This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is ACEJ20X15-10B — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the ACEJ20X15-10B 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 ACPJ20X15-10B
The AirTAC Airtac ACPJ Adjustable Compact Cylinder ACPJ20X15-10B is a double acting, adjustable stroke DIN-standard tight/compact air cylinder with a Ø20mm bore and 15mm stroke, M5×0.8 air ports and a hard-anodized aluminium body. This model is discontinued — the current-production replacement is the ACEJ20X15-10B (ISO 21287 ACE), in the same bore, stroke and force class.
- BoreØ20 mm
- Stroke15 mm
- Port sizeM5×0.8
- Acting typeDouble acting, adjustable stroke
- Rod threadM6×1.0
- StatusDiscontinued → ACEJ20X15-10B
- 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 ACPJ20X15-10B
Double acting and adjustable, the ACPJ20X15-10B is a discontinued DIN-standard compact cylinder with a 20 mm bore and 15 mm stroke. An external stop screw trims the extend stroke by up to 10 mm, giving a usable 5-15 mm range, and a male rod thread (B code) comes standard on the 10 mm rod. At 0.5 MPa it pushes 157.1 N and pulls 117.8 N; at 0.7 MPa those rise to 219.9 N and 164.9 N, with a theoretical 32 kgf at 1.0 MPa. The hard-anodized aluminium body and S45C hard-chrome rod run on air filtered to 40 um at 0.15-1.0 MPa (22-145 psi), 30-500 mm/s, -20 to +70 C.
The short ISO 21287-class body saves about 50% of the mounting length of an ISO 15552 profile cylinder, so it slots into tight fixtures where a full-length body cannot. In practice, plan for roughly 94 N of real work at 0.5 MPa (about 60% of the push rating), which lifts around 4 kg vertically with a 2:1 margin - enough for small clamps and part-pushing jobs. Note this model carries no magnet (the -S code is the optional add-on for CMSE / DMSE switches), and the fixed TPU bumpers only decelerate at the ends. ACPJ is discontinued: the current drop-in is ACEJ20X15, same bore, stroke and force class - confirm ISO 21287 mounting dimensions before swapping.
Airtac ACPJ Adjustable Compact Cylinder ACPJ20X15-10B Technical Specifications
| Model | Airtac ACPJ Adjustable Compact Cylinder ACPJ20X15-10B |
|---|---|
| Series | ACPJ DIN compact cylinder (discontinued) |
| Replacement | ACEJ20X15-10B |
| Bore size | Ø20 mm |
| Stroke | 15 mm |
| Acting type | Double acting, adjustable stroke |
| Port size | M5×0.8 |
| Rod thread | M6×1.0 |
| 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 100 mm |
Specifications follow the official AirTAC ACP datasheet (now discontinued). The ACEJ20X15-10B (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 (Ø20mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 157 N | 118 N |
| 0.7 MPa | 220 N | 165 N |
| Max (@1.0 MPa) | 32 kgf | |
The ACEJ20X15-10B 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 ACPJ20X15-10B
| ACPJ | DIN compact cylinder (adjustable-stroke, discontinued). |
|---|---|
| 20 | Bore size in mm. |
| ×15 | Stroke length in mm. |
| -10 | 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 ACPJ20X15-10B Is Used
Small-part ejection from machining fixtures
The 5-15 mm adjustable range and 157.1 N push at 0.5 MPa suit knocking finished aluminium or brass pins off a CNC jig into a collection chute.
Low-profile clamping on electronics assembly benches
With the body about 50% shorter than an ISO 15552 profile cylinder, it clamps PCB test fixtures under low guards where space above the part is minimal.
Indexing a light slider on a packaging line
Around 4 kg of vertical lift equivalent at a 2:1 margin makes it a fit for advancing small trays or blisters a short, precisely trimmed distance.
Replacing the Airtac ACPJ Adjustable Compact Cylinder ACPJ20X15-10B with the ACEJ20X15-10B
Size both ways: if 157.1 N push at 0.5 MPa is more than the job needs, the 16 mm bore gives 100.5 N; if you need more, the next class up in the ACEJ family adds force in the same short envelope. Remember the stop screw only shortens the extend stroke - it is not a mid-stroke lock, so the piston still drifts if air is lost. FA/FB flange and LB foot mountings bolt to the standard face, and order the -S code if you later want CMSE / DMSE sensing. This model is discontinued; specify ACEJ20X15 as the current replacement and verify ISO 21287 mounting dimensions.
Replacement checklist
- ✓ Current-production ACE → ACEJ20X15-10B
- ✓ 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 ACPJ20X15-10B FAQ
At 0.5 MPa it pushes 157.1 N and pulls 117.8 N; at 0.7 MPa, 219.9 N push and 164.9 N pull. Theoretical maximum is 32 kgf at 1.0 MPa. Operating pressure is 0.15-1.0 MPa (22-145 psi), proof pressure 1.5 MPa (215 psi), speed 30-500 mm/s, fluid air filtered to 40 um, temperature -20 to +70 C. The stroke is 15 mm with a 10 mm adjustment window (usable 5-15 mm), port M5x0.8, male rod thread on the 10 mm rod, fixed TPU bumpers both ends.
Sensing requires the optional -S magnet code, which this model does not carry, so no CMSE / DMSE switch can be mounted as built. For a new project order ACEJ20X15 - the current-production ISO 21287 replacement with the same 20 mm bore, 15 mm stroke and force class. Because the ACPJ is DIN-standard, confirm the ISO 21287 mounting dimensions before swapping it into an existing fixture.
Related AirTAC ACE Cylinders
Request a Quote for the ACEJ20X15-10B
Send us the quantity and destination. We confirm price, stock and lead time on the ACEJ20X15-10B replacement — usually within 7-8 hours.