinder, it slots into tight jigs, guards and pick stations where a full-length body will not fit.
The -S magnet this model carries lets you bolt on CMSE or DMSE reed or solid-state switches for end-of-stroke signalling, and the fixed TPU bumper at both ends simply decelerates the piston at each end of travel. Plan on about 34 N (roughly 3 kg lifted vertically with a 2:1 margin) of real work at 0.5 MPa rather than the full 56.5 N rating. Note that ACPJ is no longer in production: the current drop-in is ACEJ12X35, same bore, stroke and force class, so confirm the ISO 21287 mounting dimensions before swapping.
Airtac ACPJ Adjustable Compact Cylinder ACPJ12X35-40SB Technical Specifications
| Model | Airtac ACPJ Adjustable Compact Cylinder ACPJ12X35-40SB |
|---|---|
| Series | ACPJ DIN compact cylinder (discontinued) |
| Replacement | ACEJ12X35-40SB |
| Bore size | Ø12 mm |
| Stroke | 35 mm |
| Acting type | Double acting, 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 ACEJ12X35-40SB (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 | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 57 N | 42 N |
| 0.7 MPa | 79 N | 59 N |
| Max (@1.0 MPa) | 12 kgf | |
The ACEJ12X35-40SB produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac ACPJ Adjustable Compact Cylinder ACPJ12X35-40SB
| ACPJ | DIN compact cylinder (adjustable-stroke, discontinued). |
|---|---|
| 12 | Bore size in mm. |
| ×35 | 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 (adjustable stroke).
Where the Airtac ACPJ Adjustable Compact Cylinder ACPJ12X35-40SB Is Used
Micro ejection in electronics assembly
Trims the extend stroke via the 40 mm window to nudge small PCB carriers or connector caps off a fixture, with 56.5 N push at 0.5 MPa enough for parts under about 3 kg.
Position-confirmed clamping on test rigs
The fitted -S magnet drives CMSE or DMSE switches so the PLC confirms the trimmed extend position before a leak or functional test starts.
Compact lid-press on lab packaging cells
The short body, about 50% shorter in mounting length than an ISO 15552 profile cylinder, fits inside a benchtop sealing head where a full-length body cannot.
Replacing the Airtac ACPJ Adjustable Compact Cylinder ACPJ12X35-40SB with the ACEJ12X35-40SB
At 12 mm bore you get 56.5 N push at 0.5 MPa; step up to the 16 mm bore for 100.5 N or drop to a direct ACEJ12X35 if you only need this force class. The 35 mm stroke sits inside the 50 mm maximum standard stroke for this bore, so no made-to-order stroke is needed. The male rod thread (B code) suits I/Y knuckles, and the optional-magnet S code here pairs with CMSE / DMSE switches. Order the ACEJ12X35 as the current-production replacement and verify ISO 21287 mounting dimensions first.
Replacement checklist
- ✓ Current-production ACE → ACEJ12X35-40SB
- ✓ 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 ACPJ12X35-40SB FAQ
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, with a theoretical maximum of 11.5 kgf at 1.0 MPa. It is double acting, runs on air filtered to 40 um at 0.15-1.0 MPa (22-145 psi), proof pressure 1.5 MPa (215 psi), speed 30-500 mm/s, temperature -20 to +70 C, port M5x0.8, rod 6 mm male thread, and the -40 code gives a 40 mm window to trim the 35 mm extend stroke.
No, the ACPJ family is discontinued. The current-production drop-in is ACEJ12X35, which swaps the P for an E and matches the same bore, stroke and force class in the ISO 21287 short-body format. Confirm the ISO 21287 mounting dimensions before swapping, since the ACP was built to a DIN-standard footprint. Also note the mechanical stop only shortens the extend stroke; it does not hold a load if air is lost.
Related AirTAC ACE Cylinders
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