This model is discontinued
AirTAC has phased out the ACP series. You can still order this code here: we ship the current replacement ACEJ16X125-75, 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 ACPJ16X125-75
The AirTAC ACPJ Adjustable Compact Cylinder ACPJ16X125-75 is a double acting, double rod, adjustable stroke DIN-standard tight/compact air cylinder with a Ø16mm bore and 125mm stroke, M5×0.8 air ports and a hard-anodized aluminium body. This model is discontinued — the current-production replacement is the ACEJ16X125-75 (ISO 21287 ACE), in the same bore, stroke and force class.
- BoreØ16 mm
- Stroke125 mm
- Port sizeM5×0.8
- Acting typeDouble acting, double rod, adjustable stroke
- Rod threadM4×0.7
- StatusDiscontinued → ACEJ16X125-75
- 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 ACPJ16X125-75
This ACPJ16X125-75 is a double acting compact cylinder with an adjustable extend stroke: the -75 code gives a 75 mm stop-screw window, so the 125 mm stroke can be trimmed anywhere in a 50-125 mm range on site. Note the 125 mm stroke exceeds the 75 mm maximum standard stroke for bore 16, so it is a made-to-order build. This model is discontinued; the current-production replacement is ACEJ16X125, the ISO 21287 successor in the same bore and force class.
The hard-anodized aluminium body with an S45C hard-chrome rod saves about 50% of the mounting length of an ISO 15552 profile cylinder, which is why it suits shallow jigs and guarding where a full-length body will not fit. The rod end is female M4x0.7, the port is M5x0.8, and no magnet is fitted - the optional -S code is required before CMSE / DMSE switches can be used.
Airtac ACPJ Adjustable Compact Cylinder ACPJ16X125-75 Technical Specifications
| Model | Airtac ACPJ Adjustable Compact Cylinder ACPJ16X125-75 |
|---|---|
| Series | ACPJ DIN compact cylinder (discontinued) |
| Replacement | ACEJ16X125-75 |
| Bore size | Ø16 mm |
| Stroke | 125 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 ACEJ16X125-75 (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 ACPJ16X125-75
| ACPJ | DIN compact cylinder (adjustable-stroke, discontinued). |
|---|---|
| 16 | Bore size in mm. |
| ×125 | Stroke length in mm. |
| -75 | 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 ACPJ16X125-75 Is Used
Indexing stop on a bottling line conveyor
A stop screw sets the exact protrusion that catches 250 ml bottles at a filling station; the short body fits under the side guide rail where a full-length profile cylinder would collide.
Sample press in a lab automation module
The 16 mm bore presses microplate seals with about 6 kg of usable force at 0.5 MPa, and the female M4x0.7 rod thread accepts a custom probe tip directly.
Replacing the Airtac ACPJ Adjustable Compact Cylinder ACPJ16X125-75 with the ACEJ16X125-75
The stop screw trims the extend stroke only - it is not a mid-stroke lock, so on air loss the piston still drifts and cannot hold a load. FA/FB flange and LB foot mountings bolt to the ISO 21287 face. Since this model is discontinued, order ACEJ16X125 as the direct and confirm the ISO 21287 mounting dimensions before swapping, because the ACP series was built to a DIN-standard footprint.
Replacement checklist
- ✓ Current-production ACE → ACEJ16X125-75
- ✓ 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 ACPJ16X125-75 FAQ
The -75 code is a 75 mm adjustment window: a stop screw shortens the 125 mm extend stroke, giving a usable 50-125 mm range. It runs double acting on air filtered to 40 um at 0.15-1.0 MPa (22-145 psi), proof pressure 1.5 MPa (215 psi), speed 30-500 mm/s, temperature -20 to +70 C. The 125 mm stroke is made to order because the bore 16 standard maximum is 75 mm.
It is an ISO 21287-class short-body cylinder: hard-anodized aluminium body, S45C hard-chrome rod, M5x08 ports - actually M5x0.8 - and a fixed TPU bumper at each end that only decelerates the rod; it never locks or holds a load. The body saves about 50% of the mounting length of an ISO 15552 profile cylinder, and FA/FB flange or LB foot mountings bolt straight on. Position sensing needs the optional -S magnet code; this unit (no S) has no magnet, so CMSE / DMSE switches cannot be fitted. The model is discontinued - ACEJ16X125 is the current direct, so confirm ISO 21287 mounting dimensions before swapping.
Related AirTAC ACE Cylinders
Request a Quote for the ACEJ16X125-75
Send us the quantity and destination. We confirm price, stock and lead time on the ACEJ16X125-75 replacement — usually within 7-8 hours.