This model is discontinued
AirTAC has phased out the ACP series. You can still order this code here: we ship the current replacement ACEJ12X100-50SB, 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 ACPJ12X100-50SB
The AirTAC ACPJ Adjustable Compact Cylinder ACPJ12X100-50SB is a double acting, double rod, adjustable stroke DIN-standard tight/compact air cylinder with a Ø12mm bore and 100mm stroke, M5×0.8 air ports and a hard-anodized aluminium body. This model is discontinued — the current-production replacement is the ACEJ12X100-50SB (ISO 21287 ACE), in the same bore, stroke and force class.
- BoreØ12 mm
- Stroke100 mm
- Port sizeM5×0.8
- Acting typeDouble acting, double rod, adjustable stroke
- Rod threadM3×0.5
- StatusDiscontinued → ACEJ12X100-50SB
- 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 ACPJ12X100-50SB
Double acting and adjustable in stroke, the ACPJ12X100-50SB is a discontinued DIN-standard compact cylinder: 12 mm bore, 100 mm stroke and a 50 mm trim window, so an external stop screw shortens the extend stroke anywhere in a 50-100 mm range. At 0.5 MPa it pushes 56.5 N and pulls 42.4 N; at 0.7 MPa that rises to 79.2 N / 59.4 N, with a theoretical 11.5 kgf at 1.0 MPa. In practice plan for roughly 34 N of usable work at 0.5 MPa, which lifts about 2.9 kg vertically with a 2:1 margin. The 100 mm stroke exceeds the 50 mm maximum standard stroke for this bore, so it is a made-to-order build.
The short ISO 21287-class body saves about 50% of the mounting length of an ISO 15552 profile cylinder, so it slots into tight jigs and guard brackets where a full-length body will not fit. The hard-anodized aluminium body carries an S45C hard-chrome 6 mm rod with a male thread (B code), M5x0.8 ports, PT thread and fixed TPU bumpers at both ends. This model carries the optional -S magnet, so CMSE / DMSE reed or solid-state switches can be mounted for end-of-stroke sensing. It runs on air filtered to 40 um at 0.15-1.0 MPa (22-145 psi), 30-500 mm/s, -20 to +70 C. Discontinued: the current drop-in is the ACEJ12X100 - confirm ISO 21287 mounting dimensions before swapping.
Airtac ACPJ Adjustable Compact Cylinder ACPJ12X100-50SB Technical Specifications
| Model | Airtac ACPJ Adjustable Compact Cylinder ACPJ12X100-50SB |
|---|---|
| Series | ACPJ DIN compact cylinder (discontinued) |
| Replacement | ACEJ12X100-50SB |
| Bore size | Ø12 mm |
| Stroke | 100 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 ACEJ12X100-50SB (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 ACPJ12X100-50SB
| ACPJ | DIN compact cylinder (adjustable-stroke, discontinued). |
|---|---|
| 12 | Bore size in mm. |
| ×100 | Stroke length in mm. |
| -50 | 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 ACPJ12X100-50SB Is Used
Small-part ejection in plastic molding
The 50-100 mm trim range lets a mold setter dial the eject stroke to the cavity depth on site, while 56.5 N at 0.5 MPa clears lightweight sprues and parts from a 12 mm pocket.
Position-verified test fixtures
With the fitted -S magnet driving CMSE or DMSE switches, an electronics test bench confirms the trimmed extend position before a probe cycle starts, at 30-500 mm/s.
Compact lid-clamp on a lab autosampler
The short body, about 50% shorter in mounting length than an ISO 15552 profile cylinder, fits inside the instrument housing, and the male-threaded 6 mm rod takes a knuckle for the clamp arm.
Replacing the Airtac ACPJ Adjustable Compact Cylinder ACPJ12X100-50SB with the ACEJ12X100-50SB
Size both ways: if 56.5 N of push at 0.5 MPa is marginal, step up to the 16 mm bore for 100.5 N; if the load is under about 34 N of real work, this 12 mm bore keeps air use low. The 50 mm window trims the extend stroke only - it is a mechanical end stop, not a mid-stroke lock, so on air loss the piston still drifts and the stop never holds a load. FA/FB flange and LB foot mountings bolt to the standard face, and the fitted -S magnet accepts CMSE / DMSE switches. For new projects order the ACEJ12X100, the current-production successor in the same bore, stroke and force class.
Replacement checklist
- ✓ Current-production ACE → ACEJ12X100-50SB
- ✓ 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 ACPJ12X100-50SB FAQ
At 0.5 MPa it pushes 56.5 N and pulls 42.4 N; at 0.7 MPa, 79.2 N push and 59.4 N pull; theoretical maximum is 11.5 kgf at 1.0 MPa. For sizing, treat about 34 N as the usable force at 0.5 MPa, which is roughly 2.9 kg of vertical lift with a 2:1 margin. Operating pressure is 0.15-1.0 MPa (22-145 psi), proof 1.5 MPa (215 psi), speed 30-500 mm/s.
The -50 code sets a 50 mm window: an external stop screw shortens the 100 mm extend stroke anywhere between 50 and 100 mm, and fixed TPU bumpers decelerate at both ends. The model is discontinued; the current-production replacement is the ACEJ12X100 in the same bore, stroke and force class - confirm the ISO 21287 mounting dimensions before swapping, since the ACP is DIN-standard.
Related AirTAC ACE Cylinders
Request a Quote for the ACEJ12X100-50SB
Send us the quantity and destination. We confirm price, stock and lead time on the ACEJ12X100-50SB replacement — usually within 7-8 hours.