This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is ACEJ20X15-20SB — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the ACEJ20X15-20SB 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 ACPJ20X15-20SB
The AirTAC Airtac ACPJ Adjustable Compact Cylinder ACPJ20X15-20SB 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 ACEJ20X15-20SB (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 → ACEJ20X15-20SB
- 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 ACPJ20X15-20SB
The ACPJ20X15-20SB is a double acting adjustable-stroke compact cylinder, now discontinued in favour of the ACEJ20X15. Its 20 mm bore delivers 157.1 N push and 117.8 N pull at 0.5 MPa, rising to 219.9 N at 0.7 MPa, with a theoretical peak of 32 kgf at 1.0 MPa. The -20 code gives a 20 mm adjustment window: a stop screw trims the 15 mm extend stroke on site, so the usable range is 0-15 mm without changing the cylinder.
The short ISO 21287-class body saves roughly 50% of the mounting length of an ISO 15552 profile cylinder, which is why it suits cramped jigs and guarding where a full-length body will not fit. This -S version carries the optional magnet, so CMSE or DMSE reed and solid-state switches can be fitted for end-of-stroke sensing. For sizing, treat about 94 N (0.6 x 157.1 N) as the realistic working force at 0.5 MPa - roughly 8 kg lifted vertically with a 2:1 margin. The hard-anodized aluminium body, S45C hard-chrome rod and fixed TPU bumpers at both ends run on 0.15-1.0 MPa (22-145 psi) at 30-500 mm/s.
Airtac ACPJ Adjustable Compact Cylinder ACPJ20X15-20SB Technical Specifications
| Model | Airtac ACPJ Adjustable Compact Cylinder ACPJ20X15-20SB |
|---|---|
| Series | ACPJ DIN compact cylinder (discontinued) |
| Replacement | ACEJ20X15-20SB |
| 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 ACEJ20X15-20SB (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 ACEJ20X15-20SB 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 ACPJ20X15-20SB
| ACPJ | DIN compact cylinder (adjustable-stroke, discontinued). |
|---|---|
| 20 | Bore size in mm. |
| ×15 | Stroke length in mm. |
| -20 | 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 ACPJ20X15-20SB Is Used
Small-parts press fitting
Presses dowel pins or bushings into aluminium housings on an electronics assembly bench, where the 157.1 N push at 0.5 MPa is enough and the trimmed 0-15 mm stroke keeps the cycle short.
Indexing with position feedback
Advances a fixture stop on a rotary indexing table; the fitted magnet lets a DMSE solid-state switch confirm the extend position directly on the machine PLC.
Carton kick-off on packing lines
Kicks small cartons or blisters off a conveyor lane in a food packaging cell, using the male rod thread to bolt a kick plate straight to the rod.
Replacing the Airtac ACPJ Adjustable Compact Cylinder ACPJ20X15-20SB with the ACEJ20X15-20SB
At 20 mm bore this sits in the mid compact class: the 16 mm bore gives 100.5 N push at 0.5 MPa and the next step up is the 25 mm frame if you need more than 219.9 N at 0.7 MPa. The stop screw is a mechanical end stop for the extend stroke only - it does not lock the piston mid-stroke, so on air loss the rod still drifts; add an external clamp if the load must be held. Male rod thread (B code) and PT ports suit direct tooling attachment; pair FA/FB flange or LB foot mounts with the fixture. Order the ACEJ20X15 as the current-production drop-in and confirm the ISO 21287 mounting dimensions before swapping, since the ACP was built to a DIN-standard footprint.
Replacement checklist
- ✓ Current-production ACE → ACEJ20X15-20SB
- ✓ 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 ACPJ20X15-20SB FAQ
Push is 157.1 N and pull 117.8 N at 0.5 MPa; at 0.7 MPa push rises to 219.9 N and pull to 164.9 N; theoretical maximum is 32 kgf at 1.0 MPa. It is double acting with a 20 mm adjustment window on the 15 mm stroke, runs on 0.15-1.0 MPa (22-145 psi) at 30-500 mm/s, and takes M5x0.8 ports with a 10 mm male-thread rod.
Order the ACEJ20X15, the current-production ISO 21287 successor: swap the P for an E and you get the same bore, stroke and force class in a matching short body. Confirm the ISO 21287 mounting dimensions against your fixture first, because the ACPJ followed a DIN-standard layout. The -S magnet on this unit carries over as an option on the ACEJ for CMSE / DMSE switches.
Related AirTAC ACE Cylinders
Request a Quote for the ACEJ20X15-20SB
Send us the quantity and destination. We confirm price, stock and lead time on the ACEJ20X15-20SB replacement — usually within 7-8 hours.