This model is discontinued
AirTAC has phased out the ACP series. You can still order this code here: we ship the current replacement ACEJ16X35-20, 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 ACPJ16X35-20
The AirTAC ACPJ Adjustable Compact Cylinder ACPJ16X35-20 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 ACEJ16X35-20 (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 → ACEJ16X35-20
- 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 ACPJ16X35-20
The ACPJ16X35-20 is a double acting compact cylinder with an adjustable extend stroke: a stop screw trims the 35 mm stroke by up to 20 mm, giving a usable range of 15-35 mm. Its short ISO 21287-class body saves roughly 50% of the mounting length of an ISO 15552 profile cylinder, so it slots into tight jigs and guarding where a full-length body will not fit.
Built on a hard-anodized aluminium body with an S45C hard-chrome rod, it runs on air filtered to 40 um at 0.15-1.0 MPa (22-145 psi) and travels 30-500 mm/s, with a fixed TPU bumper at each end. Note this model is discontinued: the current-production direct is the ACEJ16X35, so confirm ISO 21287 mounting dimensions before swapping.
Airtac ACPJ Adjustable Compact Cylinder ACPJ16X35-20 Technical Specifications
| Model | Airtac ACPJ Adjustable Compact Cylinder ACPJ16X35-20 |
|---|---|
| Series | ACPJ DIN compact cylinder (discontinued) |
| Replacement | ACEJ16X35-20 |
| 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 ACEJ16X35-20 (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 ACPJ16X35-20
| 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 ACPJ16X35-20 Is Used
Indexing stop on a rotary dial table
An external stop screw shortens the extend stroke on site, so the same cylinder serves multiple dial positions; the fixed TPU bumper decelerates the rod at both ends.
Sample pusher in a compact lab analyzer
The short body fits inside tight instrument enclosures, and the M5x0.8 ports plus 30-500 mm/s speed range suit fast, low-force sample transfer of about 3 kg vertical equivalent.
Replacing the Airtac ACPJ Adjustable Compact Cylinder ACPJ16X35-20 with the ACEJ16X35-20
Size the load first: at 0.5 MPa this 16 mm bore pushes 100.5 N, while the smaller 12 mm bore gives 56.5 N and the larger 20 mm bore gives 157.1 N, so step up or down based on your fixture force. The female M4x0.7 rod thread and FA/FB flange or LB foot options bolt into standard ISO 21287 fixtures. Position sensing requires the optional -S magnet code (CMSE / DMSE switches); this version has no magnet fitted. Since the ACPJ is discontinued, order the ACEJ16X35 as the current replacement and verify mounting dimensions.
Replacement checklist
- ✓ Current-production ACE → ACEJ16X35-20
- ✓ 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 ACPJ16X35-20 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; theoretical maximum is 20.5 kgf at 1.0 MPa. The -20 code gives a 20 mm adjustment window, so the 35 mm extend stroke can be trimmed anywhere from 15 to 35 mm. The stop screw shortens the stroke only; it is not a mid-stroke lock, and on air loss the piston still drifts.
The short ISO 21287-class body saves about 50% of the mounting length of an ISO 15552 profile cylinder, with FA/FB flange and LB foot mounting on the standard face and a fixed TPU bumper at each end. Position sensing is possible only when the optional -S magnet is ordered, enabling CMSE / DMSE reed or solid-state switches; this model has no magnet fitted. The ACPJ is discontinued, so plan the swap to the ACEJ16X35 and confirm ISO 21287 mounting dimensions.
Related AirTAC ACE Cylinders
Request a Quote for the ACEJ16X35-20
Send us the quantity and destination. We confirm price, stock and lead time on the ACEJ16X35-20 replacement — usually within 7-8 hours.