This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is ACEJ16X40-40B — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the ACEJ16X40-40B 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 ACPJ16X40-40B
The AirTAC Airtac ACPJ Adjustable Compact Cylinder ACPJ16X40-40B is a double acting, adjustable stroke DIN-standard tight/compact air cylinder with a Ø16mm bore and 40mm stroke, M5×0.8 air ports and a hard-anodized aluminium body. This model is discontinued — the current-production replacement is the ACEJ16X40-40B (ISO 21287 ACE), in the same bore, stroke and force class.
- BoreØ16 mm
- Stroke40 mm
- Port sizeM5×0.8
- Acting typeDouble acting, adjustable stroke
- Rod threadM4×0.7
- StatusDiscontinued → ACEJ16X40-40B
About the Airtac ACPJ Adjustable Compact Cylinder ACPJ16X40-40B
The ACPJ16X40-40B is a double acting adjustable-stroke compact cylinder, now discontinued, with a 16 mm bore and 40 mm stroke. Air drives the rod in both directions, and an external stop screw trims the extend stroke anywhere within the ordered 40 mm window, giving a usable range of 0-40 mm. At 0.5 MPa it pushes 100.5 N and pulls 75.4 N; at 0.7 MPa those figures rise to 140.7 N and 105.6 N, with a theoretical maximum of 20.5 kgf at 1.0 MPa. The short ISO 21287-class body saves roughly 50% of the mounting length of an ISO 15552 profile cylinder, so it slots into cramped fixtures a full-length body cannot reach.
Built around a hard-anodized aluminium body with an S45C hard-chrome rod, it carries fixed TPU bumpers at both ends and runs at 30-500 mm/s on air filtered to 40 um, 0.15-1.0 MPa (22-145 psi). This B-code version has a male rod thread and a PT port thread with an M5x0.8 port. For planning, treat about 60 N (0.6 of the push force) as the realistic working output at 0.5 MPa, which corresponds to lifting roughly 5 kg vertically with a 2:1 margin. Note that the stop screw is a mechanical end stop only: on air loss the piston still drifts, so it never holds a load. The current-production drop-in is the ACEJ16X40 (swap the P for an E); confirm ISO 21287 mounting dimensions before swapping, since the ACP series is DIN-standard.
Airtac ACPJ Adjustable Compact Cylinder ACPJ16X40-40B Technical Specifications
| Model | Airtac ACPJ Adjustable Compact Cylinder ACPJ16X40-40B |
|---|---|
| Series | ACPJ DIN compact cylinder (discontinued) |
| Replacement | ACEJ16X40-40B |
| Bore size | Ø16 mm |
| Stroke | 40 mm |
| Acting type | Double acting, adjustable stroke |
| Port size | M5×0.8 |
| Rod thread | M4×0.7 |
| 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 75 mm |
Specifications follow the official AirTAC ACP datasheet (now discontinued). The ACEJ16X40-40B (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 (Ø16mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 101 N | 75 N |
| 0.7 MPa | 141 N | 106 N |
| Max (@1.0 MPa) | 21 kgf | |
The ACEJ16X40-40B 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 ACPJ16X40-40B
| ACPJ | DIN compact cylinder (adjustable-stroke, discontinued). |
|---|---|
| 16 | Bore size in mm. |
| ×40 | 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 ACPJ16X40-40B Is Used
Small-parts press station
The 100.5 N push at 0.5 MPa seats connectors, labels or light inserts into plastic housings on an electronics assembly bench, with the 0-40 mm trim matching varying part heights.
Packaging line reject gate
A short 40 mm stroke with on-site adjustment swings or pushes off-spec cartons off a conveyor without lengthening the machine frame, thanks to the compact short body.
Lab clamping fixture
About 5 kg of vertical lift capacity (with a 2:1 margin) makes the 16 mm bore suitable for clamping small test specimens or lowering probes in bench-top rigs.
Replacing the Airtac ACPJ Adjustable Compact Cylinder ACPJ16X40-40B with the ACEJ16X40-40B
Size this bore by force: at 0.5 MPa the 16 mm bore gives 100.5 N push, while the 12 mm bore delivers 56.5 N and the 20 mm bore 157.1 N. If your fixture needs more than about 60 N of real work at 0.5 MPa, step up to the 20 mm bore. The male rod thread (B code) suits knuckle or external tooling; FA/FB flange and LB foot mountings bolt to the standard face. The 40 mm stroke sits well inside the 75 mm maximum standard stroke for this bore. This model is discontinued - order the ACEJ16X40 as the current drop-in and verify ISO 21287 mounting dimensions first.
Replacement checklist
- ✓ Current-production ACE → ACEJ16X40-40B
- ✓ 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 ACPJ16X40-40B FAQ
At 0.5 MPa it pushes 100.5 N and pulls 75.4 N; at 0.7 MPa, 140.7 N push and 105.6 N pull; theoretical maximum 20.5 kgf at 1.0 MPa. The -40 code sets a 40 mm adjustment window: an external stop screw shortens the 40 mm extend stroke on site, giving a usable 0-40 mm range. It is an end stop only - on air loss the piston drifts, so it never holds a load. Operating pressure is 0.15-1.0 MPa (22-145 psi) and speed is 30-500 mm/s.
No - the ACPJ family is discontinued. The current-production replacement is the ACEJ16X40 (P changed to E), a drop-in in the same bore, stroke and force class; confirm ISO 21287 mounting dimensions before swapping. On sensors: this unit has no magnet because the -S code was not ordered. The optional -S magnet enables CMSE / DMSE reed or solid-state switches; without it, no switch can be mounted.
Related AirTAC ACE Cylinders
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