This model is discontinued
AirTAC has phased out the ACP series. You can still order this code here: we ship the current replacement ACEJ16X20-20B, 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 ACPJ16X20-20B
The AirTAC ACPJ Adjustable Compact Cylinder ACPJ16X20-20B is a double acting, double rod, 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, double rod, adjustable stroke
- Rod threadM4×0.7
- StatusDiscontinued → ACEJ16X20-20B
- 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 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, double rod, 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 | Force (both ways) |
|---|---|
| 0.5 MPa | 75 N |
| 0.7 MPa | 106 N |
| Max (@1.0 MPa) | 15 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 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 (double rod, 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
Request a Quote for the ACEJ16X20-20B
Send us the quantity and destination. We confirm price, stock and lead time on the ACEJ16X20-20B replacement — usually within 7-8 hours.