This model is discontinued
AirTAC has phased out the ACP series. You can still order this code here: we ship the current replacement ACEJ20X175-100B, 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 ACPJ20X175-100B
The AirTAC ACPJ Adjustable Compact Cylinder ACPJ20X175-100B is a double acting, double rod, adjustable stroke DIN-standard tight/compact air cylinder with a Ø20mm bore and 175mm stroke, M5×0.8 air ports and a hard-anodized aluminium body. This model is discontinued — the current-production replacement is the ACEJ20X175-100B (ISO 21287 ACE), in the same bore, stroke and force class.
- BoreØ20 mm
- Stroke175 mm
- Port sizeM5×0.8
- Acting typeDouble acting, double rod, adjustable stroke
- Rod threadM6×1.0
- StatusDiscontinued → ACEJ20X175-100B
- 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 ACPJ20X175-100B
Double acting and adjustable, the ACPJ20X175-100B is a discontinued DIN-standard compact cylinder with a 20 mm bore, a 175 mm made-to-order stroke and a 100 mm adjustment window. An external stop screw trims the extend stroke anywhere between 75 and 175 mm on site, and a fixed TPU bumper decelerates the piston at both ends. At 0.5 MPa it pushes 157.1 N and pulls 117.8 N; at 0.7 MPa those figures rise to 219.9 N and 164.9 N.
The short ISO 21287-class body saves about 50% of the mounting length of an ISO 15552 profile cylinder, so it slots into tight gantries and guarding where a full-length body cannot. The B code gives a male 10 mm rod thread, and the hard-anodized aluminium body carries an S45C hard-chrome rod. Note there is no magnet fitted (the -S code is optional), so no CMSE / DMSE switch can be used on this version. This model is discontinued: the current direct is ACEJ20X175, and you should confirm ISO 21287 mounting dimensions before swapping.
Airtac ACPJ Adjustable Compact Cylinder ACPJ20X175-100B Technical Specifications
| Model | Airtac ACPJ Adjustable Compact Cylinder ACPJ20X175-100B |
|---|---|
| Series | ACPJ DIN compact cylinder (discontinued) |
| Replacement | ACEJ20X175-100B |
| Bore size | Ø20 mm |
| Stroke | 175 mm |
| Acting type | Double acting, double rod, adjustable stroke |
| Port size | M5×0.8 |
| Rod thread | M6×1.0 |
| 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 100 mm |
Specifications follow the official AirTAC ACP datasheet (now discontinued). The ACEJ20X175-100B (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 (Ø20mm)
| Pressure | Force (both ways) |
|---|---|
| 0.5 MPa | 118 N |
| 0.7 MPa | 165 N |
| Max (@1.0 MPa) | 24 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 ACPJ20X175-100B
| ACPJ | DIN compact cylinder (adjustable-stroke, discontinued). |
|---|---|
| 20 | Bore size in mm. |
| ×175 | Stroke length in mm. |
| -100 | 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 ACPJ20X175-100B Is Used
Adjustable ejector on a packaging line
The 100 mm window lets one cylinder serve several carton heights: trim the extend stroke from 175 mm down to 75 mm without swapping parts, running at 30-500 mm/s.
Replacing the Airtac ACPJ Adjustable Compact Cylinder ACPJ20X175-100B with the ACEJ20X175-100B
Remember the stop screw is a mechanical end stop only - on air loss the piston drifts, so it never holds a load mid-stroke. FA/FB flange and LB foot mountings bolt to the standard face, and the optional -S magnet enables CMSE / DMSE switches if you order it. For new builds, specify the ACEJ20X175 instead; confirm ISO 21287 mounting dimensions first.
Replacement checklist
- ✓ Current-production ACE → ACEJ20X175-100B
- ✓ 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 ACPJ20X175-100B FAQ
At 0.5 MPa it pushes 157.1 N and pulls 117.8 N. At 0.7 MPa it pushes 219.9 N and pulls 164.9 N. The theoretical maximum is 32 kgf at 1.0 MPa. Operating pressure is 0.15-1.0 MPa (22-145 psi) with a 1.5 MPa (215 psi) proof pressure, and speed runs 30-500 mm/s. The 175 mm stroke is a made-to-order length, since the maximum standard stroke for the 20 mm bore is 100 mm.
The -100 code is a 100 mm adjustment window: an external stop screw shortens the 175 mm extend stroke to any length from 75 mm upward. It is a mechanical end stop, not a mid-stroke lock, so the piston still drifts if air is lost. This ACPJ model is discontinued; the current-production replacement is ACEJ20X175, an ISO 21287 compact cylinder in the same bore, stroke and force class. Confirm the ISO 21287 mounting dimensions before swapping, since the ACP is DIN-standard. Also note this version has no magnet (the -S code is optional), so CMSE / DMSE switches cannot be fitted unless that option is ordered.
Related AirTAC ACE Cylinders
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