
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X60-40S 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 ACQJ40X60-40S is a double-acting JIS compact cylinder with a 40 mm bore and 60 mm full stroke. An external M12x1.25 threaded stop with a lock nut limits the extend end position, providing a usable extend range of 20 to 60 mm. The retract stroke remains completely unaffected. Because the piston area is unchanged, the force output is identical to a standard ACQ of this bore.
Operating pressure spans 0.15 to 1.0 MPa, and the unit integrates fixed elastomer NBR bumpers at both ends for end-of-stroke deceleration. Equipped with a built-in piston magnet (-S), it supports both reed and electronic solid-state switches via its magnetic grooves. The 16 mm rod features a female M8x1.25 thread, and the body uses a PT1/8 port.
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X60-40S |
|---|---|
| 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 extend position on a CNC machining fixture to accommodate varying raw part lengths without fabricating custom stop collars.
Rapidly adjust the extend stroke on a packaging line during product format changes, using the external stop to set new end positions in seconds.
Fine-tune trial end positions on an assembly press during prototype runs, allowing engineers to test multiple engagement depths on the fly.
Choosing this 40 mm bore yields 628.3 N push and 527.8 N pull force at 0.5 MPa. If your application requires less force, the 32 mm bore delivers 402.1 N push, whereas the 50 mm bore offers 981.8 N push for heavier demands. A fixed-stroke ACQ40X60 is sufficient if your end position never requires tuning. To order, confirm the 40 mm bore, 60 mm full stroke, 40 mm adjustable window, the -S magnet option, and the female M8x1.25 rod thread.
Quick checklist
The usable extend range is 20 to 60 mm (a 40 mm window off the 60 mm full stroke). 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.
The M12x1.25 external threaded stop with lock nut mechanically limits the extend length without changing the piston area, so force is unchanged. The cylinder uses fixed elastomer NBR bumpers, not adjustable air cushions. A plain ACQ-type does not hold its load on air loss; for a fail-safe hold, use an external rod lock or pilot-operated check valve.
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