This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is ACEJ16X20-20B — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the ACEJ16X20-20B 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 ACPJ16X20-20B
The AirTAC Airtac ACPJ Adjustable Compact Cylinder ACPJ16X20-20B is a double acting, adjustable stroke DIN-standard tight/compact air cylinder with a Ø16mm bore and 20mm stroke, M5×0.8 air ports and a hard-anodized aluminium body. This model is discontinued — the current-production replacement is the ACEJ16X20-20B (ISO 21287 ACE), in the same bore, stroke and force class.
- BoreØ16 mm
- Stroke20 mm
- Port sizeM5×0.8
- Acting typeDouble acting, adjustable stroke
- Rod threadM4×0.7
- StatusDiscontinued → ACEJ16X20-20B
About the Airtac ACPJ Adjustable Compact Cylinder ACPJ16X20-20B
This double acting compact cylinder trims its extend stroke on site: the -20 code gives a 20 mm stop-screw window, so the 20 mm stroke can be shortened anywhere in a 0-20 mm range. The 16 mm bore delivers 100.5 N push and 75.4 N pull at 0.5 MPa (140.7 N / 105.6 N at 0.7 MPa), with a theoretical peak of 20.5 kgf at 1.0 MPa. The male rod thread (B code) bolts straight to I/Y knuckles on the ISO 21287 face.
The short ISO 21287 body saves roughly 50% of the mounting length of an ISO 15552 profile cylinder, which is why it slots into cramped fixtures and guarding. In practice, plan for about 60 N (roughly 6 kg) of real work at 0.5 MPa, and expect it to lift about 5 kg vertically once you keep a 2:1 margin. Note this model is discontinued; the current drop-in is ACEJ16X20, so confirm ISO 21287 mounting dimensions before swapping from the DIN-standard ACP footprint.
Airtac ACPJ Adjustable Compact Cylinder ACPJ16X20-20B Technical Specifications
| Model | Airtac ACPJ Adjustable Compact Cylinder ACPJ16X20-20B |
|---|---|
| Series | ACPJ DIN compact cylinder (discontinued) |
| Replacement | ACEJ16X20-20B |
| Bore size | Ø16 mm |
| Stroke | 20 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 ACEJ16X20-20B (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 ACEJ16X20-20B 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 ACPJ16X20-20B
| ACPJ | DIN compact cylinder (adjustable-stroke, discontinued). |
|---|---|
| 16 | Bore size in mm. |
| ×20 | 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 ACPJ16X20-20B Is Used
Small-parts ejection in plastic moulding
The 0-20 mm trim range lets a technician set the exact eject distance for thin clips or connectors, using the 100.5 N push at 0.5 MPa to clear the cavity.
Bench-top press for connector crimping
With about 60 N of practical working force and a male-threaded rod for quick knuckle mounting, it suits light crimp jigs on electronics assembly benches.
Product stopper on a packaging lane
The 20 mm stroke, trimmed via the stop screw, pops a stop pin into a moving lane of cartons; the fixed TPU bumper absorbs the end-of-travel knock.
Replacing the Airtac ACPJ Adjustable Compact Cylinder ACPJ16X20-20B with the ACEJ16X20-20B
At 100.5 N push (0.5 MPa) this 16 mm bore sits between the 12 mm bore (56.5 N) and the 20 mm bore (157.1 N); step up if your part weight needs more than about 6 kg of usable push. The adjuster is a mechanical end stop for the extend stroke only - it never holds a load if air is lost. If you need position sensing, order the -S variant, since this code has no magnet and accepts no CMSE / DMSE switch. For new builds, specify the ACEJ16X20 instead.
Replacement checklist
- ✓ Current-production ACE → ACEJ16X20-20B
- ✓ 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 ACPJ16X20-20B FAQ
At 0.5 MPa it pushes 100.5 N and pulls 75.4 N; at 0.7 MPa those rise to 140.7 N and 105.6 N, with a theoretical maximum of 20.5 kgf at 1.0 MPa. The -20 code sets a 20 mm adjustment window: a stop screw shortens the 20 mm extend stroke anywhere within 0-20 mm. It runs on 0.15-1.0 MPa (22-145 psi) air filtered to 40 um at 30-500 mm/s. This model is discontinued - the ACEJ16X20 is the current replacement.
The ISO 21287 short body cuts mounting length by about 50% versus an ISO 15552 profile cylinder, so it fits tight gantries and jigs. FA/FB flanges and LB feet bolt to the standard face, and the male rod thread (B code) takes I/Y knuckles. A fixed TPU bumper sits at both ends. Position switches (CMSE / DMSE) require the optional -S magnet; this version without the S code carries no magnet, so no sensor can be mounted.
Related AirTAC ACE Cylinders
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