
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X60-50 is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø40mm bore and 60mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
The AirTAC ACQJ40X60-50 is a double-acting JIS compact cylinder with an external threaded stop and lock nut that limits the extend stroke. You can fine-tune the extend end position directly on your machinery, yielding a usable extend range of 10-60 mm (a 60 mm full stroke minus up to a 50 mm window). The retract stroke remains completely unaffected by this adjustment.
Because the piston area is unchanged, the output force is identical to a standard ACQ of the same bore, delivering 628.3 N push and 527.8 N pull at 0.5 MPa. The unit features a fixed NBR elastomer bumper at each end for end-of-stroke deceleration and includes sensor grooves, though this specific configuration ships without a magnet. It operates on PT1/8 ports with a 16 mm piston rod.
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X60-50 |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø40 mm |
| Full stroke | 60 mm |
| Adjuster thread | M12×1.25 |
| Port size | PT1/8 |
| 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 |
| Rod thread | M8×1.25 (F) / M14×1.5 (B) |
Specifications follow the official AirTAC ACQJ datasheet. The adjustable stop shortens the EXTEND stroke only; the piston area — and therefore the force — is the same as a standard ACQ of this bore. Adjustable window options: 10/20/30/40/50/75/100 mm.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 628 N | 528 N |
| 0.7 MPa | 880 N | — |
| Max (@1.0 MPa) | 128 kgf | |
Force equals a standard ACQ of the same bore — the adjuster changes stroke length, not piston area. Actual usable force is lower due to friction; size with a safety margin.
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×60 | Full stroke length in mm. |
| -0 | Adjustable window in mm (extend stroke can be shortened by up to this). |
| S / B | Magnet (S) / male-thread rod (B); omit for none / female thread. |
Thread: PT standard (G / NPT available). Related: ACQ (fixed stroke), ACQD (double rod), TACQ (guided / non-rotating).
Dial in the exact 10 to 60 mm extend position on a CNC machining fixture to accommodate different part lengths without fabricating new mechanical stops.
Rapidly adjust the extend endpoint during product changeovers on an automated assembly line to handle varying component widths efficiently.
Fine-tune the extend stroke on packaging equipment to test trial end positions for pressing or sealing operations without swapping cylinders.
If you need less push force at 0.5 MPa, the 32 mm bore provides 402.1 N, or for higher force, the 50 mm bore yields 981.8 N. A fixed-stroke ACQ40X60 is sufficient if your extend end position never requires on-machine adjustment. When ordering this adjustable variant, confirm the 40 mm bore, 60 mm full stroke, 50 mm window, the default female M8x1.25 rod-end thread, and that no magnet (-S) is required.
Quick checklist
The usable extend range is 10-60 mm (60 mm full stroke minus the 50 mm window). The force is identical to a standard ACQ: 628.3 N push and 527.8 N pull at 0.5 MPa, 879.6 N push at 0.7 MPa, and a maximum push of 128 kgf at 1.0 MPa.
An external M12x1.25 threaded stop with a lock nut limits the extend stroke, allowing on-machine position tuning without changing parts. It changes stroke length only, so force remains unchanged. The retract stroke is unaffected, and fixed NBR bumpers decelerate the load at both ends.
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