This model is discontinued
AirTAC has phased out the ACP series. You can still order this code here: we ship the current replacement ACEJ16X35-20B, 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 ACPJ16X35-20B
The AirTAC ACPJ Adjustable Compact Cylinder ACPJ16X35-20B is a double acting, double rod, adjustable stroke DIN-standard tight/compact air cylinder with a Ø16mm bore and 35mm stroke, M5×0.8 air ports and a hard-anodized aluminium body. This model is discontinued — the current-production replacement is the ACEJ16X35-20B (ISO 21287 ACE), in the same bore, stroke and force class.
- BoreØ16 mm
- Stroke35 mm
- Port sizeM5×0.8
- Acting typeDouble acting, double rod, adjustable stroke
- Rod threadM4×0.7
- StatusDiscontinued → ACEJ16X35-20B
- 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 ACPJ16X35-20B
This ACPJ16X35-20B is a double acting compact cylinder with an adjustable stroke, now discontinued and superseded by the ACEJ16X35 in the ISO 21287 line. The 16 mm bore delivers 100.5 N of push and 75.4 N of pull at 0.5 MPa, rising to 140.7 N and 105.6 N at 0.7 MPa, with a theoretical peak of 20.5 kgf at 1.0 MPa. Its short hard-anodized aluminium body saves roughly 50% of the mounting length of an ISO 15552 profile cylinder, so it slots into cramped jigs and guarding where a full-length body cannot.
The -20 code sets a 20 mm adjustment window: a stop screw trims the 35 mm extend stroke down to as little as 15 mm on site, so one cylinder covers several fixture variants. In practice, plan on about 60 N of usable push at 0.5 MPa, which corresponds to lifting roughly 3 kg vertically with a sensible margin. The male rod thread (B code) bolts straight to I/Y knuckles, and fixed TPU bumpers at both ends handle end-of-travel deceleration. Note the adjuster is a mechanical end stop only, not a mid-stroke lock, so the piston still drifts if air is lost.
Airtac ACPJ Adjustable Compact Cylinder ACPJ16X35-20B Technical Specifications
| Model | Airtac ACPJ Adjustable Compact Cylinder ACPJ16X35-20B |
|---|---|
| Series | ACPJ DIN compact cylinder (discontinued) |
| Replacement | ACEJ16X35-20B |
| Bore size | Ø16 mm |
| Stroke | 35 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 ACEJ16X35-20B (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 ACPJ16X35-20B
| ACPJ | DIN compact cylinder (adjustable-stroke, discontinued). |
|---|---|
| 16 | Bore size in mm. |
| ×35 | 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 ACPJ16X35-20B Is Used
Small-part ejection on assembly benches
The 15-35 mm trimmed stroke and 100.5 N push at 0.5 MPa eject finished clips or pins from a nest without disturbing adjacent fixtures.
PCB and connector hold-down clamping
About 60 N of usable push holds light electronics housings flat during screwdriving, and the 20 mm window absorbs fixture height variations.
Indexing stop on a compact transfer unit
With the optional -S magnet and CMSE / DMSE switches, the cylinder confirms extend and retract on a short-pitch indexing table.
Replacing the Airtac ACPJ Adjustable Compact Cylinder ACPJ16X35-20B with the ACEJ16X35-20B
Size the bore against your load: at 0.5 MPa the 12 mm bore pushes 56.5 N and the 20 mm bore pushes 157.1 N, so the 16 mm bore at 100.5 N sits in the middle for light clamping and positioning. If you need to hold a load against air loss, add an external stop rather than relying on the stroke adjuster. Order the -S code if you want the optional magnet for CMSE / DMSE switches; this version has no magnet. For new designs, specify the current-production ACEJ16X35 instead and confirm the ISO 21287 mounting dimensions before swapping, since the ACP is DIN-standard.
Replacement checklist
- ✓ Current-production ACE → ACEJ16X35-20B
- ✓ 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 ACPJ16X35-20B FAQ
At 0.5 MPa it pushes 100.5 N and pulls 75.4 N; at 0.7 MPa it pushes 140.7 N and pulls 105.6 N; the theoretical maximum is 20.5 kgf at 1.0 MPa. The -20 code gives a 20 mm adjustment window, so the stop screw trims the 35 mm extend stroke anywhere down to 15 mm. Operating pressure is 0.15-1.0 MPa (22-145 psi) and speed is 30-500 mm/s.
The ACPJ family is no longer in production. The current drop-in is the ACEJ16X35 (swap the P for an E), which matches the same 16 mm bore, 35 mm stroke and force class in the ISO 21287 series. Confirm the ISO 21287 mounting dimensions against your fixture before swapping, because the ACP is DIN-standard, and remember the magnet is only present when the -S code is ordered.
Related AirTAC ACE Cylinders
Request a Quote for the ACEJ16X35-20B
Send us the quantity and destination. We confirm price, stock and lead time on the ACEJ16X35-20B replacement — usually within 7-8 hours.