This model is discontinued
AirTAC has phased out the ACP series. You can still order this code here: we ship the current replacement ACEJ16X125-30SB, 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 ACPJ16X125-30SB
The AirTAC ACPJ Adjustable Compact Cylinder ACPJ16X125-30SB 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 ACEJ16X125-30SB (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 → ACEJ16X125-30SB
- 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 ACPJ16X125-30SB
This is a double acting, adjustable-stroke compact cylinder in the AirTAC ACPJ family, now discontinued and replaced by the ACEJ16X125 in the same bore, stroke and force class. The 16 mm bore delivers 100.5 N push and 75.4 N pull at 0.5 MPa, rising to 140.7 N push at 0.7 MPa, with a theoretical maximum of 20.5 kgf at 1.0 MPa. The -30 code gives a 30 mm adjustment window: an external stop screw trims the extend stroke anywhere in a 95-125 mm range, so one cylinder serves several jig positions. The 125 mm stroke is longer than the 75 mm maximum standard stroke for this bore, so it is a made-to-order build. Note the stop screw sets the end of travel only - it is not a mid-stroke lock, and the piston still drifts if air is lost.
The short ISO 21287-class body saves about 50% of the mounting length of an ISO 15552 profile cylinder, which is why it suits tight guards and compact gantries. The hard-anodized aluminium body carries an S45C hard-chrome rod, a male rod thread (B code) and fixed TPU bumpers at both ends. Because this model carries the optional -S magnet, CMSE or DMSE reed and solid-state switches can be mounted for end-of-stroke sensing. As a rule of thumb, plan on roughly 60 N (about 6 kg of vertical lift with a 2:1 margin) of usable force at 0.5 MPa rather than the full 100.5 N rating.
Airtac ACPJ Adjustable Compact Cylinder ACPJ16X125-30SB Technical Specifications
| Model | Airtac ACPJ Adjustable Compact Cylinder ACPJ16X125-30SB |
|---|---|
| Series | ACPJ DIN compact cylinder (discontinued) |
| Replacement | ACEJ16X125-30SB |
| 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 ACEJ16X125-30SB (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 ACPJ16X125-30SB
| ACPJ | DIN compact cylinder (adjustable-stroke, discontinued). |
|---|---|
| 16 | Bore size in mm. |
| ×125 | Stroke length in mm. |
| -30 | 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 ACPJ16X125-30SB Is Used
Compact ejection station
The 95-125 mm adjustable range and 100.5 N push at 0.5 MPa eject finished small parts from a plastics assembly jig inside a guard too tight for a full-length cylinder.
Position-verified press fit
With the -S magnet fitted, CMSE switches confirm the trimmed end position while the 140.7 N push at 0.7 MPa seats a bushing in an electronics housing.
Gantry pick-and-place stop
The stop screw trims the extend stroke to match part heights on a conveyor transfer gantry, lifting about 5 kg vertically with a 2:1 margin.
Replacing the Airtac ACPJ Adjustable Compact Cylinder ACPJ16X125-30SB with the ACEJ16X125-30SB
Size the load against 100.5 N push at 0.5 MPa; if your fixture needs more, step up to the 20 mm bore (157.1 N push at 0.5 MPa), and if the load is light the 12 mm bore (56.5 N push) saves space. For vertical lifting, halve the push force for margin - this cylinder lifts about 5 kg safely. The 30 mm adjustment window suits fixtures where the extend stroke must be trimmed on site; remember the stop does not hold a load against air loss. FA/FB flanges and LB feet bolt to the ISO 21287 face, and the -S magnet pairs with CMSE / DMSE switches. Since this model is discontinued, order the ACEJ16X125 as the current drop-in and confirm the ISO 21287 mounting dimensions before swapping, as the ACP is DIN-standard.
Replacement checklist
- ✓ Current-production ACE → ACEJ16X125-30SB
- ✓ 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 ACPJ16X125-30SB 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, with a theoretical maximum of 20.5 kgf at 1.0 MPa. The -30 code gives a 30 mm adjustment window, so the 125 mm extend stroke can be trimmed anywhere between 95 and 125 mm. The 125 mm stroke is a made-to-order build because the standard maximum for a 16 mm bore is 75 mm. Speed range is 30-500 mm/s and operating pressure is 0.15-1.0 MPa (22-145 psi).
It is a short-body compact cylinder with a hard-anodized aluminium body, S45C hard-chrome rod, male rod thread and fixed TPU bumpers at both ends - about 50% shorter in mounting length than an ISO 15552 profile cylinder. The -S magnet this model carries allows CMSE or DMSE switches for position sensing. The ACPJ family is discontinued; the current-production replacement is the ACEJ16X125, a drop-in in the same bore, stroke and force class - confirm the ISO 21287 mounting dimensions before swapping.
Related AirTAC ACE Cylinders
Request a Quote for the ACEJ16X125-30SB
Send us the quantity and destination. We confirm price, stock and lead time on the ACEJ16X125-30SB replacement — usually within 7-8 hours.