This model is discontinued
AirTAC has phased out the ACP series. You can still order this code here: we ship the current replacement ACEJ12X200-50S, 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 ACPJ12X200-50S
The AirTAC ACPJ Adjustable Compact Cylinder ACPJ12X200-50S is a double acting, double rod, adjustable stroke DIN-standard tight/compact air cylinder with a Ø12mm bore and 200mm stroke, M5×0.8 air ports and a hard-anodized aluminium body. This model is discontinued — the current-production replacement is the ACEJ12X200-50S (ISO 21287 ACE), in the same bore, stroke and force class.
- BoreØ12 mm
- Stroke200 mm
- Port sizeM5×0.8
- Acting typeDouble acting, double rod, adjustable stroke
- Rod threadM3×0.5
- StatusDiscontinued → ACEJ12X200-50S
- 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 ACPJ12X200-50S
This is a double acting compact cylinder with an adjustable extend stroke: a stop screw trims the 200 mm stroke by up to 50 mm on site, giving a usable range of 150-200 mm. The 12 mm bore delivers 56.5 N push and 42.4 N pull at 0.5 MPa, rising to 79.2 N push at 0.7 MPa, with a theoretical maximum of 11.5 kgf at 1.0 MPa. The 200 mm stroke exceeds the 50 mm standard maximum for this bore, so it is a made-to-order item. Note: the ACPJ family is discontinued; the current-production replacement is ACEJ12X200.
The short ISO 21287-class body saves about 50% of the mounting length of an ISO 15552 profile cylinder, so it slots into slim fixtures and guarding where a full-length body cannot. Because roughly 60% of the push force does real work in practice, plan for about 34 N, which lifts about 3 kg vertically with a 2:1 margin. The body is hard-anodized aluminium with an S45C hard-chrome rod, a fixed TPU bumper at both ends, and the -S code on this model means the magnet is fitted, so CMSE / DMSE switches can be mounted for end-of-stroke sensing.
Airtac ACPJ Adjustable Compact Cylinder ACPJ12X200-50S Technical Specifications
| Model | Airtac ACPJ Adjustable Compact Cylinder ACPJ12X200-50S |
|---|---|
| Series | ACPJ DIN compact cylinder (discontinued) |
| Replacement | ACEJ12X200-50S |
| Bore size | Ø12 mm |
| Stroke | 200 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 ACEJ12X200-50S (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 ACPJ12X200-50S
| ACPJ | DIN compact cylinder (adjustable-stroke, discontinued). |
|---|---|
| 12 | Bore size in mm. |
| ×200 | 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 ACPJ12X200-50S Is Used
Small-part ejection from press dies
The 56.5 N push at 0.5 MPa clears stamped clips and grommets off a die face, while the 50 mm window lets the setter trim the 200 mm extend stroke to the exact ejection distance.
Position-verified test fixtures
With the -S magnet fitted, CMSE or DMSE switches confirm the rod has reached the trimmed end position, useful in electronics test rigs where each cycle must be verified.
Lab sample indexing
The 150-200 mm adjustable range and 30-500 mm/s speed suit sliding sample trays or vial racks in analytical and packaging lab equipment, with the M5x0.8 port keeping plumbing compact.
Replacing the Airtac ACPJ Adjustable Compact Cylinder ACPJ12X200-50S with the ACEJ12X200-50S
At 12 mm bore this is the smallest force class in the range: the 16 mm bore gives 100.5 N push and the 20 mm bore gives 157.1 N at 0.5 MPa, so step up if 56.5 N leaves too little headroom. The stop screw only shortens the extend stroke and is not a mid-stroke lock; on air loss the piston still drifts, so do not rely on it to hold a load. FA/FB flange or LB foot mounting and the female M3x0.5 rod thread suit light clamping fixtures. Before ordering, confirm the ISO 21287 mounting dimensions of the ACEJ12X200 replacement, since the ACP is DIN-standard.
Replacement checklist
- ✓ Current-production ACE → ACEJ12X200-50S
- ✓ 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 ACPJ12X200-50S 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; the theoretical maximum is 11.5 kgf at 1.0 MPa. The -50 code gives a 50 mm adjustment window, so the 200 mm extend stroke can be trimmed anywhere in a 150-200 mm range. Operating pressure is 0.15-1.0 MPa (22-145 psi) and speed is 30-500 mm/s. This stroke is made to order, since the bore 12 standard maximum is 50 mm.
Order the ACEJ12X200, the current ISO 21287 replacement: swap the P for an E and you get the same 12 mm bore, 200 mm stroke and force class. Confirm the ISO 21287 mounting dimensions before swapping, because the ACP was built to a DIN standard. The ACEJ keeps the same short-body layout, FA/FB flange and LB foot options, and the optional -S magnet for CMSE / DMSE switches.
Related AirTAC ACE Cylinders
Request a Quote for the ACEJ12X200-50S
Send us the quantity and destination. We confirm price, stock and lead time on the ACEJ12X200-50S replacement — usually within 7-8 hours.